CN103062375A - Active control device for torsional vibration of gear pair - Google Patents
Active control device for torsional vibration of gear pair Download PDFInfo
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- CN103062375A CN103062375A CN2013100220558A CN201310022055A CN103062375A CN 103062375 A CN103062375 A CN 103062375A CN 2013100220558 A CN2013100220558 A CN 2013100220558A CN 201310022055 A CN201310022055 A CN 201310022055A CN 103062375 A CN103062375 A CN 103062375A
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- gear
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- torsional vibration
- slip ring
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Abstract
The invention discloses an active control device for torsional vibration of a gear pair, and belongs to the technical field of torsional shock absorption for gear pairs. The active control device is characterized in that actuators are directly mounted on gears, acting force is directly exerted to mass blocks via the actuators, and dynamic mesh force generated by the gear pair is offset by inertia force generated by the mass blocks, so that an internal excitation source generated by meshing of the gear pair is eliminated. Torsional vibration generated by gear systems with optional frequencies can be completely eliminated by reasonable control algorithms as long as the generated inertia force is sufficient. Compared with the traditional vibration damper of a gear system, the active control device has the main advantages that the torsional vibration amplitude can be controlled and minimized, and vibration reduction in full frequency domains can be realized.
Description
Technical field
Invention is specifically related to a kind of gear pair torsional vibration active control device, belongs to the antivibration area of gear transmission torsional vibration.
Background technique
Gear transmission is generally adopted in the modern mechanical field, but the phenomenon of torsional vibration that brings thus ubiquity in rotating machineries such as vehicle, boats and ships.This vibration easily causes mechanical failure and shortens mechanical working life.Along with power and the rotating speed of Modern Internal-Combustion Engine improves constantly, the harm that phenomenon of torsional vibration causes becomes more serious.
At present, the method that reduces the gear train assembly torsional oscillation mainly contains two kinds of approach, and the one, improve and reduce external excitation, such as adopting the motor input and increasing engine cylinder number and improve firing characteristic etc.; The 2nd, adopt vibration isolation technique, by the shift frequency principle, namely by the vibration characteristics design, with the intrinsic torsional frequency of structure with reverse energizing frequency and stagger, as in rotating machinery, generally adopting at present torsional vibration damper.But because gear train assembly gear joint internal motivation characteristic, namely when outside input torque does not fluctuate, owing to becoming the existence of mesh stiffness and backlash during gear pair, gear pair also torsional vibration can occur, so, traditional vibration damping mode just reduces torsional vibration, can not eliminate gear pair internal motivation source.
Summary of the invention
In view of this, the invention provides a kind of gear pair torsional vibration active control device, control gear is directly installed on the gear, can eliminate gear train assembly torsional oscillation internal motivation source.
Gear pair torsional vibration active control device of the present invention comprises plural actuation mechanism, controller, acceleration transducer, slip ring and power supply; Peripheral unit is gear and gear shaft; Wherein, actuation mechanism is comprised of actuator and inertial mass, has wire guide along central axis on the end face of gear shaft one end;
Plural actuation mechanism is installed on the gear wheel disc by the tangent direction of circumference of gear, and actuation mechanism is fixedly mounted on the gear wheel disc after connecting inertial mass by actuator; Slip ring is installed on the end face of gear shaft one end, power supply and controller are fixedly mounted on the peripheral casing, the power line of actuator and the wire guide of the signaling line of acceleration transducer through gear shaft inside are connected on the slip ring, the wire of power supply and the guide line of controller difference be connection slip ring externally, controller gathers the acceleration transducer oscillating signal, and power supply is to power to actuator under the control of controller.
Working principle: when gear and gear shaft rotate simultaneously, acceleration transducer is passed to controller with the torsional vibration situation of gear by signaling line, slip ring and guide line, controller is analyzed the torsion vibration signal that obtains, draw frequency, amplitude and the phase place of each harmonic wave in the oscillating signal, and control accordingly power supply and provide frequency identical through power line and slip ring to actuator, the corresponding electric current of amplitude and phase place, actuator promotes mass block and produces and gear pair dynamic engagement power equal and opposite in direction, the inertial force of opposite direction, thereby the torsional vibration of counteracting gear pair.
Beneficial effect: the present invention directly is installed in actuator on the gear, by actuator mass block is applied active force, and the inertial force that mass block is produced is offset the dynamic engagement power of gear pair, thereby has eliminated the internal motivation source of gear pair engagement; In theory, for the gear train torsional vibration of any frequency, as long as the inertial force that produces is enough, adopt rational control algorithm just its torsional vibration can be subdued to zero.Therefore, the present invention can realize controlling to torsional amplitudes arbitrarily small and realizing the full frequency-domain vibration damping.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cut-away view of Fig. 1.
Wherein, 1-gear, 2-acceleration transducer, 3-gear shaft, 4-slip ring, 5-casing, 6-power supply, 7-controller, 8-actuator, 9-screw, 10-mass block, 11-wire guide.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The invention provides a kind of gear pair torsional vibration active control device, gear pair torsional vibration active control device of the present invention comprises four actuation mechanism, controller 7, acceleration transducer 2, slip ring 4 and power supply 6; Peripheral unit is gear 1 and gear shaft 3; Wherein, actuation mechanism is comprised of actuator 8 and inertial mass 10, has wire guide 11 along central axis on the end face of gear shaft 3 one ends;
Actuation mechanism is installed on gear 1 wheel disc by the tangent direction of circumference of gear, and actuation mechanism is fixedly mounted on gear 1 wheel disc by screw 9 after connecting inertial mass 10 by actuator 8, and four actuation mechanism are along circumferentially being distributed in the same circumferential plane; Slip ring 4 is installed on the end face of gear shaft 3 one ends, power supply 6 and controller 7 are fixedly mounted on the peripheral casing 5, the wire guide 11 of the signaling line of the power line of actuator and acceleration transducer 2 through gear shaft 3 inside is connected on the slip ring 4, the guide line difference of the wire of power supply 6 and controller 7 is connection slip ring externally, controller 7 gathers the acceleration transducer oscillating signal, and power supply 6 is to actuator 8 power supplies under the control of controller 7.
Working principle: when gear 1 and gear shaft 3 synchronous rotary, acceleration transducer 2 passes through signaling line with the torsional vibration situation of gear 1, slip ring 4 and guide line are passed to controller 7, controller 7 is analyzed the torsion vibration signal that obtains, draw the frequency of each harmonic wave in the oscillating signal, amplitude and phase place, and control accordingly power supply and provide frequency identical through power line and slip ring 4 to actuator 8, the corresponding electric current of amplitude and phase place, actuator 8 promotes mass block 10 and produces and gear pair dynamic engagement power equal and opposite in direction, the inertial force of opposite direction, thereby the torsional vibration of counteracting gear pair.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a gear pair torsional vibration active control device is characterized in that, comprises plural actuation mechanism, controller (7), acceleration transducer (2), slip ring (4) and power supply (6); Peripheral unit is gear (1) and gear shaft (3); Wherein, actuation mechanism is comprised of actuator (8) and inertial mass (10), has wire guide (11) along central axis on the end face of gear shaft (3) one ends;
Plural actuation mechanism is installed on gear (1) wheel disc by the tangent direction of circumference of gear, and actuation mechanism is fixedly mounted on gear (1) wheel disc after connecting inertial mass (10) by actuator (8); Slip ring (4) is installed on the end face of gear shaft (3) one ends, power supply (6) and controller (7) are fixedly mounted on the peripheral casing (5), the signaling line of the power line of actuator (8) and acceleration transducer (2) is connected on the slip ring (4) through the inner wire guide (11) of gear shaft (3), the guide line difference of the wire of power supply (6) and controller (7) is connection slip ring (4) externally, controller (7) gathers the acceleration transducer oscillating signal, and power supply (6) is actuator (8) power supply under the control of controller (7).
2. gear pair torsional vibration active control device as claimed in claim 1, when it is characterized in that described gear (1) with gear shaft (3) synchronous rotary, acceleration transducer (2) passes through signaling line with the torsional vibration situation of gear (1), slip ring (4) and guide line are passed to controller (7), controller (7) is analyzed the torsion vibration signal that obtains, draw the frequency of each harmonic wave in the oscillating signal, amplitude and phase place, and control accordingly power supply and provide frequency identical through power line and slip ring (4) to actuator (8), the corresponding electric current of amplitude and phase place, actuator (8) promotes mass block (10) and produces and gear pair dynamic engagement power equal and opposite in direction the inertial force of opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100220558A CN103062375A (en) | 2013-01-21 | 2013-01-21 | Active control device for torsional vibration of gear pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100220558A CN103062375A (en) | 2013-01-21 | 2013-01-21 | Active control device for torsional vibration of gear pair |
Publications (1)
| Publication Number | Publication Date |
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| CN103062375A true CN103062375A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100220558A Pending CN103062375A (en) | 2013-01-21 | 2013-01-21 | Active control device for torsional vibration of gear pair |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606203A (en) * | 2015-09-22 | 2016-05-25 | 中国船舶重工集团公司第七�三研究所 | Direct test method used for rotation gear wheel disk vibration |
| CN105864302A (en) * | 2016-01-21 | 2016-08-17 | 大连理工大学 | Shaft coupling vibration reduction system and method |
| CN107191571A (en) * | 2017-05-03 | 2017-09-22 | 南京航空航天大学 | Roller gear is layered the vibration damping method of testing of web vibration-proof structure and its transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042974A (en) * | 1988-11-24 | 1990-06-13 | 清华大学 | Continuous adjustable method for vibration of electromagnetic type spring rate and vibration absorber |
| US6408717B1 (en) * | 1997-05-09 | 2002-06-25 | Ap Tmf Limited | Twin mass flywheels |
| CN101055015A (en) * | 2007-05-17 | 2007-10-17 | 中国科学技术大学 | Rigidity-variable full-automatic power vibration-absorber |
| CN201621227U (en) * | 2009-12-30 | 2010-11-03 | 中国船舶重工集团公司第七一一研究所 | Torsional vibration damper capable of switching between active control and non active control |
-
2013
- 2013-01-21 CN CN2013100220558A patent/CN103062375A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042974A (en) * | 1988-11-24 | 1990-06-13 | 清华大学 | Continuous adjustable method for vibration of electromagnetic type spring rate and vibration absorber |
| US6408717B1 (en) * | 1997-05-09 | 2002-06-25 | Ap Tmf Limited | Twin mass flywheels |
| CN101055015A (en) * | 2007-05-17 | 2007-10-17 | 中国科学技术大学 | Rigidity-variable full-automatic power vibration-absorber |
| CN201621227U (en) * | 2009-12-30 | 2010-11-03 | 中国船舶重工集团公司第七一一研究所 | Torsional vibration damper capable of switching between active control and non active control |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606203A (en) * | 2015-09-22 | 2016-05-25 | 中国船舶重工集团公司第七�三研究所 | Direct test method used for rotation gear wheel disk vibration |
| CN105864302A (en) * | 2016-01-21 | 2016-08-17 | 大连理工大学 | Shaft coupling vibration reduction system and method |
| CN105864302B (en) * | 2016-01-21 | 2018-09-04 | 大连理工大学 | Shaft coupling vibration insulating system and method |
| CN107191571A (en) * | 2017-05-03 | 2017-09-22 | 南京航空航天大学 | Roller gear is layered the vibration damping method of testing of web vibration-proof structure and its transmission |
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Application publication date: 20130424 |