THS200 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

The THS200 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox is a precision rotary actuator that is widely used in various fields due to its high accuracy and compact structure. It is also known as Hollow Rotary Platform and Hollow Rotary Table. The THS200 is designed to provide a high torque output while maintaining a small footprint, making it ideal for use in limited space applications.

Technical Parameter

Specifications	THS200-18
Reduction ratio	18
Positioning accuracy	士0.5arcmin
Allowable torque	5Nm
Permissible speed	200r/min
Repetitive positioning accuracy	士5arcsec
Allowable inertia load	2116N
Allowable axial load	4000Nm
Deviation of rotating platform tabletop	士0.005mm
Parallelism of rotating platform	士0.015mm
Concentricity of rotating platform	士0.01mm
Rotating platform bearings	Cross Roller Bearing
Protection and other records	IP40
Moment of inertia	2500*0.000001kg.m²
Weight	8.2kg
Appearance dimensions	86mm
Phase number	2PHASES
Rated current	5A/PHASES
Coil impedance	0.43±10%OHM/PHASE
Coil impedance	3.5MH
Maintain torque	4.5kg.cm
Moment of inertia	1600g.cm
Motor length	Open loop: 81mm Closed loop: 101mm
Encoder resolution	/
Insulation level	B
Step angle	1.8°
Lead	1000

Basic Construction of Hollow Rotary Actuator

The Hollow Rotary Actuator consists of the following parts:

1. Crossed Roller Bearing
2. Precision Gear
3. Input Mounting Flange
4. Input Shaft
5. Sensing Device

Crossed Roller Bearing

The crossed roller bearing is a type of bearing that can withstand radial and axial forces and is commonly used in precision equipment. It provides a high load capacity and high rigidity, making it ideal for use in the Hollow Rotary Actuator.

Precision Gear

The precision gear is a set of gears that provide a high torque output while maintaining a compact structure. It is typically a planetary gear set that is designed to provide a high gear reduction ratio.

Input Mounting Flange

The input mounting flange is a circular flange that is used to connect the Hollow Rotary Actuator to the driving motor. It is typically made of aluminum or stainless steel and provides a secure connection between the motor and the actuator.

Input Shaft

The input shaft is the shaft that connects the motor to the Hollow Rotary Actuator. It is typically a solid shaft that provides a rigid connection between the motor and the actuator.

Sensing Device

The sensing device is a position sensor that provides feedback to the control system to ensure accurate positioning of the Hollow Rotary Actuator. It is typically an encoder or a magnetostrictive displacement sensor.

Working Principle of Hollow Rotary Actuator

The Hollow Rotary Actuator works on the following principles:

1. Drive Source
2. Transmission Mechanism
3. Hollow Shaft Design
4. Position Control and Feedback
5. Load Application

Drive Source

The drive source for the Hollow Rotary Actuator is typically an electric motor, such as a servo motor, stepper motor, or DC motor. The motor converts electrical energy into mechanical energy, which is then transmitted to the transmission mechanism.

Transmission Mechanism

The transmission mechanism typically consists of a precision gear set, such as a planetary gear set. The motor's power is transmitted to the sun gear, which drives a set of planetary gears that rotate around the sun gear. The planetary gears also rotate around an internal ring gear, which provides torque amplification and speed reduction.

Hollow Shaft Design

The Hollow Rotary Actuator features a hollow shaft design that allows cables, fluid lines, or other necessary components to pass through the center of the shaft without interfering with the actuator's rotation. This feature greatly enhances the device's integration in limited space applications.

Position Control and Feedback

The Hollow Rotary Actuator is equipped with position sensors, such as encoders or magnetostrictive displacement sensors, to achieve precise position control. These sensing devices detect the actuator's rotation angle in real-time and send data back to the control system, forming a closed-loop feedback mechanism that ensures precise execution of the target position.

Load Application

The output end of the actuator is connected to the load that needs to be rotated, such as a robot joint, radar antenna, medical equipment, etc., through a flange or other interface, enabling precise continuous or intermittent rotation operations.

Design and Selection Considerations of Hollow Rotary Actuator

The following factors should be considered when designing and selecting the Hollow Rotary Actuator:

Factor	Description
Load Capacity	The maximum load that the actuator can handle.
Speed Range	The range of rotation speeds that the actuator can achieve.
Resolution	The smallest increment of rotation that the actuator can achieve.
Accuracy	The degree of precision with which the actuator can position the load.
Torque Capacity	The maximum torque that the actuator can produce.
Environmental Conditions	The temperature and other environmental factors that the actuator will be exposed to during operation.
Integration Requirements	The level of integration required between the actuator and other components in the system.

Applications of Hollow Rotary Actuator

The Hollow Rotary Actuator is widely used in the following fields:

1. Robotics
2. Aerospace
3. Medical Devices
4. Military Equipment
5. Optical Instruments
6. Industrial Automation

Robotics

The Hollow Rotary Actuator is commonly used in robotic systems, such as industrial robots, medical robots, and service robots, to provide precise and continuous rotation of the robot joints.

Aerospace

The Hollow Rotary Actuator is used in aerospace applications, such as satellite tracking systems and radar antennas, to provide precise and stable rotation under extreme environmental conditions.

Medical Devices

The Hollow Rotary Actuator is used in medical devices, such as CT scanners, radiation therapy systems, and blood analysis equipment, to provide precise and controlled rotation of the medical components.

Military Equipment

The Hollow Rotary Actuator is used in military equipment, such as radar systems, missile launchers, and unmanned aerial vehicles, to provide precise and rapid rotation of the military components.

Optical Instruments

The Hollow Rotary Actuator is used in optical instruments, such as telescopes and microscopes, to provide precise and continuous rotation of the optical components.

Industrial Automation

The Hollow Rotary Actuator is used in industrial automation applications, such as assembly lines and packaging machines, to provide precise and repeatable rotation of the industrial components.

About Us

We are a professional modern enterprise that integrates R&D, design, manufacturing, sales, and service of servo electric cylinders, servo press equipment, and other servo stamping equipment. Our company has a professional design team, processing team, assembly team, sales, and after-sales service team. We mainly develop and produce servo cylinders, servo presses, electric push rods, electric slide tables, and multi-degree-of-freedom platforms. We always adhere to the principle of "integrity, sincerity, stability, and compliance," and we are committed to providing customers with carefully designed, precision-manufactured, and highly polished products, with sincere service.

Author: Miya