CN103884501A - Multifunctional rotor test bench - Google Patents
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- CN103884501A CN103884501A CN201410134021.2A CN201410134021A CN103884501A CN 103884501 A CN103884501 A CN 103884501A CN 201410134021 A CN201410134021 A CN 201410134021A CN 103884501 A CN103884501 A CN 103884501A
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Abstract
The invention provides a multifunctional rotor test bench which comprises a shafting misalignment fault simulation mechanism, a moving-static-rub-impact simulation mechanism. The shafting misalignment fault simulation mechanism comprises a motor rotary table, two bearing seats supporting a rotor and a coupler. The motor rotary table is arranged on a base and can drive a motor to rotate by a certain angle. The two bearing seats can drive the rotor to move in the radial direction. The moving-static-rub-impact simulation mechanism comprises a stepped turn plate and a rub-impact frame. The rub-impact frame and the stepped turn plate are adjustable in the axial direction, the stepped turn plate and the rotor are fixed, the rub-impact frame and the base are fixed, the stepped turn plate is provided with a detachable rub-impact bar, and the rub-impact frame is provided with a spring plate and an eddy-current sensor. The coupler comprises a motor end flange disc, a rotor end flange disc and an adjusting block arranged between the motor end flange disc and the rotor end flange disc, and the adjusting block is selected to be used according to simulation states. The multifunctional rotor test bench has the advantages of being multiple in function, wide in application range, and visual in test process, and filling the blank of mechanical rotor composite fault simulation.
Description
Technical field
The present invention relates to a kind of experimental facilities, particularly can simulate axle in various degree system simultaneously and misalign fault, rubbing fault, quality imbalance fault, and the Multifunctional rotor experiment table of the combined failure of any two kinds or three kinds formations in these three kinds of faults.
Background technology
Rotary machine rotor usually there will be some faults in rotation process, and such as axle system misaligns, rubbing, mass unbalance etc.Axle system misalign refer to adjacent two-stage rotor center line not point-blank, produced and tilted or the situation of skew.Misalign be divided into Parallel misalignment, drift angle misaligns, and parallel and drift angle misaligns simultaneously.Rubbing refers to that rotatable parts and stationary parts bump and situation about rubbing, and can be divided into part and touch and rub and two kinds of full annular rubs.Mass unbalance refers to the situation that the barycenter of rotor does not overlap with axle center.Existing rotor experiment table can be realized quality imbalance fault and local simulation of touching the fault of rubbing, but misaligns fault for axle system, and misalign, touch rub, the simulation of combined failure that these three kinds of faults of mass unbalance form is still for blank.Actual rotary machine rotor is the assembled state in various faults often, Given this, develop a kind of practicality easily row, can to these three kinds of faults any, any two, and three kinds of rotor experiment tablees that the state all existing is simulated in various degree, there is positive effect for malfunction test simulation and the later stage research of rotating machinery.
Summary of the invention
The object of the invention is to the drawback for prior art, provide a kind of scope of experiment wide in range Multifunctional rotor experiment table, this experiment table can misalign fault, rubbing fault, quality imbalance fault to axle system in various degree, and the combined failure of the combined formation of this three is simulated.
Problem of the present invention realizes with following technical proposals:
A kind of Multifunctional rotor experiment table, it comprises base, motor, shaft coupling, rotor, by shaft coupling, motor output shaft is connected with rotor, its special feature is: described experiment table is also provided with axle system and misaligns fault simulation mechanism, rubbing simulation mechanism, described axle is to misalign fault simulation mechanism to comprise motor rotating table, the diaxon bearing of support rotor, bearing seat mounting groove, positioning jackscrew, wherein, motor rotating table is positioned on base, motor rotating table can rotate certain angle perpendicular to the rotary middle spindle of base plane setting in drive motor edge, described diaxon bearing can move relative to rotor radial respectively, described rubbing simulation mechanism comprises ladder rotating disk and touches the frame that rubs, touch the frame that rubs, ladder rotating disk axial location is adjustable, ladder rotating disk and rotor are fixed, touching rub frame and base fixes, ladder rotating disk is provided with dismountable rod that rubs that touches, touch the frame that rubs and be provided with latch plate, touch and on the frame that rubs, be also provided with eddy current sensor, described shaft coupling comprises motor side ring flange, rotor-end ring flange and is positioned at above-mentioned between the two according to the adjustment block of emulation mode choice for use.
Above-mentioned Multifunctional rotor experiment table, described ladder rotating disk comprises major diameter dish, minor diameter dish and the shaft collar that diameter reduces successively, on the outer circumference surface of minor diameter dish, spiral shell dress touches the rod that rubs, spiral shell packing quality piece on the end face of minor diameter dish; The upper end of described latch plate with touch the frame that rubs and fix, touching rubs sets up two top wire holes of arranging up and down, latch plate position adjustments jackscrew is through upper top wire hole or lower top wire hole, top latch plate is touched on its top.
Above-mentioned Multifunctional rotor experiment table, described motor and motor rotating table are fixed, motor rotating table is fan-shaped platform, described base is provided with fan-shaped motor rotating table mounting groove, motor rotating table is positioned at motor rotating table mounting groove, described rotary middle spindle is through the geometric center of motor rotating table, motor rotating table and motor rotating table mounting groove are formed to be rotationally connected, the center line of rotary middle spindle aligns with the end position of motor output shaft, motor rotating table is provided with three groups of motor rotating table bolts hole, be respectively two of 0 ° of pilot holes, two of 1 ° of pilot holes, two of 2 ° of pilot holes, each group motor rotating table bolt hole is respectively used to motor rotating table in 0 ° of position of deflection, when 1 ° of position of deflection or 2 ° of positions of deflection and base fastening.
Above-mentioned Multifunctional rotor experiment table, described base is provided with two bearing seat mounting grooves, diaxon bearing bottom is inlaid in respectively in corresponding bearing seat mounting groove, and the two ends of each bearing seat mounting groove are respectively equipped with the positioning jackscrew of adjusting bearing seat radial position, and each bearing seat is fixed through bolt and base.
Above-mentioned Multifunctional rotor experiment table, the motor side ring flange of described shaft coupling is provided with three circle motor side flange connecting holes, the line of centres circle of each circle motor side flange connecting hole is coaxial, and the line of centres radius of a circle that respectively encloses motor side flange connecting hole is followed successively by R1, R2, R3 from small to large; Described rotor-end ring flange is provided with three circle rotor-end flange connecting holes, the line of centres radius of a circle of each circle motor side flange connecting hole is followed successively by R1, R2, R3 from small to large, wherein, 1 millimeter of the center of circle skew of the line of centres circle of the center of circle relative rotor-end ring flange inner ring connecting hole of the line of centres circle of rotor-end ring flange centre circle connecting hole, 2 millimeters of the center of circle skews of the line of centres circle of the center of circle relative rotor-end ring flange inner ring connecting hole of the line of centres circle of rotor-end flange plate outer ring connecting hole; Described adjustment block is three, three adjustment blocks are respectively that both ends of the surface are parallel, both ends of the surface become 1 ° of cone angle to become 2 ° of cone angles with both ends of the surface, three circle adjustment block connecting holes are set in each adjustment block, and the line of centres radius of a circle that respectively encloses adjustment block connecting hole is followed successively by R1, R2, R3 from small to large.
Above-mentioned Multifunctional rotor experiment table, described each bearing seat bottom is respectively equipped with three groups of bearing block bolt holes, two every group; On described each bearing seat mounting groove, be respectively equipped with three groups of bearing seat mounting groove threaded holes, two every group; The centre distance of adjacent shaft bearing bolt hole is a millimeter, and the centre distance of adjacent shaft bearing mounting groove threaded hole is a+1 millimeter.
The present invention is directed to that rotor experiment table is simulated multiple rotor fault and combined fault problem is improved, designed a kind of Multifunctional rotor experiment table.Described Multifunctional rotor experiment table comprises that base, motor, shaft coupling, rotor, axle system misalign fault simulation mechanism, rubbing simulation mechanism.Above-mentioned parts and mechanism are used in conjunction with, can realize axle system is in various degree misaligned to fault, rubbing fault, quality imbalance fault, and the simulation of the combined failure that forms of any two kinds of faults combination in these three kinds of faults or three kinds of faults, fill up the blank of mechanical rotor combined failure simulation.The present invention has the features such as function is many, the scope of application is wide in range, easy and simple to handle, experimentation is directly perceived, and the present invention can be the rotor fault of rotating machinery and analyses in depth, and reliable experimental data is provided.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the assembly relation schematic diagram of bearing seat and bearing seat mounting groove;
Fig. 3 is the matching relationship schematic diagram of motor side ring flange, rotor-end ring flange, adjustment block;
Fig. 4 is the shaft coupling schematic diagram of model rotor normal condition;
Fig. 5 is the shaft coupling schematic diagram of model rotor Parallel misalignment state;
Fig. 6 is the shaft coupling schematic diagram of model rotor drift angle condition of misalignment;
Fig. 7 is the parallel and drift angle of the model rotor shaft coupling schematic diagram of condition of misalignment simultaneously;
Fig. 8 is the vertical view of motor rotating table;
Fig. 9 is rubbing simulation mechanism structural representation.
In figure, each list of reference numerals is: 1, base, 1-1, motor rotating table mounting groove, 1-2, bearing seat mounting groove, 1-2-1, bearing seat mounting groove threaded hole, 2, motor, 3, shaft coupling, 3-1, motor side ring flange, 3-2, rotor-end ring flange, 3-2-1, rotor-end ring flange inner ring connecting hole, 3-2-2, rotor-end ring flange centre circle connecting hole, 3-2-3, rotor-end flange plate outer ring connecting hole, 3-3, adjustment block, 4, rotor, 5, motor rotating table, 5-1, 0 ° of pilot hole, 5-2, 1 ° of pilot hole, 5-3, 2 ° of pilot holes, 6, bearing seat, 6-1, bearing block bolt hole, 7, positioning jackscrew, 8, rotary middle spindle, 9, ladder rotating disk, 9-1, major diameter dish, 9-2, minor diameter dish, 9-3, shaft collar, 9-4, touch the rod that rubs, 9-5, mass, 10, touch the frame that rubs, 10-1, top wire hole, 10-2, latch plate position adjustments jackscrew, 10-3, latch plate, 11, eddy current sensor.
Embodiment
Referring to Fig. 1, the present invention includes base 1, motor 2, shaft coupling 3, rotor 4, axle system misaligns fault simulation mechanism and rubbing simulation mechanism, by shaft coupling, motor output shaft is connected with rotor.Utilize the present invention to test as follows:
One, simulation axle system in various degree misaligns fault within the specific limits;
Two, rubbing in various degree of simulation (comprise full annular rub and part are touched rub) fault;
Three, simulation rotor quality imbalance fault in various degree;
Four, simulate any two kinds or even the three kinds of combined failures that simultaneously form in fault, rubbing fault and quality imbalance fault that misalign in various degree.
Section 1 experiment of the present invention misaligns fault simulation mechanism by axle system and completes, and described axle is diaxon bearing, bearing seat mounting groove, the positioning jackscrew that misaligns fault simulation mechanism and comprise motor rotating table, support rotor.Referring to Fig. 1, Fig. 8, motor 2 is fixed on motor rotating table 5, fan-shaped motor rotating table 5 is arranged in the motor rotating table mounting groove 1-1 on base 1, rotary middle spindle 8 is through the geometric center of motor rotating table, motor rotating table and motor rotating table mounting groove are formed and be rotationally connected, the center line of rotary middle spindle aligns with the end position of motor output shaft.Said structure, motor rotating table can drive motor taking the rotary middle spindle 8 that arranges perpendicular to base plane for 1 ° of center of rotation deflection, 2 °, between simulated machine output shaft and rotor, the axle of 1 ° of drift angle, 2 ° of drift angles is to misalign fault thus.Motor rotating table is provided with three groups of motor rotating table bolts hole, is respectively two of 0 ° of pilot hole 5-1, two of 1 ° of pilot hole 5-2, two of 2 ° of pilot hole 5-3.As shown in Figure 8, the angle of the line at 0 ° of pilot hole 5-1 center and rotary middle spindle center and 1 ° of pilot hole, 2 ° of pilot hole centers and the rotary middle spindle line of centres is respectively 1 ° and 2 °; In motor rotating table mounting groove, be provided with three groups of bolts hole, these three groups of bolt hole center's lines and the skew of rotary middle spindle line of centres non-angular, like this, when each group of motor rotating table bolt hole is respectively when on base, respective sets bolt hole coordinates, can be respectively that motor rotating table is fastening through bolt and base when centering position (zero deflection), 1 ° of position of deflection or the 2 ° of positions of deflection.
Referring to Fig. 1, Fig. 2, base 1 is provided with two bearing seat mounting groove 1-2, the bottom of diaxon bearing 6 is inlaid in respectively in each bearing seat mounting groove, the two ends of each bearing seat mounting groove are respectively equipped with the positioning jackscrew 7 of adjusting bearing seat radial position, turn these two positioning jackscrews, can make bearing seat radially produce certain displacement together with rotor.The footing of each bearing seat 6 is respectively equipped with three groups of bearing block bolt hole 6-1, two every group; Described each bearing seat mounting groove 1-2 is also provided with three groups of bearing seat mounting groove threaded hole 1-2-1, two every group; The centre distance of adjacent shaft bearing bolt hole is a millimeter, and the centre distance of adjacent shaft bearing mounting groove threaded hole is a+1 millimeter.Said structure, in the time of model rotor centering, first group of bearing block bolt hole (label 6-1 indication in Fig. 2) is corresponding with first group of bearing seat mounting groove threaded hole (label 1-2-1 indication in Fig. 2) position, through bolted bearing seat; In the time that simulation axle is 1mm Parallel misalignment fault, bearing seat is offset 1mm left, and second group of bearing block bolt hole is corresponding with second group of bearing seat mounting groove threaded hole position, through bolted bearing seat; In the time of model rotor 2mm Parallel misalignment fault, bearing seat is offset 2mm left, the 3rd group of bearing block bolt hole and the 3rd group of bearing seat mounting groove threaded hole position are at once, through bolted bearing seat, realize model rotor Parallel misalignment fault in various degree with this.
Referring to Fig. 1, Fig. 3, the shaft coupling that axle system misaligns fault simulation mechanism comprises by bolted motor side ring flange 3-1, rotor-end ring flange 3-2 and is positioned at above-mentioned between the two according to the adjustment block 3-3 of emulation mode choice for use.Motor side ring flange 3-1 is provided with three circle motor side flange connecting holes, and the line of centres circle that respectively encloses motor side flange connecting hole is coaxial, respectively encloses the ascending R1 of being followed successively by of line of centres radius of a circle, R2, the R3 of motor side flange connecting hole.Described rotor-end ring flange 3-2 is provided with three circle rotor-end flange connecting holes, ascending R1, R2, the R3 of being also followed successively by of line of centres radius of a circle of each circle rotor-end flange connecting hole, but the line of centres circle disalignment of three circle rotor-end flange connecting holes.Wherein, the center of circle of the center of circle relative rotor-end ring flange inner ring connecting hole 3-2-1 line of centres circle of rotor-end ring flange centre circle connecting hole 3-2-2 line of centres circle is to 1 millimeter of keyway direction skew; The center of circle of the center of circle relative rotor-end ring flange inner ring connecting hole line of centres circle of the line of centres circle of rotor-end flange plate outer ring connecting hole 3-2-3 is to 2 millimeters of keyway direction skews.Described adjustment block 3-3 has three kinds, be respectively that both ends of the surface are parallel, both ends of the surface become 1 ° of cone angle to become 2 ° of cone angles with both ends of the surface, three circle adjustment block connecting holes are set in each adjustment block, the line of centres circle of each circle adjustment block connecting hole is coaxial, respectively encloses the ascending R1 of being followed successively by of line of centres radius of a circle, R2, the R3 of adjustment block connecting hole.Said structure, in the time of Parallel misalignment that analog offset is 0mm, is positioned at the motor side flange connecting hole of inner ring and the inner ring adjustment block connecting hole of rotor-end ring flange inner ring connecting hole and the parallel adjustment block of both ends of the surface and coordinates, and penetrates bolt and fixes; In the time of Parallel misalignment that analog offset is 1mm, the connecting hole of motor side ring flange and the centre circle adjustment block connecting hole of rotor-end ring flange centre circle connecting hole and the parallel adjustment block of both ends of the surface that are positioned at centre circle coordinate, and penetrate bolt and fix; In the time of Parallel misalignment that analog offset is 2mm, be positioned at the motor side flange connecting hole of outer ring and the outer ring adjustment block connecting hole of rotor-end flange plate outer ring connecting hole and the parallel adjustment block of both ends of the surface coordinates, penetrate bolt and fix.When simulation axle is the adjustment block that drift angle replaces with adjustment block according to requirement of experiment 1 ° of cone angle of both ends of the surface or 2 ° of cone angles of both ends of the surface while misaligning fault.When simulation axle is parallel and drift angle is compound while misaligning fault, select suitable adjustment block according to requirement of experiment, and in the manner described above by being used in conjunction with of motor side flange connecting hole, rotor-end flange connecting hole and adjustment block connecting hole, complete different simulated experiments.The shaft coupling of model rotor normal condition as shown in Figure 4, the shaft coupling of model rotor Parallel misalignment (2 millimeters of skews) state as shown in Figure 5, the shaft coupling of model rotor drift angle condition of misalignment as shown in Figure 6, the parallel and drift angle of model rotor simultaneously condition of misalignment (2 ° of drift angles, 2 millimeters of skews) shaft coupling as shown in Figure 7.
Still referring to Fig. 1, Fig. 9, rubbing simulation mechanism carries out part, and to touch the analogy method of the fault of rubbing as follows: symmetrically on the minor diameter dish 9-2 of ladder rotating disk install two and touch the excellent 9-4 that rubs, then latch plate position adjustments jackscrew 10-2 is placed in to top wire hole 10-1 on the lower, precession latch plate position adjustments jackscrew, make latch plate close to ladder rotating disk 9, when stirring rotor 4, touch rub excellent 9-4 can with latch plate generation grazing, but other position of ladder rotating disk 9 all can not come in contact with latch plate, like this, in experiment table operational process, rotor often turns around, two touch the excellent 9-4 of rubbing will be respectively with latch plate grazing once, thereby the fault of rubbing is touched in simulation part, regulate jackscrew to head on latch plate to the close displacement difference of rotor, the seriously also different of the fault degree that rubs are touched in the part of simulating.In this process, the rotation of rotor 4 has directivity requirement, as shown in Figure 9.
Still referring to Fig. 1, Fig. 9, the analogy method that rubbing simulation mechanism carries out full annular rub fault is as follows: unload and touch the excellent 9-4 that rubs, then latch plate position adjustments jackscrew 10-2 is placed in to top top wire hole 10-1, precession latch plate position adjustments jackscrew, now latch plate 10-3 by headed on to ladder rotating disk 9 near and with rotating disk in the major diameter dish 9-1 periphery of external diameter maximum come in contact, no matter these contact rotor 4 rotations or static existence all the time, like this, in the time that rotating, rotor 4 just can rub with latch plate 10-3 always, thereby simulation full annular rub fault, the number of turns difference (heading on the power difference of latch plate) that regulates jackscrew to be screwed into, the order of severity of the full annular rub fault of simulating is also different.
Still referring to Fig. 1, Fig. 9, the analogy method that rubbing simulation mechanism carries out quality imbalance fault is as follows: according to requirement of experiment, asymmetric spiral shell packing quality piece 9-5 on minor diameter dish 9-2 end face, rotor rotates, just can simulate quality imbalance fault in various degree, the asymmetric degree of mass of institute's spiral shell dress is larger, and corresponding quality imbalance fault of simulating is more serious.
Claims (6)
1. a Multifunctional rotor experiment table, it comprises base (1), motor (2), shaft coupling (3), rotor (4), by shaft coupling, motor output shaft is connected with rotor, it is characterized in that: described experiment table is also provided with axle system and misaligns fault simulation mechanism, rubbing simulation mechanism; Described axle is diaxon bearing (6), bearing seat mounting groove (1-2), the positioning jackscrew (7) that misaligns fault simulation mechanism and comprise motor rotating table (5), support rotor, wherein, motor rotating table is positioned on base, motor rotating table can rotate certain angle along the rotary middle spindle (8) arranging perpendicular to base plane by drive motor, and described diaxon bearing can move relative to rotor radial respectively; Described rubbing simulation mechanism comprises ladder rotating disk (9) and touches the frame that rubs (10), touch the frame that rubs, ladder rotating disk axial location is adjustable, ladder rotating disk and rotor are fixed, touching rub frame and base fixes, ladder rotating disk is provided with dismountable rod that rubs (9-4) that touches, touch the frame that rubs and be provided with latch plate (10-3), touch and on the frame that rubs, be also provided with eddy current sensor (11); Described shaft coupling (3) comprises motor side ring flange (3-1), rotor-end ring flange (3-2) and is positioned at above-mentioned between the two according to the adjustment block of emulation mode choice for use (3-3).
2. Multifunctional rotor experiment table according to claim 1, it is characterized in that, described ladder rotating disk comprises major diameter dish (9-1), minor diameter dish (9-2) and the shaft collar (9-3) that diameter reduces successively, on the outer circumference surface of minor diameter dish, spiral shell dress touches the rod that rubs (9-4), screw thread installation quality piece (9-5) on the end face of minor diameter dish; The upper end of described latch plate (10-3) with touch the frame that rubs and fix, touching rubs sets up two top wire holes (10-1) of arranging up and down, latch plate position adjustments jackscrew (10-2) is through upper top wire hole or lower top wire hole, top latch plate is touched on its top.
3. Multifunctional rotor experiment table according to claim 2, it is characterized in that, described motor (2) is fixing with motor rotating table (5), motor rotating table is fan-shaped platform, described base (1) is provided with fan-shaped motor rotating table mounting groove (1-1), motor rotating table is positioned at motor rotating table mounting groove, described rotary middle spindle (8) is through the geometric center of motor rotating table, motor rotating table and motor rotating table mounting groove are formed to be rotationally connected, the center line of rotary middle spindle aligns with the end position of motor output shaft, motor rotating table is provided with three groups of motor rotating table bolts hole, be respectively two of 0 ° of pilot holes (5-1), two of 1 ° of pilot holes (5-2), two of 2 ° of pilot holes (5-3), each group motor rotating table bolt hole is respectively used to motor rotating table in 0 ° of position of deflection, when 1 ° of position of deflection or 2 ° of positions of deflection and base fastening.
4. Multifunctional rotor experiment table according to claim 3, it is characterized in that, described base is provided with two bearing seat mounting grooves (1-2), diaxon bearing (6) bottom is inlaid in respectively in corresponding bearing seat mounting groove, the two ends of each bearing seat mounting groove are respectively equipped with the positioning jackscrew (7) of adjusting bearing seat radial position, and each bearing seat is fixed through bolt and base.
5. Multifunctional rotor experiment table according to claim 4, it is characterized in that, the motor side ring flange (3-1) of described shaft coupling is provided with three circle motor side flange connecting holes, the line of centres circle of each circle motor side flange connecting hole is coaxial, and the line of centres radius of a circle that respectively encloses motor side flange connecting hole is followed successively by R1, R2, R3 from small to large; Described rotor-end ring flange (3-2) is provided with three circle rotor-end flange connecting holes, the line of centres radius of a circle of each circle motor side flange connecting hole is followed successively by R1, R2, R3 from small to large, wherein, 1 millimeter of the center of circle skew of the line of centres circle of the center of circle relative rotor-end ring flange inner ring connecting hole (3-2-1) of the line of centres circle of rotor-end ring flange centre circle connecting hole (3-2-2), 2 millimeters of the center of circle skews of the center of circle relative rotor-end ring flange inner ring connecting hole line of centres circle of the line of centres circle of rotor-end flange plate outer ring connecting hole (3-2-3); Described adjustment block (3-3) has three kinds, be respectively that both ends of the surface are parallel, both ends of the surface become 1 ° of cone angle to become 2 ° of cone angles with both ends of the surface, three circle adjustment block connecting holes are set in each adjustment block, respectively enclose adjustment block connecting hole line of centres radius of a circle and be followed successively by from small to large R1, R2, R3.
6. Multifunctional rotor experiment table according to claim 5, is characterized in that, described each bearing seat (6) bottom is respectively equipped with three groups of bearing block bolt holes (6-1), two every group; On described each bearing seat mounting groove (1-2), be respectively equipped with three groups of bearing seat mounting groove threaded holes (1-2-1), two every group; The centre distance of adjacent shaft bearing bolt hole is a millimeter, and the centre distance of adjacent shaft bearing mounting groove threaded hole is a+1 millimeter.
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