Apparatus for simultaneously measuring vibration and rotation speed of traction motor and method thereof
A traction motor, rotational speed technology, used in measuring devices, internal combustion engine testing, railway vehicle testing, etc., can solve problems such as reading time gaps and inability to obtain accurate vibration values
Inactive Publication Date: 2009-02-04
KOREA RAILROAD RES INST
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This has the following problem, that is, because there is a gap in the reading time of speed and vibration, it is impossible to obtain an accurate vibration value corresponding to a certain speed value
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] The present invention will now be further described by way of example embodiments with reference to the accompanying drawings.
[0019] Figure 2 shows a block diagram of a device that simultaneously measures the vibration and rotational speed of a traction motor.
[0020] The equipment for simultaneously measuring the vibration and rotational speed of the traction motor includes: a rotational speed sensor 12 installed on the traction motor 10; a frequency / speed converter 14 for converting the pulse frequency transmitted from the rotational speed sensor 12 into a rotational speed value; the rotational speed A / D converter 15, is used for converting the rotating speed value transmitted from frequency / speed converter 14 into digital value; Vibration meter 13, is used for measuring the vibration of traction motor 10; The vibration value transmitted by the meter 13 is converted into a digital value; the cache memory 17 is used to store the digital value of the rotational spe...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An apparatus for measuring simultaneously vibration and rotation speed of traction motor is disclosed. An apparatus for measuring simultaneously vibration and rotation speed of traction motor comprises a rotation speed sensor installed on a traction motor, a frequency / rotation speed converter for converting a frequency of pulse transferred from the rotation speed sensor into a value of the rotation speed, a rotation speed analog-to-digital (A / D) converter for converting the value of the rotation speed transferred from the frequency / rotation speed converter into a digital value, a vibration sensor for measuring a vibration of the traction motor, a vibration analog-to-digital (A / D) converter for converting a value of a vibration transferred from the vibration sensor into a digital value, a buffer for storing the digital value of both rotation speed and vibration transferred from the rotation and vibration A / D converter, a controller for reading the digital value of both rotation speed and vibration stored on the buffer and for storing the digital value as well as a time to read the digital value, and displaying simultaneously the value of the rotation speed and the vibration stored on the memory unit in a time according to a display signal transferred from the key input unit, a display unit for displaying the measured value of both rotation speed and vibration according to the display control signal of the controller, and a key input unit for inputting command and data into the controller. Therefore, the values of both rotation speed and vibration are simultaneously displayed. Since vibration can be accurately measured at a specific speed, vibration pattern by rotation speed can be accurately analyzed.
Description
technical field [0001] The invention relates to a device and method for simultaneously measuring the vibration and rotation speed of a traction motor. More specifically, the present invention relates to an apparatus and method for simultaneously measuring vibration and rotational speed of a traction motor, wherein a vibration sensor and a rotational speed sensor are mounted on the traction motor, and respective values detected from the two sensors are simultaneously stored on the buffer, and read the stored value, so that the vibration and rotation speed measured simultaneously can be displayed. Background technique [0002] Traction motors, which provide propulsion for electric locomotives, generate torque through electromagnetic forces applied to conductors through which current flows in a magnetic field. The torque of the traction motor induces vibrations, and such vibrations have a negative effect on stability and ride comfort. [0003] Therefore, the vibration at ea...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/12G01M17/08G01M13/02
CPCG01M15/12G01M13/028
Inventor 白珖瑄李刚远郑钟德
Owner KOREA RAILROAD RES INST