Product Description
| Size | 8 Inch Disc Brake | Size | 8 Inch Electronic Brake | |
| Rated Voltage | 36VDC | Rated Voltage | 36VDC | |
| Rated Current | 12A | Rated Current | 8A | |
| Rated Speed | 700 ±5% | Rated Speed | 680 ±5% | |
| Rated Power | 350W | Rated Power | 250W | |
| Rated Torque | 4N.m | Rated Torque | 5N.m | |
| Efficiency | ≥83% | Efficiency | ≥82% | |
| Size | 8 Inch Drum Brake | Size | 8 Inch Gear Motor | |
| Rated Voltage | 36VDC | Rated Voltage | 24VDC | |
| Rated Current | 12A | Rated Current | 11A | |
| Rated Speed | 730 ±5% | Rated Power | 250W | |
| Rated Power | 350W | Rated Torque | 12N.m | |
| Rated Torque | 5N.m | Efficiency | ≥81% | |
| Efficiency | ≥81% |
Factory and qualification
FAQ
Q: What is your company doing and where is your company?
A: HangZhou RoboCT Technological Development Co., Ltd. is dedicated to providing the disabled, the elderly and medical Rehabilitation institutes with intelligent rehabilitation devices, rehabilitation assistance and smart solutions through combining Artificial Intelligence (AI)and robotic Technology with data analysis and cloud computing. It aims to promote medical.Rehabilitation and drive the pension industry with benefiting the disabled and people with mobility impairments as its own goal. It also involves the research and products development of exoskeleton technology in several fields such as entertainment, industry and sports.
Q: What’s the difference between you and other businesses?
A: Our company has a professional design team, one-stop logistics installation team, and worry free after-sales service to provide you with convenient, safe and worry free one-stop home decoration service
Q: What are the payment methods?
A: We provide you with the bank counter transfer payment, POS machine credit card payment, cash payment and other ways
Q: What is the payment process?
A: The main process is setting dimension – scheme analysis – scheme making – determining scheme – order processing – network query – order production – Logistics Delivery
Q: What services do you all provide?
A: We provide necessary installation, configuration, simple maintenance and technical support services within our capabilities.
Q: What is the corporate of your company?
In2018, RoboCT Technology has obtained Pre-A Round Financing and introduced industrial investors. The inflow off resources has jump-start the company. The corporate culture of RoboCT Technology is “solving problems, trusting each other and keeping pace with the times” which is kept in mind by all the staff. We work to broaden humans’ perception and expand physical fitness, satisfy people’s key demands for convenient moving and a free life and loyal to the corporate vision.
Q: What is the Corporate Vision of your company?
A: Besides, we strive to improve technology and broad envision with the times, keep Leading the technology to provide better robotic products. We stick to meticulously researching and eveloping in intelligent technology. That means we will better user experience through humanistic care and persistently enhance the industry chain of exoskeleton technology. All these efforts will pave the way for us to become a leading enterprise in terms of exoskeleton around the globe. The CHINAMFG of AI has arrived, and the future is bound to be a time when humans integrate with machines. Therefore, exoskeleton must be another accessory organ for humans. All in all, a small step taken by RoboCT Technology to develop exoskeleton technology is a giant leap for mankind
Q: Whether the product can be customized?
A: Of course, we accept customized products, as long as you put CHINAMFG the demand, we will do our best.
Q: How to offer aftersales service?
A: Please contact our after-sales service personnel who will try their best to solve your after-sales problems.
Q: How can I get a quote?
A: Contact the sales, it’s necessary to know your company and project info before giving a quote, RoboCT have standard questions for you to reply. You can also email us.
Q: What’s your company advantages?
A: High cost-effective goods, high-level technology products and perfect after-sales service.
| Application: | Industrial, Power Tools, Robot |
|---|---|
| Operating Speed: | Low Speed |
| Function: | Control |
| Casing Protection: | Closed Type |
| Number of Poles: | 10 |
| Structure and Working Principle: | Brushless |
| Customization: |
Available
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What is a DC motor, and how does it differ from other types of electric motors?
A DC (Direct Current) motor is an electric motor that converts electrical energy into mechanical motion. It operates based on the principle of electromagnetic induction and the interaction between current-carrying conductors and magnetic fields. DC motors are widely used in various applications due to their simplicity, controllability, and versatility. Here’s a detailed explanation of what a DC motor is and how it differs from other types of electric motors:
1. Basic Operation:
In a DC motor, electrical energy is supplied to the motor’s armature through a DC power source, typically a battery or a rectified power supply. The armature consists of multiple coils or windings that are evenly spaced around the motor’s rotor. The rotor is a cylindrical core with a shaft that rotates when the motor is energized. When current flows through the armature windings, it creates a magnetic field that interacts with the fixed magnetic field produced by the motor’s stator. This interaction generates a torque, causing the rotor to rotate.
2. Commutation:
DC motors employ a commutator and brushes for the conversion of electrical energy and the rotation of the rotor. The commutator consists of a segmented cylindrical ring attached to the rotor shaft, and the brushes are stationary conductive contacts that make contact with the commutator segments. As the rotor spins, the brushes maintain contact with the commutator segments, periodically reversing the direction of the current flow in the armature windings. This reversal of current flow in the armature windings ensures continuous rotation of the rotor in the same direction.
3. Types of DC Motors:
DC motors can be classified into different types based on their construction and the method of field excitation. The two main types are:
- Brushed DC Motors: Brushed DC motors have a mechanical commutator and brushes to switch the current direction in the armature windings. These motors are relatively simple, cost-effective, and offer good torque characteristics. However, the commutator and brushes require regular maintenance and can generate electrical noise and brush wear debris.
- Brushless DC Motors (BLDC): Brushless DC motors, also known as electronically commutated motors (ECMs), use electronic circuits and sensors to control the current flow in the motor windings. They eliminate the need for brushes and commutators, resulting in reduced maintenance and improved reliability. BLDC motors offer higher efficiency, smoother operation, and better speed control compared to brushed DC motors.
4. Speed Control:
DC motors provide excellent speed control capabilities. By adjusting the voltage applied to the motor, the speed of the DC motor can be regulated. Lowering the voltage reduces the motor’s speed, while increasing the voltage increases the speed. This feature makes DC motors suitable for applications that require precise speed control, such as robotics, conveyor systems, and electric vehicles.
5. Advantages and Disadvantages:
DC motors have several advantages, including:
- Simple construction and easy maintenance (for brushed DC motors).
- High starting torque.
- Precise speed control.
- Good controllability over a wide range of loads.
However, DC motors also have some limitations, such as:
- Brushed DC motors require periodic maintenance and have limited brush life.
- Brushed DC motors can generate electrical noise.
- Brushless DC motors are often more expensive compared to brushed DC motors.
6. Differences from Other Electric Motors:
DC motors differ from other types of electric motors, such as AC (Alternating Current) motors, in several ways:
- Power Source: DC motors require a DC power source, while AC motors operate from an AC power supply.
- Speed Control: DC motors offer precise speed control by adjusting the applied voltage, whereas AC motors typically rely on frequency control for speed regulation.
- Construction: DC motors use a commutator and brushes (in brushed DC motors) or electronic commutation (in brushless DC motors), while AC motors do not require commutation.
- Starting Torque: DC motors typically provide higher starting torque compared to AC motors.
Overall, DC motors are versatile and widely used in various applications due to their controllability, speed regulation capabilities, and simplicity. The advancements inpower electronics and motor control technologies have further enhanced the performance and efficiency of DC motors, making them a popular choice in many industries.
What role does commutation play in the operation of a DC motor?
In the operation of a DC (Direct Current) motor, commutation plays a crucial role in ensuring the continuous rotation of the motor and the conversion of electrical energy into mechanical motion. It is the process by which the direction of the current in the armature winding is periodically reversed to maintain a constant torque and facilitate the rotation of the motor. Here’s a detailed explanation of the role of commutation in the operation of a DC motor:
Commutation is necessary in a DC motor because the magnetic field generated by the armature winding needs to be constantly aligned with the stator’s magnetic field for efficient torque production. The stator of a DC motor typically consists of permanent magnets or electromagnets that create a fixed magnetic field. The armature winding, located on the rotor, produces a magnetic field that interacts with the stator’s field to generate torque.
The commutation process is achieved through the use of a commutator and brushes. The commutator is a cylindrical ring with multiple segments, while the brushes are conductive contacts that make physical contact with the commutator segments. The armature winding is connected to the commutator, and as the rotor spins, the brushes maintain contact with different segments.
As the rotor rotates, the commutator and brushes ensure that the direction of the current in the armature winding is reversed at specific intervals. This reversal of current flow is necessary to maintain a consistent torque in the same rotational direction. Without commutation, the torque generated by the motor would fluctuate in both magnitude and direction, leading to instability and erratic motor behavior.
The commutation process involves two stages: mechanical commutation and electrical commutation.
1. Mechanical Commutation: As the rotor rotates, the brushes make contact with different segments of the commutator. The segments are insulated from each other to prevent short circuits. When the brushes move from one segment to another, the current flowing through the armature winding is switched to a different coil or set of coils. This mechanical switching ensures that the magnetic fields produced by the winding are properly aligned with the stator’s field, resulting in continuous torque production.
2. Electrical Commutation: The reversal of current in the armature winding is achieved through electrical commutation. When the brushes make contact with a new commutator segment, the current flow in the winding is redirected to maintain the desired torque direction. The timing and sequence of the current reversal are critical to ensure smooth and efficient motor operation.
The commutation process in a DC motor is a dynamic and continuous operation. It allows for the conversion of electrical energy into mechanical motion by providing a consistent torque output. The efficiency and performance of the motor are greatly influenced by the quality and effectiveness of the commutation process.
In summary, commutation plays a vital role in the operation of a DC motor by ensuring the continuous rotation of the motor and the production of consistent torque. It involves the mechanical and electrical switching of the current direction in the armature winding, facilitated by the commutator and brushes.
Are there safety considerations or maintenance practices associated with DC motors?
Yes, there are safety considerations and maintenance practices associated with DC (Direct Current) motors. DC motors, like any other electrical equipment, require proper handling, maintenance, and adherence to safety guidelines to ensure safe operation and longevity. Here’s a detailed explanation of the safety considerations and maintenance practices associated with DC motors:
Safety Considerations:
Electrical Hazards: DC motors operate with high voltages and currents, posing electrical hazards. It is essential to follow proper electrical safety practices, such as wearing appropriate personal protective equipment (PPE) and ensuring that electrical connections are secure and insulated. Proper grounding and isolation techniques should be employed to prevent electrical shocks and accidents.
Lockout/Tagout: DC motors, especially in industrial settings, may require maintenance or repair work. It is crucial to implement lockout/tagout procedures to isolate the motor from its power source before performing any maintenance or servicing activities. This ensures that the motor cannot be accidentally energized during work, preventing potential injuries or accidents.
Overheating and Ventilation: DC motors can generate heat during operation. Adequate ventilation and cooling measures should be implemented to prevent overheating, as excessive heat can lead to motor damage or fire hazards. Proper airflow and ventilation around the motor should be maintained, and any obstructions or debris should be cleared.
Mechanical Hazards: DC motors often have rotating parts and shafts. Safety guards or enclosures should be installed to prevent accidental contact with moving components, mitigating the risk of injuries. Operators and maintenance personnel should be trained to handle motors safely and avoid placing their hands or clothing near rotating parts while the motor is running.
Maintenance Practices:
Cleaning and Inspection: Regular cleaning and inspection of DC motors are essential for their proper functioning. Accumulated dirt, dust, or debris should be removed from the motor’s exterior and internal components. Visual inspections should be carried out to check for any signs of wear, damage, loose connections, or overheating. Bearings, if applicable, should be inspected and lubricated as per the manufacturer’s recommendations.
Brush Maintenance: DC motors that use brushes for commutation require regular inspection and maintenance of the brushes. The brushes should be checked for wear, proper alignment, and smooth operation. Worn-out brushes should be replaced to ensure efficient motor performance. Brush holders and springs should also be inspected and cleaned as necessary.
Electrical Connections: The electrical connections of DC motors should be periodically checked to ensure they are tight, secure, and free from corrosion. Loose or damaged connections can lead to voltage drops, overheating, and poor motor performance. Any issues with the connections should be addressed promptly to maintain safe and reliable operation.
Insulation Testing: Insulation resistance testing should be performed periodically to assess the condition of the motor’s insulation system. This helps identify any insulation breakdown or degradation, which can lead to electrical faults or motor failures. Insulation resistance testing should be conducted following appropriate safety procedures and using suitable testing equipment.
Alignment and Balance: Proper alignment and balance of DC motors are crucial for their smooth operation and longevity. Misalignment or imbalance can result in increased vibrations, excessive wear on bearings, and reduced motor efficiency. Regular checks and adjustments should be made to ensure the motor is correctly aligned and balanced as per the manufacturer’s specifications.
Manufacturer’s Recommendations: It is important to refer to the manufacturer’s guidelines and recommendations for specific maintenance practices and intervals. Each DC motor model may have unique requirements, and following the manufacturer’s instructions ensures that maintenance is carried out correctly and in accordance with the motor’s design and specifications.
By adhering to safety considerations and implementing proper maintenance practices, DC motors can operate safely, reliably, and efficiently throughout their service life.
editor by CX 2023-12-01