TH280 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

TH280 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

TH280 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox is a high-precision rotary motion device that features a hollow shaft design. It is commonly known as Hollow Rotary Platform or Hollow Rotary Table. The product serves the purpose of providing accurate rotary motion in a limited space. The TH280 Hollow Rotary Actuator is commonly used in various industrial applications due to its compact structure and high torque output. The product is widely used in industries such as robotics, aerospace, medical equipment, military equipment, and industrial automation.

Technical Parameter

Specifications	TH280-10 / TH280-18
Reduction ratio	1:10 / 1:18
Allowable torque	200Nm / 226Nm
Adapted motor	1KW/2KW AC Servo motor
Rotating platform bearings	Cross Roller Bearing
Moment of inertia	200430*0.000001 kg.m²
Permissible speed	200r/min
Allowable inertia load	296N
Allowable axial load	7000N
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	19kg

Basic Structure of Hollow Rotary Actuator

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

1. Cross roller bearing: It is an essential component of the actuator that supports high axial and radial loads. It is commonly used to reduce friction and improve the accuracy of the rotation.
2. Precision gear: The gear is an essential component of the Hollow Rotary Actuator that provides high torque output. It is designed to provide accurate rotary motion in a limited space.
3. Input mounting flange: The input mounting flange is used to connect the input shaft to the motor.
4. Input shaft: The input shaft is connected to the motor and provides the driving force to the Hollow Rotary Actuator.
5. Inductive device: The inductive device is used to sense the position of the Hollow Rotary Actuator and provide feedback to the control system.

The cross roller bearing and precision gear are the critical components of the Hollow Rotary Actuator. The cross roller bearing supports high axial and radial loads, and the precision gear provides high torque output. The input mounting flange and input shaft connect the motor to the actuator, and the inductive device provides feedback to the control system to achieve accurate rotary motion. The Hollow Rotary Actuator's significant feature is the hollow shaft design that allows cables, fluid lines, or other necessary components to pass through the center of the actuator without affecting its rotation.

Working Principle of Hollow Rotary Actuator

The working principle of the Hollow Rotary Actuator is based on the following components:

1. Drive source: The Hollow Rotary Actuator is usually powered by a motor, such as a servo motor, stepper motor, or DC motor, which converts electrical energy into mechanical energy. The motor provides the driving force to the input shaft of the Hollow Rotary Actuator.
2. Transmission mechanism: The transmission mechanism consists of a set of precision gears, such as a planetary gearbox. The motor's power is transmitted through the input shaft to the sun gear, which drives a set of planetary gears that rotate around the sun gear while revolving around the internal ring gear. This mechanism provides high torque output and reduces the rotational speed.
3. Hollow shaft design: The core feature of the Hollow Rotary Actuator is the internal hollow shaft that allows cables, fluid lines, or other necessary components to pass through the center of the actuator without affecting its rotation function. This feature significantly enhances the equipment's integration in a limited space.
4. Position control and feedback: The Hollow Rotary Actuator is equipped with position sensors, such as encoders or magnetostrictive displacement sensors, that detect the actuator's rotation angle and transmit the data back to the control system. This feature forms a closed-loop feedback mechanism to ensure accurate motion according to the set target position.
5. Load application: The output end of the Hollow Rotary Actuator is connected to the load, such as robotic joints, radar antennas, or medical equipment, using a flange or other interface method. This feature enables precise continuous or intermittent rotation operation.

The Hollow Rotary Actuator's working principle is based on the drive source, transmission mechanism, hollow shaft design, position control and feedback, and load application. The motor provides the driving force to the input shaft, and the precision gearbox provides high torque output. The internal hollow shaft allows cables, fluid lines, or other necessary elements to pass through the center of the actuator without affecting its rotation function. The position sensors detect the rotation angle and provide feedback to the control system to ensure accurate motion. The load is connected to the output end of the actuator, enabling precise continuous or intermittent rotation operation.

Design and Selection Considerations of Hollow Rotary Actuator

The design and selection considerations of Hollow Rotary Actuator are as follows:

Design and Selection Considerations	Description
Rotational speed	The rotational speed is critical to the selection of the Hollow Rotary Actuator. It depends on the application's requirements, such as the required operation speed, acceleration, and deceleration time.
Load capacity	The load capacity of the Hollow Rotary Actuator depends on the application's requirements, such as the required torque output and radial and axial loads.
Accuracy	The accuracy of the Hollow Rotary Actuator depends on the application's requirements, such as the required repeatability, positioning accuracy, and rotational accuracy.
Environmental conditions	The environmental conditions, such as temperature, humidity, and vibration, must be considered during the design and selection of the Hollow Rotary Actuator.

Application Fields of Hollow Rotary Actuator

The Hollow Rotary Actuator is widely used in various industrial applications, including:

1. Robotics technology: The Hollow Rotary Actuator is commonly used in robotic applications to provide accurate rotary motion, such as robotic joints and robotic arms.
2. Aerospace: The Hollow Rotary Actuator is used in aerospace applications, such as satellite and spacecraft positioning systems.
3. Medical equipment: The Hollow Rotary Actuator is used in medical equipment, such as CT scanners and X-ray machines.
4. Military equipment: The Hollow Rotary Actuator is used in defense applications, such as missile guidance systems and radar antennas.
5. Optical instruments: The Hollow Rotary Actuator is used in optical instruments, such as telescope positioning systems and laser cutting machines.
6. Industrial automation: The Hollow Rotary Actuator is used in various industrial automation applications, such as conveyor systems and packaging machines.

About Our Company

We are a modern enterprise that specializes in the development, production, and sales of professional 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 focus on developing and producing servo cylinders, servo press machines, electric push rods, electric slide tables, and multi-degree-of-freedom platforms. Our company adheres to the principle of "integrity, sincerity, stability, and compliance," with the product's exquisite design, exquisite manufacturing, and sincere service.Author: Miya