Hydraulic Motor Types Flashcards
What are the three main groups of motors?
- Low speed, high torque (LSHT) motors
- High speed, low torque (HSLT) motors
- Limited rotation motors
These classifications help in identifying the appropriate motor for specific applications.
What are the features of LSHT motors?
- Smooth operation under heavy loads at speeds down to two rpm
- High starting and stall torque
- Start smoothly under full load
- Little torque variation through their speed range
LSHT motors are designed for applications requiring reliable performance under heavy loads.
List some applications of LSHT motors.
- Crane hoists
- Dynamic rollers for compacting earth
- Slow turning vacuum screens and vacuum drums in process plants
- Power steering motors on heavy equipment
LSHT motors are used in various industries due to their high torque capabilities.
What types of LSHT motors are mentioned?
- Radial piston
- Cam-type radial piston
- Roller vane gerotor
Each type of LSHT motor has unique design features suited for specific applications.
True or False: LSHT motors operate at high speeds and low torque.
False
LSHT motors are characterized by low speeds and high torque.
Fill in the blank: LSHT motors start smoothly under _______.
[full load]
This feature is crucial for applications where sudden torque changes can cause system failures.
What are the features of HSLT motors?
They can operate continuously at constant high speeds and maintain high speed under steady or variable conditions.
List three applications of HSLT motors.
- Fans
- Generators
- Compressors
What are the types of HSLT motors?
- In-line piston
- Bent axis piston
- Vane
- Gear
What are limited rotation motors?
Motors that have been modified to allow the motor to turn only part of a revolution.
What is a common application of limited rotation motors?
They are used to open large valves.
True or False: Limited rotation motors are also called torque generators.
True
Fill in the blank: Limited rotation motors are used in applications such as _______.
opening large valves
What type of motor is used on a robot for limited rotation?
Limited rotation vane motor
