Background technology
In the Ship Power Equipment; Axle system is power and the airscrew thrust that is used for transmitting main frame; It is arranged between the output terminal and screw propeller of main frame, includes the transmission shaft of transmission main engine power, for example thrust axis, intermediate shaft, tailing axle, propeller shaft etc.; With bearing and other annex of supporting drive shaft, there are characteristics such as size is big, complex structure.The marine shafting vibration fault can cause the damage of parts such as marine main engine, bearing, screw propeller, therefore, need carry out vibration-testing to the marine shafting parts before using.
The marine shafting vibration comprises twisting vibration, horizontal shaking and longitudinal vibration, is difficult in the laboratory carry out experimental study according to real ship layout and pattern.And present already present shafting vibration experimental system all can not be used to carry out comprehensive shafting vibration experiments.
Summary of the invention
The utility model technical matters to be solved is that the present situation to prior art provides and can carry out torsional oscillation, longitudinal vibration and the horizontal marine shafting vibration testing device that shakes test and can in the laboratory, use synchronously.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this marine shafting vibration testing device; It is characterized in that comprising the driving mechanism that drives shaft components to be measured; Be arranged on the lip-deep horizontal vibration sensor of said shaft components axle to be measured, be arranged on the longitudinal vibration sensor on the shaft components end face to be measured and be arranged on the lip-deep commentaries on classics mark that is used to calculate said shaft components slewing rate to be measured of axle of shaft components to be measured, also be provided with the torsional oscillation sensing part that is used to experience and transmit the twisting vibration of shaft components to be measured on the axle surface of said shaft components to be measured.
Have gear member on the described shaft components to be measured, described torsional oscillation sensing part is the Hall element that is arranged on the gear of said shaft components to be measured.This structure is fit to have the shaft components of gear.
Have the end face flange on the described shaft components to be measured, described torsional oscillation sensing part comprises the output flange that is connected with said end face flange and is arranged on the scrambler on this output flange; Described longitudinal vibration sensor also is arranged on this end face flange.
Described shaft components to be measured is a rod-like structure, and described torsional oscillation sensing part comprises belt pulley and be arranged on the scrambler on the said belt pulley end face that described belt pulley is in transmission connection through belt and described shaft components to be measured.This structure is fit to the shaft components of light face transmission shaft lever structure.
Compared with prior art; But the marine shafting vibration testing device that the utility model provides a kind of comprehensive, complete laboratory to use; Have simple in structure, advantages such as experiential function is comprehensive, vibration signal is adjustable, real-time, convenient post-treatment, satisfy the needs of aspects such as experiment and teaching; The experimental provision that preferred version provided can carry out the torsional oscillation experiment to the shaft components of different structure.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, this marine shafting vibration testing device comprises:
Electric motor assembly 1 is used to drive electrical measurement shaft components 2 and rotates.
Shaft components 2 to be measured is equipped with multiple structure according to different purposes and installation position, come to divide according to structure to mainly contain three types, and the one, have the parts of gear, the one, have the parts of end cap flange, another is exactly simple rod-like structure.Above-mentioned three kinds of structures are employed, and horizontal to shake with the longitudinal vibration pick-up unit be identical, but be different to the detection of torsional oscillation.Describe in detail respectively below.
For the shaft components to be measured of above-mentioned three kinds of structures, its horizontal vibration sensor 3 all is mounted on the axial sides of axostylus axostyle, and the output terminal of horizontal vibration sensor 3 connects the data processing module (not shown).
Test the torsional oscillation of shaft components to be measured to having the shaft components to be measured 2 of gear 13, can adopt the Hall element 4 that is arranged on the gear 13, the output terminal of Hall element 4 also is to be connected to data processing module.
For the shaft components to be measured of simple rod-like structure, the test of its torsional oscillation need be by realizing through belt pulley 5.Belt 6 is looped around on belt pulley 5 and the shaft components to be measured, through belt 6 rotation of shaft components to be measured is passed to belt pulley 5; The end face of belt pulley 5 is provided with scrambler 7, and the output terminal of this scrambler 7 connects data processing module.
The shaft components to be measured of above-mentioned two kinds of structures, its longitudinal vibration sensor 8 can be arranged on the end face of shaft components to be measured.The output terminal of longitudinal vibration sensor 8 connects data processing module.
For the shaft components to be measured 2 that has end face flange 9, end face flange 9 connects output flange 12, and output flange 12 is provided with scrambler 10, and the output terminal of this scrambler 10 connects data processing module.Longitudinal vibration sensor 8 also is arranged on the output flange 12.
Change mark 11, be arranged on the axial plane of shaft components to be measured, be used to measure the rotation number of turns of shaft components to be measured, the slewing rate that promptly is used to measure shaft components to be measured.
During test, for the shaft components to be measured that has gear, its torsional oscillation experiment realizes through Hall element.For the shaft components to be measured of simple shaft configurations, transfer torque to belt pulley, scrambler 7 through belt, accomplish the experiment of torsional oscillation in conjunction with changeing mark 11.For the shaft components to be measured that has the end face flange, its torsional oscillation experiment combines to change mark 11 through output flange 12, scrambler 10 and accomplishes.
The vibration signal of above-mentioned shaft components to be measured is delivered to data processing module through the collection of sensor and/or scrambler, and the signal after the processing shows on computers, preservation and aftertreatment.
This marine shafting vibration testing device has simple in structure, advantages such as experiential function is comprehensive, vibration signal is adjustable, real-time, convenient post-treatment, satisfies the needs of aspects such as experiment and teaching fully.