THD130 Heavy Duty Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THD130 Heavy Duty Hollow Rotary Actuator Rotating Platform Table With High Precision Planetary Gearbox

THD130 Heavy Duty hollow rotary actuator Rotating Platform Table With High Precision Planetary Gearbox is a mechanical device that is used to rotate a load around a fixed axis of rotation with high precision. This actuator is also known as Hollow Rotary Platform and Hollow Rotary Table. The device is equipped with a high precision planetary gearbox and a hollow output shaft that allows cables, fluid lines or other necessary components to pass through the center of rotation without interfering with the actuator's ability to rotate. The actuator has a wide range of applications in various fields due to its compact structure and high torque output.

Technical Parameter

	THD180
Ratio	Single stage 15/21/30Double stage 60/75/105/120/150/210/300
Rated output torque	Single stage 150/130/105Double stage 150/150/150/150/150/130/105
Maximum output torque	3x rated torque
Positioning accuracy	≤2arc-min Single stage
	≤4arc-min  Double stage
Repeated positioning accuracy	≤30arc-sec  Single stage
	≤60arc-sec Double stage
Bearing structure	Cross Roller Bearing
Permissible disc speed	200r pm(Intermittent operation)
Adaptive servo motor	200-400W
Adapt to stepper motors	57stepper
Allowable axial load	7300N
Permissible radial load	7300N
Design load-bearing capacity	50KG
Allowable moment of inertia	150Nm
Torsion rigidity	25Nm/arcmin
Overturning moment	520Nm
Precision lifespan	20000h(Intermittent operation)
Protection level	IP54
Lubrication method	Long lasting lubrication
Installation method	arbitrarily
Concentricity of rotating platform	≤0.01
Parallelism of rotating platform	≤0.01
Transmission efficiency	Single stage 95%  Double stage90%
Noise	≤63dB
Weight	Single stage 17KG  Double stage19KG

Hollow Rotary Actuator Construction

The Hollow Rotary Actuator is made up of several components:

1. Crossed roller bearing: This component allows the actuator to withstand high axial loads and tilting moments during operation.
2. Precision gears: These gears are designed to provide high torque output with low backlash.
3. Input mounting flange: This component is used to connect the actuator to the driving source.
4. Input shaft: The input shaft transmits power from the driving source to the actuator.
5. Sensor device: This component provides feedback on the actuator's rotational position to the control system.

Each component serves a specific function and is critical to ensuring the actuator operates correctly.

Hollow Rotary Actuator Working Principle

The Hollow Rotary Actuator works based on the following principles:

1. Driving Source: The actuator is typically powered by a motor, such as a servo motor, stepper motor, or DC motor. The motor converts electrical energy into mechanical energy, which is transmitted to the transmission system through the input shaft.
2. Transmission Mechanism: The transmission system usually consists of 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 the sun gear. These planetary gears rotate around the internal gear while also self-rotating, which reduces the rotational speed and increases the torque output. This design allows the hollow rotary actuator to provide high torque output while maintaining a compact structure size.
3. Hollow Shaft Design: The actuator's core feature is its internal hollow rotating shaft, which allows cables, fluid lines, or other necessary components to pass through the axis without affecting the actuator's rotational function.
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 actuator's rotational angle in real-time and transmit the data back to the control system to form a closed-loop feedback mechanism, ensuring the actuator accurately moves to the target position.
5. Application Load: The actuator's output end is connected to the load that needs to be rotated through a flange or other interface, such as a robotic joint, radar antenna, or medical equipment. This allows the load to perform precise continuous or intermittent rotation operations.

The above principles allow the Hollow Rotary Actuator to provide high torque output while maintaining a compact structure size, making it ideal for various applications.

Hollow Rotary Actuator Design and Selection Considerations

Consideration	Description
Load Capacity	The maximum weight that the actuator can support and rotate
Rotational Speed	The maximum and minimum speed range required for the application
Accuracy	The level of accuracy required for the application
Torque	The torque required to rotate the load
Environmental Conditions	The operating environment such as temperature, humidity, and vibration
Mounting	The method of attaching the actuator to the driving source and the load

Hollow Rotary Actuator Applications

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

1. Robotics: Used in robotic arms, legs, grippers, and other joints to provide precise rotational movement.
2. Aerospace: Used in satellite positioning, solar panel tracking systems, and radar systems.
3. Medical Devices: Used in diagnostic imaging, surgical instruments, and therapy devices.
4. Military Equipment: Used in missile guidance systems, unmanned aerial vehicles, and radar systems.
5. Optical Instruments: Used in telescopes, cameras, and laser cutting systems.
6. Industrial Automation: Used in conveyor systems, assembly lines, and packaging equipment.

About Our Company

We are a modern enterprise that specializes in the research, development, design, manufacture, sale, and service of servo electric cylinders, servo presses, electric pushrods, electric slide tables, and multi-degree-of-freedom platforms. Our company has a professional design team, processing team, assembly team, sales, and after-sales service team. We always uphold the principles of "integrity, sincerity, stability, and compliance" to create carefully designed, finely manufactured, and exquisitely produced products with sincere service.Author: Miya