THG085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THG085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THG085 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox, also referred to as Hollow Rotary Platform and Hollow Rotary Table, is a precision motion control product that consists of a hollow rotary actuator and a high precision planetary gearbox. The actuator is designed with a hollow rotating shaft that allows cables, fluid lines, or other necessary components to pass through without interfering with the actuator's rotation. It provides smooth and accurate rotation with high torque output and compact structure.

Technical Parameter

Specifications	THG085
Reduction ratio	30/40/50/70/80/100
Rated torque	55/50/60/50/45/40Nm
Adapted motor	200/400W AC Servo motor
Emergency stop torque	3x rated torque
Rated input speed	5000rpm
Maximum input speed	10000rpm
Return gap	≤1arcmin
Torsional rigidity	7Mn/arcmin
Permissible radial force	1530N
Permissible axial force	750N
Service life	2000hr （Continuous operation reduces service life by 50%)
Transmission efficiency	97%
Working temperature	-10-+90℃
Protection level	IP65
Lubrication	synthetic lubricating oil and grease
Noise	≤70dB(A)
Moment of inertia	0.59kg.cm²
Weight	2.5kg

Hollow Rotary Actuator Construction

The Hollow Rotary Actuator consists of five main parts:

1. Crossed roller bearing
2. Precision gears
3. Input mounting flange
4. Input shaft
5. Inductive device

Crossed Roller Bearing

The crossed roller bearing provides high rigidity and high rotational accuracy.

Precision Gears

The precision gears are designed with a high reduction ratio to achieve high torque output and low speed rotation.

Input Mounting Flange

The input mounting flange allows for easy installation and connection to the driving source.

Input Shaft

The input shaft transmits power from the driving source to the gear train.

Inductive Device

The inductive device provides real-time feedback of the rotary angle and maintains the accuracy of the position control.

Hollow Rotary Actuator Working Principle

The working principle of the Hollow Rotary Actuator can be summarized in five points:

1. Drive source: The actuator is driven by a motor, such as a servo motor, stepper motor, or DC motor, which converts electrical energy into mechanical energy and transmits it to the gear train through the input shaft.
2. Transmission mechanism: The gear train consists of a precision planetary gearbox, where the input shaft drives the sun gear and the planetary gears rotate around it. The planetary gears rotate around their own axis and revolve around the internal gear, resulting in high torque output and low speed rotation.
3. Hollow shaft design: The actuator's core feature is the hollow rotating shaft that allows cables, fluid lines, or other necessary components to pass through without interfering with the actuator's rotation.
4. Position control and feedback: The actuator is equipped with position sensors, such as encoders or magnetostrictive displacement sensors, to provide real-time feedback of the rotary angle and maintain the accuracy of the position control.
5. Load application: The actuator's output end is connected to the load, such as robot joints, radar antennas, medical devices, etc., to enable precise continuous or intermittent rotation.

The Hollow Rotary Actuator provides high torque output, low speed rotation, and compact structure, making it an ideal motion control product for various applications.

Hollow Rotary Actuator Design and Selection Considerations

The design and selection of the Hollow Rotary Actuator should take into account the following factors:

Factor	Description
Rotational speed	The required speed of the load rotation
Rotational torque	The required torque output of the actuator
Load moment of inertia	The moment of inertia of the load and the associated rotation axis
Mounting interface	The type and size of the mounting interface on the actuator and the load
Environmental conditions	The operating environment, such as temperature, humidity, and dust
Position control requirements	The required accuracy and repeatability of the position control

Hollow Rotary Actuator Applications

The Hollow Rotary Actuator has a wide range of applications, including:

1. Robotics
2. Aerospace
3. Medical equipment
4. Military equipment
5. Optical instruments
6. Industrial automation

Some specific applications and their functions are:

Robotics

The Hollow Rotary Actuator is used in robot joints to provide smooth and accurate rotation for various degrees of freedom. It enables robots to perform precise and complex movements in manufacturing, assembly, and other tasks.

Aerospace

The Hollow Rotary Actuator is used in aerospace equipment, such as radar antennas, satellite dish positioning systems, and instrument gimbal systems. It provides high torque output, low speed rotation, and accurate position control in harsh environments.

Medical Equipment

The Hollow Rotary Actuator is used in medical equipment, such as CT scanners, X-ray machines, and surgical robots. It provides precise and stable rotation for medical procedures and imaging applications.

Military Equipment

The Hollow Rotary Actuator is used in military equipment, such as missile guidance systems, radar systems, and unmanned aerial vehicles. It provides high torque output, low speed rotation, and accurate position control in extreme conditions.

Optical Instruments

The Hollow Rotary Actuator is used in optical instruments, such as telescopes, cameras, and laser processing machines. It provides smooth and accurate rotation for precise alignment and positioning of optical components.

Industrial Automation

The Hollow Rotary Actuator is used in industrial automation, such as assembly lines, packaging machines, and material handling systems. It provides high torque output, low speed rotation, and accurate position control for various applications.

About Us

We are a modern enterprise that specializes in the development, production, 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 team, and after-sales service team. We are committed to providing high-quality products and sincere services to our customers.Author: Miya