TH085 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

Product Overview

The TH085 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox is a high precision motion control device that employs a hollow rotary platform to provide precise and accurate positioning of loads. It features a planetary gearbox, which amplifies the output torque while reducing the input speed, and a hollow rotary table that enables it to function as a rotary actuator. The TH085 is widely used in a variety of industries such as robotics, aerospace, medical equipment, military equipment, and industrial automation. It is also known as the Hollow Rotary Platform and Hollow Rotary Table. Here is an image of the product:

Technical Parameter

Specifications	TH085-5 / TH085-10 / TH085-18
Reduction ratio	1:5 / 1:10 / 1:18
Allowable torque	20Nm / 16Nm/ 9Nm
Adapted motor	200/400W  200/400W  100W AC Servo motor
Rotating platform bearings	Cross Roller Bearing
Moment of inertia	2500*0.000001 kg.m²
Permissible speed	200r/min
Allowable inertia load	70N / 55N / 45N
Allowable axial load	500N
Positioning accuracy	士0.5arcmin
Repeated positioning accuracy	士5arcsec
Deviation of rotating platform tabletop	士 0.005mm
Parallelism of rotating platform	士0.015mm
Concentricity of rotating platform	±0.01 mm
Precision lifespan	20000 h
Protection level	IP40
Weight	1.2kg

 

Basic Structure

The basic structure of the Hollow Rotary Actuator consists of several components:

1. Crossed roller bearing;
2. Precision gears;
3. Input mounting flange;
4. Input shaft;
5. Sensing devices.

Here is an image of the Hollow Rotary Actuator:Each component plays an important role in the operation of the actuator:

• The crossed roller bearing provides high-precision positioning and reduces the deformation of the platform during rotation;
• The precision gears amplify the output torque while reducing the input speed;
• The input mounting flange allows for easy installation;
• The input shaft connects the actuator to the drive system;
• The sensing devices provide feedback on the position of the actuator.

Working Principle

The Hollow Rotary Actuator operates according to 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 via the input shaft.
2. Transmission Mechanism: The transmission system generally includes a set of precision gears, such as a planetary gearbox. The motor's power is transmitted to the sun gear through the input shaft, and the sun gear drives a set of planetary gears that rotate around it. These planetary gears simultaneously rotate and revolve around the internal ring gear, thereby amplifying the output torque and reducing the rotation speed. This design allows the hollow rotary actuator to provide high torque output while maintaining a compact structural size.
3. Hollow Shaft Design: The core feature of the actuator is that it has a hollow rotating shaft inside, which allows cables, fluid pipelines, or other necessary components to pass through the center axis without affecting the actuator's rotation function. This characteristic greatly enhances the equipment's integration 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 sensing devices detect the actuator's rotational angle in real-time and transmit the data back to the control system, forming a closed-loop feedback mechanism and ensuring that the actuator moves precisely according to the set target position.
5. 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 device, etc., through a flange or other interface, enabling it to perform precise continuous or intermittent rotation operations.

Here is an image of the Hollow Rotary Actuator in action:The Hollow Rotary Actuator's working principle ensures that it can provide high-precision, high-speed, and high-torque motion control while maintaining a compact structure.

Design Considerations and Selection Factors

Design Considerations	Selection Factors
Load capacity	Maximum load capacity, torque capacity, and moment capacity
Precision	Positioning accuracy and repeatability
Speed	Maximum rotation speed and acceleration
Size	Hollow shaft size, overall dimensions, and weight
Environmental Conditions	Operating temperature, humidity, and vibration
Control System	Compatibility with existing control systems

The design considerations and selection factors should be carefully evaluated when selecting a Hollow Rotary Actuator to ensure that it meets the specific application requirements.

Applications

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

1. Robotics: The Hollow Rotary Actuator is widely used in robot joints, grippers, and end-effectors to provide precise motion control.
2. Aerospace: The Hollow Rotary Actuator is used in satellites, aircraft, and other aerospace equipment that require high-precision motion control.
3. Medical Equipment: The Hollow Rotary Actuator is used in medical devices such as CT scanners, X-ray machines, and surgical robots to provide precise and accurate motion control.
4. Military Equipment: The Hollow Rotary Actuator is used in military equipment such as radar systems, missile launchers, and guided weapons to provide high-precision positioning and motion control.
5. Optical Instruments: The Hollow Rotary Actuator is used in telescopes, microscopes, and other optical instruments to provide precise motion control.
6. Industrial Automation: The Hollow Rotary Actuator is used in industrial automation equipment such as packaging machines, assembly lines, and CNC machines to provide precise and accurate motion control.

Here is an image of the Hollow Rotary Actuator in use:

Company Introduction

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 research and develop servo cylinders, servo press machines, electric push rods, electric sliding tables, multi-degree-of-freedom platforms, and other servo stamping equipment. We adhere to the principles of "integrity, sincerity, and prudence," and "meticulous design, exquisite manufacturing, and sincere service" to provide high-quality products and services to our customers.Author: Miya