Product Description

Aluminum Encoder Coupling Beam Coupling

 

Description of Aluminum Encoder Coupling Beam Coupling

1. One-piece metallic beam coupling
2. Zero backlash, flexible shaft
3. Spiral and parallel cut designs available
4. Accommodates misalignment and shaft endplay
5. Identical clockwise and counterclockwise rotation
6. Available in aluminum or stainless steel
7. Multiple bore and shaft connecting configurations
 

Parameter of Aluminum Encoder Coupling Beam Coupling

Model	D (mm)	L (mm)	d1-d2 (mm)	hex screw	L1 (mm)	L2 (mm)	L3 (mm)	Fasten Torque (n.m)
LR-D-D15L20	15	20	3.0-8.0	M3.	2.5	2	0.4	1.2
LR-D-D19L25	19	25	6.0-10.0	M3.	3	2	0.4	1.2
LR-D-D25L30	25	30	8.0-12.0	M4	4	2	0.4	2.5
LR-D-D30L35	30	35	8.0-18.0	M4	4	2.5	0.5	2.5
LR-D-D35L40	35	40	8.0-22.0	M5	5	2.5	0.5	5
LR-D-D40L45	40	45	10.0-28.0	M6	6	3.5	0.6	8

Model	Max bore (mm)	Rated Torque (n.m)	Max Torque (n.m)	Max speed (rpm)	Moment of Inertia (kg.m2)	Permissible Radial Deviation (degree)	Permissible Angular Deviation (degree)
LR-D-D15L20	8	0.5	1	30000	2.5*10-7	0.05	0.5
LR-D-D19L25	10	1	2	25000	5.8*10-7	0.05	0.5
LR-D-D25L30	12	1.5	3	18000	1.8*10-6	0.05	0.5
LR-D-D30L35	18	2	4	16000	4.7*10-6	0.05	0.5
LR-D-D35L40	22	3	6	14000	1.1*10-5	0.05	0.5
LR-D-D40L45	28	6	12	12000	2.3*10-5	0.05	0.5

Model	D (mm)	L (mm)	d1-d2 (mm)	Fasten Torque (n.m)
LT-D-D15L20	15	20	4.0-5.0	0.7
LT-D-D19L25	19	25	6.0-10.0	0.7
LT-D-D25L30	25	30	8.0-12.0	0.7
LT-D-D30L35	30	35	8.0-18.0	1.7
LT-D-D35L40	35	40	8.0-22.0	4
LT-D-D40L45	40	45	10.0-28.0	4

Model	Max bore (mm)	Rated Torque (n.m)	Max Torque (n.m)	Max speed (rpm)	Moment of Inertia (kg.m2)	Permissible Radial Deviation (degree)	Permissible Angular Deviation (degree)
LT-D-D15L20	5	0.5	1	30000	2.5*10-7	0.05	0.5
LT-D-D19L25	10	1	2	25000	5.8*10-7	0.05	0.5
LT-D-D25L30	12	1.5	3	18000	1.8*10-6	0.05	0.5
LT-D-D30L35	18	2	4	16000	4.7*10-6	0.05	0.5
LT-D-D35L40	22	3	6	14000	1.1*10-5	0.05	0.5
LT-D-D40L45	28	6	12	12000	2.3*10-5	0.05	0.5

 

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Contribution of Beam Couplings to Dampening Vibrations and Reducing Resonance

Beam couplings play a significant role in dampening vibrations and reducing resonance in motion control systems. Their unique design and material properties contribute to this effect in the following ways:

• Helical Beam Design:

  Beam couplings consist of helical beams that provide flexibility and torsional elasticity. When subjected to vibrations or dynamic loads, the helical beams can absorb and dampen these oscillations. The ability to flex and twist helps in dissipating vibrational energy and preventing it from propagating through the system.

• Vibration Absorption:

  Beam couplings are designed to be relatively compliant, which allows them to absorb vibrations and shocks generated during operation. This absorption capability is especially beneficial when dealing with high-speed applications or systems with rapid accelerations and decelerations.

• Reduced Resonance:

  Resonance occurs when the natural frequency of a system matches the frequency of external vibrations or disturbances. This phenomenon can lead to excessive vibration amplitudes, potentially causing damage or affecting the system’s performance. Beam couplings’ torsional elasticity helps to mitigate the risk of resonance by altering the system’s natural frequency, reducing the likelihood of resonance occurring within the operating range.

• Material Selection:

  The choice of materials for beam couplings also contributes to their ability to dampen vibrations. Materials with good damping characteristics, such as certain alloys or elastomers, are commonly used to manufacture beam couplings. These materials can dissipate vibrational energy as heat, minimizing the transmission of vibrations to other system components.

• Shock Absorption:

  In addition to dampening vibrations, beam couplings can absorb shocks or sudden impact loads. When the system experiences sudden changes in load or abrupt movements, the flexible nature of beam couplings helps to cushion and distribute the shock, protecting the machinery and reducing stress on the connected components.

Overall, the combination of the helical beam design, vibration absorption properties, reduced resonance, and appropriate material selection makes beam couplings effective in dampening vibrations and enhancing the overall stability and performance of motion control systems. When properly selected and installed, beam couplings can contribute to smoother and quieter operation, increased system reliability, and reduced wear and tear on critical components.

Real-World Examples of Successful Beam Coupling Installations and Their Benefits

Beam couplings have been widely adopted in various industries, and there are numerous real-world examples of successful installations showcasing their benefits. Here are some specific cases:

• Industrial Automation:

  In a factory automation setting, beam couplings are used in robotic arms and automated machinery to transmit torque between motors and actuators. The flexibility of beam couplings helps compensate for minor misalignments, reducing wear on connected components and enhancing system reliability. Additionally, the low inertia of beam couplings enables faster response times, improving the overall efficiency of the automated systems.

• Medical Robotics:

  Medical robots, such as surgical robots and diagnostic equipment, rely on precise and smooth motion control. Beam couplings, with their low backlash and high torsional stiffness, ensure accurate positioning and reduced vibration. The stainless-steel construction of some medical-grade beam couplings makes them suitable for sterilization processes, ensuring compliance with medical industry requirements.

• Photonic Systems:

  In optical systems and laser equipment, beam couplings are used to connect stepper motors and motion stages. The damping properties of beam couplings help reduce vibrations, preventing optical misalignment and maintaining the stability of laser beams. This is critical for high-precision applications like laser cutting and micromachining.

• Satellite Components:

  Beam couplings find applications in satellite components, where weight and size constraints are critical. Aluminum or lightweight alloys are used to minimize the overall mass while providing reliable power transmission between actuators and mechanisms. The low inertia of beam couplings contributes to smoother satellite movements and precise adjustments in space.

• Renewable Energy Systems:

  Beam couplings are employed in renewable energy systems, such as solar tracking mechanisms and wind turbine pitch control systems. Their ability to handle harsh environmental conditions, such as wind and weather exposure, ensures consistent and efficient energy production. The use of non-magnetic materials in some couplings prevents interference with sensitive electronics.

The benefits of successful beam coupling installations in these real-world examples include:

• Improved Precision: Beam couplings provide accurate torque transmission, reducing positioning errors and enhancing the precision of motion control systems.
• Enhanced Reliability: The flexibility of beam couplings compensates for misalignments, reducing stress on connected components and extending the lifespan of the motion system.
• Reduced Vibrations: Beam couplings dampen vibrations, leading to smoother movements and preventing resonance-induced failures.
• Weight and Space Savings: In applications with weight and space constraints, beam couplings’ lightweight design is advantageous.
• Cost-Effectiveness: Beam couplings offer a cost-effective solution for motion control, especially when compared to more complex coupling options.

These successful installations demonstrate the versatility and effectiveness of beam couplings across various industries, highlighting their ability to improve motion system performance, reliability, and efficiency.

Different Types of Beam Couplings for Various Applications

Beam couplings come in various designs to meet different application requirements. Each type offers specific advantages and limitations. Here are some common types of beam couplings used in various applications:

• 1. Single-Beam Couplings:

  Single-beam couplings consist of a single helical beam that connects the two shafts. They are simple in design and provide good flexibility for compensating angular misalignment. These couplings are ideal for applications where space is limited, and angular misalignment is the primary concern.

• 2. Multi-Beam Couplings:

  Multi-beam couplings have multiple helical beams arranged in parallel around the circumference of the coupling. This design enhances the coupling’s flexibility and allows for better compensation of angular, axial, and parallel misalignment. Multi-beam couplings are commonly used in applications requiring more comprehensive misalignment compensation and smoother torque transmission.

• 3. Bellows Couplings:

  Bellows couplings use a thin-walled, accordion-like metal bellows as the flexible element. This design provides high flexibility, making them suitable for applications with significant angular and axial misalignment. Bellows couplings are also effective at damping vibrations and providing precise motion control in sensitive systems.

• 4. Servo Disc Couplings:

  Servo disc couplings consist of a series of thin metal discs stacked together with a central spacer. This design allows for high torsional rigidity and excellent misalignment compensation. Servo disc couplings are often used in precision applications where minimal backlash and high torque transmission are required.

• 5. Slit Couplings:

  Slit couplings have one or more slits cut into the helical beam, providing additional flexibility. The slits allow for better compensation of misalignment and increased torsional flexibility. Slit couplings are commonly used in applications with moderate misalignment requirements and where vibration dampening is essential.

• 6. Step Beam Couplings:

  Step beam couplings have helical beams with varying thickness along their length. This design provides a progressive flexibility gradient, allowing for smoother torque transmission and better misalignment compensation. Step beam couplings are often used in applications where shock absorption and vibration isolation are crucial.

• 7. Jaw Couplings with Beam Elements:

  Jaw couplings with beam elements combine the features of traditional jaw couplings with the flexibility of beam couplings. They offer excellent misalignment compensation, shock absorption, and easy installation, making them suitable for various power transmission and motion control applications.

The choice of the most suitable beam coupling type depends on the specific requirements of the application, such as the level of misalignment, torque capacity, damping requirements, and the overall system design. Understanding the strengths and limitations of each type will help in selecting the best beam coupling for a particular application, ensuring efficient and reliable performance in various mechanical systems.

editor by CX 2024-04-26