"Gear" PPT

Description

"Gear" PPT

Part 1: What is a gear?

Gears are mechanical parts with teeth that can mesh with each other. The application of gears in transmission has appeared very early. At the end of the 19th century, the principle of the generated gear cutting method and the special machine tool tools that used this principle to cut gears appeared one after another. With the development of production, the smoothness of gear operation received attention.

What is the function of gears?

Gears can transmit force, change the direction of movement, and change the speed of movement.

Part 2: Types of gears

Introduction to spur gears

(1) A linear cylindrical gear whose tooth direction is parallel to the axis.

(2) Can be used for watch minute hand and second hand control, and correction belt. It is the most common gear in life.

Introduction to bevel gears

A bevel gear whose tooth ribs are aligned with the straight line of the pitch cone.

Because it looks like an umbrella, it can be used for folding umbrellas and other items that can be folded or opened. It is a commonly used gear in daily life.

Introduction to face gears

A disc-shaped face gear that meshes with a spur gear or helical gear.

It can bring great power to objects through high-speed rotation and small friction. For use with electric shavers. It is the only gear in life that can generate power.

Introduction to spiral gears

Helical gears are composed of two helical gears meshing together.

It can be used for gears that do not require a lot of force and require a certain amount of friction. Such as: friction fixed device, etc. It is an essential military gear in life.

Part Three: Application of Gears

What simple machines are used in entertainment facilities in playgrounds?

1. A seesaw is a lever.

2. Roller coasters and slides contain the incline principle.

3. There are gears etc. in the bumper car.

Keywords: Qingdao version fifth grade science PPT courseware free download, gear PPT download, .PPT format;

For more information about the "Gear" PPT courseware, please click the Gear PPT tab.

Mechanical gear sound effects:

Mechanical gear PPT background sound effect. ..

Gear running sound effects:

Gear rotation PPT background sound effect. ..

Mechanical gear background PPT template with a sense of technology:

This is a set of mechanical gear background PPT templates with a sense of technology, with a total of 24 sheets; the PPT template cover uses a blue mechanical gear set PPT background image, and fills in the mechanical industry work summary report PPT title text on the left. The interface has a sense of technology and matches the mechanical PPT theme. ..

File Info

Update Time: 2024-07-28

This template belongs to science courseware Qingdao Edition Fifth Grade Science Volume 1 industry PPT template

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