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 pur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

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

[0024] A magnetic writing board is arranged on the backboard inside the display box. The front of the display box is a transparent material that is convenient for viewing. The distance between the front of the display box and the magnetic writing board is in clearance fit with the diameter of the sphere.

[0025] The sphere is made of magnetic material.

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

[0027] Among them, the force application structure includes a steering gear 4 used as a power source. The steering gear selects MG995 or MG996R type steering gear to achieve rotation within a certain angle range.

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

Example Embodiment

[0042] Example 2

[0043] As a further improvement on the basis of embodiment 1, in order to prevent the sphere from falling off the pallet 102 during the lifting process of the pallet 102, a magnetic seat is embedded in the center of the pallet 102 with 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 box.

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

Example Embodiment

[0045] Example 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 second steering gear, and the second steering gear is fixed to the display box. At this time, changing the drive mode of the switch to an electronic control mode is conducive to achieving fully automatic control.

[0047] The physical test bench provided by the present invention can use a ball throwing device to throw a ball, and then use a related 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 experience and display effect is good, which can reduce the teacher's labor intensity and improve the learning effect. It is practical and worthy of promotion.

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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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