CN206400918U - An experimental device for mechanical engineering teaching - Google Patents

Abstract

The utility model relates to the field of mechanical engineering teaching equipment, in particular to an experimental device for mechanical engineering teaching. There are a pair of threaded holes on the side of the round cake, one threaded hole is connected to the lever, and the other threaded hole is connected to the telescopic rod. There are several hanging wire slots at equal intervals on the lever and the telescopic rod. The tray is hung on the On the wire hanging groove, the end of the lever away from the round cake is threadedly connected with a pendulum, and the front end of the rotating shaft is provided with an angle sensor. The utility model removes the pendulum, and uses the lever, telescopic rod, and weight to carry out the demonstration experiment of the lever principle; installs the pendulum, removes the telescopic rod, and uses the swing of the pendulum and the lever to demonstrate the swing experiment, and the experimental device is easy to use Convenient, greatly improving classroom interactivity and teaching quality.

Description

An experimental device for mechanical engineering teaching

Technical field:

The utility model relates to the field of mechanical engineering teaching equipment, in particular to an experimental device for mechanical engineering teaching.

Background technique:

"Principles of Mechanism" is the core basic course of mechanics. It is highly theoretical, involves a wide range of mathematical foundations, and has many abstract concepts, making it boring for students to learn. Therefore, there is an urgent need to visualize abstract theories through experiments in the teaching process, help students learn basic theories, basic knowledge and basic skills, and cultivate students' ability to analyze and solve problems.

At present, the experimental devices for mechanical engineering teaching have poor mobility and cannot mobilize the classroom atmosphere well, which will affect the quality of teaching.

Utility model content:

The technical problem to be solved by the utility model is to overcome the existing technical defects and provide an experimental device for mechanical engineering teaching. The pendulum is removed, and the lever principle is demonstrated by using the lever, telescopic rod and weight; 1. Remove the telescopic rod, and use the swing of the pendulum and the lever to demonstrate the swing experiment. The experimental device is simple and convenient to use, which greatly improves classroom interaction and teaching quality.

The technical problem to be solved by the utility model adopts the following technical solutions to realize:

An experimental device for mechanical engineering teaching, comprising a base, the base is provided with a background plate perpendicular to the base, the background plate is circular, the center of which is provided with a rotating shaft, and the front end of the rotating shaft is provided with a rotating shaft connected to the rotating shaft. There are a pair of threaded holes on the side of the round cake. One of the threaded holes is connected to the lever, and the other threaded hole is connected to the telescopic rod. There are a number of hanging slots at equal intervals on the lever and the telescopic rod. The tray is hung by the hanging wire. On the wire hanging groove, a weight is placed in the tray, a pendulum is threadedly connected to one end of the lever away from the round cake, an angle sensor is provided at the front end of the rotating shaft, and an angle scale line is arranged on the side of the round cake on the background plate.

The base is provided with a weight slot, a telescoping rod placement slot and a counterweight slot. The counterweight slot is used to add counterweight to prevent the base from being unstable.

A fluorescent material is coated on one side of the round cake on the background plate.

The base is provided with an LED lamp, and the LED lamp is electrically connected to the storage battery arranged in the base.

The beneficial effects of the utility model are as follows: remove the pendulum, use the lever, telescopic rod, and weights to demonstrate the principle of the lever; install the pendulum, remove the telescopic rod, and use the swing of the pendulum and the lever to demonstrate the swing experiment. The experimental device is simple and convenient to use, which greatly improves classroom interaction and teaching quality.

Description of drawings:

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

Fig. 2 is a schematic top view of the utility model.

detailed description:

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

As shown in Figures 1 and 2, a kind of experimental device for mechanical engineering teaching includes a base 1, a background plate 2 perpendicular to the base is provided on the base 1, the background plate 2 is circular, and a Rotating shaft 3, the front end of rotating shaft 3 is provided with the round cake piece 4 that is connected with rotating shaft 3 rotations, and round cake piece 4 side ends are provided with a pair of threaded holes, wherein one threaded hole connects lever 5, another threaded hole connects telescopic rod 6, lever 5 and telescopic rod 6 are equidistantly provided with some hanging wire slots 7, and tray 8 is hung on the described hanging wire slots 7 by hanging wires, and weight 9 is placed in tray 8, and lever 5 is far away from one end of round cake piece 4 A pendulum 10 is threadedly connected, an angle sensor 11 is provided at the front end of the rotating shaft 3 , and an angle scale line 12 is provided on the side of the round cake 4 on the background plate 2 .

The base is provided with a weight groove 13, a telescoping rod 14 placement groove and a counterweight groove 15. The counterweight slot is used to add counterweight to prevent the base from being unstable.

The background plate 2 is coated with fluorescent material on one side of the round cake.

The base 1 is provided with an LED lamp 16, and the LED lamp is electrically connected to the storage battery arranged in the base.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of mechanical engineering teaching experimental device, including base, the base are provided with the background board perpendicular to base, its It is characterised by, the background board is rounded, its center is provided with rotating shaft, rotating shaft leading section is provided with the circle being connected with axis of rotation Cake block, cake block side connects lever, another screwed hole connection expansion link provided with a pair of screwed holes, one of screwed hole, Equally spaced on lever and expansion link to be provided with some hanging wire grooves, pallet is hung on the hanging wire groove by hanging wire, is placed with pallet Counterweight, threaded one end of the lever away from cake block is connected with pendulum, and rotating shaft front end, which is provided with angular transducer, background board, is located at circle Cake block side is provided with angle index line, the background board and scribbles fluorescent material positioned at cake block side.

2. a kind of mechanical engineering teaching experimental device according to claim 1, it is characterised in that the base is provided with Counterweight groove, expansion link standing groove and counterweight tank.

3. a kind of mechanical engineering teaching experimental device according to claim 1, it is characterised in that the base is provided with LED, LED is electrically connected with the battery being arranged in base.