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Physical test bench

A physical test and display box technology, applied in the field of physical test benches, can solve the problems of short residence time, difficult to capture features, and unintuitive display, and achieve the effect of reducing labor intensity, good display effect, and strong practicability.

Inactive Publication Date: 2020-07-17
中国人民解放军空军勤务学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Physics class is a basic teaching subject in our country. In the traditional teaching method, the teacher always explains the majority, and the experiment is supplemented to help students understand. Today, with the popularization of modeling teaching, the verification of the parabolic nature in physics teaching is still purely manual. In the method of operation plus calculation and analysis, because the residence time after throwing is short, it is difficult for human eyes to capture the formed curve, which makes the display not intuitive enough, and it is also difficult to capture the characteristics of certain points, so as to verify the properties

Method used

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Effect test

Embodiment 1

[0023] Such as figure 1 and figure 2 As shown, a physical test bench provided by the present invention includes a sphere, a display case, a ball throwing device and a screen wiping structure 2 .

[0024] The backboard inside the display case is provided with a magnetic writing board, and the front of the display case is a transparent material for easy viewing, and the distance between the front of the display case and the magnetic writing board matches the diameter gap of the sphere.

[0025] The sphere is made of magnetic material.

[0026] The ball throwing device includes a lifting device 1 and a force applying structure arranged on the side of the lifting device 1 .

[0027] Wherein, the force application structure includes a steering gear-4 used as a power source, and the steering gear is MG995 or MG996R steering gear to realize rotation within a certain angle range.

[0028] The steering gear-4 is fixed to the side wall of the display box through the connection struc...

Embodiment 2

[0043] As a further improvement on the basis of Embodiment 1, in order to prevent the ball from falling from the pallet 102 during the lifting process of the pallet 102, a magnetic force seat is embedded in the center of the pallet 102 in a concave arc structure, A switch for controlling the on-off of the magnetic force is connected to the magnetic base, and the switch is located on the display case.

[0044] In use, the present invention can use the switch to rotate the permanent magnet in the magnetic base to an intermediate position. When the magnetic force lines respectively form closed circuits in the two pieces of cast iron, there is no magnetic generation between the magnetic base and the sphere. At this time, the sphere can be removed. After the switch rotates the permanent magnet in the magnetic base by 90 degrees, the NS poles face the two pieces of cast iron respectively. At this time, from the N pole to the cast iron to the sphere to the other piece of cast iron to ...

Embodiment 3

[0046] As a further improvement on the basis of Embodiment 2, in order to facilitate automatic control and reduce the labor intensity of the teacher, the switch is fixed to the output shaft of the steering gear 2, and the steering gear 2 is fixed to the display box. At this time, changing the drive mode of the switch to an electric control mode is beneficial to realize fully automatic control.

[0047] The physical test bench provided by the present invention can use the ball throwing device to realize throwing the ball, and then use the relevant measuring device to measure and capture relevant data, and analyze the trajectory formed by the sphere, so as to facilitate students' understanding and obtain intuitive vision The feeling and display effect are good, which can reduce the labor intensity of the teacher, improve the learning effect, have strong practicability, and are worthy of popularization.

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Abstract

The invention relates to a physical test bench, which comprises a ball body, a display box, a ball throwing device and a screen wiping structure. The sphere is made of a magnetic material; a magneticwriting board is arranged on a back board in the display box, and the front surface of the display box is made of a transparent material convenient for watching; the ball throwing device comprises a lifting device and a force application structure arranged on the side edge of the lifting device. The force application structure comprises a first steering engine, the first steering engine is fixed to the side wall of the display box through a connecting structure, an output shaft of the first steering engine is fixed to the middle section of a cylinder body of a first hydraulic cylinder, a piston rod of the first hydraulic cylinder extends into the display box, and a first plate body used for hitting a ball is fixed to the tail end of the piston rod of the first hydraulic cylinder; the lifting device comprises lifting equipment, and a supporting plate used for containing the ball body is fixed to the lifting end of the lifting equipment. The screen wiping structure comprises a synchronous structure arranged in the display box and a screen wiper arranged on the synchronous structure. The display effect of the physical test bench is good, the labor intensity of teachers can be reduced,and the learning effect is improved.

Description

technical field [0001] The invention belongs to the technical field of physics teaching experiment equipment, in particular to a physics test bench. Background technique [0002] Physics class is a basic teaching subject in our country. In the traditional teaching method, the teacher always explains the majority, and the experiment is supplemented to help students understand. Today, with the popularization of modeling teaching, the verification of the parabolic nature in physics teaching is still purely manual. In the method of operation plus calculation and analysis, because of the short residence time after throwing, it is difficult for human eyes to capture the formed curve, which makes the display not intuitive enough, and it is also difficult to capture the characteristics of certain points for property verification. Contents of the invention [0003] In view of this, the present invention provides a physical test bench in order to solve the above technical problems. ...

Claims

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Application Information

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IPC IPC(8): G09B23/10G09B5/02
CPCG09B5/02G09B23/10
Inventor 胡雪明王力李青任永强王学谦刘志坚荣鹏辉
Owner 中国人民解放军空军勤务学院
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