Coal terminal company: motor coupling of the method

Coal terminal company: has the motor coupling method is 2020 - 03 - 19 tianjin port 1 motor on the importance of the motor is widely used in port machinery equipment, is one of the most important power source in port equipment. Three-phase asynchronous motor because of its rapid speed usually use reducer, motor and reducer can't very well to often makes the service life of the motor and reducer greatly reduced. Motor coupling connection of two axis rotation center should strictly concentric, coupling must accurately find is when installation, on, or will cause a lot of stress on coupling, and will severely affect the shaft, bearing and shaft on the normal work of the other parts, or even cause the vibration of the whole machine and base or damage, etc. Therefore, motor coupling to find it is very important in the process of installation and maintenance work. 2 coupling is find migration situation analysis when installing a new motor, the coupling between the end face and axis perpendicularity can not checked, but installed the old motor, be sure to check carefully and found no vertical to adjust the vertical alignment of the reentry after. In general, there are four kinds of situations that you might encounter. 1) S1 = S2, a1 = a2 two and a half back wheel face is the correct position in both parallel and concentric, then two axis must be located on a straight line. 2) S1, S2, a1≠ A2 two and a half back end but not parallel to the axis of the heart, then have a parallel between the two axis radial displacement e = ( a2 - a1) / 2. 3) S1≠ S2, a1 = a2 two and a half back wheel face although concentric but not parallel, angular between the two axis displacement & alpha; 。 4) S1≠ S2, a1≠ A2 two and a half back wheel face is different heart and not parallel, there are both e radial displacement and Angle between two axes to displacement & alpha; 。 Coupling in the first kind of circumstance is we looking for the efforts to achieve status, while the second, three, four kinds of condition is not correct, we need to adjust, to the first kind of circumstance. When the installation of the equipment, first turn on the reducer is installed, make its axis in a horizontal position, and then install the motor, so look for timing only need to adjust the motor, that is, at the foot of a motor with surface plus adjusting pad method to adjust below. 3 for timing measurement adjustment method introduces commonly used in the process of maintenance under the three methods of measuring adjustment, according to different measuring tools can be divided into: 1) Using the knife ruler and feeler coupling different heart and use wedge gap rail or feeler end of the coupling is not parallel, this method is suitable for low speed and precision of the elastic coupling equipment requirements is not high. 2) By using dial indicator and special alignment tool measuring table frame or two different coupling of heart and not parallel, this method is suitable for high speed, rigid connection and high accuracy requirement of rotating equipment. 3) To take advantage of professional instrument. Of the instrument is a kind of testing instrument, connected to the relative position precision of the equipment installation for testing and adjusting, testing equipment components between the position is in the design of tolerance. Use of the instrument can be quickly adjusted data, suitable for high speed, rigid connection and high accuracy requirement of rotating equipment. From: WeChat ID 'tianjin port TIANJINPORT' ( tjgwxpt)