CN102798500B - System and method for testing barycenter of road roller steel wheel and vibration amplitude uniformity of road roller steel wheel - Google Patents
System and method for testing barycenter of road roller steel wheel and vibration amplitude uniformity of road roller steel wheel Download PDFInfo
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- CN102798500B CN102798500B CN201210294543.XA CN201210294543A CN102798500B CN 102798500 B CN102798500 B CN 102798500B CN 201210294543 A CN201210294543 A CN 201210294543A CN 102798500 B CN102798500 B CN 102798500B
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Abstract
The invention discloses a system and a method for testing barycenter of a road roller steel wheel and vibration amplitude uniformity of the road roller steel wheel. The system comprises a steel wheel barycenter testing system, a steel wheel vibration amplitude uniformity testing system, a hydraulic system and a control system, wherein the steel wheel barycenter testing system comprises a leveling oil cylinder, a force transducer, a testing platform, a supporting wheel, a horizontal measuring instrument and an angle sensor; the steel wheel vibration amplitude uniformity testing system comprises a front frame support and an acceleration sensor; and the control system comprises a microprocessor module, an analog/digital (A/D) conversion circuit module and human-computer interaction equipment. The method comprises the following steps: testing the barycenter position of the road roller steel wheel: installing, leveling, acquiring angle and pressure signals, and determining and displaying the barycenter position of the road roller steel wheel; and testing the vibration amplitude uniformity of the road roller steel wheel: fixing, acquiring an acceleration signal, and determining and displaying the vibration amplitude deviation delta of the road roller steel wheel. The system and the method are novel and reasonable in design, convenient and fast in use and operation, high in testing efficiency, high in precision, high in practicability and high in popularization and application value.
Description
Technical field
The invention belongs to mechanical engineering technical field, especially relate to a kind of street roller steel wheel barycenter and amplitude uniformity test system and method.
Background technology
The amplitude of vibroll is the Key Performance Indicator of street roller, it directly has influence on the compaction quality of street roller road pavement, the amplitude of wheel cross direction is evenly to guarantee the inhomogeneity basic demand of compacting, when vibrating wheels the right and left amplitude excursion is larger, also can affect the linear driving performance of street roller.Through experimental study, the skew of vibrating wheels barycenter is to affect the inhomogeneity one of the main reasons of amplitude of road roller, and owing to manufacturing the reasons such as machining precision, steel wheel barycenter can not be completely in geometric center, and for street roller being carried out to dynamics research, must know the exact position of steel wheel barycenter and the amplitude of main positions thereof.Prior art is normally after final assembly is good, by site test, record the amplitude homogeneity of steel wheel, concrete grammar is: street roller steel wheel is unsettled and with steel wheel rubber tyre, support the steel wheel of street roller, and make street roller in vibrating without the outer state that carries, the amplitude of measurement steel wheel.When occurring that amplitude is inhomogeneous, be difficult to by regulating steel wheel centroid position to realize the even of amplitude, and site test is measured the process more complicated of amplitude of road roller.In prior art, also do not have can be before final assembly the device and method of direct-detection street roller steel wheel barycenter and amplitude.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, provide a kind of simple in structure, volume is little, floor area is little, modern design is reasonable, realize convenient, use simple operation, realize street roller steel wheel barycenter and amplitude uniformity test system that cost is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of street roller steel wheel barycenter and amplitude uniformity test system, described street roller steel wheel is arranged on front frame of road roller and by bolt and is fixedly connected with front frame of road roller by vibrating shaft, on described front frame of road roller, be provided with for driving the vibrating motor of vibrating shaft vibration, the output shaft of described vibrating motor is connected with vibrating shaft, it is characterized in that: this street roller steel wheel barycenter and amplitude uniformity test system comprise steel wheel barycenter test macro, steel wheel amplitude uniformity test system and hydraulic system, and for the test data of steel wheel barycenter test macro and steel wheel amplitude uniformity test system is carried out to analyzing and processing the control system for hydraulic system is controlled, described steel wheel barycenter test macro comprises three leveling cyclinders, the corresponding test platform that is arranged on three force cells on three leveling cyclinder piston rod tops and is arranged on three force cell tops respectively, the top of described test platform is symmetrically arranged with two for supporting the support wheel of street roller steel wheel, the top of described test platform is provided with for test platform being carried out to horizontal measuring instrument and the angular transducer for the rotational angle of street roller steel wheel is measured of leveling, three described leveling cyclinders and three all ABC layings triangular in shape of described force cell, described triangle ABC is isosceles triangle or equilateral triangle, described hydraulic system is connected with leveling cyclinder with vibrating motor and is used to vibrating motor and leveling cyclinder that hydraulic power is provided, described steel wheel amplitude uniformity test system comprises that a plurality of described acceleration transducers are axially laid on described street roller steel wheel equably along described street roller steel wheel for front frame of road roller being supported on to the front frame bearing on its top and being arranged on a plurality of acceleration transducers on street roller steel wheel and for the vibration acceleration at street roller steel wheel diverse location place is detected, described control system comprises microprocessor module and A/D change-over circuit module and the human-computer interaction device of joining with microprocessor module, a plurality of described force cells, described angular transducer and a plurality of described acceleration transducer all join with described A/D change-over circuit module, and described hydraulic system and described microprocessor module join.
Above-mentioned street roller steel wheel barycenter and amplitude uniformity test system, is characterized in that: the quantity of described acceleration transducer is three or five.
Above-mentioned street roller steel wheel barycenter and amplitude uniformity test system, it is characterized in that: damping block back up pad is installed on described front frame of road roller, the damping block between described street roller steel wheel and described damping block back up pad is installed in described damping block back up pad.
Above-mentioned street roller steel wheel barycenter and amplitude uniformity test system, it is characterized in that: described hydraulic system comprises supply reservoir, oil filter and the hydraulic pump connecting successively by oil pipe, and four solenoid valves that are connected with hydraulic pump by oil pipe, wherein three solenoid valve difference correspondences are connected with three leveling cyclinders, another one solenoid valve is connected with vibrating motor, connect on the oil pipe of described oil filter and hydraulic pump and be connected with surplus valve, described surplus valve is connected with overflow fuel tank by oil pipe; Described hydraulic pump and four described solenoid valves all join with described microprocessor module.
Above-mentioned street roller steel wheel barycenter and amplitude uniformity test system, is characterized in that: described solenoid valve is three position four-way electromagnetic valve.
Above-mentioned street roller steel wheel barycenter and amplitude uniformity test system, is characterized in that: described human-computer interaction device is touch LCD screen or computing machine.
The present invention also provides street roller steel wheel barycenter and the amplitude homogeneity testing method that a kind of data processing speed is fast, data-handling capacity is strong, precision is high, practical, it is characterized in that the method comprises the following steps:
Step 1, the test of street roller steel wheel centroid position, detailed process is as follows:
Step 101, installation and leveling: first, the front frame of road roller connecting as one, street roller steel wheel and vibrating motor are placed on to front frame bearing top, make front frame of road roller be supported on described front frame bearing top, and make described street roller steel wheel be supported on two described support wheel tops; Then, will back out for being fixedly connected with the bolt of street roller steel wheel and front frame of road roller, described street roller steel wheel can be rotated on described vibrating shaft; Then, on described human-computer interaction device, input leveling cyclinder and control parameter, microprocessor module receives leveling cyclinder and controls parameter and realize the control to three described leveling cyclinders by controlling hydraulic pump with three solenoid valves that are connected with three described leveling cyclinders, makes described test platform level be positioned at the top of a plurality of described force cells;
The collection of step 102, angle and pressure signal: first, by described A/D change-over circuit module, three detected pressure signals of described force cell are carried out to A/D conversion, obtain three force value F
a', F
b' and F
c', by microprocessor module to three force value F after A/D change-over circuit resume module
a', F
b' and F
c' gather; Then, described street roller steel wheel is manually turned over to θ angle, the rotational angle signal of street roller steel wheel angular transducer being detected by described A/D change-over circuit module and three detected pressure signals of described force cell carry out A/D conversion, obtain angle value θ and three force value F
a, F
band F
c, by microprocessor module to the angle value θ after A/D change-over circuit resume module and three force value F
a, F
band F
cgather;
Determining of step 103, street roller steel wheel centroid position: described microprocessor module calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, obtain the centroid position of described street roller steel wheel;
The demonstration of step 104, street roller steel wheel centroid position: described microprocessor module sends display control signal to human-computer interaction device, carries out simultaneous display by human-computer interaction device to the street roller steel wheel centroid position of determining in step 103;
Step 2, street roller steel wheel amplitude uniformity test, detailed process is as follows:
Step 201, fixing: will screw on for being fixedly connected with the bolt of street roller steel wheel and front frame of road roller, described street roller steel wheel is fixedly connected on described front frame of road roller;
The collection of step 202, acceleration signal: input street roller steel wheeled vibratory and control parameter on described human-computer interaction device, microprocessor module receives street roller steel wheeled vibratory and controls parameter and realize the control to described street roller steel wheeled vibratory by controlling hydraulic pump with the solenoid valve being connected with described vibrating motor; Meanwhile, the vibration acceleration signal at the street roller steel wheel diverse location place of a plurality of acceleration transducers being detected by described A/D change-over circuit module carries out A/D conversion, obtains a plurality of accekeration a
1, a
2..., a
i, then by microprocessor module to the accekeration a after A/D change-over circuit resume module
1, a
2..., a
igather, wherein, the quantity that i is described acceleration transducer;
Step 203, street roller steel wheel amplitude excursion δ determine: described microprocessor module calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
icarry out comprehensive analysis processing, obtain described street roller steel wheel amplitude excursion δ;
The demonstration of step 204, street roller steel wheel amplitude excursion δ: described microprocessor module sends display control signal to human-computer interaction device, carries out simultaneous display by human-computer interaction device to the street roller steel wheel amplitude excursion δ determining in step 203.
Above-mentioned method, is characterized in that: microprocessor module described in step 103 calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, its overall treatment analytic process comprises the following steps:
Step 1031, set up rectangular coordinate system in space: it is true origin that described microprocessor module be take the mid point of described triangle ABC base BC, and take described triangle ABC base BC as X-axis, take perpendicular to the height of described triangle ABC base BC as Y-axis, take and cross true origin and be Z axis perpendicular to the straight line of described triangle ABC place plane, set up rectangular coordinate system in space;
Step 1032, described microprocessor module call described pressure and angle-data processing module and according to formula:
Before described street roller steel wheel is turned over to θ angle, described force cell detects and treated force value F
a', and described street roller steel wheel turns over after θ angle, and described angular transducer detects and treated angle value θ and three described force cells detect also treated force value F
a, F
band F
cbe converted to street roller steel wheel centroid position coordinate (X
g, Y
g, Z
g), wherein, H is the height of described isosceles triangle or described equilateral triangle, F
a' turn over the force value that pressure signal that the force cell of θ angle anteposition in A place, described triangle ABC summit detect obtains after described A/D change-over circuit resume module for described street roller steel wheel, θ is the angle that turns over of described street roller steel wheel and the angle value that obtains after described A/D change-over circuit resume module for described angular transducer institute detection angles value, F
a, F
band F
cbeing respectively described street roller steel wheel turns over and is positioned at three force value that pressure signal that three described force cells at described triangle ABC summit A, B and C place detect obtains after described A/D change-over circuit resume module after θ angle.
Above-mentioned method, is characterized in that: microprocessor module described in step 203 calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
ithe process of carrying out comprehensive analysis processing is: described microprocessor module calls described acceleration information processing module and according to formula
A plurality of described acceleration transducer is detected to also treated acceleration signal and be converted to street roller steel wheel amplitude excursion δ, wherein, max (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin maximal value, min (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin minimum value, AVG (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
imean value.
Above-mentioned method, is characterized in that: the value of described i is 3 or 5.
The present invention compared with prior art has the following advantages:
1, the one-piece construction of street roller steel wheel barycenter of the present invention and amplitude uniformity test system is simple, and volume is little, and floor area is little, can to street roller steel wheel barycenter and amplitude homogeneity, test in any place, and rationally novel in design, it is convenient to realize.
2, use simple operation of the present invention, street roller steel wheel barycenter and amplitude uniformity test efficiency are high, intuitive display result.
3, the present invention can be before street roller final assembly direct-detection street roller steel wheel barycenter and amplitude homogeneity, can accurately know the exact position of street roller steel wheel barycenter and the amplitude of main positions thereof, convenient street roller is carried out to dynamics research.
4, of the present invention practical, realize cost low, contribute to propose innovative approach, and then improve the operation quality of street roller, result of use is good, and application value is high.
In sum, the present invention is novel in design rationally, and it is convenient to realize, and uses simple operation, street roller steel wheel barycenter and amplitude uniformity test efficiency is high, precision is high, practical, realizes cost low, and result of use is good, and application value is high.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of street roller steel wheel barycenter of the present invention and amplitude uniformity test system.
Fig. 2 is the structural representation of steel wheel barycenter test macro of the present invention and steel wheel amplitude uniformity test system.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is hydraulic system of the present invention and annexation schematic diagram with vibrating motor and leveling cyclinder.
Fig. 5 is the annexation schematic diagram of control system of the present invention and other each parts.
Fig. 6 is the method flow diagram of street roller steel wheel barycenter of the present invention and amplitude homogeneity testing method.
Description of reference numerals:
1-leveling cyclinder; 2-force cell; 3-test platform;
4-horizontal measuring instrument; 5-angular transducer; 6-support wheel;
7-front frame bearing; 8-front frame of road roller; 9-damping block;
10-street roller steel wheel; 11-acceleration transducer; 12-vibrating motor;
13-damping block back up pad; 14-microprocessor module; 15-A/D change-over circuit module;
16-human-computer interaction device; 17-hydraulic system; 18-supply reservoir;
19-oil filter; 20-hydraulic pump; 21-solenoid valve;
22-surplus valve; 23-overflow fuel tank.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, street roller steel wheel barycenter of the present invention and amplitude uniformity test system, described street roller steel wheel 10 is arranged on front frame of road roller 8 and by bolt and is fixedly connected with front frame of road roller 8 by vibrating shaft, on described front frame of road roller 8, be provided with for driving the vibrating motor 12 of vibrating shaft vibration, the output shaft of described vibrating motor 12 is connected with vibrating shaft, the present invention includes steel wheel barycenter test macro, steel wheel amplitude uniformity test system and hydraulic system 17, and for the test data of steel wheel barycenter test macro and steel wheel amplitude uniformity test system is carried out to analyzing and processing the control system for hydraulic system 17 is controlled, described steel wheel barycenter test macro comprises three leveling cyclinders 1, correspondence is arranged on three force cells 2 and the test platform 3 that is arranged on three force cell 2 tops on three leveling cyclinder 1 piston rod tops respectively, the top of described test platform 3 is symmetrically arranged with two for supporting the support wheel 6 of street roller steel wheel 10, the top of described test platform 3 is provided with for test platform 3 being carried out to horizontal measuring instrument 4 and the angular transducer 5 for the rotational angle of street roller steel wheel 10 is measured of leveling, three described leveling cyclinders 1 and three all ABC layings triangular in shape of described force cell 2, described triangle ABC is isosceles triangle or equilateral triangle, described hydraulic system 17 is connected with leveling cyclinder 1 with vibrating motor 12 and is used to vibrating motor 12 and leveling cyclinder 1 that hydraulic power is provided, described steel wheel amplitude uniformity test system comprises that a plurality of described acceleration transducers 11 are axially laid on described street roller steel wheel 10 equably along described street roller steel wheel 10 for front frame of road roller 8 being supported on to the front frame bearing 7 on its top and being arranged on a plurality of acceleration transducers 11 on street roller steel wheel 10 and for the vibration acceleration at street roller steel wheel 10 diverse location places is detected, described control system comprises microprocessor module 14 and A/D change-over circuit module 15 and the human-computer interaction device 16 of joining with microprocessor module 14, a plurality of described force cells 2, described angular transducer 5 and a plurality of described acceleration transducer 11 all join with described A/D change-over circuit module 15, and described hydraulic system 17 is joined with described microprocessor module 14.
In the present embodiment, the quantity of described acceleration transducer 11 is three or five.On described front frame of road roller 8, damping block back up pad 13 is installed, the damping block 9 between described street roller steel wheel 10 and described damping block back up pad 13 is installed in described damping block back up pad 13.
In conjunction with Fig. 4, in the present embodiment, described hydraulic system 17 comprises supply reservoir 18, oil filter 19 and the hydraulic pump 20 connecting successively by oil pipe, and four solenoid valves 21 that are connected with hydraulic pump 20 by oil pipe, wherein three solenoid valve 21 difference correspondences are connected with three leveling cyclinders 1, another one solenoid valve 21 is connected with vibrating motor 12, connects on the oil pipe of described oil filter 19 and hydraulic pump 20 and is connected with surplus valve 22, and described surplus valve 22 is connected with overflow fuel tank 23 by oil pipe; Described hydraulic pump 20 and four described solenoid valves 21 all join with described microprocessor module 14.
In the present embodiment, described solenoid valve 21 is three position four-way electromagnetic valve.The input port of three position four-way electromagnetic valve is connected with the delivery outlet of described hydraulic pump 20 by oil pipe, when three position four-way electromagnetic valve is connected with described leveling cyclinder 1, two delivery outlets of three position four-way electromagnetic valve are connected with oil return opening with the oil-in of described leveling cyclinder 1 by oil pipe is corresponding respectively; When three position four-way electromagnetic valve is connected with described vibrating motor 12, two delivery outlets of three position four-way electromagnetic valve are connected with oil return opening with the oil-in of described vibrating motor 12 by oil pipe is corresponding respectively.
In the present embodiment, described human-computer interaction device 16 is touch LCD screen or computing machine.
In conjunction with Fig. 6, street roller steel wheel barycenter of the present invention and amplitude homogeneity testing method, comprise the following steps:
Step 1, the 10 centroid position tests of street roller steel wheel, detailed process is as follows:
Step 101, installation and leveling: first, the front frame of road roller connecting as one 8, street roller steel wheel 10 and vibrating motor 12 are placed on to front frame bearing 7 tops, make front frame of road roller 8 be supported on described front frame bearing 7 tops, and make described street roller steel wheel 10 be supported on two described support wheel 6 tops; Then,, by backing out for being fixedly connected with the bolt of street roller steel wheel 10 and front frame of road roller 8, described street roller steel wheel 10 can be rotated on described vibrating shaft; Then, on described human-computer interaction device 16, input leveling cyclinder 1 and control parameter, microprocessor module 14 receives the control that leveling cyclinder 1 is controlled parameter and realized three described leveling cyclinders 1 with three solenoid valves 21 that are connected with three described leveling cyclinders 1 by controlling hydraulic pump 20, makes described test platform 3 levels be positioned at the top of a plurality of described force cells 2; Because the top of described test platform 3 is provided with for test platform 3 being carried out to the horizontal measuring instrument 4 of leveling, therefore, can be by the horizontality of test platform 3 described in the shown data artificial judgment of horizontal measuring instrument 4, when operating personnel are satisfied with not to horizontality, can also again on described human-computer interaction device 16, input leveling cyclinder 1 and control parameter, and described test platform 3 is carried out to secondary leveling.
The collection of step 102, angle and pressure signal: first, carry out A/D conversion by 15 pairs three detected pressure signals of described force cell 2 of described A/D change-over circuit module, obtain three force value F
a', F
b' and F
c', three force value F by 14 pairs of microprocessor modules after A/D change-over circuit module 15 is processed
a', F
b' and F
c' gather; Then, described street roller steel wheel 10 is manually turned over to θ angle, the rotational angle signal of the street roller steel wheel 10 being detected by 15 pairs of angular transducers 5 of described A/D change-over circuit module and three detected pressure signals of described force cell 2 carry out A/D conversion, obtain angle value θ and three force value F
a, F
band F
c, angle value θ and three force value F by 14 pairs of microprocessor modules after A/D change-over circuit module 15 is processed
a, F
band F
cgather;
Determining of step 103, street roller steel wheel 10 centroid positions: described microprocessor module 14 calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, obtain the centroid position of described street roller steel wheel 10;
In the present embodiment, microprocessor module described in step 103 14 calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, its overall treatment analytic process comprises the following steps:
Step 1031, set up rectangular coordinate system in space: it is true origin that described microprocessor module 14 be take the mid point of described triangle ABC base BC, and take described triangle ABC base BC as X-axis, take perpendicular to the height of described triangle ABC base BC as Y-axis, take and cross true origin and be Z axis perpendicular to the straight line of described triangle ABC place plane, set up rectangular coordinate system in space;
Step 1032, described microprocessor module 14 call described pressure and angle-data processing module and according to formula:
Before described street roller steel wheel 10 is turned over to θ angle, described force cell 2 detects and treated force value F
a', and described street roller steel wheel 10 turns over after θ angle, and described angular transducer 5 detects and treated angle value θ and three described force cells 2 detects also treated force value F
a, F
band F
cbe converted to street roller steel wheel 10 centroid position coordinate X
g, Y
g, Z
g, wherein, H is the height of described isosceles triangle or described equilateral triangle, F
a' turn over the force value of pressure signal acquisition after described A/D change-over circuit module 15 is processed that θ angle anteposition detects in the force cell 2 at A place, described triangle ABC summit for described street roller steel wheel 10, θ is the angle that turns over of described street roller steel wheel 10 and the angle value that obtains after described A/D change-over circuit module 15 is processed for 5 detection angles values of described angular transducer, F
a, F
band F
cbeing respectively described street roller steel wheel 10 turns over and is positioned at three force value that pressure signal that three described force cells 2 at described triangle ABC summit A, B and C place detect obtains after described A/D change-over circuit module 15 is processed after θ angle.
The demonstration of step 104, street roller steel wheel 10 centroid positions: described microprocessor module 14 sends display control signal to human-computer interaction device 16, carries out simultaneous display by street roller steel wheel 10 centroid positions of determining in 16 pairs of steps 103 of human-computer interaction device;
Step 2, street roller steel wheel 10 amplitude uniformity tests, detailed process is as follows:
Step 201, fixing: will screw on for being fixedly connected with the bolt of street roller steel wheel 10 and front frame of road roller 8, described street roller steel wheel 10 is fixedly connected on described front frame of road roller 8;
The collection of step 202, acceleration signal: input street roller steel wheel 10 vibration control parameters on described human-computer interaction device 16, microprocessor module 14 receives street roller steel wheel 10 vibration control parameters and realizes the control to described street roller steel wheel 10 vibrations by controlling hydraulic pump 20 with the solenoid valve 21 being connected with described vibrating motor 12; Meanwhile, the vibration acceleration signal at the street roller steel wheel 10 diverse location places of being detected by 15 pairs of a plurality of acceleration transducers 11 of described A/D change-over circuit module carries out A/D conversion, obtains a plurality of accekeration a
1, a
2..., a
i, then by 14 pairs of microprocessor modules the accekeration a after A/D change-over circuit module 15 is processed
1, a
2..., a
igather, wherein, i is the quantity of described acceleration transducer 11;
Step 203, street roller steel wheel 10 amplitude excursion δ determine: described microprocessor module 14 calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
icarry out comprehensive analysis processing, obtain described street roller steel wheel 10 amplitude excursion δ;
In the present embodiment, microprocessor module described in step 203 14 calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
ithe process of carrying out comprehensive analysis processing is: described microprocessor module 14 calls described acceleration information processing module and according to formula
A plurality of described acceleration transducer 11 is detected to also treated acceleration signal and be converted to street roller steel wheel 10 amplitude excursion δ, wherein, max (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin maximal value, min (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin minimum value, AVG (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
imean value.Particularly, in the present embodiment, the value of described i is 3 or 5.
The demonstration of step 204, street roller steel wheel 10 amplitude excursion δ: described microprocessor module 14 sends display control signal to human-computer interaction device 16, carries out simultaneous display by the street roller steel wheel 10 amplitude excursion δ that determine in 16 pairs of steps 203 of human-computer interaction device.
By being presented at street roller steel wheel 10 centroid positions and the street roller steel wheel 10 amplitude excursion δ on human-computer interaction device 16, operating personnel can be well understood to street roller steel wheel 10 barycenter and whether be offset geometric center, and can learn that street roller steel wheel 10 barycenter depart from the degree of geometric center, can also recognize the homogeneity of street roller steel wheel 10 amplitudes, and can judge the 10 centroid position skews of street roller steel wheel to the inhomogeneity influence degree of street roller steel wheel 10 amplitude, contribute to propose innovative approach, and then improve the operation quality of street roller.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. a street roller steel wheel barycenter and amplitude uniformity test system, described street roller steel wheel (10) is arranged on front frame of road roller (8) above and is fixedly connected with front frame of road roller (8) by bolt by vibrating shaft, on described front frame of road roller (8), be provided with for driving the vibrating motor (12) of vibrating shaft vibration, the output shaft of described vibrating motor (12) is connected with vibrating shaft, it is characterized in that: this street roller steel wheel barycenter and amplitude uniformity test system comprise steel wheel barycenter test macro, steel wheel amplitude uniformity test system and hydraulic system (17), and for the test data of steel wheel barycenter test macro and steel wheel amplitude uniformity test system is carried out to analyzing and processing the control system for hydraulic system (17) is controlled, described steel wheel barycenter test macro comprises three leveling cyclinders (1), correspondence is arranged on three force cells (2) on three leveling cyclinders (1) piston rod top and is arranged on the test platform (3) on three force cells (2) top respectively, the top of described test platform (3) is symmetrically arranged with two for supporting the support wheel (6) of street roller steel wheel (10), the top of described test platform (3) is provided with for test platform (3) being carried out to horizontal measuring instrument (4) and the angular transducer (5) for the rotational angle of street roller steel wheel (10) is measured of leveling, three described leveling cyclinders (1) and three described force cells (2) all ABC triangular in shape are laid, described triangle ABC is isosceles triangle or equilateral triangle, described hydraulic system (17) is connected with leveling cyclinder (1) with vibrating motor (12) and is used to vibrating motor (12) and leveling cyclinder (1) that hydraulic power is provided, described steel wheel amplitude uniformity test system comprises for front frame of road roller (8) being supported on to the front frame bearing (7) on its top and being arranged on a plurality of acceleration transducers (11) of street roller steel wheel (10) above and for the vibration acceleration at street roller steel wheel (10) diverse location place is detected, a plurality of described acceleration transducers (11) are axially laid on described street roller steel wheel (10) equably along described street roller steel wheel (10), described control system comprises microprocessor module (14) and A/D change-over circuit module (15) and the human-computer interaction device (16) of joining with microprocessor module (14), a plurality of described force cells (2), described angular transducer (5) and a plurality of described acceleration transducer (11) all join with described A/D change-over circuit module (15), and described hydraulic system (17) is joined with described microprocessor module (14).
2. according to street roller steel wheel barycenter claimed in claim 1 and amplitude uniformity test system, it is characterized in that: the quantity of described acceleration transducer (11) is three or five.
3. according to street roller steel wheel barycenter claimed in claim 1 and amplitude uniformity test system, it is characterized in that: damping block back up pad (13) is installed on described front frame of road roller (8), the damping block (9) being positioned between described street roller steel wheel (10) and described damping block back up pad (13) is installed in described damping block back up pad (13).
4. according to street roller steel wheel barycenter claimed in claim 1 and amplitude uniformity test system, it is characterized in that: described hydraulic system (17) comprises the supply reservoir (18) connecting successively by oil pipe, oil filter (19) and hydraulic pump (20), and four solenoid valves (21) that are connected with hydraulic pump (20) by oil pipe, wherein three solenoid valves (21) are corresponding is respectively connected with three leveling cyclinders (1), another one solenoid valve (21) is connected with vibrating motor (12), connect on the oil pipe of described oil filter (19) and hydraulic pump (20) and be connected with surplus valve (22), described surplus valve (22) is connected with overflow fuel tank (23) by oil pipe, described hydraulic pump (20) and four described solenoid valves (21) all join with described microprocessor module (14).
5. according to street roller steel wheel barycenter claimed in claim 4 and amplitude uniformity test system, it is characterized in that: described solenoid valve (21) is three position four-way electromagnetic valve.
6. according to street roller steel wheel barycenter claimed in claim 1 and amplitude uniformity test system, it is characterized in that: described human-computer interaction device (16) is touch LCD screen or computing machine.
7. a method of utilizing street roller steel wheel barycenter and amplitude uniformity test system as claimed in claim 4 to test street roller steel wheel barycenter and amplitude homogeneity, is characterized in that the method comprises the following steps:
Step 1, the test of street roller steel wheel (10) centroid position, detailed process is as follows:
Step 101, installation and leveling: first, the front frame of road roller connecting as one (8), street roller steel wheel (10) and vibrating motor (12) are placed on to front frame bearing (7) top, make front frame of road roller (8) be supported on described front frame bearing (7) top, and make described street roller steel wheel (10) be supported on two described support wheels (6) top; Then,, by backing out for being fixedly connected with the bolt of street roller steel wheel (10) and front frame of road roller (8), described street roller steel wheel (10) can be rotated on described vibrating shaft; Then, at described human-computer interaction device (16) upper input leveling cyclinder (1), control parameter, microprocessor module (14) receives leveling cyclinder (1) and controls parameter and realize the control to three described leveling cyclinders (1) by controlling hydraulic pump (20) with three solenoid valves (21) that are connected with three described leveling cyclinders (1), makes described test platform (3) level be positioned at the top of a plurality of described force cells (2);
The collection of step 102, angle and pressure signal: first, by described A/D change-over circuit module (15), the detected pressure signal of three described force cells (2) is carried out to A/D conversion, obtain three force value F
a', F
b' and F
c', by microprocessor module (14) to three force value F after A/D change-over circuit module (15) is processed
a', F
b' and F
c' gather; Then, described street roller steel wheel (10) is manually turned over to θ angle, the rotational angle signal of the street roller steel wheel (10) angular transducer (5) being detected by described A/D change-over circuit module (15) and the detected pressure signal of three described force cells (2) carry out A/D conversion, obtain angle value θ and three force value F
a, F
band F
c, by microprocessor module (14) to angle value θ and three force value F after A/D change-over circuit module (15) is processed
a, F
band F
cgather;
Determining of step 103, street roller steel wheel (10) centroid position: described microprocessor module (14) calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, obtain the centroid position of described street roller steel wheel (10);
The demonstration of step 104, street roller steel wheel (10) centroid position: described microprocessor module (14) sends display control signal to human-computer interaction device (16), carries out simultaneous display by human-computer interaction device (16) to street roller steel wheel (10) centroid position of determining in step 103;
Step 2, street roller steel wheel (10) amplitude uniformity test, detailed process is as follows:
Step 201, fixing: by screwing on for being fixedly connected with the bolt of street roller steel wheel (10) and front frame of road roller (8), described street roller steel wheel (10) is fixedly connected on described front frame of road roller (8);
The collection of step 202, acceleration signal: in the upper input of described human-computer interaction device (16) street roller steel wheel (10) vibration control parameter, microprocessor module (14) receives street roller steel wheel (10) vibration control parameter and realizes the control to described street roller steel wheel (10) vibration by controlling hydraulic pump (20) with the solenoid valve (21) being connected with described vibrating motor (12); Meanwhile, the vibration acceleration signal at street roller steel wheel (10) the diverse location place of a plurality of acceleration transducers (11) being detected by described A/D change-over circuit module (15) carries out A/D conversion, obtains a plurality of accekeration a
1, a
2..., a
i, then by microprocessor module (14) to the accekeration a after A/D change-over circuit module (15) is processed
1, a
2..., a
igather, wherein, i is the quantity of described acceleration transducer (11);
Step 203, street roller steel wheel (10) amplitude excursion δ determine: described microprocessor module (14) calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
icarry out comprehensive analysis processing, obtain described street roller steel wheel (10) amplitude excursion δ;
The demonstration of step 204, street roller steel wheel (10) amplitude excursion δ: described microprocessor module (14) sends display control signal to human-computer interaction device (16), carries out simultaneous display by human-computer interaction device (16) to street roller steel wheel (10) the amplitude excursion δ determining in step 203.
8. it is characterized in that in accordance with the method for claim 7: microprocessor module described in step 103 (14) calls pressure and angle-data processing module to three collected force value F
a', F
b' and F
c', and angle value θ and three force value F
a, F
band F
ccarry out comprehensive analysis processing, its overall treatment analytic process comprises the following steps:
Step 1031, set up rectangular coordinate system in space: it is true origin that described microprocessor module (14) be take the mid point of described triangle ABC base BC, and take described triangle ABC base BC as X-axis, take perpendicular to the height of described triangle ABC base BC as Y-axis, take and cross true origin and be Z axis perpendicular to the straight line of described triangle ABC place plane, set up rectangular coordinate system in space;
Step 1032, described microprocessor module (14) call described pressure and angle-data processing module and according to formula:
Before described street roller steel wheel (10) is turned over to θ angle, described force cell (2) detects and treated force value F
a', and described street roller steel wheel (10) turns over after θ angle, and described angular transducer (5) detects and treated angle value θ and three described force cells (2) detect also treated force value F
a, F
band F
cbe converted to street roller steel wheel (10) centroid position coordinate (X
g, Y
g, Z
g), wherein, H is the height of described isosceles triangle or described equilateral triangle, F
a' turn over the force value of pressure signal acquisition after described A/D change-over circuit module (15) is processed that θ angle anteposition detects in the force cell (2) at A place, described triangle ABC summit for described street roller steel wheel (10), θ is the angle that turns over of described street roller steel wheel (10) and is the angle value of described angular transducer (5) institute detection angles value acquisition after described A/D change-over circuit module (15) is processed, F
a, F
band F
cbe respectively described street roller steel wheel (10) and turn over three force value that are positioned at pressure signal acquisition after described A/D change-over circuit module (15) is processed that three described force cells (2) at described triangle ABC summit A, B and C place detect after θ angle.
9. it is characterized in that in accordance with the method for claim 7: microprocessor module described in step 203 (14) calls acceleration information processing module to collected a plurality of accekeration a
1, a
2..., a
ithe process of carrying out comprehensive analysis processing is: described microprocessor module (14) calls described acceleration information processing module and according to formula
A plurality of described acceleration transducers (11) are detected to also treated acceleration signal and be converted to street roller steel wheel (10) amplitude excursion δ, wherein, max (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin maximal value, min (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
iin minimum value, AVG (a
1, a
2..., a
i) be a plurality of accekeration a
1, a
2..., a
imean value.
10. according to the method described in claim 7 or 9, it is characterized in that: the value of described i is 3 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294543.XA CN102798500B (en) | 2012-08-19 | 2012-08-19 | System and method for testing barycenter of road roller steel wheel and vibration amplitude uniformity of road roller steel wheel |
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| CN201210294543.XA CN102798500B (en) | 2012-08-19 | 2012-08-19 | System and method for testing barycenter of road roller steel wheel and vibration amplitude uniformity of road roller steel wheel |
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| CN102798500B true CN102798500B (en) | 2014-07-16 |
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| CN103135621A (en) * | 2013-01-21 | 2013-06-05 | 长安大学 | Constant speed control system and constant speed control method for vibratory roller |
| CN104155073A (en) * | 2014-08-21 | 2014-11-19 | 徐工集团工程机械股份有限公司道路机械分公司 | Road roller vibration testing bench |
| KR101826657B1 (en) | 2016-03-11 | 2018-03-22 | 두산중공업 주식회사 | Apparatus and Method for Calculating Center of Gravity |
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