What are the steps in gearbox design?

What are the steps in gearbox design?

DESIGN PROCESS:

1. MATERIAL SELECTION. The first step in the gearbox design process is to select the material. A material is to be selected by doing intensive research on the properties of the various materials.
2. INPUT PARAMETERS. FOR 1ST REDUCTION.
3. ROUGH SIZING OF GEARS. PARAMETERS.
4. FINE SIZING OF GEARS. FOR 1ST REDUCTION.

What is the working principle of gear box?

It drives the individual gears on the main shaft, which rotate freely on the bearings. Thus, the gearbox passes the drive to the wheels depending upon the gear which engages on the main shaft. Furthermore, when you push the shifter sleeve towards the desired gear, that gear locks onto the main shaft and rotates it.

What are the 4 types of gears?

Different Types of Gears and Uses

• Spur gears.
• Helical gears.
• Bevel gears.
• Worm gears.
• Rack and pinion.

How do I choose the right gearbox?

How to Select a Gearbox

1. Speed and horsepower of the input.
2. Desired output speed or desired output torque (will determine ratio)
3. Characteristics of use; hours per day, nature of shock or vibration in the system.
4. Degree of overhung load.
5. Unit configuration, shaft input or hollow bore input, shaft output or hollow bore output.

What are the basic considerations in design of multi speed gearbox?

It usually usually has two gears and shafts. A gearbox that converts a high speed input into a number of different speed output it is called a multi-speed gear box. Multi speed gear box has more than two gears and shafts. A multi speed gearbox reduces the speed in different stages.

What is a gearbox ratio?

A gear ratio is the ratio of the number of rotations of a driver gear to the number of rotations of a driven gear.

What are 3 types of gearboxes?

In general, there are three different types of gearboxes: concentric, parallel, and right angle. A fourth type called shaft mount is also used in situations where the applications are in a configuration where they cannot be mounted by foot.

What are the components of a gearbox?

Parts of a Gearbox

• Driving Shaft/ Clutch Shaft.
• Main Shaft.
• Layshaft/ Counter Shaft.
• Gears.
• Bearings.
• Gear Shift Fork.

What are the 5 types of gears?

Read on to learn the different types of gear and the applications and industries that utilize them.

• Spur Gear. Spur gears transmit power through shafts that are parallel.
• Helical Gear.
• Double Helical Gear.
• Herringbone Gear.
• Bevel Gear.
• Worm Gear.
• Hypoid Gear.

How do I calculate gearbox size?

The gear ratio is calculated by dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth of the driving gear by the number of teeth of the driven gear (i= Ze/ Zs).

What is gearbox step ratio?

Standard progression

When the spindle speed are arranged in geometric progression then the ratio between the two adjacent speeds is known as step ratio or progression ratio.

What are eight major factors to consider when selecting gears?

Once you’ve established your machine equipment’s greatest needs, you can begin to identify what factors to consider when selecting the right gear.

• Speed and Power.
• Materials.
• Size and Weight.
• Customizability.
• Support and Bearing Requirements.
• The Duty Cycle.
• Motor Mounting Requirements.
• Gear Coating Applications.

What does a 2 to 1 gear ratio mean?

The gear ratio is therefore 2:1 (pronounced “two to one”). If you watch the figure you can see the ratio: Every time the larger gear goes around once, the smaller gear goes around twice. You can see that if both gears had the same diameter, they would rotate at the same speed but in opposite directions.

What does a 4.10 gear ratio mean?

Gear Ratio: the ratio of the ring and pinion gears in the rear axle. So, if you have a 4.10:1 (sometimes 4.10) rear axle, the pinion will turn 4.10 times for every single turn of the ring gear or in other words, for every 4.10 turns of the driveshaft, the rear wheel will spin once.

How do you identify a gearbox?

Methods for Inspecting a Gearbox

1. Visual walkaround.
2. Visual inspection through inspection ports.
3. Borescope inspection.
4. Measure temperature. Thermometers. Resistance temperature detector (RTD) probes. Thermography.
5. Measure oil pressure.
6. Measure sound and vibration.
7. Inspect filter elements.

What are the 6 types of gears?

What is the formula for gear ratio?

How is gearbox stage calculated?

If, for example, gear 5 (z5 = 60 teeth) is replaced by a gear wheel twice as large with twice the number of teeth (z5’= 120 teeth), the gear ratio is doubled in this gear stage to i3’= 8. This doubling also doubles the overall transmission ratio from 24 to it’= 48.

What is a 3 stage gearbox?

A three-stage gearbox is obtained by means of increasing the length of the ring gear and adding another planet stage. A transmission ratio of 100:1 is obtained using individual ratios of 5:1, 5:1 and 4:1.

What are the factors to be considered in design of gearbox?

With this information, gearbox manufacturers can better assist you in selecting the correct gearbox for your intended application.

• Your choice: standard, modified standard, or complete custom.
• Main specs.
• Operation (duty cycle)
• Temperature range.
• Grease/oil.
• Environment.
• Input needs.
• Output needs.

How do you read gearbox ratios?

You just count the number of teeth in the two gears and divide. So if one gear has 60 teeth and another has 20, the gear ratio when these two gears are connected together is 3:1.

What is a 373 gear ratio?

For example, if the ring gear has 37 teeth and the pinion gear has 9 teeth, the ratio is 4.11:1. So for every turn of the ring gear, the pinion will turn 4.11 times. Additionally, with a gear ratio of 3.73, the pinion will turn 3.73 times for one turn of the ring gears, and for a 4.10, the pinion will turn 4.10 times.

What is a good gear ratio?

A gearing ratio between 25% and 50% is typically considered optimal or normal for well-established companies.

What is a gearbox code?

The gearbox code is the bottom of the gearbox and on the left side between the ribs and the gear carrier, it will usually consist of a number followed by a letter or two or three letters followed by a series of numbers. The code is the number and letter or the letters, the numbers signify the date of manufacture.

What is considered a good gearing ratio?

A gearing ratio lower than 25% is typically considered low-risk by both investors and lenders. A gearing ratio between 25% and 50% is typically considered optimal or normal for well-established companies.