CN103213035B - A kind of magnetic flow liquid differential damping moment control device - Google Patents
A kind of magnetic flow liquid differential damping moment control device Download PDFInfo
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- CN103213035B CN103213035B CN201310086687.0A CN201310086687A CN103213035B CN 103213035 B CN103213035 B CN 103213035B CN 201310086687 A CN201310086687 A CN 201310086687A CN 103213035 B CN103213035 B CN 103213035B
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Abstract
The invention discloses a kind of magnetic flow liquid differential damping moment control device, feature is the magnetic rheological liquid damper comprising polishing head, direct current generator, moment output board and two symmetrical settings, magnetic rheological liquid damper is fixedly connected with machine tool chief axis by installing plate, housing in two magnetic rheological liquid dampers is fixedly connected with, moment output board to be fixedly connected on housing and perpendicular with housing, direct current generator is fixedly installed on moment output board, direct current generator is fixedly connected with polishing head by shaft coupling, polishing head and moment output board perpendicular; Advantage is that this device is by two magnetic rheological liquid damper output torques (namely applying moment to polishing head), and two magnetic rheological liquid dampers are separate, therefore can independently or together output torque, make total output torque be both vector, achieve the controllability in output torque direction; And the heat reducing damper produces, and extends the working time of damper.
Description
Technical field
The present invention relates to a kind of moment control device, particularly relate to a kind of magnetic flow liquid differential damping moment control device.
Background technology
Magnetic flow liquid be a kind of by minimum particles of magnetic material disperse be dissolved in a kind of suspension liquid made in non-magnetic liquid.Without under magnetic fields, it shows the characteristic of Newtonian fluid, and under the effect of externally-applied magnetic field, its apparent viscosity sharply strengthens, and makes magnetic flow liquid present the mechanical characteristic of class solid.Magnetic rheology effect have control continuously, accurately, control response rapidly, low power consumption and other advantages, based on so good characteristic, magnetic flow liquid has had increasing application in various fields.Wherein, the development of magnetic flow liquid moment output device is one of its application.But traditional magnetic flow liquid moment output device shows certain limitation in real-time control, as single in output torque direction, and owing to adopting one group of coil power supply to produce magnetic field, after the electric current passed through in coil is increased to certain value, continuing the electric current increased in coil can make magnetic rheological liquid damper heat production sharply increase, and this can produce a very large impact the working time of damper.
Summary of the invention
It is controlled and can reduce the magnetic flow liquid differential damping moment control device of caloric value that technical problem to be solved by this invention is to provide a kind of output torque direction.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of magnetic flow liquid differential damping moment control device, comprise polishing head, direct current generator, the magnetic rheological liquid damper of moment output board and two symmetrical settings, described magnetic rheological liquid damper is fixedly connected with machine tool chief axis by installing plate, housing in magnetic rheological liquid damper described in two is fixedly connected with, described moment output board to be fixedly connected on described housing and perpendicular with described housing, described direct current generator is fixedly installed on described moment output board, described direct current generator is fixedly connected with described polishing head by shaft coupling, described polishing head and described moment output board perpendicular.
Described magnetic rheological liquid damper comprises housing, servomotor, dampened disk, power shaft and belt drive component, described servomotor is fixedly mounted on described installing plate, described servomotor is fixedly connected with described belt drive component respectively by shaft coupling with described power shaft, described dampened disk is positioned at described housing, described power shaft stretches in described housing and is fixedly connected with described dampened disk, bearing and sealing ring is provided with between described power shaft and described housing, magnetism-isolating loop and coil is provided with in described housing, described magnetism-isolating loop is between described coil and described dampened disk, described housing, magnetic flow liquid is filled with in the space that magnetism-isolating loop and dampened disk are formed, described housing is coupling in described installing plate.
Described belt drive component comprises the first belt pulley, the second belt pulley and Timing Belt, described servomotor is fixedly connected with the first described belt pulley by described shaft coupling, and described power shaft is fixedly connected with the second described belt pulley by described shaft coupling.
Housing one in magnetic rheological liquid damper described in two connects.
Compared with prior art, advantage of the present invention is that this device is by two magnetic rheological liquid damper output torques (namely applying moment to polishing head), and two magnetic rheological liquid dampers are separate, therefore can independently or together output torque, make total output torque be both vector, achieve the controllability in output torque direction; And compared with traditional magnetic flow liquid moment output device, this device utilizes two small area analysis to replace a big current to provide magnetic field for magnetic flow liquid, the heat reducing damper produces, add the surface area of damper simultaneously, add scattering and disappearing of heat, reduce further the temperature of damper, extend the working time of damper.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional view of A-A in Fig. 1;
Fig. 3 is the enlarged diagram of magnetic rheological liquid damper of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in the figure, a kind of magnetic flow liquid differential damping moment control device, comprise polishing 1, direct current generator 2, the magnetic rheological liquid damper of moment output board 3 and two symmetrical settings, magnetic rheological liquid damper is fixedly connected with machine tool chief axis (not shown) by installing plate 4, magnetic rheological liquid damper comprises housing 5, servomotor 6, dampened disk 7, power shaft 8, first belt pulley 9, second belt pulley 10 and Timing Belt 11, servomotor 6 is fixedly mounted on installing plate 4, servomotor 6 is fixedly connected with the first belt pulley 9 by shaft coupling 61, power shaft 8 is fixedly connected with the second belt pulley 10 by shaft coupling 61, dampened disk 7 is positioned at housing 5, power shaft 8 stretches in housing 5 and is fixedly connected with dampened disk 7, bearing and sealing ring is provided with between power shaft 8 and housing 5, magnetism-isolating loop 12 and coil 13 is provided with in housing 5, magnetism-isolating loop 12 is between coil 13 and dampened disk 7, housing 5, magnetic flow liquid is filled with in the space 51 that magnetism-isolating loop 12 and dampened disk 7 are formed, housing 5 is coupling in installing plate 4, housing 5 one in two magnetic rheological liquid dampers connects, moment output board 3 to be fixedly connected on housing 5 and perpendicular with housing 5, direct current generator 2 is fixedly installed on moment output board 3, direct current generator 2 is fixedly connected with by shaft coupling 61 and polishing 1, polishing 1 is perpendicular with moment output board 3.
In above-described embodiment, the operation principle of this device is: during work, make the magnetic rheological liquid damper work on the left side, its dampened disk 7 rotates under the drive of servomotor 6 (now the dampened disk on the right is in halted state), its coil 13 after powered up, the shear yield stress of magnetic flow liquid is sharply increased, dampened disk 7 drives housing 5 to rotate by the effect of magnetic flow liquid shear stress, now, housing 5 can produce a torque, torque is acted in polishing 1 by moment output board 3, makes polishing 1 pair of workpiece produce pressure; And direct current generator 2 provides a rotary motion for polishing 1, realizes the process of workpiece being carried out to polishing.After a long-term service, dampened disk temperature in the magnetic rheological liquid damper on the left side can raise, now, start the magnetic rheological liquid damper work on the right, stop the magnetic rheological liquid damper on the left side, so repeatedly, make a left side, dampened disk alternation in right two magnetic rheological liquid dampers, can working time of extension fixture, simultaneously, rotation direction also by changing servomotor 6 changes the direction of output torque, also can to work output torque by two magnetic rheological liquid dampers simultaneously, total output torque is made to be both vector, realize the controllability in output torque direction.In addition, self gravitation due to direct current generator 2 also can affect the pressure that polishing 1 is applied to workpiece, if the gravity of direct current generator 2 or gravity are greater than required polishing pressure at the one-component of polishing 1 axis, now, only need the servomotor stopping working, start another servomotor and change the rotation direction of servomotor, make moment output board 3 export a reverse moment loading in polishing 1, the self gravitation of this power and gravity flow motor 2 is the pressure that polishing 1 is applied to workpiece in the component sum of polishing 1 axis.
Claims (3)
1. a magnetic flow liquid differential damping moment control device, it is characterized in that comprising polishing head, direct current generator, the magnetic rheological liquid damper of moment output board and two symmetrical settings, described magnetic rheological liquid damper is fixedly connected with machine tool chief axis by installing plate, described magnetic rheological liquid damper comprises housing, servomotor, dampened disk, power shaft and belt drive component, described servomotor is fixedly mounted on described installing plate, described servomotor is fixedly connected with described belt drive component respectively by shaft coupling with described power shaft, described dampened disk is positioned at described housing, described power shaft stretches in described housing and is fixedly connected with described dampened disk, bearing and sealing ring is provided with between described power shaft and described housing, magnetism-isolating loop and coil is provided with in described housing, described magnetism-isolating loop is between described coil and described dampened disk, described housing, magnetic flow liquid is filled with in the space that magnetism-isolating loop and dampened disk are formed, described housing is coupling in described installing plate, housing in magnetic rheological liquid damper described in two is fixedly connected with, described moment output board to be fixedly connected on described housing and perpendicular with described housing, described direct current generator is fixedly installed on described moment output board, described direct current generator is fixedly connected with described polishing head by shaft coupling, described polishing head and described moment output board perpendicular.
2. a kind of magnetic flow liquid differential damping moment control device as claimed in claim 1, it is characterized in that described belt drive component comprises the first belt pulley, the second belt pulley and Timing Belt, described servomotor is fixedly connected with the first described belt pulley by described shaft coupling, and described power shaft is fixedly connected with the second described belt pulley by described shaft coupling.
3. a kind of magnetic flow liquid differential damping moment control device as claimed in claim 1, is characterized in that the housing one in the magnetic rheological liquid damper described in two connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086687.0A CN103213035B (en) | 2013-03-18 | 2013-03-18 | A kind of magnetic flow liquid differential damping moment control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086687.0A CN103213035B (en) | 2013-03-18 | 2013-03-18 | A kind of magnetic flow liquid differential damping moment control device |
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| Publication Number | Publication Date |
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| CN103213035A CN103213035A (en) | 2013-07-24 |
| CN103213035B true CN103213035B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310086687.0A Expired - Fee Related CN103213035B (en) | 2013-03-18 | 2013-03-18 | A kind of magnetic flow liquid differential damping moment control device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106826522B (en) * | 2017-03-31 | 2023-06-27 | 上海应用技术大学 | Novel controllable high-speed glass polishing machine of magneto rheological damping |
| CN106826523B (en) * | 2017-03-31 | 2023-08-04 | 上海应用技术大学 | Novel controllable multi-functional metallography of magneto rheological damping grinds device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138134A1 (en) * | 1981-09-25 | 1983-04-07 | Otto 6900 Heidelberg Meyer | Method of grinding workpieces and device for carrying out the method |
| EP1862697A1 (en) * | 2006-05-30 | 2007-12-05 | The Technical University of Denmark (DTU) | Torsional vibration damper |
| CN101564824A (en) * | 2009-06-05 | 2009-10-28 | 湖南大学 | Method and device for polishing magneto-rheological inclined shaft |
| CN201368172Y (en) * | 2009-03-19 | 2009-12-23 | 宁波大学 | Magneto rheological fluid damper |
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
-
2013
- 2013-03-18 CN CN201310086687.0A patent/CN103213035B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138134A1 (en) * | 1981-09-25 | 1983-04-07 | Otto 6900 Heidelberg Meyer | Method of grinding workpieces and device for carrying out the method |
| EP1862697A1 (en) * | 2006-05-30 | 2007-12-05 | The Technical University of Denmark (DTU) | Torsional vibration damper |
| CN201368172Y (en) * | 2009-03-19 | 2009-12-23 | 宁波大学 | Magneto rheological fluid damper |
| CN101564824A (en) * | 2009-06-05 | 2009-10-28 | 湖南大学 | Method and device for polishing magneto-rheological inclined shaft |
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
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| CN103213035A (en) | 2013-07-24 |
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