What are the possible arrangements to achieve 12 speeds from a gearbox?
The speeds in gear boxes can be arranged in arithmetic progression (A.P.), geometric progression (G.P.), harmonic progression (H.P), and logarithmic progression (L.P.).
What are the consideration while designing gearbox?
Here are five criteria you should consider. While output speed and torque are are clearly important when selecting and designing with gearmotors, several other considerations must be reviewed. Duty cycle, drive train, operating environment, safety requirements, and thermal protection must all be considered.
What are the requirements of a speed gearbox?
Basics of Gearbox Selection
- Service Factor. Before sizing an application, the customer should determine the service factor.
- Ambient Temperature and Environment.
- Shock Load or Type of Load.
- Output Style or Mechanism.
- Output Shaft or Hollow Bore Size.
- Housing Styles.
What are speed steps in gearbox?
It provides information such as speed in each stage, the transmission ratio in each stage, The total number of speeds and its values. The following diagram is a ray diagram of a 12 speed gearbox….
| Output Speed | Structural Formula | Stages |
|---|---|---|
| 6 | 3 (1) 2 (3) 2 (1) 3 (2) | 2 2 |
| 8 | 1 (1) 2 (2) 2 (4) 4 (1) 2 (4) | 3 2 |
| 9 | 3 (1) 3 (3) | 2 |
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.
How many types of gearboxes are there?
In general, there are three different types of gearboxes: concentric, parallel, and right angle.
What is speed diagram?
The speed diagram is a polar diagram, i.e. “a circular system of co-ordinates” – with the wind’s eye, the direction from which the wind is blowing, as zero (upwards) and one of the axes increasing 180º in each direction.
What is the formula for a 12 speed gear box?
Step – 3 “ Structural formula & Ray Diagram ” The structural formula for 12 speed gear box is 3 (1) 2 (3) 2 (6) Stage 1 – Single input is splitted into 3 speeds Stage 2 – 3 input is splitted into 6 speeds ie., each input is splitted into 2 speed Stage 3 – 6 input is splitted into 12 speeds ie., each input is splitted into 2 speed 10.
What is a multi speed gear box called?
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.
How many gears are in a gear box?
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.
Which is the preferred step ratio for a gearbox?
In gearbox design a set of preferred step ratio or preferred numbers is used to obtain the series of output speed of gearbox. The preferred step ratio is mentioned as basic series named as R5, R10,R20,R40 and R80. Each basic series has a specific step ratio.