CN107464478A - One kind teaching Coriolis acceleration demonstrator - Google Patents

One kind teaching Coriolis acceleration demonstrator Download PDF

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Publication number
CN107464478A
CN107464478A CN201710778602.3A CN201710778602A CN107464478A CN 107464478 A CN107464478 A CN 107464478A CN 201710778602 A CN201710778602 A CN 201710778602A CN 107464478 A CN107464478 A CN 107464478A
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CN
China
Prior art keywords
rotating disk
gear
teaching
handle
synchronizing wheel
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Granted
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CN201710778602.3A
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Chinese (zh)
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CN107464478B (en
Inventor
刘天丁
吴恒
徐鹏
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Hunan Weichu Science & Education Training Room Equipment Co Ltd
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Hunan Weichu Science & Education Training Room Equipment Co Ltd
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Publication of CN107464478A publication Critical patent/CN107464478A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Toys (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

The invention discloses one kind teaching Coriolis acceleration demonstrator,Including chassis and presentation component,Presentation component is embedded in chassis upper surface,The presentation component includes traffic cycle and the synchronous wheel assembly on traffic cycle,The synchronous wheel assembly includes synchronizing wheel A,Synchronizing wheel B and the transmission belt on synchronizing wheel A and synchronizing wheel B that is connected,Rotating disk lower end is provided with the first motor of control traffic cycle rotation,Synchronizing wheel A or synchronizing wheel B lower ends are provided with the second motor of its rotation of control,Traffic cycle is marked with graduation mark,The graduation mark is located in the position of two straight flange corresponding regions of transmission belt,Traffic cycle relative scale line position is provided with indicator lamp,By graduation mark is set and indicator lamp make its in teaching process it is simpler directly perceived and clearly observation transmission belt is outwardly or inwardly tensioned situation to demonstrate the size of coriolis force,Overall machinery facilitates maintenance and installation,It is safe.

Description

One kind teaching Coriolis acceleration demonstrator
Technical field
The present invention relates to teaching demonstration equipment field, more particularly to a kind of teaching Coriolis acceleration demonstrator.
Background technology
Coriolis acceleration, it is to be proposed by Coriolis (G.G.Coriolis) when studying the hydraulic turbine and rotating within 1832 , thus Coriolis acceleration of gaining the name, abbreviation Coriolis acceleration.Coriolis acceleration is that the rotation of ginseng system is relative with dynamic point dynamic Ginseng is that motion intercouples caused acceleration, and popular says, is exactly that the earth is the non-inertial reference frame rotated, Coriolis acceleration When being exactly the research object in the earth as caused by object relative to the motion of the earth.The direction of Coriolis acceleration is perpendicular to angle speed The size of degree vector relative velocity vector, size and relative velocity vector is directly proportional;In the vehicle traveling direction of southern hemisphere and northern hemisphere There is application in problem.Coriolis acceleration can only be derived by way of theoretical calculation in teaching at present, without particularly preferred production Product can intuitively demonstrate Coriolis acceleration.
The content of the invention
In view of the deficienciess of the prior art, clearly imparted knowledge to students Coriolis it is an object of the invention to provide a kind of demonstrating visual Acceleration demonstrator, simple in construction, safe operation are easy to maintenance.
To achieve the above object, the invention provides following technical scheme:One kind teaching Coriolis acceleration demonstrator, including Chassis and presentation component, the presentation component are embedded in chassis upper surface, and the presentation component includes rotating disk and on rotating disk Synchronous wheel assembly, the synchronous wheel assembly include synchronizing wheel A, synchronizing wheel B and drive connection on synchronizing wheel A and synchronizing wheel B Transmission belt, rotating disk lower end be provided with control turntable rotation the first motor, synchronizing wheel A or synchronizing wheel the B lower end is provided with The second motor for controlling it to rotate, the rotating disk are marked with graduation mark, and the graduation mark is located at two straight flange corresponding regions of transmission belt In position, the rotating disk relative scale line position is provided with indicator lamp.As a further improvement on the present invention, the rotating disk is symmetrical Handle is installed, facilitates rotating disk to remove and install.
As a further improvement on the present invention, the chassis upper end is recessed downwards circular concave station, turns on the rotating disk It is dynamic to be connected on circular concave station, first annular groove is provided with the circular concave station, the rotating disk corresponds to first annular groove and set There is the second annular groove of same diameter, ball is provided between the first annular groove and the second annular groove.
As a further improvement on the present invention, the rotating disk is symmetrically installed with handle, and the rotating disk is provided with accommodating groove, institute Handle is stated to be rotatably connected in accommodating groove.
As a further improvement on the present invention, the handle lower end is extended with downshift lever, and the accommodating groove bottom is provided with confession The groove that the downshift lever rotated as handle rotates stretches out, the downshift lever lower end are provided with friction plate, and the friction plate is in handle Hand is rotated when relative accommodating groove erects and mutually contradicted with circular concave station.
As a further improvement on the present invention, the handle both ends are extended with connecting shaft, and the accommodating groove is provided with mounting hole, The connecting shaft is rotatably connected in mounting hole, and the rotating disk bottom surface is provided with the main shaft of transmission, and the main shaft lower end sets the first tooth Wheel, the output shaft upper end of first motor are provided with second gear, and the first gear is intermeshed with second gear, and this One gear is highly set with second gear in same level, and the rotating disk bottom surface is provided with chute, and the main shaft is slidably connected at On chute, the chute is the bar-shaped trough on the axial connecting line direction of the first motor and main shaft, and the connecting shaft is provided with band The adjusting part of the dynamic close or remote second gear of first gear.
As a further improvement on the present invention, the adjusting part includes cam, elastic component, the 3rd gear and the 4th tooth Wheel, the elastic component are arranged on chute and are fixedly connected on close to the first motor side, the elastic component one end in the side wall of chute, the bullet The other end of spring part is fixedly connected with main shaft, and the cam is arranged in chute and mutually contradicted with main shaft, and the cam revolving center prolongs Stretching has first rotating shaft, and the 3rd gear is fixedly mounted on first rotating shaft and fixes peace backwards to one end of cam, the 4th gear It is intermeshed mounted in connecting shaft close to the 3rd gear one end, the 4th gear and the 3rd gear.
As a further improvement on the present invention, the handle includes barre, spring and fixture block, and both sides are opened above the barre There is blind hole, the fixture block side is extended with mounting rod, mounting rod socket spring, and the spring retainer is described blind in blind hole Hole is extended with telescopic chute, the mounting rod by spring can elastic telescopic on telescopic chute, the accommodating groove is folded in handle and put The position of fixture block will be provided with neck when lower, the fixture block is connected in neck.
As a further improvement on the present invention, the graduation mark be arranged in parallel with transmission belt straight flange, and the graduation mark is the line of ink marker Or convex line or concave.
As a further improvement on the present invention, the graduation mark includes left-hand scale line and right side scale line, and the left side is carved The quantity for spending line and right side scale line is 8-10 bars, and two neighboring graduation mark spacing is 0.5cm in the left-hand scale line, institute It is 0.5cm to state two neighboring graduation mark spacing in right side scale line so that the slight change energy that transmission belt is outwardly or inwardly tensioned It is enough more intuitively to observe, and can simply demonstrate the size variation of caused Coriolis acceleration under different rotating speeds.
As a further improvement on the present invention, the indicator lamp is arranged on the reverse side of rotating disk, is opened on every graduation mark There is 2-5 loophole, the indicator lamp is striplight, and the quantity of the striplight is 2-8 bars, and striplight passes through on flat board Rotating disk reverse side is removably fixed in, facilitates indicator lamp integral installation to dismantle and easily repairs, the rotating disk relative scale line position It is provided with loophole so that rotating disk front is more succinct, the more convenient observation of visitor.
Beneficial effects of the present invention, by being arranged to plane demonstrator, the present invention is simple in construction, safe for operation, in rotating disk Embedded in chassis upper surface so that when rotating disk operates, visitor can have a safe distance with rotating disk, protect demonstrator and visit The safety of person, while the handle that can be received is provided with rotating disk so that demonstrator repair demolition is convenient, ensures demonstrator fortune in addition Row is safe, and the graduation mark set on rotating disk enables the tensioning of the more careful observation transmission belt of visitor to change, by carving Degree line is provided with indicator lamp, and the change to transmission belt is played with reference to contrast indicative function so that visitor more intuitivism apprehension section The generation of family name's acceleration.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the sectional view in A-A ' directions in Fig. 1 of the invention;
Fig. 3 is the sectional view in B-B ' directions in Fig. 1 of the invention;
Fig. 4 is the sectional view in rotating disk C-C ' directions in Fig. 1;
Fig. 5 is the partial enlarged drawing of the present invention;
Fig. 6 is the sectional view of handle of the present invention.
1st, chassis;2nd, rotating disk;3rd, synchronizing wheel A;4th, synchronizing wheel B;5th, transmission belt;6th, graduation mark;7th, handle;8th, accommodating groove; 9th, the first motor;10th, the second motor;11st, indicator lamp;12nd, loophole;13rd, barre;14th, fixture block;15th, connecting shaft;16th, neck; 17th, spring;18th, mounting rod;19th, telescopic chute;20th, circular concave station;21st, first annular groove;22nd, the second annular groove;23rd, ball; 24th, downshift lever;25th, groove;26th, friction plate;27th, mounting hole;28th, main shaft;29th, first gear;30th, second gear;31st, it is sliding Groove;32nd, cam;33rd, elastic component;34th, the 3rd gear;35th, the 4th gear;36th, first rotating shaft;37th, blind hole.
Embodiment
The present invention is described in further detail below in conjunction with the embodiment given by accompanying drawing.
Shown in reference picture 1-6, a kind of teaching Coriolis acceleration demonstrator of the present embodiment, including chassis 1 and presentation component, The presentation component is embedded in the upper surface of chassis 1, and presentation component and the upper surface of chassis 1 are located in same level, demonstration group Part can correspond to the relative rotary motion of chassis 1, and visitor can have a safe distance with presentation component, prevent visitor's false touch Cause to damage, the presentation component includes rotating disk 2 and the synchronous wheel assembly on rotating disk 2, and the synchronous wheel assembly includes synchronous The transmission belt 5 of A3, synchronizing wheel B4 and drive connection on synchronizing wheel A3 and synchronizing wheel B4 is taken turns, the lower end of rotating disk 2 is provided with The first motor 9 for controlling rotating disk 2 to rotate, synchronizing wheel A3 or synchronizing wheel the B4 lower end are provided with the second motor of its rotation of control 10, the first motor 9 and the second motor 10 drive rotating disk 2 and synchronous wheel assembly equidirectional or opposite direction to operate simultaneously, turn Disk 2 is illustrated as earth rotation, and synchronous wheel assembly is illustrated as mobile object on earth, due to rotating disk 2 and synchronous wheel assembly it Between relative velocity vector change, tensioning change can occur as synchronizing wheel A3 and synchronizing wheel B4 rotate the transmission belt 5 that drives, when When rotating disk 2 is identical with synchronous wheel assembly rotation direction, as the speed of synchronous wheel assembly becomes big, 5 outward width of transmission belt Spend increasing, big with the speed change of synchronous wheel assembly when rotating disk 2 and opposite synchronous wheel assembly rotation direction, transmission belt 5 The amplitude inwardly tightened up is increasing, and the rotating disk 2 is marked with graduation mark 6, and the graduation mark 6 is located at 5 two straight flanges pair of transmission belt Answer in regional location, transmission belt 5 is more intuitively observed by the way that transmission belt 5 and the position versus visitor of graduation mark 6 are more enough Tensioning state changes, and the position of 2 relative scale line of rotating disk 6 is provided with indicator lamp 11, and the change to transmission belt 5 is played with reference to right Compare indicative function so that the generation of visitor's more intuitivism apprehension Coriolis acceleration.
As a kind of improved embodiment, the upper end of chassis 1 is recessed downwards circular concave station 20, described turn It is rotatably connected on disk 2 on circular concave station 20, first annular groove 21, the correspondence of rotating disk 2 is provided with the circular concave station 20 First annular groove 21 is provided with the second annular groove 22 of same diameter, is set between the first annular annular groove 22 of groove 21 and second It is equipped with ball 23.
Circular concave station 20 is played a supporting role to rotating disk 2, while ball 23 is set between circular concave station 20 and rotating disk 2, with Reduce frictional force when rotating disk 2 rotates, rotate required driving force to reduce rotating disk 2 so that smaller power can be selected First motor 9, while by the way that ball 23 is spacing in the first annular annular groove 22 of groove 21 and second, when preventing that rotating disk 2 from rotating Deflect.
As a kind of improved embodiment, the rotating disk 2 is symmetrically installed with handle 7, and the rotating disk 2 is provided with receipts Receive groove 8, the handle 7 is rotatably connected in accommodating groove 8, on the one hand there can be individual stress in the case of the detachable maintaining of rotating disk 2 Point, facilitate rotating disk 2 to remove and install, on the other hand, after decelerating through motor stopping, being reduced to a certain extent with the rotating speed of rotating disk 2 Afterwards, handle 7 can provide a stress point, artificially carry out slowing down to rotating disk 2.
As a kind of improved embodiment, the lower end of handle 7 is extended with downshift lever 24, the bottom of accommodating groove 8 End is provided with the groove 25 stretched out for the downshift lever 24 for rotating and rotating with handle 7, and the lower end of downshift lever 24 is provided with friction Piece 26, the friction plate 26 are rotated in handle 7 and mutually contradicted with circular concave station 20 when relative accommodating groove 8 erects.
When swing handle 7 erects handle 7, the relative downshift lever 24 for deviating from hand grip portion of handle 7 is arranged on, in groove 25 Interior rotation, downshift lever 24 turns to be in contact with the circular upper surface of concave station 20, be arranged on the friction plate 26 of the lower end of downshift lever 24 with The circular phase mutual friction of concave station 20, the material of its friction plate 26 is preferably composite friction material, to reach good slowing effect.
As a kind of improved embodiment, the both ends of handle 7 are extended with connecting shaft 15, and the accommodating groove 8 is opened There is mounting hole 27, the connecting shaft 15 is rotatably connected in mounting hole 27, and the bottom surface of rotating disk 2 is provided with the main shaft 28 of transmission, should The lower end of main shaft 28 sets first gear 29, and the output shaft upper end of first motor 9 is provided with second gear 30, first tooth Wheel 29 is intermeshed with second gear 30, and the first gear 29 is highly set with second gear 30 in same level, the rotating disk 2 Bottom surface is provided with chute 31, and the main shaft 28 is slidably connected on chute 31, and the chute 31 is in the first motor 9 and main shaft 28 Axial connecting line direction on bar-shaped trough, the connecting shaft 15 be provided with drive first gear 29 close to or away from second gear 30 adjusting part.
Mutual cooperation transmission is engaged by gear between first motor 9 and the transmission main shaft 28 of rotating disk 2, the first motor 9 is defeated Shaft drives main shaft 28 to rotate, and main shaft 28 drives rotating disk 2 to rotate, and main shaft 28 is arranged to be slidably connected with rotating disk 2, it is preferred that sliding Groove 31 is bar-shaped trough, and the connecting portion of its main shaft 28 and chute 31 is in matched square, and by setting adjusting part to control Mesh degree between second gear 30 and first gear 29, its adjusting part are arranged in connecting shaft 15, and handle 7 passes through connection Axle 15 is rotatably connected on groove, is driven adjusting part control main shaft 28 to be slided in chute 31 in swing handle 7, is passed through control Whether handle 7 processed engages to adjust between first gear 29 and second gear 30 so that after the first motor 9 stops slowing down, When needing to accelerate rotating disk 2 manually to stop, the main shaft 28 being driven with the first motor 9 is laterally away from the first motor 9 released and engage pass System, the rotational motion of the first motor 9 are no longer transmitted to main shaft 28, further speed up the moderating process of rotating disk 2.
As a kind of improved embodiment, the adjusting part includes cam 32, elastic component 33, the 3rd gear 34 With the 4th gear 35, the elastic component 33 is arranged on chute 31 and is fixedly connected on close to the end of the first motor 9, the one end of elastic component 33 In the side wall of chute 31, the other end of 17, the spring is fixedly connected with main shaft 28, and the cam 32 is arranged in chute 31 and master Axle 28 mutually contradicts, and the center of rotation of cam 32 is extended with first rotating shaft 36, and the 3rd gear 34 is fixedly mounted on first turn For axle 36 backwards to one end of cam 32, the 4th gear 35 is fixedly mounted on connecting shaft 15 close to the one end of the 3rd gear 34, and this Four gears 35 are intermeshed with the 3rd gear 34.
Connecting shaft 15 is fixedly connected with handle 7, and in swing handle 7, drive connection axle 15 rotates, and is arranged on connecting shaft 15 3rd gear 34 of one end engages band moving cam 32 with the 4th gear 35 and rotated in the chute 31, by cam 32 away from 32 turns of cam The one end at dynamic center deviates from main shaft 28 by rotating, and close to one end of the center of rotation of cam 32 and turns to close to main shaft 28, main A removable space is formed between axle 28 and cam 32, elastic component 33 has the deformation to the direction of cam 32 to main shaft 28 Pressure, promote main shaft 28 to the side slip of cam 32 away from the first motor 9 so that the motor 9 of first gear 29 and first of main shaft 28 Second gear 30 between release meshing relation, its adjusting part advantages of simple, mating parts are less, can simply by turn Handle 7 is moved to adjust the matching relationship of the motor 9 of main shaft 28 and first so that rotating disk 2 slows down faster.
When in use, handle 7 is accommodated in accommodating groove 8 demonstrator towards the central side of rotating disk 2, and cam 32 is away from center of rotation End offseted with main shaft 28, its cam 32 close to the upper end of chute 31 set, the lower end of chute 31 be cam 32 rotation space, main shaft 28 First gear 29 and the second gear 30 of the first motor 9 be intermeshed, the first motor 9 drive main shaft 28 rotated with rotating disk 2, Demonstrator is disabled, it is necessary to when accelerating the deceleration of rotating disk 2, and handle 7 is rotated away from the central side of rotating disk 2, preferably turned to handle 7 It to be kept upright state with rotating disk 2, the connecting shaft 15 on handle 7 rotates, and its 3rd gear 34 drives the 4th gear 35 to rotate backward, Cam 32 rotates away from the lower end of center of rotation end chute 31, and main shaft 28 moves to the side of cam 32, and first gear 29 is away from the second tooth Wheel 30, release meshing relation.
As a kind of improved embodiment, the handle 7 includes barre 13, spring 17 and fixture block 14, described The top both sides of bar 13 are provided with blind hole, and the fixture block 14 is circular fixture block, and the side of fixture block 14 is extended with mounting rod 18, the mounting rod 18 socket springs 17, the spring 17 is spacing in blind hole 37, and the blind hole 37 is extended with telescopic chute 19, and the mounting rod 18 is logical Cross spring 17 can elastic telescopic on telescopic chute 19, when spring 17 is squeezed deformation, mounting rod 18 can be in telescopic chute 19 Inside slide back and forth, accommodating groove 8 is provided with neck 16, the clamping of fixture block 14 in 7 rotated down of handle relative to the position of fixture block 14 In in neck 16, handle 7 can be relatively fixed in accommodating groove 8 so that when demonstrator works demonstration rotation, handle 7 is built-in In in accommodating groove 8, it is not easy to rock, and rotating disk 2 rotate when centripetal force will not swing handle 7, prevent handle 7 erect shape As the high-speed rotation of rotating disk 2 causes student's false touch to be damaged during state.
As a kind of improved embodiment, the graduation mark 6 be arranged in parallel with the straight flange of transmission belt 5, the graduation mark 6 For the line of ink marker or convex line or concave.
As a kind of improved embodiment, the graduation mark 6 includes left-hand scale line and right side scale line, the left side The quantity of side graduation mark and right side scale line is 8-10 bars, and the two neighboring spacing of graduation mark 6 is in the left-hand scale line 0.5cm, the two neighboring spacing of graduation mark 6 is 0.5cm in the right side scale line so that what transmission belt 5 was outwardly or inwardly tensioned Slight change can be observed more intuitively, and the size that can simply demonstrate caused Coriolis acceleration under different rotating speeds becomes Change.
As a kind of improved embodiment, the indicator lamp 11 is arranged on the reverse side of rotating disk 2, every scale It is provided with 2-5 loophole 12 on line 6, the indicator lamp 11 is striplight, and the quantity of the striplight is 2-8 bars, the striplight By being removably fixed in the reverse side of rotating disk 2 on flat board, facilitate the integral installation of indicator lamp 11 to dismantle and easily repair, institute It is LED, more durable energy saving to state indicator lamp 11, and the position of 2 relative scale line of rotating disk 6 is provided with loophole 12 so that rotating disk 2 is just Face is more succinct, the more convenient observation of visitor.
In summary, the present invention is simple in construction, and safe for operation, the graduation mark set on rotating disk enables visitor more The tensioning change of careful observation transmission belt, is provided with indicator lamp, the change to transmission belt rises by rotating disk relative scale line position To with reference to contrast indicative function so that the generation of visitor's more intuitivism apprehension Coriolis acceleration.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. one kind teaching Coriolis acceleration demonstrator, it is characterised in that:Including chassis (1) and presentation component, the presentation component Chassis (1) upper surface is embedded in, the presentation component includes rotating disk (2) and the synchronous wheel assembly on rotating disk (2), the synchronization Wheel assembly includes synchronizing wheel A (3), synchronizing wheel B (4) and the transmission belt on synchronizing wheel A (3) and synchronizing wheel B (4) that is connected (5), rotating disk (2) lower end is provided with the first motor (9) of control rotating disk (2) rotation, the synchronizing wheel A (3) or synchronizing wheel B (4) Lower end is provided with the second motor (10) of its rotation of control, and the rotating disk (2) is marked with graduation mark (6), and the graduation mark (6) is located at In the position of (5) two straight flange corresponding regions of transmission belt, rotating disk (2) relative scale line (6) position is provided with indicator lamp (11).
A kind of 2. teaching Coriolis acceleration demonstrator according to claim 1, it is characterised in that:Chassis (1) upper end There is circular concave station (20) towards lower recess, be rotatably connected on the rotating disk (2) on circular concave station (20), the circular concave station (20) first annular groove (21) is provided with, the corresponding first annular groove (21) of the rotating disk (2) is provided with the second of same diameter Annular groove (22), ball (23) is provided between the first annular groove (21) and the second annular groove (22).
A kind of 3. teaching Coriolis acceleration demonstrator according to claim 2, it is characterised in that:The rotating disk (2) is symmetrical Handle (7) is installed, the rotating disk (2) is provided with accommodating groove (8), and the handle (7) is rotatably connected in accommodating groove (8).
A kind of 4. teaching Coriolis acceleration demonstrator according to claim 3, it is characterised in that:Handle (7) lower end Downshift lever (24) is extended with, accommodating groove (8) bottom is provided with to be stretched out for the downshift lever (24) for rotating and rotating with handle (7) Groove (25), downshift lever (24) lower end is provided with friction plate (26), and the friction plate (26) rotates relative receive in handle (7) Mutually contradicted with circular concave station (20) when groove (8) of receiving erects.
A kind of 5. teaching Coriolis acceleration demonstrator according to claim 4, it is characterised in that:Handle (7) both ends Connecting shaft (15) is extended with, the accommodating groove (8) is provided with mounting hole (27), and the connecting shaft (15) is rotatably connected on mounting hole (27) in, rotating disk (2) bottom surface is provided with the main shaft (28) of transmission, and main shaft (28) lower end sets first gear (29), described The output shaft upper end of first motor (9) is provided with second gear (30), and the first gear (29) is mutual with second gear (30) Engagement, the first gear (29) are highly set with second gear (30) in same level, and rotating disk (2) bottom surface is provided with chute (31), the main shaft (28) is slidably connected on chute (31), and the chute (31) is in the first motor (9) and main shaft (28) Bar-shaped trough on axial connecting line direction, the connecting shaft (15), which is provided with, drives first gear (29) close or away from the second tooth Take turns the adjusting part of (30).
A kind of 6. teaching Coriolis acceleration demonstrator according to claim 5, it is characterised in that:The adjusting part includes Cam (32), elastic component (33), the 3rd gear (34) and the 4th gear (35), the elastic component (33) are arranged on chute (31) and leaned on Nearly first motor (9) end, elastic component (33) one end are fixedly connected in the side wall of chute (31), spring (17) part it is another End is fixedly connected with main shaft (28), and the cam (32) is arranged in chute (31) mutually to be contradicted with main shaft (28), the cam (32) Center of rotation is extended with first rotating shaft (36), and the 3rd gear (34) is fixedly mounted on first rotating shaft (36) backwards to cam (32) One end, the 4th gear (35) is fixedly mounted on connecting shaft (15) close to the 3rd gear (34) one end, the 4th gear (35) it is intermeshed with the 3rd gear (34).
A kind of 7. teaching Coriolis acceleration demonstrator according to claim 6, it is characterised in that:The handle (7) includes Barre (13), spring (17) and fixture block (14), barre (13) top both sides are provided with blind hole (37), fixture block (14) side Mounting rod (18) is extended with, the mounting rod (18) socket spring (17), the spring (17) is spacing in blind hole (37), described blind Hole (37) is extended with telescopic chute (19), the mounting rod (18) by spring (17) can elastic telescopic on telescopic chute (19), institute State accommodating groove (8) and the position of fixture block (14) is provided with neck (16), the fixture block (14) when handle (7) is folded and put down It is connected in neck (16).
A kind of 8. teaching Coriolis acceleration demonstrator as claimed in any of claims 1 to 7, it is characterised in that:Institute State graduation mark (6) to be arranged in parallel with transmission belt (5) straight flange, the graduation mark (6) is the line of ink marker or convex line or concave.
A kind of 9. teaching Coriolis acceleration demonstrator according to claim 8, it is characterised in that:Graduation mark (6) bag Left-hand scale line and right side scale line are included, the quantity of the left-hand scale line and right side scale line is 8-10 bars, and the left side is carved Two neighboring graduation mark spacing is 0.5cm in degree line, and two neighboring graduation mark (6) spacing is 0.5cm in the right side scale line.
A kind of 10. teaching Coriolis acceleration demonstrator according to claim 1 or 9, it is characterised in that:The indicator lamp (11) reverse side of rotating disk (2) is arranged on, rotating disk (2) relative scale line (6) position is provided with loophole (12), every scale 2-5 loophole (12) is provided with line (6), the indicator lamp (11) is striplight, and the quantity of the striplight is 2-8 bars.
CN201710778602.3A 2017-08-31 2017-08-31 A kind of teaching Coriolis acceleration demonstrator Active CN107464478B (en)

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CN109545043A (en) * 2018-12-28 2019-03-29 艾祎璠 A kind of science popularization device for demonstrating rotary inertia
CN110148345A (en) * 2018-05-25 2019-08-20 深圳信息职业技术学院 A kind of three-dimensional logistics business teaching sand table being easily installed
CN110980243A (en) * 2019-11-18 2020-04-10 南京大树智能科技股份有限公司 Go up unloading integral type cigarette strip two-dimensional code detection device
CN113751746A (en) * 2020-06-05 2021-12-07 临沂盖氏机械有限公司 Radial drill convenient to fixed drilling material

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