THS085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THS085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THS085 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox is a high-precision motion control component that rotates around a hollow shaft. It is also known as Hollow Rotary Platform and Hollow Rotary Table. The THS085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox has a wide range of applications in various fields due to its compact structure, high precision, and high torque output. Its design allows cables, fluid pipes, or other necessary components to pass through the center of the shaft without affecting the rotation function of the actuator itself.

Technical Parameter

Specifications	THS085-5
Reduction ratio	18
Positioning accuracy	士0.5arcmin
Allowable torque	5Nm
Permissible speed	200r/min
Repetitive positioning accuracy	士5arcsec
Allowable inertia load	130N
Allowable axial load	500Nm
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	1.2kg
Appearance dimensions	42mm
Phase number	2PHASES
Rated current	1.5A/PHASES
Coil impedance	4.3±10%OHM/PHASE
Coil impedance	6.0MH
Maintain torque	6.5kg.cm
Moment of inertia	82g.cm
Motor length	Open loop: 61mm Closed loop: 81mm
Encoder resolution	/
Insulation level	B
Step angle	1.8°
Lead	1000

Basic Structure of Hollow Rotary Actuator

The basic structure of Hollow Rotary Actuator includes:

1. Cross roller bearings
2. Precision gears
3. Input mounting flange
4. Input shaft
5. Induction device

Cross Roller Bearings

Cross roller bearings are the key components of the Hollow Rotary Actuator that provide high rigidity, high load capacity, and high precision.

Precision Gears

The precision gears of the Hollow Rotary Actuator are designed to provide high torque output and low backlash. The planetary gearbox is commonly used in the Hollow Rotary Actuator due to its compact design and high gear reduction ratio.

Input Mounting Flange

The input mounting flange is used to mount the Hollow Rotary Actuator onto a device. It is designed to provide a rigid connection and accurate alignment.

Input Shaft

The input shaft connects the Hollow Rotary Actuator to the driving source, such as a motor. It is designed to provide high torque transmission and accurate position control.

Induction Device

The induction device, such as an encoder or magnetostrictive displacement sensor, is used to provide accurate position feedback for closed-loop control.

Working Principle of Hollow Rotary Actuator

The Hollow Rotary Actuator works based on the following principles:

1. Drive Source: The Hollow Rotary Actuator is usually powered by a motor, such as a servo motor, stepper motor, or DC motor. The motor converts electrical energy into mechanical energy and transmits it to the transmission system through the input shaft.
2. Transmission Mechanism: The transmission system usually contains a set of precision gears, such as a planetary gearbox. The power from the motor is transmitted to the sun gear through the input shaft, and the sun gear drives a set of planetary gears that rotate around the sun gear and also rotate around their own axes. This design provides high torque output and low rotation speed.
3. Hollow Shaft Design: The core feature of the Hollow Rotary Actuator is the hollow rotating shaft, which allows cables, fluid pipes, or other necessary components to pass through the center of the shaft without affecting the rotation function of the actuator itself. This feature greatly enhances the integration ability of the equipment in limited space.
4. Position Control and Feedback: To achieve precise position control, the Hollow Rotary Actuator is equipped with position sensors, such as encoders or magnetostrictive displacement sensors. These sensors detect the rotation angle of the actuator in real-time and send the data back to the control system to form a closed-loop feedback mechanism, which ensures the actuator moves accurately according to the set target position.
5. Load Application: The output end of the actuator is connected to the load, such as robot joints, radar antennas, medical devices, etc., through a flange or other interface, so that it can rotate accurately and continuously or intermittently.

Design and Selection Considerations of Hollow Rotary Actuator

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

Factor	Description
Load Capacity	The maximum load that the Hollow Rotary Actuator can handle.
Accuracy	The accuracy requirement of the application.
Rotation Speed	The required rotation speed of the application.
Torque	The required torque of the application.
Integration	The ability to integrate the Hollow Rotary Actuator into the application.

Applications of Hollow Rotary Actuator

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

1. Robotics: The Hollow Rotary Actuator is widely used in robot joints, such as robotic arms and humanoid robots, due to its high precision and torque output.
2. Aerospace: The Hollow Rotary Actuator is used in aerospace equipment, such as satellites and telescopes, due to its compact design and high precision.
3. Medical Equipment: The Hollow Rotary Actuator is used in medical equipment, such as MRI machines and radiation therapy machines, due to its high precision and ability to transmit cables and pipes through the center of the shaft.
4. Military Equipment: The Hollow Rotary Actuator is used in military equipment, such as radar antennas and missile launchers, due to its high precision and ability to withstand harsh environments.
5. Optical Instruments: The Hollow Rotary Actuator is used in optical instruments, such as cameras and telescopes, due to its high precision and ability to rotate continuously.
6. Industrial Automation: The Hollow Rotary Actuator is used in industrial automation equipment, such as CNC machines and assembly lines, due to its high precision and ability to provide accurate position control.

About Our Company

We are a modern enterprise specializing 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, and after-sales service team. We mainly develop and produce servo cylinders, servo press machines, electric push rods, electric slide tables, and multi-degree-of-freedom platforms. Our company always adheres to the principle of "integrity, sincerity, stability, and compliance", with the aim of elaborately designing, exquisite manufacturing, excellent products, and sincere service.Author: Miya