Shenzhen · China

Address: 4A, Building 1, Area B, No. 1, Shajing Road, Dawangshan, Shajing Town, Baoan District, Shenzhen, (opposite Huasheng Daxia)

Advantages and Classification of Direct Drive Motors

Date： 2018-12-25

Share to：

First, what is a direct drive motor?

Direct drive motor is a kind of direct drive motor which can directly convert electric energy into motion mechanical energy without any intermediate conversion mechanism and directly drive load. This kind of motor adopts 'direct drive technology'.

2. Advantages of Direct Drive Motor

1. Direct drive. The rigid connection between the motor and the driven workpiece directly avoids the problems of reverse clearance, inertia, friction and insufficient rigidity in the transmission system of the transmission screw, without the intermediate links such as screw, gear, reducer and so on.

2. High speed. The normal peak speed of linear motor can reach 5-10m/s; the traditional ball screw, whose speed is generally limited to 1m/s, produces higher wear.

3. High acceleration. Because there is no contact friction between the stator and the rotor, linear motor can achieve higher acceleration; larger linear motor can achieve acceleration of 3-5g, smaller linear motor can achieve more than 30-50g (wire welder); usually DDR is used for high acceleration, DDL is used for high speed and high acceleration.

4. High accuracy. Because of the direct drive technology, the error caused by the intermediate mechanical transmission system is greatly reduced. By using high precision grating detection for position positioning, the system accuracy can be improved, and the repetitive positioning accuracy can be less than 1um, which can meet the application of ultra-precision occasions.

5. Wide range of motion speed. The speed of linear motor can reach 1um/s at the lowest speed and 10m/s at the highest speed to meet the needs of various occasions.

6. Low noise, simple structure, low maintenance cost, dust-free environment and so on.

Classification of Direct Drive Motors

Direct drive motors are mainly divided into linear motor (linear motor), voice coil motor and moment motor (DD motor).

Tongmao Electric Machinery has been specializing in the research and development of linear motor and voice coil motor for 10 years. According to the market demand, it has recently launched the Torque Motor (DD motor). As a professional manufacturer of direct drive motor, Tongmao Electric Machinery is committed to providing customers with appropriate linear movement and high precision linear positioning solutions, significantly improving the power performance of customers'machines and reducing the purchase cost of customers. For more direct drive motor information, please visit Tongmao Electric Machinery's official website.

Previous：How to choose servo motor with reducer?Next：How to understand the working principle

News / More>

Chicago International Automation and Robotics Exhibition 2019

2019 - 01 - 11

The Chicago International Automation and Robot Exhibition (AUTOMATE) is a professional technology trade exhibition sponsored by the American Association of Automation Industries. It is held every two years. Before 2009, the exhibition was called the American Robot and Vision Exhibition. Since 2011, it has been renamed the American Automation and Robot Exhibition. The exhibition has grown into the largest and most important exhibition of robotics and automation technology in North America. Through the biennial opportunity, professionals in robotics automation all over the world are gathered to ...

Exhibits

2019 - 01 - 11

Industrial automation systems: assembly and handling systems, linear positioning systems, control systems, assembly systems, industrial image processing systems, sensors and actuators, industrial computers, embedded systems, measurement and detection systems, industrial automation data analysis and acquisition systems, automation services, industrial number automation systems, safety and security systems, industrial automation information technology Technology and Software, Industrial Information Technology Service System, Connection and Transfer Equipment, Fastening and Connection Equipment, ...

The importance of AC servo motor after sale!

2018 - 12 - 25

Servo motor is mainly used in large-scale mechanical equipment, which is the place to control the movement of the whole mechanical equipment. In this way, the quality and after-sale of servo motor is very important, because once problems arise, it will affect the operation of the entire machinery and equipment, resulting in the decline of the overall efficiency of work!Quality is not much to say, with the progress of domestic science and technology development, servo system has made great progress compared with previous years. Although domestic brands are a little less convenient than imported...

What should we do if we find that the position of stepping motor is not correct?

2018 - 12 - 25

What should we do if we find that the position of stepping motor is not correct?There are generally the following reasons:1. When changing direction, the pulse is lost, which shows that it is accurate in any direction, but when changing direction, it will accumulate deviation, and the more the number of deviations is, the more the deviation is.2. The initial velocity is too high and the acceleration is too high, which sometimes leads to step loss.3. Software compensation is too much or too little when synchronous belt is used.4. Insufficient motor power;5. Misoperation caused by disturbance of...