CN103322113B - Controllable torque device based on magnetorheological materials - Google Patents

Controllable torque device based on magnetorheological materials Download PDF

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Publication number
CN103322113B
CN103322113B CN201310285102.8A CN201310285102A CN103322113B CN 103322113 B CN103322113 B CN 103322113B CN 201310285102 A CN201310285102 A CN 201310285102A CN 103322113 B CN103322113 B CN 103322113B
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CN
China
Prior art keywords
controllable
magnetorheological materials
magnetorheological
torque
advancing
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CN201310285102.8A
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Chinese (zh)
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CN103322113A (en
Inventor
廖昌荣
李祝强
周治江
文娟
鞠锐
谢磊
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重庆大学
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Priority to CN201310213055.6 priority Critical
Priority to CN2013102130556 priority
Priority to CN201310213055 priority
Application filed by 重庆大学 filed Critical 重庆大学
Priority to CN201310285102.8A priority patent/CN103322113B/en
Publication of CN103322113A publication Critical patent/CN103322113A/en
Application granted granted Critical
Publication of CN103322113B publication Critical patent/CN103322113B/en

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Abstract

The invention provides a controllable torque device based on magnetorheological materials. The controllable torque device comprises a propelling device, a controllable buffer device and a magnetorheological material return pipe. The propelling device is provided with a spiral passage inside. A multi-stage annular damping passage is formed in the controllable buffer device. When the propelling device operates, the magnetorheological materials in the spiral passage is pushed into the multi-stage annular damping passage, then the magnetorheological materials flow back to the spiral passage through the magnetorheological material return pipe, and a magnetorheological loop is formed. By the controllable torque device, effective length of the damping passage is increased, high damping force can be output, and buffer requirements under high-speed and large impacts can be satisfied.

Description

Based on the torque-controllable device of magnetorheological materials

Technical field

The present invention relates to buffer technology field, particularly relate to a kind of torque-controllable device based on magnetorheological materials.

Background technique

Buffering refers to: relax its mechanical vibration when the apparatuses such as such as vehicle, aerospace equipment, heavy machinery or weapons are subject to high speed impact, make its stressed mild process.In practice, there is impact situation miscellaneous, such as: aircraft landing, firearms transmitting, elevator tenesmus, machine tool component faster reciprocal motion etc., these impact situation all can make machinery be severely affected, the component of machinery can produce very large dynamic stress, even likely directly cause damage of components, therefore when machinery is subject to impacting, be necessary to take impact mitigation measure.In prior art, magnetic flow liquid buffer is a kind of novel intelligent device, and its damping force size can regulate by controlling field coil size of current, therefore has application area very widely.But, existing magnetic flow liquid buffer be all damp channel is arranged on clutch release slave cylinder and piston gap location and for form of straight lines, its damp channel effective length formed is very short, the damping force exported is very little, damping force regulation range is little, is difficult to the buffer requirements under satisfied high speed, macro-energy impact.

Summary of the invention

In view of this, the invention provides a kind of torque-controllable device based on magnetorheological materials.The effective length of damp channel can be improved, export large damping force, meet the buffer requirements under high speed, macro-energy impact.

Torque-controllable device based on magnetorheological materials provided by the invention, comprise: advancing means, controllable buffer apparatus and magnetorheological materials reflow pipe, helical duct is provided with in described advancing means, multi-stage annular damp channel is provided with in described controllable buffer apparatus, when described advancing means work, magnetorheological materials in described helical duct is clamp-oned in described multi-stage annular damp channel by described advancing means, and be back in described helical duct through described magnetorheological materials reflow pipe, form magnetorheological loop.

Further, described advancing means comprises: the running shaft of shell and band helical tooth, described shell comprises: inner chamber and the throttling nose end arranged vertically and round end, described running shaft is arranged in described inner chamber and forms described helical duct, described throttling nose end is provided with throttle orifice, described throttle orifice is communicated with described multi-stage annular damp channel with described inner chamber, described round end has been disposed radially magnetorheological materials flow channel, described magnetorheological materials flow channel and described magnetorheological materials reflow pipe and described inner space.

Further, the structure of described inner chamber is cylinder type or boss type, and accordingly, the structure of described running shaft is cylinder type or boss type.

Further, described advancing means, also comprises: supports end cap, and described supports end cap is positioned at the rotation side of described shell, and is fixed on described round end, and described supports end cap is by running shaft described in seal ring and bearings.

Further, described controllable buffer apparatus comprises: oil cylinder, at least a slice center isolating plate and at least a slice annulus isolating plate, and described center isolating plate and annulus isolating plate arrange along described oil cylinder inner wall axially spaced-apart and form described multi-stage annular damp channel.

Further, described controllable buffer apparatus also comprises: the field coil being arranged at described oil cylinder outer wall, the controllable electric power be electrically connected with described field coil, be connected with described controllable electric power, for controlling the controller of the output current of described controllable electric power, with for detecting described oil cylinder internal pressure information, controlling the pressure transducer of foundation for described controller provides.

Further, described magnetorheological materials comprises: magneto-rheological grease or magnetic flow liquid.

Further, also comprise: cylinder, clutch and the drag-line be connected with load, one end of described cylinder is connected with the running shaft in described advancing means by clutch, for driving described running shaft to rotate, rolls on described in described drag-line is wound in.

Beneficial effect of the present invention:

The torque-controllable device of the embodiment of the present invention, adopt the structure that advancing means and controllable buffer apparatus combine, and owing to being provided with helical duct in advancing means, multi-stage annular damp channel is provided with in controllable buffer apparatus, when advancing means works, magnetorheological materials in helical duct is clamp-oned in multi-stage annular damp channel, and be back in helical duct through magnetorheological materials reflow pipe, therefore the effective length of damp channel is a significant increase, make torque-controllable device can export very large damping force, meet at a high speed completely, buffer requirements under macro-energy impact.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described:

Fig. 1 is the structural representation of the embodiment of the torque-controllable device based on magnetorheological materials provided by the invention.

Embodiment

Please refer to Fig. 1, is the structural representation of the embodiment of the torque-controllable device based on magnetorheological materials provided by the invention.This torque-controllable device comprises: advancing means 1, controllable buffer apparatus 2 and magnetorheological materials reflow pipe 3.

In advancing means 1, be provided with helical duct 11, in controllable buffer apparatus 2, be provided with multi-stage annular damp channel 21.When advancing means 1 works, its Driving force produced, magnetorheological materials in helical duct 11 is clamp-oned in multi-stage annular damp channel 21, magnetorheological materials in inflow multi-stage annular damp channel 21 is under the effect of Driving force, in magnetorheological materials reflow pipe 9, be back in helical duct, form magnetorheological loop.

Preferably, the magnetorheological materials of filling in helical duct 11, multi-stage annular damp channel 21 and magnetorheological materials reflow pipe 3 can be the magnetic flow moving medium of magnetic flow liquid or magneto-rheological grease or other form well known to those skilled in the art.Magnetic flow liquid is the suspension mixed by high magnetic permeability, low hysteresis small soft magnetic particles and non-magnetic liquid.It leaves standstill for a long time can produce settlement issues, greatly reduces magnetic rheology effect.Magneto-rheological grease is brand-new controlled fluid material, its carrier fluid adopts silicon level viscoelastic fluid, Acclimation temperature wide ranges (-70 ° to 230 °), shear yield stress can reach 120 kPas, response time is about 50 milliseconds,, in plus load effect lower volume compressible 10% to 15%, and there is not sedimentation for a long time in magnetic control viscosity regulation range wide (about 15 to 20 times).

The present embodiment, the helical duct 11 arranged in advancing means 1 and the interior multi-stage annular damp channel 21 arranged of controllable buffer apparatus 2 all have long magnetorheological runner, both coordinate, the effective length of damp channel can be improved significantly, make torque-controllable device export very large damping force, meet the buffer requirements under high speed, macro-energy impact.Meanwhile, in the present embodiment, form magnetorheological loop by magnetorheological materials reflow pipe 9, therefore do not need additional magnetorheological materials storage device, make the structure of torque-controllable device more simple.

Continue as shown in Figure 1, advancing means 1 mainly comprises: shell 12 and running shaft 13.Wherein, shell 12 has an inner chamber 14 and the throttling nose end 15 arranged vertically and round end 16, and throttling nose end 15 and round end 16 are positioned at the relative both sides of inner chamber 14, and integrally formed with inner chamber.Running shaft 13 is with helical tooth, and it is arranged in inner chamber 14, inner chamber 14 is divided into multiple spiral connection cabin, and these spiral connection cabins define the helical duct 11 for magnetorheological materials flowing.Be provided with throttle orifice I17 in throttling nose end 15, this throttle orifice I17 is communicated with multi-stage annular damp channel 21 with inner chamber 14.Round end 16 has been disposed radially magnetorheological materials flow channel 18, and magnetorheological materials flow channel 18 is communicated with inner chamber 14 with magnetorheological materials reflow pipe 3.

Further, advancing means 1 also comprises: supports end cap 19.Supports end cap 19 is positioned at round end 16 side of shell 12, and is fixed on round end 16 in modes such as bolts, and supports end cap 6 is by seal ring and bearings running shaft 13.

Further, the structure of inner chamber 14 varying in size of Driving force according to demand and be set to corresponding shape, such as: cylinder type or boss type.Accordingly, the structure of running shaft 13 also can be cylinder type or boss type.Preferably, the shape of inner chamber 14 and running shaft 13 is boss type, and to increase the damping force of inner chamber 14 pairs of running shaft 13 thrusts, the shape namely by changing inner chamber 14 and running shaft 13 reaches the object improving damping force.

Continue as shown in Figure 1, controllable buffer apparatus 2 comprises: oil cylinder 22, at least a slice center isolating plate 23 and at least a slice annulus isolating plate 24.Center isolating plate 23 and annulus isolating plate 24 are arranged along oil cylinder 22 inwall axially spaced-apart, and oil cylinder 22 is separated into the cabin of multiple sequential communication, these cabins define multi-stage annular damp channel 21.Further, one end of multi-stage annular damp channel 21 is communicated with the inner chamber 14 of advancing means 1, and the other end is communicated with magnetorheological materials reflow pipe 9.Oil cylinder 22 is provided with throttle orifice II26, and multi-stage annular damp channel 21 is communicated with magnetorheological materials reflow pipe 3 by this throttle orifice II26.

Further, controllable buffer apparatus 2 also comprises: shell 25.Shell 25 can be made and the low carbon steel that saturation intensity is high high by permeability.Oil cylinder 22 is wrapped in wherein by shell 25.

Further, controllable buffer apparatus 2 also comprises: field coil 27.Field coil 27, between the outer side wall and shell 25 of oil cylinder 22, by controlling the size of current flow through in field coil 27, can regulate the magnetic intensity in oil cylinder 22, reaching the object of damping adjusting power.For the ease of controlling the electric current flow through in field coil 27, controllable buffer apparatus 2 also comprises: the controllable electric power 28 be electrically connected with field coil 27, be connected with controllable electric power 28, for controlling the controller 29 of the output current of controllable electric power 28, with be arranged in oil cylinder 22, for detecting the pressure transducer 20 of oil cylinder 22 internal pressure information as the control foundation of controller 29.Concrete, pressure transducer 20 detects in-oil cylinder pressure information and propagation controller 29, and pressure information comprises: force value and its characteristic information.The pressure information that controller 29 detects according to pressure transducer 20, exports corresponding current controling signal to controllable electric power 28.Controllable current 28, according to the current controling signal of controller 29, provides corresponding electric current to field coil 27, controls and the electromagnetic field intensity regulating field coil 27 to produce, reaches the object of damping adjusting power.

Continue as shown in Figure 1, torque-controllable device also comprises: swivel gear 4.Swivel gear 4 one aspect is connected with load, be connected with running shaft 13 on the other hand, time when load occurs that whereabouts or other needs cushion rapidly when, under the effect of load, swivel gear 4 driven rotary axle 13 rotates, and produces Driving force, promotes magnetorheological materials and flows in magnetorheological loop, produce damping force, load is played to the effect of buffering.

Concrete, swivel gear 4 comprises: cylinder 41, clutch 42, the drag-line 43 be connected with load, power 44 and pedestal 45.One end of its intermediate roll 41 is connected with advancing means 1 running shaft 13 by clutch 42, rotates for driven rotary axle 13; The other end of cylinder 41 is connected with power 44, and power 44 resets for allowing the drag-line 43 be wound on cylinder 41, and when needs drag-line 43 resets, clutch 42 unclamps the connection of cylinder 41 and running shaft 13.Cylinder 41 is arranged on pedestal 45, is provided support for it by pedestal 45, concrete, is connected between cylinder 41 with pedestal 45 by bearing.

Preferably, clutch 42 can be mechanical type, electromagnetic type, surge or the various structures such as pneumatic type.

Preferably, different according to cylinder 41 and drag-line 43 gross weight, power 45 can be arranged accordingly reducing gear and reset starting torque is strengthened.Between cylinder 3 and pedestal 2, bearing I I23 is set, is provided support by pedestal 2.

What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (6)

1. the torque-controllable device based on magnetorheological materials, it is characterized in that: comprising: advancing means, controllable buffer apparatus and magnetorheological materials reflow pipe, helical duct is provided with in described advancing means, multi-stage annular damp channel is provided with in described controllable buffer apparatus, when described advancing means work, under the effect of Driving force, magnetorheological materials in described helical duct flows in described multi-stage annular damp channel, and be back in described helical duct through described magnetorheological materials reflow pipe, form magnetorheological loop;
Described advancing means comprises: the running shaft of shell and band helical tooth, described shell comprises: inner chamber and the throttling nose end arranged vertically and round end, described running shaft is arranged in described inner chamber and forms described helical duct, described throttling nose end is provided with throttle orifice, described throttle orifice is communicated with described multi-stage annular damp channel with described inner chamber, described round end has been disposed radially magnetorheological materials flow channel, described magnetorheological materials flow channel and described magnetorheological materials reflow pipe and described inner space;
Described controllable buffer apparatus comprises: oil cylinder, at least a slice center isolating plate and at least a slice annulus isolating plate, and described center isolating plate and annulus isolating plate arrange along described oil cylinder inner wall axially spaced-apart and form described multi-stage annular damp channel.
2., as claimed in claim 1 based on the torque-controllable device of magnetorheological materials, it is characterized in that: the structure of described inner chamber is cylinder type or boss type, accordingly, the structure of described running shaft is cylinder type or boss type.
3. as claimed in claim 1 based on the torque-controllable device of magnetorheological materials, it is characterized in that: described advancing means, also comprise: supports end cap, described supports end cap is positioned at the rotation side of described shell, and be fixed on described round end, and described supports end cap is by running shaft described in seal ring and bearings.
4. as claimed in claim 1 based on the torque-controllable device of magnetorheological materials, it is characterized in that: described controllable buffer apparatus also comprises: the field coil being arranged at described oil cylinder outer wall, the controllable electric power be electrically connected with described field coil, be connected with described controllable electric power, for controlling the controller of the output current of described controllable electric power, with for detecting described oil cylinder internal pressure information, controlling the pressure transducer of foundation for described controller provides.
5. the torque-controllable device based on magnetorheological materials according to any one of claim 1-3, is characterized in that: described magnetorheological materials comprises: magneto-rheological grease or magnetic flow liquid.
6. the torque-controllable device based on magnetorheological materials according to any one of claim 1-3, it is characterized in that: also comprise: cylinder, clutch and the drag-line be connected with load, one end of described cylinder is connected with the running shaft in described advancing means by clutch, for driving described running shaft to rotate, described drag-line is wound on described cylinder.
CN201310285102.8A 2013-05-31 2013-07-08 Controllable torque device based on magnetorheological materials CN103322113B (en)

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CN201310213055.6 2013-05-31
CN2013102130556 2013-05-31
CN201310213055 2013-05-31
CN201310285102.8A CN103322113B (en) 2013-05-31 2013-07-08 Controllable torque device based on magnetorheological materials

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110594340A (en) * 2019-08-19 2019-12-20 南京理工大学 Bidirectional force and moment transmission device based on magnetorheological grease

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN104179876A (en) * 2014-08-12 2014-12-03 福建工程学院 Bipolar corrugated plate magnetorheological damper
CN104444696A (en) * 2014-12-13 2015-03-25 重庆和航科技股份有限公司 Elevator system with adaptive damping force damping device
CN104495566B (en) * 2014-12-13 2018-01-02 重庆和航科技股份有限公司 The damping system of the progressive damping force of elevator adaptability
CN105626756B (en) * 2016-03-09 2017-12-22 中国人民解放军装甲兵工程学院 Blade swing type magneto-rheological vibration damper
CN107131244A (en) * 2017-05-18 2017-09-05 重庆大学 Magneto-rheological

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JPH10141419A (en) * 1996-11-15 1998-05-29 Isuzu Motors Ltd Buffer
EP1908985A1 (en) * 2006-10-02 2008-04-09 Delphi Technologies, Inc. Twin-tube magnetorheological damper
CN101576141B (en) * 2009-06-04 2011-02-09 重庆大学 Longitudinal linear vibration inhibiting method and device based on rotary magnetorheological device
CN201934568U (en) * 2011-02-17 2011-08-17 谭和平 Twin-cylinder differential magnetorheological damper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110594340A (en) * 2019-08-19 2019-12-20 南京理工大学 Bidirectional force and moment transmission device based on magnetorheological grease

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