CN205881267U

CN205881267U - Centrifugal force teaching demonstration appearance

Info

Publication number: CN205881267U
Application number: CN201620336582.5U
Authority: CN
Inventors: 褚鸿鹄; 呼格吉乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-14
Filing date: 2016-04-14
Publication date: 2017-01-11
Anticipated expiration: 2026-04-14

Abstract

The utility model belongs to the technical field of the teaching instrument ware, concretely relates to centrifugal force teaching demonstration appearance. This demonstration appearance includes first pipe (1), second pipe (2), a demonstration rope (3), two demonstration balls (4), demonstration rope (3) is worn in first pipe (1), in second pipe (2), two tip of demonstration rope (3) do not expose in the tip of first pipe (1) and a tip of second pipe (2), it is fixed that another tip of first pipe (1) and another tip of second pipe (2) pass through locking bolt (5), first pipe (1) is fixed on output shaft (61) of motor (6), respectively there is a demonstration ball (4) at the both ends of demonstration rope (3). The utility model discloses can demonstrate the relation of centrifugal force and rotation radius and rotational speed, the experimental result is easy moreover observes and distinguishes quick, directly perceivedly.

Description

Centrifugal force demonstration instrument for teaching

Technical field

This utility model belongs to technical field of teaching instruments, is specifically related to a kind of centrifugal force demonstration instrument for teaching.

Background technology

The innovation and creation of Application No. 201320259203.3 disclose a kind of dehydrate demonstrator.This demonstrator has One circular rotating disk, is fixed with rotating shaft below rotating disk, be respectively fixed with and can be seen that inside above rotating disk at different radiuses Guard or transparent cup, be separately furnished with wet towel and liquid.After rotating disk rotates, the liquid on the towel farther out of the distance center of circle is thrown out of Speed, thus can show centrifugal force and the radius of gyration and the relation of rotating speed.The program is disadvantageous in that: demonstration Get up comparatively laborious, and the difference not being easily distinguishable between experimental result.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of centrifugal force demonstration instrument for teaching, its energy Demonstration centrifugal force and the radius of gyration and the relation of rotating speed easily, and experimental result is easily observed and distinguishes.

To achieve these goals, the technical solution of the utility model is as follows: a kind of centrifugal force demonstration instrument for teaching, including the One pipe, the second pipe, demonstration rope, two demonstration balls, demonstration rope is through in the first pipe, the second pipe, demonstration rope Two ends are exposed to an end of the first pipe and an end of the second pipe, another end of the first pipe respectively Being fixed by clamping screw with another end of the second pipe, the first pipe is fixed on the output shaft of motor, demonstration rope Two ends are respectively arranged with a demonstration ball.

As further technical scheme, the top of described first pipe offers groove, and the bottom of the second pipe is offered There is through hole, demonstrate the connection between the first pipe, the second pipe during rope is restricted by groove and through hole realization demonstration.

This utility model is reasonable in design, simple in construction, cheap, centrifugal force can be demonstrated quickly and intuitively and rotate half Footpath and the relation of rotating speed, and experimental result is easily observed and distinguishes.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure: 1. the first pipe；11. grooves；2. the second pipe；21. through holes；3. demonstration rope；4. demonstration ball；5. locking screw Bolt；6. motor；61. output shafts；7. base.

Detailed description of the invention

Embodiment 1

As it is shown in figure 1, a kind of centrifugal force demonstration instrument for teaching, demonstrate rope 3, two including first pipe the 1, second pipe 2, Individual demonstration ball 4, demonstration rope 3 is through in first pipe the 1, second pipe 2, and two ends of demonstration rope 3 are exposed to the first circle respectively One end of pipe 1 and an end of the second pipe 2, another end of the first pipe 1 and another end of the second pipe 2 Portion is fixed by clamping screw 5, and the first pipe 1 is fixed on the output shaft 61 of motor 6, and motor 6 is fixed on base 7.Demonstration The two ends of rope 3 are respectively arranged with a demonstration ball 4.The diameter of demonstration ball 4 is more than the caliber of first pipe the 1, second pipe 2.Two demonstrations The quality of ball 4 can be equal, it is also possible to, but the quality of two demonstration balls 4 cannot differ the biggest.

The top of the first pipe 1 offers groove 11, and the bottom of the second pipe 2 offers through hole 21, and demonstration rope 3 is by recessed Groove 11 and through hole 21 realize the connection in demonstration rope 3 between first pipe the 1, second pipe 2.The caliber of the second pipe 2 is less than The caliber of the first pipe 1, groove 11 also facilitates the folding between the second pipe 2 and the first pipe 1.

The demenstration method of this demonstrator is as follows:

(1) angle between first pipe the 1, second pipe 2 is adjusted by clamping screw 5, the biggest then two demonstrations of angle The difference of ball 4 initial rotation radius is the biggest.This programme is real by adjusting between first pipe the 1, second pipe 2 by the way of angle Difference between existing radius of turn.

(2) open motor 6, owing to the radius of turn of the first pipe 1 is big, the demonstration ball 4 of the first pipe 1 end be subject to from Mental and physical efforts are relatively big, and this demonstration ball 4 can move the most outward.Demonstration rope 3 is a complete continuous print rope, the second pipe 2 end Demonstration ball 4 can be moved, until propping up the end of the second pipe 2 by end toward the second pipe 2 in tow.Experimental result is easier to observe Arrive.

(3) under same rotating speed, the angle between first pipe the 1, second pipe 2, two demonstration ball 4 initial rotations are adjusted The difference of radius is the biggest, then the demonstration ball 4 of the second pipe 2 end props up the end of the second pipe 2 the soonest.Under different rotating speeds, Rotating speed is the fastest, and the demonstration ball 4 of the second pipe 2 end props up the end of the second pipe 2 the soonest.

Claims

1. a centrifugal force demonstration instrument for teaching, it is characterised in that: include the first pipe (1), the second pipe (2), a demonstration rope (3), two demonstrations ball (4), demonstration rope (3) is through the first pipe (1), in the second pipe (2), two ends of demonstration rope (3) It is exposed to an end of the first pipe (1) and an end of the second pipe (2), another end of the first pipe (1) respectively Another end of portion and the second pipe (2) is fixed by clamping screw (5), and the first pipe (1) is fixed on the output of motor (6) On axle (61), the two ends of demonstration rope (3) are respectively arranged with demonstration ball (4).

Centrifugal force demonstration instrument for teaching the most according to claim 1, it is characterised in that: the top of described first pipe (1) is opened Being provided with groove (11), the bottom of the second pipe (2) offers through hole (21), and demonstration rope (3) is by groove (11) and through hole (21) Realize the connection between the first pipe (1), the second pipe (2) in demonstration rope (3).