What Are Gears and the Applications?
Knowledge

What Are Gears and the Applications?

Gear transmission systems are widely used in various industrial products and equipment, from designing, manufacturing, testing to applying, and form a technical field of its own. In recent years, with the development and manufacturing of high-tech products, the non-cutting gears as plastics and powder metallurgy are used with non-metal cutting precision pinion transmission mechanisms more and more often as the metal cutting gears.
Published: Sep 17, 2021
What Are Gears and the Applications?


What Is a Gear?

A Gear or cogwheel is a mechanical part with teeth on the rim that can continuously mesh and transmit motion and power between machine components in mechanical devices. Depending on the design and construction of the gear pair employed, gears can change the direction of movement and/or increase the output speed or torque. There are different types of gears, such as spur gears, helical gears, bevel gears, worm gears, rack and pinion and each of them is used in different conditions. Among which spur gear is the most common one.

1. Spur Gears: spur gear, or straight-cut gear is the simplest type of gear. They consist of a cylinder or disk with teeth projecting radially.

2. Helical Gears: helical gear is a type of cylindrical gears where the teeth are curved into a helix shape.

3. Bevel Gears: bevel gear is a gear where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped.

4. Worm Gears: worm gear is a type of staggered shaft gear that transmits motion between two shafts that are neither intersecting nor parallel.

5. Rack and Pinion: rack and pinion is a type of linear actuator that comprises a circular gear (the pinion) engaging a linear gear (the rack).

What Are the Functions of a Gear?

In the friction wheel transmission mechanism, if the positive pressure is insufficient, the driving part will not have enough friction to drive the driven part, and if the positive pressure is too large, slipping will occur. Therefore, the edge of the wheel surface of the friction wheel is made into the shape of a tooth according to a certain curve, which is used to replace the rolling cylindrical friction wheel. When rubbing the wheel and moving, this part is called gear.

In the industry, the main function of gears is to transmit power, and its application range is very wide. From the transmission mechanism of automobiles to mechanical watches, gears can use its extremely small structure to efficiently transmit large torque, and even extremely small power can be transmitted smoothly.

The Main Applications of Taiwan Gear Industry

Taiwan's gear industry can be roughly classified into five categories: precision mechanical gears, vehicle gears, reducer gears, fine small gears, and large-scale gears.

1. Precision mechanical gears are mainly supplied to machine tools, textile machinery, printing machinery, rubber and plastic machinery, fluid pumps, etc. The important key equipment is gear grinding machines, and the accuracy often requires JIS 1 or 0 or even higher. 

2. Vehicle gears are mainly supplied to automobiles, locomotives, agricultural machinery, and scooters; the main processing equipment is gear hobbing machines, gear scrapers, gear planers, which belong to the medium and large-scale production type, and the demand for automation is high, and the value and output value are relatively high application.

3. Reducer gears are mainly worm gear reducers and gear motor reducers, etc., which have a wide range of uses and are used in machinery and equipment in all walks of life. In addition to supplying part of the domestic market demand, most of them are mainly exported. In addition, the composition of cooperative factories, the management of component inventory and assembly are also major features of this industry.

4. Fine small gears refer to gears with a modulus of 1.0 or less. Most of these gears have only quenched and tempered materials and are less hardened. However, the drive gear shaft has fewer teeth and is particularly particular about noise, so precise the speed and quality requirements of the gear hobbing program are relatively high, and high-grade tungsten carbide gear hobbing cutters and high-speed gear hobbing machines are often used.

5. Large-scale gears refers to a gear factory that can produce gears with a diameter of more than one meter. In addition to gear hobbing or milling, after heat treatment hardened, further finishing processes are required to meet the requirements of accuracy and life. Such large gears are mostly used in machinery in petrochemical, mining and research, cement, shipbuilding, sugar, steel, and other factories.

The gear industry has a wide range of applications and has become a very important processing link in the machinery manufacturing industry. High-quality high-precision gear components are matched and installed in various mechanical equipment, such as machine tools, industrial machinery, locomotives, electric tools, etc. With the development of gear components in Taiwan, it has also evolved from an advanced exporting country to an exporting country, and sold to advanced industrial countries such as Europe, the United States, and Japan.

In many new machines and equipment, the amount of gear used is gradually decreasing, but in response to the industrial needs of new energy, energy-saving, high precision, and high speed, the application of gear transmission mechanism is still increasing. Especially when oil demand is unbalanced and prices are rising steadily, the research and development of new energy and energy-saving methods will become more and more urgent. Therefore, such as the gear increaser of wind power generation, the more fuel-efficient manual automatic transmission, etc. may become mainstream products in the future. In addition, high-precision products such as high-speed ratio gearboxes, metering gear pumps, high-load worm gear reducers, or instrument-grade indexing plates are also worthy of industry investment.

Published: Sep 17, 2021 Source :tami

  • Gear
  • Machining Center
  • Global

Further reading

You might also be interested in ...

Headline
Knowledge
What are the Software Service Industry and the Related Industrial Chain?
Software Service Industry belongs to all industries that are engaged in computer system design, data and information supply services, and software publishing.
Headline
Knowledge
What Are a Bolt and the Production Process?
Bolt is one of the basic hardware components in the engineering and construction industry. The production process of bolts has evolved into an advanced and high-tech multi-step process.
Headline
Knowledge
Application of High-Pressure Processing Technology in Agricultural Food
Food safety issues have always been the focus of social concern, and various countries and organizations have also put forward relevant food safety regulations and testing standards to ensure the health and safety of food processing and food processing technology engaged with it.
Headline
Knowledge
What Is Selective Laser Sintering 3D Printing?
Selective laser sintering is an additive manufacturing technology that sinters small particles of polymer powder into a 3D three-dimensional structure through high-power laser light; thus, this is also called selective laser sintering 3D printing, or SLS 3D printing.
Headline
Knowledge
What Is Metal Etching?
Etching is to process the surface of the object by chemical strong acid corrosion, mechanical polishing, or electrochemical electrolysis. In addition to increasing the aesthetics, it can also increase the added value of the product. From traditional metal processing to high-tech semiconductor manufacturing are all applications of etching technology.
Headline
Knowledge
What Is a Welding Process?
Welding is a process and technology for joining metals or other thermoplastics by heating or pressing.
Headline
Knowledge
What Is a Data Processing Center?
Central data processing services are usually used to complete key tasks in computer and telematics processing. Generally, include environmental control (air conditioning system to prevent fire, etc.), emergency power and redundancy, and high physical security.
Headline
Knowledge
What is Automation Guided Vehicle?
During the operation of the factory, the flow of materials determines the production efficiency of the factory. Recently, automation equipment has gradually become a production line system, but the supply or handling of materials still relies on manual handling operations by personnel, resulting in often unsmooth logistics and production flow. Or there is an interruption, and the production line does not want to occupy a huge space, so Automation Guided Vehicle (AGV) technology responds to it.
Headline
Knowledge
What Is a Smart Machine?
Smart machine tools originally referred to various stand-alone auxiliary software functions developed by machine tool factories to improve operating efficiency. In recent years, under the wave of Industry 4.0, smart machine tools have received new explanations. In addition to further strengthening the stand-alone software auxiliary functions, it also needs to be able to successfully play the role of the core equipment in the future intelligent chemical factory, and complete production in coordination with all the equipment in the factory through the communication interface.
Headline
Knowledge
What Is the Cloud?
"Cloud" refers to servers accessed through the Internet, as well as software and databases running on these servers. Cloud servers are in data centers around the world. By using cloud computing, users and companies do not need to manage physical servers or run software applications on their machines.
Headline
Knowledge
What Are the Common Plastics Manufacturing Processes?
Plastic products can be seen everywhere in our daily life, and different plastic products are made through different processing techniques. Plastics manufacturing is a process of making plastic into semi-products or products with practical value. Usually, plastics manufacturing includes primary processing and secondary processing of plastics.
Headline
Knowledge
What is the granulation process?
Plastic granulation technology is mainly used in plastic product manufacturing and resource recycling to make various plastic products or plastic raw materials, and has both environmental and economic benefits.
Agree