CN201680963U - Coupled intelligent bearing monitor - Google Patents
Coupled intelligent bearing monitor Download PDFInfo
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- CN201680963U CN201680963U CN2010201405021U CN201020140502U CN201680963U CN 201680963 U CN201680963 U CN 201680963U CN 2010201405021 U CN2010201405021 U CN 2010201405021U CN 201020140502 U CN201020140502 U CN 201020140502U CN 201680963 U CN201680963 U CN 201680963U
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Abstract
The utility model discloses a coupled intelligent bearing monitor, which is characterized by comprising a casing and a rotation speed coded disc. The rotation speed coded disc is a circular coded disc coaxial with the casing, the intelligent monitor is axially inserted into a gap between a rotary ring and a fixed ring of a bearing to be in clearance fit with the bearing, two strain gauge type acceleration sensing devices, a rotation speed sensing device and a temperature sensing device are embedded onto the casing and are all connected with a circuit board on the end face of the casing through signal output wires so as to achieve evident effects, the intelligent monitor can effectively extract low frequency characteristics of the bearing, and increases signal reliability and effectiveness, each of the sensing devices as one part of components of the intelligent bearing is easy in installation and detachment, further damage to the bearing structure and bearing stress are reduced, the rotation speed is sampled by means of triggering, and synchronous triggered acquisition of multiple parameters of the bearing is realized.
Description
Technical field
The utility model belongs to the monitoring equipment, relates in particular to a kind of coupling type intelligent bearing monitoring device that bearing state detects that is applied to.
Background technology
Present integral intelligent bearing has external hanging type and embedded two kinds of versions.The external hanging type combination is not destroyed the structure of bearing but the overall dimensions of traditional bearing is changed, the characteristics of such combination have determined the sensory package and the source of trouble to have certain distance simultaneously, make its signal that obtains to reflect the failure message of bearing truly, more can not do early detection to the fault signature of bearing in this way, because adopt the right bearing fault of this kind structure to detect the reliability that can not guarantee signal; Embedded in conjunction with mode very near the generation source of measured signal, the intermediate interface of signal transmission reduces, the signal of gathering can reflect the practical working situation of bearing truly, the signal to noise ratio (S/N ratio) height, but this structural failure the integrality of bearing, and problem such as cause that easily stress is concentrated, thereby this structure detects bearing state and also has certain problem.
At present, the method that the structure of employing external hanging type and embedded these two kinds of combinations detects the bearing working performance, mostly be to add the revolution speed sensing device by the piezoelectric strain chip to obtain the bearing vibration signal, and the piezoelectric strain chip adds that the revolution speed sensing device mainly obtains is the high band information of bearing, the frequency range of the signal that obtains is very wide, and wherein comprise ground unrest and various undesired signal, make the failure message of bearing be submerged in this broadband signal.Adopt the piezoelectric strain chip to add the vibration signal that the revolution speed sensing device obtains, generally all be to rely on technology such as Shock Pulse Method, resonance and demodulation to extract needed fault signature, and these class methods can not be chosen the scope of resonance bands effectively, extract for follow-up fault signature and bring difficulty, so be difficult to really obtain satisfied Fault Identification effect.Existing two kinds of combinations, the sensing unit of its band rotational speed devices can not be realized the synchronous triggering collection of many reference amounts, and this synchronous triggering collection has crucial effects for follow-up bearing failure diagnosis, often can more effectively extract failure message by the integer-period sampled of flip flop equipment.
The shortcoming of prior art is: the signal that the structure of external hanging type is obtained can not reflect the failure message of bearing truly, Embedded structural failure the inner structure of bearing, cause the problem of stress concentration of bearing, and the failure message of bearing is submerged in this broadband signal, can not effectively extract the low-frequency range feature of bearing, more can not realize the synchronous triggering collection of bearing many reference amounts.
The utility model content
The purpose of this utility model provides a kind of coupling type intelligent bearing monitoring device of realizing the synchronous triggering collection of bearing many reference amounts.
For achieving the above object, the utility model is explained a kind of coupling type intelligent bearing monitoring device, its key is: comprise housing and rotating speed code-disc, described rotating speed code-disc is the circular code-disc with the housing concentric, and the intellectual monitoring device axially inserts the rotation circle of described bearing and not gap location between the moving-coil and bearing interference fit;
End at housing is provided with two step surfaces, described housing by step surface and Bearing Installation together, described rotating speed code-disc is realized installation with bearing by the interference fit with the rotation circle of bearing, and bearing is monitored;
Be embedded with two strain chip acceleration sensing devices on the described housing, a revolution speed sensing device and a temperature sensing device, the center line of described two strain chip acceleration sensing devices all is parallel to the center line of described housing, both angles are 90 °, described revolution speed sensing device radially be embedded in described housing on, the center line of described temperature sensing device is parallel to the center line of described housing, circuit board also is installed, described two strain chip acceleration sensing devices on the end face of described housing, revolution speed sensing device and a temperature sensing device all are connected with input wires terminal on the described circuit board through output line;
Also be provided with the signals collecting trigger circuit on the described circuit board, the acceleration signal amplifying circuit, tach signal amplifying circuit and temperature signal amplifying circuit, the input end of described acceleration signal amplifying circuit is connected with the output terminal of described acceleration sensing device, the input end of described tach signal amplifying circuit is connected with the output terminal of described revolution speed sensing device, the input end of described temperature signal amplifying circuit is connected with the output terminal of described temperature sensing device, described acceleration signal amplifying circuit, tach signal amplifying circuit and temperature signal amplifying circuit all are provided with signal output part, each signal output part respectively with the acceleration signal input end of described signals collecting trigger circuit, the tach signal input end is connected with the temperature signal input end, the signal that the output terminal output of described signals collecting trigger circuit collects is given computing machine 8 and is handled.
Two strain chip acceleration sensing devices, a revolution speed sensing device and a temperature sensing device evenly are embedded on the housing, vibration when being used to detect bearing working, temperature and speed conditions, sensing device is as the part of intelligent bearing parts, be easy to installation and removal, because this structure is near the bearing fault source, can extract the low-frequency range feature of bearing effectively, avoided high frequency noise, the generation of undesired signal, the reliability and the validity of signal have been improved greatly, the housing of intelligent bearing is installed on the end face of bearing by interference fit, has reduced the problem that the destruction and the bearing stress of bearing arrangement are concentrated.
Strain chip acceleration sensing device, a revolution speed sensing device and a temperature sensing device are transferred to the acceleration signal amplifying circuit to signal respectively, tach signal amplifying circuit and temperature signal amplifying circuit, the acceleration signal amplifying circuit, after tach signal amplifying circuit and temperature signal amplifying circuit amplify the signal of importing, be transferred to the signals collecting trigger circuit, the revolution speed sensing device of installing near the rotating speed code-disc sends pulse signal, give the signals collecting trigger circuit, when of the step-by-step counting of signals collecting trigger circuit according to setting, acceleration signal and temperature signal that triggering collection has been amplified have been realized the synchronous triggering collection of bearing many reference amounts.
Each described strain chip acceleration sensing device is by four foil gauges, elastic body and mass are formed, described elastomeric bottom is an isosceles trapezoid template structure, top is cylindrical structure, described isosceles trapezoid template structure has first through hole and second through hole along the upper and lower of center line, two foil gauges in described four foil gauges are arranged in the upper and lower of axial plane in the described elastomeric cylindrical structure, described other two foil gauges are arranged in the left and right sides of axial plane in the vertical described elastomeric cylindrical structure, described four foil gauges are identical with the distance of described isosceles trapezoid template structure, described two foil gauges are respectively drawn a lead, two leads are connected with the first signal for faster terminals of described circuit board after all passing first through hole, other two foil gauges are also all respectively drawn a lead, these two leads are connected with the second signal for faster terminals of described circuit board after passing second through hole respectively, described mass is a cylindrical structural, and an end face and the described elastomeric upper end of this mass are consolidated with fixing glue;
Be provided with counterbore in the described housing, the top of this counterbore is consistent with the shape of described isosceles trapezoid template structure, and thickness is identical, coats fixing glue on the upper inside wall of counterbore, and the elastic body that the upper end is fixed with mass is packed in the described counterbore.
Two strain chip acceleration sensing devices are installed in the counterbore of housing, as the part of housing,, and do not change the structure of bearing near the signal source of bearing, the perception of two strain chip acceleration sensing devices is convenient to perception bearing vibration situation from the acceleration signal of all directions.
Described revolution speed sensing device is by magnetic pole, solenoid, the speed probe shell, permanent magnet and " L " type lead-in wire forms, the bottom of described speed probe shell is a hexagonal nut, this speed probe outer casing underpart is a helicitic texture for one section, described magnetic pole is a cylindrical structural, this magnetic pole runs through the bottom of described speed probe shell, described speed probe shell is stretched out in the lower end of described magnetic pole, the upper end of this magnetic pole is positioned at the speed probe shell, described magnetic pole top is connected with the lower end of described permanent magnet, the upper end of described permanent magnet with " L " end of type lead-in wire is connected, described solenoid is installed on the inwall of described speed probe shell, and described magnetic pole passes described solenoid center pit;
The revolution speed sensing device that described inner walls has is radially installed counterbore, the top that this revolution speed sensing device is installed counterbore is female thread structure, the hexagonal nut of described speed probe shell by the bottom is installed in the revolution speed sensing device of described housing and installs in the counterbore, described " L " the type lead-in wire passes described lower housing portion " L " the type through hole.
The revolution speed sensing device radially is installed in inner walls, the rotating speed code-disc is made with weak magnetic metal material, the rotating speed code-disc is followed bearing when rotating together, the pole parts of stretching out produces magnetic variationization, cause the variation of solenoid magnetic circuit, the magnetic flux in the coil changes, and induces the electromotive force of amplitude alternation in the solenoid, with the activated amplifier that solenoid is connected indirectly faint induction electromotive force is amplified, thereby change the tach signal of bearing into electric impulse signal output.
Described temperature sensing device is made up of metal sleeve, the electric heating utmost point, insulating material, installation nut and temperature signal lead-in wire, the described metal sleeve and the electric heating utmost point all are installed in the bottom of described installation nut, described filling insulating material is between the described metal sleeve and the electric heating utmost point, the outer wall of described installation nut is provided with external thread, and this is installed the nut upper end and is connected with an end of described temperature signal lead-in wire;
Described housing is provided with through hole, this through hole bottom, middle part and top are three sections ladder circular holes that diameter is different, the middle part inwall of described through hole is a female thread structure, described through hole lower diameter is greater than the middle part diameter, the middle part diameter is greater than upper diameter, the middle part of described through hole is connected with described installation nut thread, described temperature sensing device is installed in the described through hole by nut is installed, described metal sleeve, the electric heating utmost point, insulating material all are positioned at the through hole bottom, and the temperature signal lead-in wire that the upper end of described installation nut connects passes the upper hole of described through hole.
Metal sleeve is near axle bearing, the temperature variation of perception bearing rapidly, and the insulating material of temperature variation by good heat conductivity passed to the electric heating utmost point, by the electric heating utmost point temperature signal is transferred to amplifying circuit and handles.
Described acceleration signal amplifying circuit is provided with first～the 4th amplifier, described tach signal amplifying circuit is provided with the 5th amplifier, described temperature signal amplifying circuit is provided with the 6th amplifier, described signals collecting trigger circuit are provided with the USB integrated circuit board, and this USB integrated circuit board is provided with first analog input end, second analog input end, the 3rd analog input end, the 4th analog input end, the 5th analog input end and the 6th analog input end;
The foil gauge output signal that is arranged in the top of axial plane in the described elastomeric cylindrical structure is behind first potentiometer and first resistance, transfer signals to described first amplifier's inverting input, be connected with the output terminal of described first amplifier behind this first amplifier's inverting input second resistance also in parallel, ground connection behind in-phase input end string the 3rd resistance of described first amplifier, the output terminal of described first amplifier is connected with described first analog input end;
The foil gauge output signal of the bottom of axial plane is behind second potentiometer and the 4th resistance in the described elastomeric cylindrical structure, transfer signals to described second amplifier's inverting input, be connected with the output terminal of described second amplifier behind this second amplifier's inverting input the 5th resistance also in parallel, ground connection behind in-phase input end string the 6th resistance of described second amplifier, the output terminal of this second amplifier is connected with described second analog input end;
The output signal of a slice foil gauge in the described both sides that are arranged in axial plane in the vertical described elastomeric cylindrical structure is behind the 3rd potentiometer and the tenth resistance, transfer signals to described the 3rd amplifier's inverting input, the 3rd amplifier's inverting input also and behind the 11 resistance is connected with the output terminal of described the 3rd amplifier, ground connection behind in-phase input end string the 12 resistance of described the 3rd amplifier, the output terminal of the 3rd amplifier is connected with described the 4th analog input end;
The output signal of another sheet foil gauge in the described both sides that are arranged in axial plane in the vertical described elastomeric cylindrical structure is behind the 4th potentiometer and the 13 resistance, transfer signals to described the 4th amplifier's inverting input, the 4th amplifier's inverting input also and behind the 14 resistance is connected with the output terminal of described the 4th amplifier, ground connection behind in-phase input end string the 15 resistance of described the 4th amplifier, the output terminal of the 4th amplifier is connected with described the 5th analog input end;
The output signal of described revolution speed sensing device is behind the 7th resistance, transfer signals to described the 5th amplifier's inverting input, the 5th amplifier's inverting input also and behind the 8th resistance is connected with the output terminal of described the 5th amplifier, ground connection behind in-phase input end string the 9th resistance of described the 5th amplifier, the output terminal of the 5th amplifier is connected with described the 3rd analog input end;
The output signal of described temperature sensing device is behind resistance bridge and the 20 resistance, transfer signals to the 6th amplifier's inverting input, the 6th amplifier's inverting input also and behind the 21 resistance is connected with the output terminal of described the 6th amplifier, ground connection behind in-phase input end string the 22 resistance of described the 6th amplifier, the output terminal of described the 6th amplifier is connected with described the 6th analog input end.
The anti-phase ratio amplifying circuit that first～the 4th amplifier is formed is the signal of one group of foil gauge of perception respectively, first～the 4th amplifier amplifies the signal of input, and amplifying signal is transferred to first analog input end, second analog input end, the 4th analog input end and the 5th analog input end of USB integrated circuit board respectively.
The 5th amplifier and the 6th amplifier carry out ratio to the tach signal of input and temperature signal respectively and amplify, and respectively the signal that amplified of output to the 3rd analog input end and the 6th analog input end of USB integrated circuit board.
Be connected with an end of the 17 resistance behind input end string the 16 resistance of described resistance bridge, the other end of the 17 resistance is connected with the output terminal of resistance bridge, the input end of described resistance bridge is also gone here and there and is connected with an end of the 19 resistance behind the 18 resistance, the other end of the 19 resistance is connected with the output terminal of resistance bridge, and also going here and there respectively between an end of described the 17 resistance and the end of the 19 resistance has the 5th potentiometer and electric capacity.
The 16 resistance is thermistor, when the reference temperature end changes, the 16 resistance changes, cause bridge output voltage also to change thereupon, and the variable quantity of this voltage can remedy because cold junction temperature changes the variation of the output voltage that causes, total the output of circuit is not changed with the variation of environment temperature.
Described signals collecting trigger circuit also are provided with first～the 4th trigger and the comparer, described USB integrated circuit board also is provided with high-pressure side and digitally holds, the 1 of described comparer～the one or three digital end all is connected with the digitally end of described USB integrated circuit board, the one or four digital end of described comparer is connected with the high-pressure side of described USB integrated circuit board, described comparer also is provided with the first comparison signal output terminal and the second comparison signal output terminal, the described first comparison signal output terminal is connected with the trigger pip input end of described USB integrated circuit board, the described second comparison signal output terminal is connected with the first input end of first AND circuit, second input end of this first AND circuit is connected with the speed digital signal output end of described comparer, and the output terminal of described first AND circuit all is connected with the triggering input end of described first～the 4th trigger;
The J/K trigger end of described first trigger all is connected with the high-pressure side of described USB integrated circuit board, the triggering output terminal of described first trigger is connected with the J/K trigger end of described second trigger, the triggering output terminal of described first trigger also is connected with the 21 digital end of second AND circuit, the triggering output terminal of described first trigger also is connected with the first input end of second AND circuit
The triggering output terminal of described second trigger is connected with the two or two digital end of described comparer, the triggering output terminal of described second trigger also is connected with second input end of second AND circuit, the output terminal of this second AND circuit is connected with the input end of first OR circuit, the output terminal of this first OR circuit is connected with the J/K trigger end of described the 3rd trigger respectively, the output terminal of the 3rd trigger is connected with the two or three digital end of described comparer, the output terminal of described first OR circuit divide and the output terminal of described the 3rd trigger also respectively with first of the 3rd AND circuit, two input ends connect, the output terminal of the 3rd AND circuit is connected with the input end of second OR circuit, the output terminal of this second OR circuit is connected with the J/K trigger end of described the 4th trigger, and the output terminal of the 4th trigger is connected with the two or four digital end of described comparer.
Described USB integrated circuit board also is provided with first～the 4th and quickens digital signal output end and temperature digital signal output part, and described first～the 4th quickens digital signal output end, speed digital signal output end and temperature digital signal output part output digital signal to computing machine 8.
The USB integrated circuit board is handled the rotating speed simulating signal of input, and the umber of pulse of writing speed sensing device generation, when the umber of pulse that writes down reaches setting value, the speed digital signal output end output signal of USB integrated circuit board, the first comparison signal output terminal output trigger pip of comparer, the digital signal that digital signal output end, speed digital signal output end and temperature digital signal output part are exported acceleration, speed and temperature is respectively quickened in USB integrated circuit board control first～the 4th, and give computing machine with signal, by computing machine signal is handled.This device has been realized the synchronous acquisition of acceleration signal, tach signal and temperature signal, is convenient to subsequent analysis processing.
Described rotating speed code-disc is sleeved in the described housing.
Motionless for the outer ring, the bearing of inner ring rotation, in the housing that the rotating speed code-disc is sleeved on, rotating speed code-disc and inner ring interference fit, housing and outer ring interference fit, thus inner ring drives the rotation of rotating speed code-disc when rotating.
Described rotating speed code-disc is sleeved on outside the described housing.
For the outer ring rotation, the bearing that inner ring is motionless, housing are sleeved in the rotating speed code-disc, housing and inner ring interference fit, and rotating speed code-disc and outer ring interference fit, thus the outer ring drives the rotation of rotating speed code-disc when rotating.
Remarkable result of the present utility model is: each sensing device is near the bearing fault source, can extract the low-frequency range feature of bearing effectively, avoided the generation of high frequency noise, undesired signal, the reliability and the validity of signal have been improved greatly, each sensing device is as the part of intellectual monitoring device, be easy to installation and removal, the intelligent bearing monitor is installed on the end face of bearing by interference fit, destruction and the concentrated problem of bearing stress have been reduced to bearing arrangement, rotating speed triggers sampling, has realized the synchronous triggering collection of bearing many reference amounts.
Description of drawings
Fig. 1 is that housing 1 of the present utility model is sleeved on the front view outside the rotating speed code-disc 2;
Fig. 2 is the A-A diagrammatic sketch of Fig. 1;
Fig. 3 is the B-B diagrammatic sketch of Fig. 1;
Fig. 4 is a circuit block diagram of the present utility model;
Fig. 5 is the front view of acceleration sensing device;
Fig. 6 is the A-A diagrammatic sketch of Fig. 5;
Fig. 7 is the assembling synoptic diagram of acceleration sensing device and housing;
Fig. 8 is the A portion enlarged drawing of Fig. 2;
Fig. 9 is the upward view of Fig. 8;
Figure 10 is the B portion enlarged drawing of Fig. 3;
Figure 11 is signal amplification circuit figure of the present utility model;
Figure 12 is signals collecting trigger circuit figure;
Figure 13 is sleeved on the outer front view of housing for rotating speed code-disc of the present utility model;
Figure 14 is the A-A diagrammatic sketch of Figure 13;
Figure 15 is the B-B diagrammatic sketch of Figure 13.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment one
Shown in Fig. 1 to 4, a kind of coupling type intelligent bearing monitoring device, comprise housing 1 and rotating speed code-disc 2, described rotating speed code-disc 2 is the circular code-disc with housing 1 concentric, and the intellectual monitoring device axially inserts the rotation circle of described bearing and not gap location between the moving-coil and bearing interference fit;
Be embedded with two strain chip acceleration sensing devices 3 on the described housing 1, a revolution speed sensing device 4 and a temperature sensing device 5, the center line of described two strain chip acceleration sensing devices 3 all is parallel to the center line of described housing 1, both angles are 90 °, described revolution speed sensing device 4 radially be embedded in described housing 1 on, the center line of described temperature sensing device 5 is parallel to the center line of described housing 1, circuit board 6 also is installed, described two strain chip acceleration sensing devices 3 on the end face of described housing 1, revolution speed sensing device 4 and a temperature sensing device 5 all are connected with input wires terminal on the described circuit board 6 through output line;
Also be provided with signals collecting trigger circuit 9 on the described circuit board 6, acceleration signal amplifying circuit 10, tach signal amplifying circuit 11 and temperature signal amplifying circuit 12, the input end of described acceleration signal amplifying circuit 10 is connected with the output terminal of described acceleration sensing device 3, the input end of described tach signal amplifying circuit 11 is connected with the output terminal of described revolution speed sensing device 4, the input end of described temperature signal amplifying circuit 12 is connected with the output terminal of described temperature sensing device 5, described acceleration signal amplifying circuit 10, tach signal amplifying circuit 11 and temperature signal amplifying circuit 12 all are provided with signal output part, each signal output part respectively with the acceleration signal input end of described signals collecting trigger circuit 9, the tach signal input end is connected with the temperature signal input end, the signal that the output terminal output of described signals collecting trigger circuit 9 collects is given computing machine 8 and is handled.
As shown in Figs. 5 to 7, each described strain chip acceleration sensing device 3 is by four foil gauges 15, elastic body 16 and mass 17 are formed, the bottom of described elastic body 16 is an isosceles trapezoid template structure 13, top is cylindrical structure, described isosceles trapezoid template structure 13 has first through hole 14 and second through hole 14 ' along the upper and lower of center line, two foil gauges 15 in described four foil gauges 15 are arranged in the upper and lower of axial plane in the cylindrical structure of described elastic body 16, described other two foil gauges 15 are arranged in the left and right sides of axial plane in the cylindrical structure of vertical described elastic body 16, described four foil gauges 15 are identical with the distance of described isosceles trapezoid template structure 13, described two foil gauges 15 are respectively drawn a lead, two leads all pass first through hole, 14 backs and are connected with the first signal for faster terminals of described circuit board 6, other two foil gauges 15 are also all respectively drawn a lead, these two leads pass second through hole, 14 ' back respectively and are connected with the second signal for faster terminals of described circuit board 6, described mass 17 is a cylindrical structural, and the end face of this mass 17 and the upper end of described elastic body 16 are consolidated with fixing glue;
Be provided with counterbore 18 in the described housing 1, the top of this counterbore 18 is consistent with the shape of described isosceles trapezoid template structure 13, thickness is identical, coats fixing glue on the upper inside wall of counterbore 18, and the elastic body 16 that the upper end is fixed with mass 17 is packed in the described counterbore 18.
Shown in Fig. 8 and 9, described revolution speed sensing device 4 is by magnetic pole 19, solenoid 20, speed probe shell 21, permanent magnet 22 and " L " type lead-in wire 23 are formed, the bottom of described speed probe shell 21 is a hexagonal nut 24, these speed probe shell 21 bottoms are helicitic texture for one section, described magnetic pole 19 is a cylindrical structural, this magnetic pole 19 runs through the bottom of described speed probe shell 21, described speed probe shell 21 is stretched out in the lower end of described magnetic pole 19, the upper end of this magnetic pole 19 is positioned at speed probe shell 21, described magnetic pole 19 tops are connected with the lower end of described permanent magnet 22, the upper end of described permanent magnet 22 is connected with an end of " L " type lead-in wire 23, described solenoid 20 is installed on the inwall of described speed probe shell 21, and described magnetic pole 19 passes described solenoid 20 center pits;
The revolution speed sensing device that described housing 1 inwall has is radially installed counterbore, the top that this revolution speed sensing device is installed counterbore is female thread structure, the hexagonal nut 24 of described speed probe shell 21 by the bottom be installed in the revolution speed sensing device of described housing 1 and install in the counterbore, and described " L " type lead-in wire 23 passes described housing 1 bottom " L " the type through hole.
As shown in figure 10, described temperature sensing device 5 is made up of metal sleeve 25, the electric heating utmost point 26, insulating material 27, installation nut 28 and temperature signal lead-in wire 29, the described metal sleeve 25 and the electric heating utmost point 26 all are installed in the bottom of described installation nut 28, described insulating material 27 is filled between the described metal sleeve 25 and the electric heating utmost point 26, the outer wall of described installation nut 28 is provided with external thread, and this is installed nut 28 upper ends and is connected with an end of described temperature signal lead-in wire 29;
Described housing 1 is provided with through hole 30, these through hole 30 bottoms, the middle part is three sections ladder circular holes that diameter is different with top, the middle part inwall of described through hole 30 is a female thread structure, described through hole 30 lower diameter are greater than the middle part diameter, the middle part diameter is greater than upper diameter, the middle part of described through hole 30 is threaded with described installation nut 28, described temperature sensing device 5 is installed in the described through hole 30 by nut 28 is installed, described metal sleeve 25, the electric heating utmost point 26, insulating material 27 all is positioned at through hole 30 bottoms, and the temperature signal lead-in wire 29 that the upper end of described installation nut 28 connects passes the upper hole of described through hole 30.
As shown in figure 11, described acceleration signal amplifying circuit 10 is provided with the first amplifier A1～the 4th amplifier A4, described tach signal amplifying circuit 11 is provided with the 5th amplifier A5, described temperature signal amplifying circuit 12 is provided with the 6th amplifier A6, described signals collecting trigger circuit 9 are provided with USB integrated circuit board 31, and this USB integrated circuit board 31 is provided with the first analog input end A-1, the second analog input end A-2, the 3rd analog input end V, the 4th analog input end A-3, the 5th analog input end A-4 and the 6th analog input end T;
The output signal of a slice foil gauge 15 in the described cylindrical structure that is arranged in vertical described elastic body 16 in the both sides of axial plane is after the 3rd potentiometer W3 and the tenth resistance R 10, transfer signals to the inverting input of described the 3rd amplifier A3, the inverting input of the 3rd amplifier A3 also and after the 11 resistance R 11 is connected with the output terminal of described the 3rd amplifier A3, in-phase input end string the 12 resistance R 12 back ground connection of described the 3rd amplifier A3, the output terminal of the 3rd amplifier A3 is connected with described the 4th analog input end A-3;
The output signal of another sheet foil gauge 15 in the described cylindrical structure that is arranged in vertical described elastic body 16 in the both sides of axial plane is after the 4th potentiometer W4 and the 13 resistance R 13, transfer signals to the inverting input of described the 4th amplifier A4, the inverting input of the 4th amplifier A4 also and after the 14 resistance R 14 is connected with the output terminal of described the 4th amplifier A4, in-phase input end string the 15 resistance R 15 back ground connection of described the 4th amplifier A4, the output terminal of the 4th amplifier A4 is connected with described the 5th analog input end A-4;
The output signal of described revolution speed sensing device is after the 7th resistance R 7, transfer signals to the inverting input of described the 5th amplifier A5, the inverting input of the 5th amplifier A5 also and after the 8th resistance R 8 is connected with the output terminal of described the 5th amplifier A5, in-phase input end string the 9th resistance R 9 back ground connection of described the 5th amplifier A5, the output terminal of the 5th amplifier A5 is connected with described the 3rd analog input end V;
The output signal of described temperature sensing device is after resistance bridge R and the 20 resistance R 20, transfer signals to the inverting input of the 6th amplifier A6, the inverting input of the 6th amplifier A6 also and after the 21 resistance R 21 is connected with the output terminal of described the 6th amplifier A6, in-phase input end string the 22 resistance R 22 back ground connection of described the 6th amplifier A6, the output terminal of described the 6th amplifier A6 is connected with described the 6th analog input end T.
Input end string the 16 resistance R 16 backs of described resistance bridge R are connected with an end of the 17 resistance R 17, the other end of the 17 resistance R 17 is connected with the output terminal of resistance bridge R, the input end of described resistance bridge R is also gone here and there the 18 resistance R 18 back and is connected with an end of the 19 resistance R 19, the other end of the 19 resistance R 19 is connected with the output terminal of resistance bridge R, and also going here and there respectively between an end of described the 17 resistance R 17 and the end of the 19 resistance R 19 has the 5th potentiometer W5 and capacitor C.
As shown in figure 12, described signals collecting trigger circuit 9 also are provided with the first trigger C1～the 4th trigger C4 and comparer 32, described USB integrated circuit board 31 also is provided with high-pressure side VCC and digitally holds DGND, the one one digital end B0～the one or the three digital end B2 of described comparer 32 is connected with the digitally end DGND of described USB integrated circuit board 31, the one or four digital end B3 of described comparer 32 is connected with the high-pressure side VCC of described USB integrated circuit board 31, described comparer 32 also is provided with first comparison signal output terminal FA＞B and second comparison signal output terminal FA＜B, described first comparison signal output terminal FA＞B is connected with the trigger pip input end ATR of described USB integrated circuit board 31, described second comparison signal output terminal FA＜B is connected with the first input end of first AND circuit 33, second input end of this first AND circuit 33 is connected with the speed digital signal output end DI2 of described comparer 32, and the output terminal of described first AND circuit 33 all is connected with the triggering input end of the described first trigger C1～the 4th trigger C4;
The J/K trigger end of the described first trigger C1 all is connected with the high-pressure side VCC of described USB integrated circuit board 31, the triggering output terminal of the described first trigger C1 is connected with the J/K trigger end of the described second trigger C2, the triggering output terminal of the described first trigger C1 also is connected with the 21 digital end A0 of second AND circuit 34, the triggering output terminal of the described first trigger C1 also is connected with the first input end of second AND circuit 34
The triggering output terminal of the described second trigger C2 is connected with the two or two digital end A1 of described comparer 32, the triggering output terminal of the described second trigger C2 also is connected with second input end of second AND circuit 34, the output terminal of this second AND circuit 34 is connected with the input end of first OR circuit 35, the output terminal of this first OR circuit 35 is connected with the J/K trigger end of described the 3rd trigger C3 respectively, the output terminal of the 3rd trigger C3 is connected with the two or three digital end A2 of described comparer 32, the output terminal of described first OR circuit 35 divide and the output terminal of described the 3rd trigger C3 also respectively with first of the 3rd AND circuit 36, two input ends connect, the output terminal of the 3rd AND circuit 36 is connected with the input end of second OR circuit 37, the output terminal of this second OR circuit 37 is connected with the J/K trigger end of described the 4th trigger C4, and the output terminal of the 4th trigger C4 is connected with the two or four digital end A3 of described comparer 32.
Described USB integrated circuit board 31 also is provided with first and quickens digital signal output end DI0～4th acceleration digital signal output end DI4 and temperature digital signal output part DI5, and described first acceleration digital signal output end DI0～4 quickens digital signal output end DI4, speed digital signal output end DI2 and temperature digital signal output part DI5 exports digital signal to computing machine 8.
Described rotating speed code-disc 2 is sleeved in the described housing 1.
The intelligent bearing monitor is installed in the inner ring rotation, on the motionless bearing in outer ring, the bearing inner race rotation, drive 2 rotations of rotating speed code-disc, 3 pairs of bearing accelerations of acceleration sensing device on the housing 1 that is installed in are monitored in real time, revolution speed sensing device 4 keeps the rotating speed of rotating speed code-disc is monitored in real time, thereby measure the rotating speed of bearing, the temperature of temperature sensing device 5 perception bearings.
Embodiment two
Shown in Figure 13 to 15, described rotating speed code-disc 2 is sleeved on outside the described housing 1.
The intelligent bearing monitor is installed in outer ring rotation in this enforcement, and on the motionless bearing of inner ring, the housing 1 of intelligent bearing monitor is sleeved in the described rotating speed code-disc 2, and other structures and principle of work are identical with described the foregoing description one.
Claims (10)
1. coupling type intelligent bearing monitoring device, it is characterized in that: comprise housing (1) and rotating speed code-disc (2), described rotating speed code-disc (2) is the circular code-disc with housing (1) concentric, and the intellectual monitoring device axially inserts the rotation circle of described bearing and not gap location between the moving-coil and bearing interference fit;
Be embedded with two strain chip acceleration sensing devices (3), a revolution speed sensing device (4) and a temperature sensing device (5) on the described housing (1), the center line of described two strain chip acceleration sensing devices (3) all is parallel to the center line of described housing (1), both angles are 90 °, described revolution speed sensing device (4) radially be embedded in described housing (1) on, the center line of described temperature sensing device (5) is parallel to the center line of described housing (1); Circuit board (6) also is installed on the end face of described housing (1), and described two strain chip acceleration sensing devices (3), a revolution speed sensing device (4) and a temperature sensing device (5) all are connected with input wires terminal on the described circuit board (6) through output line;
Also be provided with signals collecting trigger circuit (9) on the described circuit board (6), acceleration signal amplifying circuit (10), tach signal amplifying circuit (11) and temperature signal amplifying circuit (12), the input end of described acceleration signal amplifying circuit (10) is connected with the output terminal of described acceleration sensing device (3), the input end of described tach signal amplifying circuit (11) is connected with the output terminal of described revolution speed sensing device (4), the input end of described temperature signal amplifying circuit (12) is connected with the output terminal of described temperature sensing device (5), described acceleration signal amplifying circuit (10), tach signal amplifying circuit (11) and temperature signal amplifying circuit (12) all are provided with signal output part, each signal output part respectively with the acceleration signal input end of described signals collecting trigger circuit (9), the tach signal input end is connected with the temperature signal input end, the signal that the output terminal output of described signals collecting trigger circuit (9) collects is given computing machine (8) and is handled.
2. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: each described strain chip acceleration sensing device (3) is by four foil gauges (15), elastic body (16) and mass (17) are formed, the bottom of described elastic body (16) is an isosceles trapezoid template structure (13), top is cylindrical structure, described isosceles trapezoid template structure (13) has first through hole (14) and second through hole (14 ') along the upper and lower of center line, two foil gauges (15) in described four foil gauges (15) are arranged in the upper and lower of axial plane in the cylindrical structure of described elastic body (16), described other two foil gauges (15) are arranged in the left and right sides of axial plane in the cylindrical structure of vertical described elastic body (16), described four foil gauges (15) are identical with the distance of described isosceles trapezoid template structure (13), described two foil gauges (15) are respectively drawn a lead, two leads all pass first through hole (14) back and are connected with the first signal for faster terminals of described circuit board (6), other two foil gauges (15) are also all respectively drawn a lead, these two leads pass second through hole (14 ') back respectively and are connected with the second signal for faster terminals of described circuit board (6), described mass (17) is a cylindrical structural, and the end face of this mass (17) and the upper end of described elastic body (16) are consolidated with fixing glue;
Be provided with counterbore (18) in the described housing (1), the aperture of this counterbore (18) is consistent with the shape of described isosceles trapezoid template structure (13), thickness is identical, coat fixing glue on the upper inside wall of counterbore (18), the elastic body (16) that the upper end is fixed with mass (17) is packed in the described counterbore (18).
3. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: described revolution speed sensing device (4) is by magnetic pole (19), solenoid (20), speed probe shell (21), permanent magnet (22) and " L " type lead-in wire (23) are formed, the bottom of described speed probe shell (21) is a hexagonal nut 24, this speed probe shell (21) bottom is a helicitic texture for one section, described magnetic pole (19) is a cylindrical structural, this magnetic pole (19) runs through the bottom of described speed probe shell (21), described speed probe shell (21) is stretched out in the lower end of described magnetic pole (19), the upper end of this magnetic pole (19) is positioned at speed probe shell (21), described magnetic pole (19) top is connected with the lower end of described permanent magnet (22), the upper end of described permanent magnet (22) is connected with an end of " L " type lead-in wire (23), described solenoid (20) is installed on the inwall of described speed probe shell (21), and described magnetic pole (19) passes described solenoid (20) center pit;
The revolution speed sensing device that described housing (1) inwall has is radially installed counterbore, it is female thread structure that this revolution speed sensing device is installed counterbore, the hexagonal nut 24 of described speed probe shell (21) by the bottom is installed in the revolution speed sensing device of described housing (1) and installs in the counterbore, and described " L " type lead-in wire (23) passes that described housing (1) is provided with " L " the type through hole.
4. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: described temperature sensing device (5) is by metal sleeve (25), the electric heating utmost point (26), insulating material (27), nut (28) and temperature signal lead-in wire (29) is installed to be formed, the described metal sleeve (25) and the electric heating utmost point (26) all are installed in the bottom of described installation nut (28), described insulating material (27) is filled between the described metal sleeve (25) and the electric heating utmost point (26), the outer wall of described installation nut (28) is provided with external thread, and this is installed nut (28) upper end and is connected with an end of described temperature signal lead-in wire (29);
Described housing (1) is provided with through hole (30), this through hole (30) bottom, the middle part is three sections ladder circular holes that diameter is different with top, the middle part inwall of described through hole (30) is a female thread structure, described through hole (30) lower diameter is greater than the middle part diameter, the middle part diameter is greater than upper diameter, the middle part of described through hole (30) is threaded with described installation nut (28), described temperature sensing device (5) is installed in the described through hole (30) by nut (28) is installed, described metal sleeve (25), the electric heating utmost point (26), insulating material (27) all is positioned at through hole (30) bottom, and the temperature signal lead-in wire (29) that the upper end of described installation nut (28) connects passes the upper hole of described through hole (30).
5. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: described acceleration signal amplifying circuit (10) is provided with first～the 4th amplifier (A1～A4), described tach signal amplifying circuit (11) is provided with the 5th amplifier (A5), described temperature signal amplifying circuit (12) is provided with the 6th amplifier (A6), described signals collecting trigger circuit (9) are provided with USB integrated circuit board (31), and this USB integrated circuit board (31) is provided with first analog input end (A-1), second analog input end (A-2), the 3rd analog input end (V), the 4th analog input end (A-3), the 5th analog input end (A-4) and the 6th analog input end (T);
Foil gauge (15) output signal that is arranged in the top of axial plane in the cylindrical structure of described elastic body (16) is behind first potentiometer (W1) and first resistance (R1), transfer signals to the inverting input of described first amplifier (A1), the inverting input of this first amplifier (A1) second resistance also in parallel (R2) back is connected with the output terminal of described first amplifier (A1), in-phase input end string the 3rd resistance (R3) the back ground connection of described first amplifier (A1), the output terminal of described first amplifier (A1) is connected with described first analog input end (A-1);
Foil gauge (15) output signal of the bottom of axial plane is behind second potentiometer (W2) and the 4th resistance (R4) in the cylindrical structure of described elastic body (16), transfer signals to the inverting input of described second amplifier (A2), the inverting input of this second amplifier (A2) also is connected with the output terminal of described second amplifier (A2) the 5th resistance in parallel (R5) back, in-phase input end string the 6th resistance (R6) the back ground connection of described second amplifier (A2), the output terminal of this second amplifier (A2) is connected with described second analog input end (A-2);
The output signal of a slice foil gauge (15) in the described cylindrical structure that is arranged in vertical described elastic body (16) in the both sides of axial plane is behind the 3rd potentiometer (W3) and the tenth resistance (R10), transfer signals to the inverting input of described the 3rd amplifier (A3), the inverting input of the 3rd amplifier (A3) also and behind the 11 resistance (R11) is connected with the output terminal of described the 3rd amplifier (A3), in-phase input end string the 12 resistance (R12) the back ground connection of described the 3rd amplifier (A3), the output terminal of the 3rd amplifier (A3) is connected with described the 4th analog input end (A-3);
The output signal of another sheet foil gauge (15) in the described cylindrical structure that is arranged in vertical described elastic body (16) in the both sides of axial plane is behind the 4th potentiometer (W4) and the 13 resistance (R13), transfer signals to the inverting input of described the 4th amplifier (A4), the inverting input of the 4th amplifier (A4) also and behind the 14 resistance (R14) is connected with the output terminal of described the 4th amplifier (A4), in-phase input end string the 15 resistance (R15) the back ground connection of described the 4th amplifier (A4), the output terminal of the 4th amplifier (A4) is connected with described the 5th analog input end (A-4);
The output signal of described revolution speed sensing device is behind the 7th resistance (R7), transfer signals to the inverting input of described the 5th amplifier (A5), the inverting input of the 5th amplifier (A5) also and behind the 8th resistance (R8) is connected with the output terminal of described the 5th amplifier (A5), in-phase input end string the 9th resistance (R9) the back ground connection of described the 5th amplifier (A5), the output terminal of the 5th amplifier (A5) is connected with described the 3rd analog input end (V);
The output signal of described temperature sensing device is behind resistance bridge (R) and the 20 resistance (R20), transfer signals to the inverting input of the 6th amplifier (A6), the inverting input of the 6th amplifier (A6) also and behind the 21 resistance (R21) is connected with the output terminal of described the 6th amplifier (A6), in-phase input end string the 22 resistance (R22) the back ground connection of described the 6th amplifier (A6), the output terminal of described the 6th amplifier (A6) is connected with described the 6th analog input end (T).
6. according to the described coupling type intelligent bearing monitoring of claim 5 device, it is characterized in that: input end string the 16 resistance (R16) back of described resistance bridge (R) is connected with an end of the 17 resistance (R17), the other end of the 17 resistance (R17) is connected with the output terminal of resistance bridge (R), the input end of described resistance bridge (R) is also gone here and there the 18 resistance (R18) back and is connected with an end of the 19 resistance (R19), the other end of the 19 resistance (R19) is connected with the output terminal of resistance bridge (R), and also going here and there respectively between an end of described the 17 resistance (R17) and the end of the 19 resistance (R19) has the 5th potentiometer (W5) and electric capacity (C).
7. according to claim 1 or 5 described coupling type intelligent bearing monitoring devices, it is characterized in that: described signals collecting trigger circuit (9) also are provided with first～the 4th trigger (C1～C4) and comparer (32), described USB integrated circuit board (31) also is provided with high-pressure side (VCC) and digitally holds (DGND), the one one～the one or three digital end of described comparer (32) (B0～B2) all be connected with the digitally end (DGND) of described USB integrated circuit board (31), the one or four digital end (B3) of described comparer (32) is connected with the high-pressure side (VCC) of described USB integrated circuit board (31), and described comparer (32) also is provided with the first comparison signal output terminal (F
A＞B) and the second comparison signal output terminal (F
A＜B), the described first comparison signal output terminal (F
A＞B) be connected the described second comparison signal output terminal (F with the trigger pip input end (ATR) of described USB integrated circuit board (31)
A＜B) be connected with the first input end of first AND circuit (33), second input end of this first AND circuit (33) is connected with the speed digital signal output end (DI2) of described comparer (32), and all (the triggering input end of C1～C4) is connected the output terminal of described first AND circuit (33) with described first～the 4th trigger;
The J/K trigger end of described first trigger (C1) all is connected with the high-pressure side (VCC) of described USB integrated circuit board (31), the triggering output terminal of described first trigger (C1) is connected with the J/K trigger end of described second trigger (C2), the triggering output terminal of described first trigger (C1) also is connected with the 21 digital end (A0) of second AND circuit (34), and the triggering output terminal of described first trigger (C1) also is connected with the first input end of second AND circuit (34);
The triggering output terminal of described second trigger (C2) is connected with the two or two digital end (A1) of described comparer (32), the triggering output terminal of described second trigger (C2) also is connected with second input end of second AND circuit (34), the output terminal of this second AND circuit (34) is connected with the input end of first OR circuit (35), the output terminal of this first OR circuit (35) is connected with the J/K trigger end of described the 3rd trigger (C3) respectively, the output terminal of the 3rd trigger (C3) is connected with the two or three digital end (A2) of described comparer (32), the output terminal of described first OR circuit (35) divide and the output terminal of described the 3rd trigger (C3) also respectively with first of the 3rd AND circuit (36), two input ends connect, the output terminal of the 3rd AND circuit (36) is connected with the input end of second OR circuit (37), the output terminal of this second OR circuit (37) is connected with the J/K trigger end of described the 4th trigger (C4), and the output terminal of the 4th trigger (C4) is connected with the two or four digital end (A3) of described comparer (32).
8. according to the described coupling type intelligent bearing monitoring of claim 7 device, it is characterized in that: described USB integrated circuit board (31) also is provided with first～the 4th and quickens digital signal output end (DI0, DI1, DI3, DI4) and temperature digital signal output part (DI5), and described first～the 4th quickens digital signal output end (DI0, DI1, DI3, DI4), speed digital signal output end (DI2) and temperature digital signal output part (DI5) output digital signal to computing machine (8).
9. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: described rotating speed code-disc (2) is sleeved in the described housing (1).
10. according to the described coupling type intelligent bearing monitoring of claim 1 device, it is characterized in that: described rotating speed code-disc (2) is sleeved on outside the described housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201405021U CN201680963U (en) | 2010-03-25 | 2010-03-25 | Coupled intelligent bearing monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201405021U CN201680963U (en) | 2010-03-25 | 2010-03-25 | Coupled intelligent bearing monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680963U true CN201680963U (en) | 2010-12-22 |
Family
ID=43346003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201405021U Expired - Lifetime CN201680963U (en) | 2010-03-25 | 2010-03-25 | Coupled intelligent bearing monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819092A (en) * | 2010-03-25 | 2010-09-01 | 重庆大学 | Coupling type intelligent bearing monitoring device arranged on bearing |
| CN109791091A (en) * | 2016-10-14 | 2019-05-21 | Zf 腓德烈斯哈芬股份公司 | Acoustic Bridge |
| CN115833491A (en) * | 2021-12-30 | 2023-03-21 | 深圳市速腾聚创科技有限公司 | Angle calculation method and device, storage medium and electronic equipment |
-
2010
- 2010-03-25 CN CN2010201405021U patent/CN201680963U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819092A (en) * | 2010-03-25 | 2010-09-01 | 重庆大学 | Coupling type intelligent bearing monitoring device arranged on bearing |
| CN109791091A (en) * | 2016-10-14 | 2019-05-21 | Zf 腓德烈斯哈芬股份公司 | Acoustic Bridge |
| CN115833491A (en) * | 2021-12-30 | 2023-03-21 | 深圳市速腾聚创科技有限公司 | Angle calculation method and device, storage medium and electronic equipment |
| CN115833491B (en) * | 2021-12-30 | 2023-08-25 | 深圳市速腾聚创科技有限公司 | Angle calculation method and device, storage medium and electronic equipment |
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Granted publication date: 20101222 Effective date of abandoning: 20120201 |