THS060 Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THS060 hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox, also known as Hollow Rotary Platform or Hollow Rotary Table, is a precision rotary motion system that features a hollow center shaft designed to accommodate various cables, fluid lines or other necessary components through the axis without hindering the rotational function of the system. The platform is a highly versatile product that finds application in a wide range of industries including robotics, aerospace, medical devices, military equipment, optics, and industrial automation.

Technical Parameter

Specifications	THS060-5
Reduction ratio	5
Positioning accuracy	士0.5arcmin
Allowable torque	5Nm
Permissible speed	200r/min
Repetitive positioning accuracy	士5arcsec
Allowable inertia load	20N
Allowable axial load	100Nm
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	1.0kg
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

Hollow Rotary Actuator Basics

The Hollow Rotary Actuator is constructed from several main components including:

1. Cross Roller Bearing
2. Precision Gear
3. Input Mounting Flange
4. Input Shaft
5. Sensing Devices

The cross roller bearing is designed to support high axial and radial loads while maintaining high accuracy and rigidity. The precision gear is used to transmit torque and reduce the rotational speed. The input mounting flange and input shaft are used to connect the actuator to a power source such as a servo motor. Sensing devices such as encoders or magnetostrictive displacement sensors are used to provide precise position feedback to the control system, forming a closed-loop feedback mechanism and ensuring accurate motion according to the set target position.

Cross Roller Bearing

The cross roller bearing is a type of rolling element bearing that features cylindrical rollers arranged in a cross pattern between inner and outer rings. This design provides high rigidity and accuracy while maintaining a compact structure.

Precision Gear

The precision gear is used to transmit torque and reduce the rotational speed. The gear can be designed as a standard spur gear, a helical gear, or a planetary gear. Planetary gears are commonly used due to their high torque transmission capacity and compact structure.

Input Mounting Flange and Input Shaft

The input mounting flange and input shaft are used to connect the actuator to a power source such as a servo motor. The input mounting flange is designed to provide a secure and accurate connection to the motor, while the input shaft is used to transfer the rotary motion from the motor to the actuator.

Sensing Devices

Sensing devices such as encoders or magnetostrictive displacement sensors are used to provide precise position feedback to the control system. This feedback is used to form a closed-loop feedback mechanism, ensuring accurate motion according to the set target position.

Working Principle of Hollow Rotary Actuator

The working principle of Hollow Rotary Actuator involves:

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

Drive Source

Hollow Rotary Actuator is typically powered by a motor, such as a servo motor, a stepper motor, or a DC motor. The motor converts electrical energy into mechanical energy and transfers the energy to the transmission system through the input shaft.

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, which drives a set of planetary gears that rotate around the sun gear. The planetary gears, in turn, revolve around the internal ring gear while simultaneously rotating around their own axes, resulting in torque amplification and reduced rotational speed. This design enables the Hollow Rotary Actuator to provide high torque output while maintaining a compact structure.

Hollow Shaft Design

The core feature of the actuator is its internal hollow rotating shaft. This design allows for cables, fluid lines, or other necessary components to pass through the axis without hindering the actuator's rotational function. This feature greatly enhances the device's integration in confined spaces.

Position Control and Feedback

To achieve precise position control, the actuator is equipped with position sensors such as encoders or magnetostrictive displacement sensors. These sensors detect the actuator's rotational angle in real-time and transmit the data back to the control system, forming a closed-loop feedback mechanism that ensures accurate motion according to the set target position.

Load Application

The output end of the actuator is connected to the load to be rotated, such as robotic joints, radar antennas, medical equipment, etc., via a flange or other interface. The actuator enables precise continuous or intermittent rotation operations.

Design and Selection Considerations for Hollow Rotary Actuator

Design and Selection Factors	Description
Load Capacity	Determines the maximum load that the actuator can handle.
Rotational Speed	Determines the maximum rotational speed of the actuator.
Positioning Accuracy	Determines the degree of accuracy of the actuator's positioning.
Mounting Configuration	Determines the type of mounting required for the actuator's application.
Environmental Factors	Determines whether the actuator can withstand environmental factors such as temperature, moisture, and vibration.

Applications of Hollow Rotary Actuator

Hollow Rotary Actuator finds applications in various industries, including:

1. 1. Robotics

The actuator is used in robotic applications to provide precise and continuous motion control for robotic joints, grippers, and end-effectors.

1. 1. Aerospace

The actuator is used in aerospace applications, such as satellite positioning, solar panel tracking, and antenna positioning systems, to provide accurate and reliable motion control.

1. 1. Medical Devices

The actuator is used in medical devices such as surgical robots, CT scanners, and X-ray machines to provide precise and stable motion control.

1. 1. Military Equipment

The actuator is used in military equipment such as unmanned aerial vehicles (UAVs), missile guidance systems, and target tracking systems to provide accurate and reliable motion control.

1. 1. Optics

The actuator is used in optical applications such as telescopes, cameras, and laser cutting machines to provide precise and stable motion control.

1. 1. Industrial Automation

The actuator is used in industrial automation applications such as CNC machines, assembly lines, and packaging machines to provide precise and reliable motion control.

About Our Company

We are a modern enterprise specialized 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 mainly research and develop servo cylinders, servo press machines, electric push rods, electric slide tables, multi-degree-of-freedom platforms, and other servo stamping equipment. We always adhere to the principle of "integrity, sincerity, stability, and compliance." Our products are meticulously designed, superbly manufactured, and sincerely serviced.

Author: Miya