CN204720047U - Coriolis acceleration demonstrator - Google Patents
Coriolis acceleration demonstrator Download PDFInfo
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- CN204720047U CN204720047U CN201520264636.7U CN201520264636U CN204720047U CN 204720047 U CN204720047 U CN 204720047U CN 201520264636 U CN201520264636 U CN 201520264636U CN 204720047 U CN204720047 U CN 204720047U
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Abstract
The utility model provides a kind of Coriolis acceleration demonstrator, comprising: supporting mechanism, the first power unit, the second power unit, the first gear train and the second gear train; First power unit and the second power unit can drive the first gear train and the second gear train respectively; Supporting mechanism comprises rotary unit, and rotary unit comprises the spatial accommodation for connecting examined object; First gear train is connected with rotary unit, moves in a circle to drive rotary unit and examined object; Second gear train is arranged on rotary unit, and is connected with spatial accommodation, does rectilinear motion to drive examined object while carrying out circular motion.Above-mentioned demonstrator, illustrate motion state when object under test carries out circular motion and rectilinear motion at the same time intuitively, make learner's understanding Coriolis acceleration Producing reason clearly and direction, enable learner more go deep into thorough understanding Coriolis acceleration.
Description
Technical field
The utility model relates to the technical field of Coriolis acceleration demonstration, especially relates to Coriolis acceleration demonstrator.
Background technology
In the resultant motion of point, when convected motion is for rotating, convected motion and relative motion influence each other, and there will be an additional acceleration, and this acceleration added is Coriolis acceleration; Convected motion refers to the motion of moving reference system relative to quiet reference frame, or people station sees that moving reference system moves on the ground; Relative motion refers to the change in location of object relative to another object.
The earth is the non-inertial reference frame rotated, the rotation of the earth itself can be thought when tellurian object relative earth generation relative motion, now just to there will be coriolis force by the convected motion rotated, this corioliseffect on object, thus makes this object produce Coriolis acceleration; The direction of Coriolis acceleration is perpendicular to angular velocity vector and relative velocity vector, and the size of Coriolis acceleration and the size of relative velocity vector are directly proportional.
In spontaneous phenomenon, also have Coriolis acceleration to exist, such as: the right bank of Northern Hemisphere rivers is washed away by water, and is washed in Ze Shi left bank, the Southern Hemisphere, this phenomenon due to the rotation of the earth and the relative motion of river interaction and produce; Particularly, on the Northern Hemisphere, the Coriolis acceleration of river points to left bank, and Coriolis force acts on right bank, on the contrary and the Southern Hemisphere.
In the prior art, learner can only rely on teaching material and bookish explanation usually to learn Coriolis acceleration, but these paper materials are general all too formulistic and textual for the explanation of Coriolis acceleration, the principles such as Coriolis acceleration Producing reason, size and Orientation can not be got across, this just makes learner be difficult to deeply thorough understanding Coriolis acceleration; And due to formula and word too abstract to the description of Coriolis acceleration, learner can only understand Coriolis acceleration by the imagination, the existence of Coriolis acceleration can not be observed intuitively, which increases the difficulty of study Coriolis acceleration, make learner be difficult to understand.
Utility model content
The purpose of this utility model is to provide Coriolis acceleration demonstrator, its principle such as Producing reason, size and Orientation can not be got across for the explanation of Coriolis acceleration to solve the paper material that exists in prior art, add the difficulty of study Coriolis acceleration, make learner be difficult to the technical matters of deeply thorough understanding Coriolis acceleration.
A kind of Coriolis acceleration demonstrator that the utility model provides, comprising: supporting mechanism, the first power unit, the second power unit, the first gear train and the second gear train; Described first power unit and described second power unit can drive described first gear train and described second gear train respectively; Described supporting mechanism comprises rotary unit, and described rotary unit comprises the spatial accommodation for connecting examined object; Described first gear train is connected with described rotary unit, moves in a circle to drive described rotary unit and described examined object; Described second gear train is arranged on described rotary unit, and is connected with described spatial accommodation, does rectilinear motion to drive described examined object while carrying out circular motion.
Further, described rotary unit comprises: rotating disk, the first swivel plate and the second swivel plate, and described rotating disk is fixedly connected with described first gear train, and described first swivel plate and described second swivel plate are all fixedly installed on described rotating disk; Form described spatial accommodation between described first swivel plate and described second swivel plate, and be provided with web member in described spatial accommodation, one end of described web member is for connecting described examined object, and the other end is connected with described second gear train.
Optimally, described first gear train comprises: driving wheel, engaged wheel and the first central shaft; Described first power unit is connected with described driving wheel, and described driving wheel engages with described engaged wheel, and described engaged wheel fixed cover is located on described first central shaft; Described first central shaft is fixedly connected with described rotating disk.
Optimally, described second gear train comprises: the first belt wheel, the second belt wheel, the second central shaft and crawler belt; Described second power unit is connected with described second central shaft, and described first belt wheel fixed cover is located on described second central shaft, and described second central shaft is connected with described dial rotation; Described second belt wheel and described first swivel plate and described second swivel plate are rotationally connected; Described crawler belt is set on described first belt wheel and the second belt wheel; Described web member is clamp, described clamp and described crawler belt clamping.
Optimally, described second gear train also comprises: the 3rd belt wheel, the first stretching pulley and the second stretching pulley; Described 3rd belt wheel, described first stretching pulley and described second stretching pulley are all rotationally connected with described first swivel plate and described second swivel plate, and described second belt wheel and described 3rd belt wheel are arranged on the both sides of described first belt wheel; Described first stretching pulley is arranged between described second belt wheel and described first belt wheel, and described second stretching pulley is arranged between described 3rd belt wheel and described first belt wheel; Described crawler belt is set on described second belt wheel and the 3rd belt wheel, and contacts with the upper surface of described second stretching pulley with the lower surface of described first belt wheel and described first stretching pulley simultaneously and arrange.
Further, also comprise the measuring mechanism for measuring described examined object coriolis force, described measuring mechanism comprises: support, for recording the measuring unit of described examined object movement locus and the fixed cell for placing described examined object; Described measuring unit is connected with described holder pivots, and described fixed cell and described web member are all fixedly installed on the bracket; Described first swivel plate and described second swivel plate are provided with track, and described measuring mechanism can do rectilinear motion along described track, and described measuring unit can rotate with the motion of described measuring mechanism.
Further, described measuring unit comprises: for being wound around the first reel of setting-out coordinate paper and the second reel for being wound around non-setting-out coordinate paper; Described fixed cell comprises the fixed bar for placing described examined object; Described support comprises the first fixed head, the second fixed head and the 3rd fixed head, and described first fixed head is fixedly installed between described first fixed head and described second fixed head with the parallel placement of described second fixed head, described 3rd fixed head; Described first reel and described second reel are all rotationally connected with described first fixed head and described second fixed head, and described second reel can rotate together along with described first reel; Described fixed bar is fixedly installed between described first fixed head and described second fixed head, and described fixed bar relative to described first reel and described second reel away from described spatial accommodation; Described web member is fixedly installed on described 3rd fixed head; Described measuring mechanism also comprises the 3rd gear train, and described 3rd gear train is connected with described first reel, and described 3rd gear train can drive described first reel to turn in the same direction all the time along with the motion of described measuring mechanism.
Further, described support also comprises the 4th fixed head; Described 3rd gear train comprises the first gear, the second gear, the 3rd gear, the 4th gear, the 5th gear and the one-way wheel that are rotationally connected with described 4th fixed head; Described first swivel plate is provided with toothed track, and described first gear engages with described toothed track, and can move in described toothed track along with the motion of described measuring mechanism; Described second gear and described 4th gear all with described first gears meshing, described 3rd gear and described second gears meshing, described 5th gear is connected with described first reel; Described one-way wheel comprises disk, claw, brambles wheel and pinion wheel; Described disk, described brambles wheel and described pinion wheel are coaxially arranged, and described claw is fixedly installed on described disk, and described pinion wheel and described brambles are taken turns and are fixedly installed; Described claw can promote described chaste tree ratcheting motion, or at the surface sliding that described brambles are taken turns; Described one-way wheel is multiple, comprises the first one-way wheel and the second one-way wheel; The disk of described first one-way wheel is fixedly connected with described 4th gear with described 3rd gear respectively with the disk of described second one-way wheel, and coaxially arranges; The pinion wheel of described first one-way wheel and the pinion wheel of described second one-way wheel all with described 5th gears meshing.
Further, described fixed bar is arranged with multistage elastic component, and the space between every two described elastic components is for placing described examined object.
Further, described support also comprises the 5th fixed head, described 5th fixed head is provided with for connecting described examined object first through hole, for the second through hole of fixing detail pen and the third through-hole for fixing tautness meter, and described 5th fixed head can move together along with described examined object.
Compared with prior art, the beneficial effects of the utility model are:
The Coriolis acceleration demonstrator that the utility model provides, under the effect of the first gear train and the second gear train, examined object can be made simultaneously to carry out circular motion and rectilinear motion, and move based on circular motion, rectilinear motion carries out based on circular motion; By above-mentioned demonstrator, illustrate motion state when object under test carries out circular motion and rectilinear motion at the same time intuitively, enable learner understanding Coriolis acceleration Producing reason, size and Orientation clearly, add the interest in learning process, reduce the difficulty understanding Coriolis acceleration, enable learner more go deep into thorough this physical phenomenon of understanding Coriolis acceleration.
Accompanying drawing explanation
The one-piece construction schematic diagram one of the Coriolis acceleration demonstrator that Fig. 1 provides for the utility model embodiment;
The partial structurtes schematic diagram one of the Coriolis acceleration demonstrator that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the front view of the Coriolis acceleration demonstrator shown in Fig. 2;
The partial structurtes schematic diagram two of the Coriolis acceleration demonstrator that Fig. 4 provides for the utility model embodiment;
First viewing angle constructions schematic diagram of the measuring mechanism of the Coriolis acceleration demonstrator that Fig. 5 provides for the utility model embodiment;
Second viewing angle constructions schematic diagram of the measuring mechanism of the Coriolis acceleration demonstrator that Fig. 6 provides for the utility model embodiment;
Fig. 7 is the front view of the 3rd gear train shown in Fig. 6;
Fig. 8 is the rear view of the 3rd gear train shown in Fig. 7.
Reference numeral:
1-supporting mechanism; 2-first gear train; 3-second gear train;
4-first power unit; 5-second power unit; 6-clamp;
7-track; 8-measuring mechanism; 9-slide block;
11-casing; 12-back up pad; 13-rotary unit;
21-driving wheel; 22-engaged wheel; 23-first central shaft;
31-first belt wheel; 32-second belt wheel; 33-the 3rd belt wheel;
34-first stretching pulley; 35-second stretching pulley; 36-second central shaft;
37-stationary shaft; 38-crawler belt; 81-support;
82-measuring unit; 83-fixed cell; 84-the 3rd gear train;
131-rotating disk; 132-first swivel plate; 133-second swivel plate;
134-spatial accommodation; 135-thrust bearing; 811-first fixed head;
812-second fixed head; 813-the 3rd fixed head; 814-the 4th fixed head;
815-the 5th fixed head; 821-first reel; 822-second reel;
831-fixed bar; 832-spring; 840-toothed track;
841-first gear; 842-second gear; 843-the 3rd gear;
844-the 4th gear; 845-the 5th gear; 846-the 6th gear;
847-the 7th gear; 848-first one-way wheel; 849-second one-way wheel;
8151-first through hole; 8152-second through hole; 8153-third through-hole;
8481-first disk; 8482-first brambles are taken turns; 8483-first pinion wheel;
8484-first claw; 8491-second disk; 8492-second brambles are taken turns;
8493-second pinion wheel; 8494-second claw.
Embodiment
As Figure 1-4, a kind of Coriolis acceleration demonstrator that the utility model embodiment provides, comprising: supporting mechanism 1, first power unit 4, second power unit 5, first gear train 2 and the second gear train 3; First power unit 4 and the second power unit 5 can drive the first gear train 2 and the second gear train 3 respectively; Supporting mechanism 1 comprises rotary unit 13, and rotary unit 13 comprises the spatial accommodation 134 for connecting examined object; First gear train 2 is connected with rotary unit 13, moves in a circle to drive rotary unit 13 and examined object; Second gear train 3 is arranged on rotary unit 13, and is connected with spatial accommodation 134, does rectilinear motion to drive examined object while carrying out circular motion.
The Main Function of supporting mechanism 1 supports and stablizes all components being arranged on this Coriolis acceleration demonstrator, and provide the space of placement for it; Therefore, every structure that can function as described above can as the supporting mechanism 1 described in the present embodiment, supporting mechanism 1 can have multiple component to form, such as: multiple support bar or multiple back up pad 12, casing 11 can be formed, to be used for placing some component between support bar or back up pad 12.
Supporting mechanism 1 comprises a rotary unit 13 that can move in a circle with the first gear train 2, this rotary unit 13 only can contain a component, also can be the combination of multiple component, but it should be noted that, component on this rotary unit 13 can move in a circle along with the first gear train 2, and therefore the combination of the every component or component that can realize above-mentioned functions can as the rotary unit 13 of the present embodiment indication.
Rotary unit 13 comprises a spatial accommodation 134, and being mainly used in of this spatial accommodation 134 connects examined object and the second gear train 3, thus makes the second gear train 3 that thing to be detected can be driven to do rectilinear motion; Particularly, the connection of examined object and the second gear train 3 can be realized by the component be arranged in spatial accommodation 134, also can directly examined object is placed on the second gear train 3; It should be noted that, when examined object is directly placed on the second gear train 3, second gear train 3 only needs to drive examined object to do rectilinear motion, constraining force should do not produced to examined object, but inevitably except friction force, the friction force such as produced due to the contact on surface.
Particularly, as shown in Figure 1, supporting mechanism 1 can also comprise a back up pad 12 and a casing 11, back up pad 12 is arranged on the top of casing 11, and near rotary unit 13, first gear train 2 and the first power unit 4 are arranged in casing 11, and the clutch end of the first gear train 2 is connected with rotary unit 13 with back up pad 12 through casing 11; Being mainly used to stable and supporting rotary unit 13 of back up pad 12, makes the rotation that rotary unit 13 can be more stable, thus reduces as much as possible due to the vibration of rotary unit 13 and impact that the Coriolis acceleration of measuring targets produces; First gear train 2 and the second gear train 3 are placed on casing 11 inner, the Coriolis acceleration demonstrator structure that the present embodiment is provided is compacter, is convenient for carrying and moves.
First power unit 4 and the second power unit 5 all have multiple choices, such as: motor, internal combustion engine or oil motor, etc.First gear train 2 and the second gear train 3 also all have multiple choices, such as: gear drive, chain drive, belt gear, etc.
As the preferred scheme of one, the first power unit 4 and the second power unit 5 all use motor, motor use and control conveniently, work efficiency is high, reliable, price is lower, and does not have flue dust, smell, do not pollute the environment; And on every platform motor, all speed regulator is set, to control the rotating speed of motor better and to turn to, thus turning to and rotating speed of examined object circular motion can be changed, and the direction of motion of rectilinear motion and the size of movement velocity, finally can demonstrate the Coriolis acceleration of examined object when two kinds of motion superpositions under different situations.
As the preferred scheme of one, because the stability requirement of this Coriolis acceleration demonstrator to determinand circular motion and rectilinear motion is higher, therefore gear drive selected by the first gear train 2, and belt gear selected by the second gear train 3; This is because gear drive stability when providing circular motion is better, and ratio of gear is accurate, efficiency is high, compact conformation, life-span are long; And belt gear can not produce larger concussion when doing rectilinear motion, good stability can be kept.
The concrete using method of the Coriolis acceleration demonstrator that the present embodiment provides is: first examined object be placed on Coriolis acceleration demonstrator, then the first gear train 2 is opened, driven rotary unit 13 and the second gear train 3 be arranged on rotary unit 13 move in a circle, the motion of rotary unit 13 drives examined object also to start to move in a circle, now can observe examined object static relative to rotary unit 13, and then open the second gear train 3, examined object is driven to start to do rectilinear motion on the basis of circular motion, then just can observe examined object and have certain deviation degree on the basis of rectilinear motion, the exercising result of the Coriolis acceleration that Here it is produces due to the coriolis force acted in examined object.
The Coriolis acceleration demonstrator that the present embodiment provides, illustrate motion state when object under test carries out circular motion and rectilinear motion at the same time intuitively, enable learner understanding Coriolis acceleration Producing reason, size and Orientation clearly, add the interest in learning process, reduce the difficulty understanding Coriolis acceleration, enable learner more go deep into thorough this physical phenomenon of understanding Coriolis acceleration.
On the basis of above-described embodiment, as the preferred scheme of one, as depicted in figs. 1 and 2, rotary unit 13 comprises: rotating disk 131, first swivel plate 132 and the second swivel plate 133, rotating disk 131 is fixedly connected with the first gear train 2, and the first swivel plate 132 and the second swivel plate 133 are all fixedly installed on rotating disk 131; Form spatial accommodation 134 between first swivel plate 132 and the second swivel plate 133, and be provided with web member in spatial accommodation 134, one end of web member is for connecting examined object, and the other end is connected with the second gear train 3.
Rotating disk 131 is fixedly connected with the clutch end of the first gear train 2, thus rotating disk 131 can move in a circle along with the first gear train 2, be fixedly installed on the first swivel plate 132 on rotating disk 131 and the second swivel plate 133 forms spatial accommodation 134, realized the connection of examined object and the second gear train 3 by the web member be arranged in this spatial accommodation 134, thus can ensure that examined object not only can move in a circle but also can do rectilinear motion.
Web member be mainly used to connection second gear train 3 and examined object, can be that web member is directly connected with examined object, also can be that web member is connected with examined object indirectly by other component, and examined object be arranged on this other component.
It should be noted that, web member can have multiple choices, and every component that can realize connecting examined object and the second gear train 3 can be the web member of the present embodiment indication, such as: clamp 6 or connecting link etc.
When web member is directly connected with examined object, examined object is only placed on this web member, that is, this web member only applies the holding power of vertical direction to examined object, and without other external force in other direction.
Adopt said structure as rotary unit 13, not only can realize rotation and the supporting role of rotary unit 13, but also simplify the structure of the Coriolis acceleration demonstrator that the present embodiment provides, make it easy to carry.
On the basis of above-described embodiment, as the preferred scheme of one, as shown in Figures 2 and 3, the first gear train 2 comprises: driving wheel 21, engaged wheel 22 and the first central shaft 23; First power unit 4 is connected with driving wheel 21, and driving wheel 21 engages with engaged wheel 22, and engaged wheel 22 fixed cover is located on the first central shaft 23; First central shaft 23 is fixedly connected with rotating disk 131.
Driving wheel 21 and engaged wheel 22 are gear, and the diameter of engaged wheel 22 is less than the diameter of driving wheel 21, arrange the rotating speed that can reduce engaged wheel 22 like this, thus ensure the stability that rotating disk 131, first swivel plate 132 and the second swivel plate 133 rotate further.
Driving wheel 21 is connected with the clutch end of the first power unit 4, and the rotating speed of driving wheel 21 regulates by controlling the first power unit 4 with turning to.
It should be noted that, engaged wheel 22 and be all connected by key between the first central shaft 23, first central shaft 23 and rotating disk 131, thus ensure that the rotation of engaged wheel 22 can drive the rotation of the first central shaft 23, first central shaft 23 that rotating disk 131 can be driven to rotate, guarantee its synchronism of rotating.
As the preferred scheme of one, the first central shaft 23 is also arranged with thrust bearing 135, this thrust bearing 135 is arranged between rotating disk 131 and back up pad 12, and the base of thrust bearing 135 is fixedly connected with back up pad 12, and blowout patche is fixedly connected with rotating disk 131; Thrust bearing 135 is set, rotating disk 131 is not contacted with back up pad 12, by being slidably connected between rotating disk 131 and back up pad 12, becoming rolls connects, reduce the friction force of rotating disk 131 when moving in a circle, rotating disk 131 is rotated convenient, but also the output of power can be reduced, economize energy.
On the basis of above-described embodiment, as the preferred scheme of one, as in Figure 2-4, the second gear train 3 comprises: the first belt wheel 31, second belt wheel 32, second central shaft 36 and crawler belt 38; Second power unit 5 is connected with the second central shaft 36, and the first belt wheel 31 fixed cover is located on the second central shaft 36, and the second central shaft 36 is rotationally connected with rotating disk 131; Second belt wheel 32 and the first swivel plate 132 and the second swivel plate 133 are rotationally connected; Crawler belt 38 is set on the first belt wheel 31 and the second belt wheel 32; Web member is clamp 6, clamp 6 and crawler belt 38 clamping.
Second power unit 5 is fixedly installed on rotating disk 131; Rotating disk 131 is fixedly installed two set collars, the second central shaft 36 through two set collars, and is rotationally connected with set collar; Second belt wheel 32 is realized and being rotationally connected of the first swivel plate 132 and the second swivel plate 133 by stationary shaft 37, and stationary shaft 37 is fixedly installed between the first swivel plate 132 and the second swivel plate 133.
Second power unit 5 can drive the second central shaft 36 to rotate, second central shaft 36 can make cover the first belt wheel 31 thereon rotate, then crawler belt 38 can drive the second belt wheel 32 to rotate, and finally realizes crawler belt 38 and do rectilinear motion between the first belt wheel 31 and the second belt wheel 32.
Adopt clamp 6 as web member, make clamp 6 and crawler belt 38 clamping, make the connection between the second gear train 3 and examined object more stable, avoid rocking between web member and crawler belt 38, thus guarantee that the Coriolis acceleration of object under test can not the impact of extraneous factor.
On the basis of above-described embodiment, particularly, as in Figure 2-4, the second gear train 3 also comprises: the 3rd belt wheel 33, first stretching pulley 34 and the second stretching pulley 35; 3rd belt wheel 33 and the first swivel plate 132 and the second swivel plate 133 are rotationally connected, and the second belt wheel 32 and the 3rd belt wheel 33 are arranged on the both sides of the first belt wheel 31; First stretching pulley 34 is arranged between the second belt wheel 32 and the first belt wheel 31, and the second stretching pulley 35 is arranged between the 3rd belt wheel 33 and the first belt wheel 31; Crawler belt 38 is set on the second belt wheel 32 and the 3rd belt wheel 33, and contacts with the upper surface of the second stretching pulley 35 with the lower surface of the first belt wheel 31 and the first stretching pulley 34 simultaneously and arrange.
3rd belt wheel 33, first stretching pulley 34 and the second stretching pulley 35 are all rotationally connected by stationary shaft 37 and the first swivel plate 132 and the second swivel plate 133.
Second belt wheel 32 and the 3rd belt wheel 33 are arranged on the both sides of the first belt wheel 31, when transmission distance is longer, crawler belt 38 is in tensioning state all the time, effectively can avoid the situation occurring that the part crawler belt 38 between adjacent two belt wheels sinks, thus guarantee that examined object does rectilinear motion in same level all the time, make the measurement result of Coriolis acceleration more accurate.
Further, between the first belt wheel 31 and the second belt wheel 32 and the first stretching pulley 34 and the second stretching pulley 35 is set between first belt wheel 31 and the 3rd belt wheel 33 respectively, and while crawler belt 38 being set in the second belt wheel 32 and the 3rd belt wheel 33, also make crawler belt 38 successively through the upper surface of the first stretching pulley 34, the lower surface of the first belt wheel 31 and the upper surface of the second stretching pulley 35, this situation that above-mentioned part crawler belt 38 just can be avoided further to sink occurs, can also guarantee that crawler belt 38 is in tensioning state all the time to greatest extent simultaneously, can not skid in motion process, thus ensure the stationarity that crawler belt 38 moves, and then guarantee that examined object remains metastable state when doing rectilinear motion.
On the basis of above-described embodiment, particularly, as shown in Fig. 1, Fig. 5 and Fig. 6, the Coriolis acceleration demonstrator that the present embodiment provides also comprises the measuring mechanism 8 for measuring examined object coriolis force, and measuring mechanism 8 comprises: support 81, for recording the measuring unit 82 of examined object movement locus and the fixed cell 83 for placing examined object; Measuring unit 82 and support 81 are rotationally connected, and fixed cell 83 and web member are all fixedly installed on support 81; First swivel plate 132 and the second swivel plate 133 are provided with track 7, and measuring mechanism 8 can do rectilinear motion along track 7, and measuring unit 82 can rotate with the motion of measuring mechanism 8.
The Main Function of measuring mechanism 8 is: when examined object carries out circular motion and rectilinear motion simultaneously, measures the size of the coriolis force suffered by this examined object and records its movement locus owing to being subject to the effect of coriolis force and the change produced; Therefore, it should be noted that, every structure meeting above-mentioned effect can as the measuring mechanism 8 of the present embodiment indication.
Measuring mechanism 8 includes but are not limited to following a few part: support 81, measuring unit 82 and fixed cell 83; The effect of support 81 is all components supporting measuring mechanism 8; Measuring unit 82 can rotate along with the motion of measuring mechanism 8, leaves the movement locus of examined object simultaneously, so that subsequent calculations Coriolis acceleration uses; The Main Function of fixed cell 83 places examined object, it should be noted that, examined object is only be placed on fixed cell 83, fixed cell 83 applies external force can't to examined object in its direction of motion, thus ensure that examined object is only subject to the effect of coriolis force in the movement direction, inevitably friction force should foreclose certainly.
First swivel plate 132 and the second swivel plate 133 arrange track 7, the slip of mechanism 8 can be convenient for measuring; Certainly, it should be noted that, measuring mechanism 8 can comprise the component matched with this track 7, this component can be pulley, guide pillar or other structure.
Measuring mechanism 8 is set, the coriolis force of examined object can be measured and record its movement locus, make learner can understand Coriolis acceleration more intuitively, and the correctness of proof theory calculating by experiment.
The concrete using method of the Coriolis acceleration demonstrator that the present embodiment provides is: first examined object be placed on fixed cell 83, then the first power unit 4 is opened, thus make examined object start to move in a circle, after circular motion is stable, open the second power unit 5, now measuring mechanism 8 can advance along with crawler belt 38, thus make examined object do rectilinear motion, measuring mechanism 8 can drive measuring unit 82 to rotate while moving, thus the movement locus of record examined object; After completing once experiment, can by changing the rotating speed of the first power unit 4 and the second power unit 5 and turning to the direction and rotating speed that change examined object circular motion, and the direction of rectilinear motion and velocity magnitude, thus when measuring different rotating speeds and direction, the size and Orientation of the coriolis force suffered by examined object.
On the basis of above-described embodiment, as the preferred scheme of one, as shown in Figure 5 and Figure 6, measuring unit 82 comprises: for being wound around the first reel 821 of setting-out coordinate paper and the second reel 822 for being wound around non-setting-out coordinate paper; Fixed cell 83 comprises the fixed bar 831 for placing examined object; Support 81 comprises: the first fixed head 811, second fixed head 812 and the 3rd fixed head 813, first fixed head 811 and the parallel placement of the second fixed head 812, and the 3rd fixed head 813 is fixedly installed between the first fixed head 811 and the second fixed head 812; First reel 821 and the second reel 822 are all rotationally connected with the first fixed head 811 and the second fixed head 812, and the second reel 822 can rotate together along with the first reel 821; Fixed bar 831 is fixedly installed between the first fixed head 811 and the second fixed head 812, and fixed bar 831 relative to the first reel 821 and the second reel 822 away from spatial accommodation 134; Web member is fixedly installed on the 3rd fixed head 813; Measuring mechanism 8 also comprises the 3rd gear train the 84, three gear train 84 and is connected with the first reel 821, and the 3rd gear train 84 can drive the first reel 821 to turn in the same direction all the time along with the motion of measuring mechanism 8.
Fixed bar 831 can have multiple, and examined object is set on fixed bar 831, and in order to reduce the impact of fixed bar 831 on examined object Coriolis acceleration as far as possible, therefore the outside surface of fixed bar 831 should be smooth as much as possible.
Measuring unit 82 comprises the first reel 821 and the second reel 822, wherein the one ends wound of the coordinate paper of non-setting-out is on the second reel 822, the other end is wrapped on the first reel 821, when the first reel 821 rotates, coordinate paper will be wrapped in its outside surface, and the rotation of coordinate paper will give the second reel 822 external force, thus the second reel 822 can be rotated along with the first reel 821.
The Main Function of the 3rd gear train 84 is that the first reel 821 is rotated towards same direction all the time, no matter that is, measuring mechanism 8 advances or retreats, the first reel 821 rotates counterclockwise all the time or rotates clockwise; First reel 821 is rotated towards a direction all the time, can avoid because examined object direction of motion is inconsistent, and the situation repeating setting-out on coordinate paper occurs, ensure the sharpness of movement locus, record the movement locus of examined object more accurately, thus guarantee to calculate exactly the size of Coriolis acceleration.
3rd gear train 84 can have multiple choices, such as: the cooperation coordinating or can control motor and the transmission shaft turned to of multiple gear and multiple one-way wheel, etc., therefore, it should be noted that, every mechanism that can meet above-mentioned effect can be the 3rd gear train 84 of the present embodiment indication.
Above-mentioned measuring mechanism 8, uses multiple fixed head to make fixed cell 83 and measuring unit 82, makes this measuring mechanism 8 compact conformation, and has stability preferably; Meanwhile, by leaving the movement locus of examined object on coordinate paper, the existence of coriolis force and Coriolis acceleration can be proved more intuitively, but also be convenient to calculate Coriolis acceleration.
On the basis of above-described embodiment, as the preferred scheme of one, particularly, as viewed in figures 5-8, support 81 also comprises the 4th fixed head 814; 3rd gear train 84 comprises the first gear 841, second gear 842, the 3rd gear 843, the 4th gear 844, the 5th gear 845 and the one-way wheel that are rotationally connected with the 4th fixed head 814; First swivel plate 132 is provided with toothed track 840 track 7, first gear 841 engage with toothed track 840 track 7, and can moves on toothed track 840 track 7 along with the motion of measuring mechanism 8; Second gear 842 and the 4th gear 844 all engage with the first gear 841, and the 3rd gear 843 engages with the second gear 842, and the 5th gear 845 is connected with the first reel 821; One-way wheel comprises disk, claw, brambles wheel and pinion wheel; Disk, brambles wheel and pinion wheel are coaxially arranged, and claw is fixedly installed on disk, and pinion wheel and brambles are taken turns and are fixedly installed; Claw can promote chaste tree ratcheting motion, or at the surface sliding that brambles are taken turns; One-way wheel is multiple, comprises the first one-way wheel 848 and the second one-way wheel 849; The disk of the first one-way wheel 848 is fixedly connected with the 4th gear 844 with the 3rd gear 843 respectively with the disk of the second one-way wheel 849, and coaxially arranges; The pinion wheel of the first one-way wheel 848 and the pinion wheel of the second one-way wheel 849 all engage with the 5th gear 845.
First gear 841, second gear 842, the 3rd gear 843, the 4th gear 844, the 5th gear 845 and one-way wheel are all realized and being rotationally connected of the 4th fixed head 814 by coupling shaft.
For convenience of description, by the disk of the first one-way wheel 848, brambles wheel, pinion wheel and claw called after: first disk 8481, first brambles wheel the 8482, first pinion wheel 8483 and the first claw 8484; By the disk of the second one-way wheel 849, brambles wheel, pinion wheel and claw called after: second disk 8491, second brambles wheel the 8492, second pinion wheel 8493 and the second claw 8494.
3rd gear 843 and the first disk 8481, first brambles take turns 8482 and first pinion wheel 8483 coaxially arranged by same coupling shaft, and this coupling shaft not transmitting torque, namely, the rotation of the 3rd gear 843 only can drive the first disk 8481 be fixedly connected with it to rotate, and the rotation of the first disk 8481 can not make the first brambles wheel 8482 rotate, the rotation of the first brambles wheel 8482 can only drive by the promotion of the first claw 8484 or by taking turns the rotation of the first pinion wheel 8483 that 8482 are fixedly connected with these first brambles; When first brambles wheel 8482 rotation be driven by the rotation of the first pinion wheel 8483 time, first brambles wheel 8482 is contrary with turning to of the first disk 8481, now the first claw 8484 does not have External Force Acting to the first brambles wheel 8482, but takes turns the surface sliding of 8482 along the first brambles.
4th gear 844 and the second disk 8491, second brambles take turns 8492 and second pinion wheel 8493 coaxially arranged by same coupling shaft, and this coupling shaft not transmitting torque, namely, the rotation of the 4th gear 844 only can drive the second disk 8491 be fixedly connected with it to rotate, and the rotation of the second disk 8491 can not make the second brambles wheel 8492 rotate, the rotation of the second brambles wheel 8492 can only drive by the promotion of the second claw 8494 or by taking turns the rotation of the second pinion wheel 8493 that 8492 are fixedly connected with these second brambles; When second brambles wheel 8492 rotation be driven by the rotation of the second pinion wheel 8493 time, second brambles wheel 8492 is contrary with turning to of the second disk 8491, now the second claw 8494 does not have External Force Acting to the second brambles wheel 8492, but takes turns the surface sliding of 8492 along the second brambles.
5th gear 845 directly or is indirectly connected with the first reel 821 by coupling shaft, and the 5th gear 845 engages with the first pinion wheel 8483 and the second pinion wheel 8493 simultaneously, first gear 841 engages with the second gear 842 and the 4th gear 844 simultaneously, and the second gear 842 engages with the 3rd gear 843.
As the preferred scheme of one, as shown in Figure 5,5th gear 845 is connected indirectly with the first reel 821, therefore, 3rd gear train 84 can also comprise the 6th gear 846 and the 7th gear 847,6th gear 846 and the 5th gear 845 are coaxially arranged, and the 7th gear 847 engages with the 6th gear 846, and the 7th gear 847 is connected with the first reel 821; Coupling shaft between 5th gear 845 and the 6th gear 846 can transmitting torque, that is, the rotation of the 5th gear 845, and the 6th gear 846 can be driven to rotate; Select the 5th gear 845 to be indirectly connected with the first reel 821, can ensure to make total compact.
By said structure, no matter just can ensure that the first gear 841 rotates clockwise or rotates counterclockwise, the first reel 821 all rotates towards same direction; And said gear transmission coordinates the structure of one-way wheel simple, transmission stability is strong, can meet the requirement for stability of Coriolis acceleration demonstrator that the present embodiment provides to greatest extent.
Only can promote the first brambles wheel 8482 for the first claw 8484 to rotate clockwise and the second claw 8494 only can promote the second brambles wheel and 8492 to rotate clockwise, illustrate that the concrete mode of motion of the 3rd gear train 84 of the Coriolis acceleration demonstrator that the present embodiment provides is:
When the first gear 841 rotates counterclockwise, second gear 842 rotates clockwise, 3rd gear 843 rotates counterclockwise, first disk 8481 rotates counterclockwise, first claw 8484 also rotates counterclockwise, therefore the first claw 8484 takes turns 8482 applied thrusts can not to the first brambles, can not promote the first brambles wheel 8482 and rotate; When first gear 841 rotates counterclockwise, 4th gear 844 rotates clockwise, second disk 8491 rotates clockwise, second claw 8494 also rotates clockwise, now the second claw 8494 can take turns 8492 applied thrusts to the second brambles, thus push the second brambles wheel and 8492 to rotate clockwise, when second brambles wheel 8492 rotates clockwise, the second pinion wheel 8493 is driven to rotate clockwise, then the 5th gear 845 rotates counterclockwise, 6th gear 846 rotates counterclockwise, and the 7th gear 847 rotates clockwise, thus rotates clockwise with the first reel 821; When 5th gear 845 rotates counterclockwise, the first pinion wheel 8483 rotates clockwise, and the first brambles wheel 8482 rotates clockwise, and the first claw 8484 takes turns 8482 surface slidings the first brambles.
When the first gear 841 rotates clockwise, second gear 842 rotates counterclockwise, 3rd gear 843 rotates clockwise, first disk 8481 rotates clockwise, first claw 8484 also rotates clockwise, now the first claw 8484 can take turns 8482 applied thrusts to the first brambles, thus push the first brambles wheel and 8482 to rotate clockwise, when first brambles wheel 8482 rotates clockwise, the first pinion wheel 8483 is driven to rotate clockwise, then the 5th gear 845 rotates counterclockwise, 6th gear 846 rotates counterclockwise, 7th gear 847 rotates clockwise, thus rotate clockwise with the first reel 821, when first gear 841 rotates clockwise, 4th gear 844 rotates counterclockwise, and the second disk 8491 rotates counterclockwise, and the second claw 8494 also rotates counterclockwise, therefore the second claw 8494 takes turns 8492 applied thrusts can not to the second brambles, can only at the surface sliding of the second brambles wheel 8492, when 5th gear 845 rotates counterclockwise, drive the second pinion wheel 8493 to rotate clockwise, and the second brambles wheel 8492 also rotate clockwise.
On the basis of above-described embodiment, particularly, as viewed in figures 5-8, fixed bar 831 is arranged with multistage spring 832 elastic component, and the space between every two spring 832 elastic components is for placing examined object.
The effect of elastic component is, when examined object moves on fixed bar 831, by observing elastic component by the degree compressed, describes the side-play amount of examined object and the size of Coriolis acceleration intuitively; Therefore, every there is flexible component can as the elastic component of the present embodiment indication, such as: spring 832 or resilient ring, etc.
Because spring 832 is comparatively obvious by deflection during compression, be convenient to eye-observation, therefore the preferred spring 832 of the elastic component of the present embodiment.
On the basis of above-described embodiment, particularly, as viewed in figures 5-8, support 81 also comprises the 5th fixed head 815,5th fixed head 815 is provided with for connecting examined object first through hole 8151, for the second through hole 8152 of fixing detail pen and the third through-hole 8153 for fixing tautness meter, and the 5th fixed head 815 can move together along with examined object.Preferably, examined object selects slide block 9 in the present embodiment, and the connection of slide block 9 and the first through hole 8151 can be dismountable connection also can be fixing connection; 5th fixed head 815 arranges the second through hole 8152, convenient placement and preservation detail pen; Arrange third through-hole 8153, convenient fixing tautness meter, when slide block 9 moves with the 5th fixed head 815, can pull tautness meter simultaneously, tautness meter just can show the instant number of degrees, thus can measure the coriolis force size of slide block 9 when a certain position.
As the preferred scheme of one, as viewed in figures 5-8, the quantity of fixed bar 831 is two, and the quantity of slide block 9 is also two; Two slide blocks 9 are set on one of them fixed bar 831 respectively, and be all connected with the 5th fixed head 815, simultaneously in order to ensure the stability that slide block 9 moves, the center of two slide blocks 9 is equal relative to the distance at the 5th fixed head 815 center, and the center superposition of the center of circle of the second through hole 8152 and the 5th fixed head 815, detail pen and coordinate paper treat that setting-out surface is vertical; The quantity of tautness meter is also two, is separately positioned on the both sides of the 5th fixed head 815, no matter so just can guarantee that slide block 9 whichaway moves can measure its coriolis force.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a Coriolis acceleration demonstrator, is characterized in that, comprising: supporting mechanism, the first power unit, the second power unit, the first gear train and the second gear train;
Described first power unit and described second power unit can drive described first gear train and described second gear train respectively;
Described supporting mechanism comprises rotary unit, and described rotary unit comprises the spatial accommodation for connecting examined object;
Described first gear train is connected with described rotary unit, moves in a circle to drive described rotary unit and described examined object;
Described second gear train is arranged on described rotary unit, and is connected with described spatial accommodation, does rectilinear motion to drive described examined object while carrying out circular motion.
2. Coriolis acceleration demonstrator according to claim 1, it is characterized in that, described rotary unit comprises: rotating disk, the first swivel plate and the second swivel plate, described rotating disk is fixedly connected with described first gear train, and described first swivel plate and described second swivel plate are all fixedly installed on described rotating disk;
Form described spatial accommodation between described first swivel plate and described second swivel plate, and be provided with web member in described spatial accommodation, one end of described web member is for connecting described examined object, and the other end is connected with described second gear train.
3. Coriolis acceleration demonstrator according to claim 2, is characterized in that, described first gear train comprises: the first central shaft, driving wheel and engaged wheel;
Described first power unit is connected with described driving wheel, and described driving wheel engages with described engaged wheel, and described engaged wheel fixed cover is located on described first central shaft;
Described first central shaft is fixedly connected with described rotating disk.
4. Coriolis acceleration demonstrator according to claim 2, is characterized in that, described second gear train comprises: the first belt wheel, the second belt wheel, the second central shaft and crawler belt;
Described second power unit is connected with described second central shaft, and described first belt wheel fixed cover is located on described second central shaft, and described second central shaft is connected with described dial rotation;
Described second belt wheel and described first swivel plate and described second swivel plate are rotationally connected;
Described crawler belt is set on described first belt wheel and the second belt wheel;
Described web member is clamp, described clamp and described crawler belt clamping.
5. Coriolis acceleration demonstrator according to claim 4, is characterized in that, described second gear train also comprises: the 3rd belt wheel, the first stretching pulley and the second stretching pulley;
Described 3rd belt wheel, described first stretching pulley and described second stretching pulley are all rotationally connected with described first swivel plate and described second swivel plate, and described second belt wheel and described 3rd belt wheel are arranged on the both sides of described first belt wheel;
Described first stretching pulley is arranged between described second belt wheel and described first belt wheel, and described second stretching pulley is arranged between described 3rd belt wheel and described first belt wheel;
Described crawler belt is set on described second belt wheel and the 3rd belt wheel, and contacts with the upper surface of described second stretching pulley with the lower surface of described first belt wheel and described first stretching pulley simultaneously and arrange.
6. the Coriolis acceleration demonstrator according to any one of claim 2-5, it is characterized in that, also comprise the measuring mechanism for measuring described examined object coriolis force, described measuring mechanism comprises: support, for recording the measuring unit of described examined object movement locus and the fixed cell for placing described examined object;
Described measuring unit is connected with described holder pivots, and described fixed cell and described web member are all fixedly installed on the bracket;
Described first swivel plate and described second swivel plate are provided with track, and described measuring mechanism can do rectilinear motion along described track, and described measuring unit can rotate with the motion of described measuring mechanism.
7. Coriolis acceleration demonstrator according to claim 6, is characterized in that, described measuring unit comprises: for being wound around the first reel of setting-out coordinate paper and the second reel for being wound around non-setting-out coordinate paper;
Described fixed cell comprises the fixed bar for placing described examined object;
Described support comprises the first fixed head, the second fixed head and the 3rd fixed head, and described first fixed head is fixedly installed between described first fixed head and described second fixed head with the parallel placement of described second fixed head, described 3rd fixed head;
Described first reel and described second reel are all rotationally connected with described first fixed head and described second fixed head, and described second reel can rotate together along with described first reel;
Described fixed bar is fixedly installed between described first fixed head and described second fixed head, and described fixed bar relative to described first reel and described second reel away from described spatial accommodation;
Described web member is fixedly installed on described 3rd fixed head;
Described measuring mechanism also comprises the 3rd gear train, and described 3rd gear train is connected with described first reel, and described 3rd gear train can drive described first reel to turn in the same direction all the time along with the motion of described measuring mechanism.
8. Coriolis acceleration demonstrator according to claim 7, is characterized in that, described support also comprises the 4th fixed head; Described 3rd gear train comprises the first gear, the second gear, the 3rd gear, the 4th gear, the 5th gear and the one-way wheel that are rotationally connected with described 4th fixed head;
Described first swivel plate is provided with toothed track, and described first gear engages with described toothed track, and can move in described toothed track along with the motion of described measuring mechanism;
Described second gear and described 4th gear all with described first gears meshing, described 3rd gear and described second gears meshing, described 5th gear is connected with described first reel;
Described one-way wheel comprises disk, claw, brambles wheel and pinion wheel; Described disk, described brambles wheel and described pinion wheel are coaxially arranged, and described claw is fixedly installed on described disk, and described pinion wheel and described brambles are taken turns and are fixedly installed; Described claw can promote described chaste tree ratcheting motion, or at the surface sliding that described brambles are taken turns;
Described one-way wheel is multiple, comprises the first one-way wheel and the second one-way wheel; The disk of described first one-way wheel is fixedly connected with described 4th gear with described 3rd gear respectively with the disk of described second one-way wheel, and coaxially arranges; The pinion wheel of described first one-way wheel and the pinion wheel of described second one-way wheel all with described 5th gears meshing.
9. Coriolis acceleration demonstrator according to claim 8, is characterized in that, described fixed bar is arranged with multistage elastic component, and the space between every two described elastic components is for placing described examined object.
10. Coriolis acceleration demonstrator according to claim 9, it is characterized in that, described support also comprises the 5th fixed head, described 5th fixed head is provided with for connecting described examined object first through hole, for the second through hole of fixing detail pen and the third through-hole for fixing tautness meter, and described 5th fixed head can move together along with described examined object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264636.7U CN204720047U (en) | 2015-04-28 | 2015-04-28 | Coriolis acceleration demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264636.7U CN204720047U (en) | 2015-04-28 | 2015-04-28 | Coriolis acceleration demonstrator |
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| Publication Number | Publication Date |
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| CN204720047U true CN204720047U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520264636.7U Withdrawn - After Issue CN204720047U (en) | 2015-04-28 | 2015-04-28 | Coriolis acceleration demonstrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751707A (en) * | 2015-04-28 | 2015-07-01 | 华北电力大学 | Coriolis acceleration demonstration instrument |
| TWI585719B (en) * | 2016-01-19 | 2017-06-01 | 台達電子工業股份有限公司 | Detecting apparatus with detachable detecting module |
| CN106979792A (en) * | 2016-01-19 | 2017-07-25 | 台达电子工业股份有限公司 | Has the sensing device of detachable perceptron module |
-
2015
- 2015-04-28 CN CN201520264636.7U patent/CN204720047U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751707A (en) * | 2015-04-28 | 2015-07-01 | 华北电力大学 | Coriolis acceleration demonstration instrument |
| CN104751707B (en) * | 2015-04-28 | 2017-05-24 | 华北电力大学 | Coriolis acceleration demonstration instrument |
| TWI585719B (en) * | 2016-01-19 | 2017-06-01 | 台達電子工業股份有限公司 | Detecting apparatus with detachable detecting module |
| CN106979792A (en) * | 2016-01-19 | 2017-07-25 | 台达电子工业股份有限公司 | Has the sensing device of detachable perceptron module |
| US10323964B2 (en) | 2016-01-19 | 2019-06-18 | Delta Electronics, Inc. | Motion detection device having detachable sensor |
| CN106979792B (en) * | 2016-01-19 | 2019-08-09 | 台达电子工业股份有限公司 | Has the sensing device of detachable perceptron module |
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Granted publication date: 20151021 Effective date of abandoning: 20170524 |