CN111911565A - Spindle braking mechanism based on magnetorheological fluid - Google Patents
Spindle braking mechanism based on magnetorheological fluid Download PDFInfo
- Publication number
- CN111911565A CN111911565A CN202010510634.7A CN202010510634A CN111911565A CN 111911565 A CN111911565 A CN 111911565A CN 202010510634 A CN202010510634 A CN 202010510634A CN 111911565 A CN111911565 A CN 111911565A
- Authority
- CN
- China
- Prior art keywords
- magnetorheological fluid
- transmission
- braking
- spindle
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
Abstract
The invention relates to the technical field of spindle braking devices, and discloses a spindle braking mechanism based on magnetorheological fluid, which comprises a transmission spindle, wherein transmission spacers are movably sleeved on two sides of the outer surface of the transmission spindle, a connecting baffle is fixedly sleeved on one side of the outer surface of the transmission spacer, a hydraulic mechanism is in threaded connection with the outer side of the connecting baffle, one end of the transmission spacer is in transmission connection with the inside of the hydraulic mechanism, a braking shell is fixedly installed on the inner side of the connecting baffle, and a cut-off groove is formed in the inner wall of the braking shell. The spindle braking mechanism based on the magnetorheological fluid can increase the entry-cut angle of the cutoff through hole to the magnetorheological fluid due to the arrangement of the cutoff through hole and the inclination angle of the cutoff through hole, so that the spindle braking mechanism not only realizes the braking to the transmission spindle by only depending on the friction between the surface of the cutoff through hole and the magnetorheological fluid, but also increases the cutting torque of the cutoff through hole to the magnetorheological fluid, and further increases the braking torque generated by the spindle braking mechanism during braking.
Description
Technical Field
The invention relates to the technical field of spindle braking devices, in particular to a spindle braking mechanism based on magnetorheological fluid.
Background
The magnetorheological fluid is used as a novel intelligent material, the rheological property of the magnetorheological fluid can be rapidly and continuously changed along with the change of an applied magnetic field, the Newtonian fluid with low viscosity and high fluidity is presented in the absence of the magnetic field, the Newtonian fluid with high viscosity and low fluidity is presented in the presence of a strong magnetic field, and the viscosity of the magnetorheological fluid and the magnetic field have a stable corresponding relation, so that the magnetorheological fluid can effectively regulate and control the rotating torque of the transmission main shaft by utilizing the strong shear yield strength generated by the magnetorheological fluid based on the characteristic of the magnetorheological fluid under the action of the magnetic field, and further the continuous control of the rotating speed of the transmission main shaft is realized, so that the problems of abrasion, heating failure and the like generated in the traditional mechanical friction braking are solved.
However, the brake disc of the existing brake mechanism based on magnetorheological fluid is immersed in the magnetorheological fluid, when the brake disc rotates at a high speed along with the transmission main shaft, a layer of air film is generated between the centrifugal force generated by the high-speed rotation of the surface of the brake disc and the magnetorheological fluid, so that the friction force and the braking torque generated by the magnetorheological fluid to the brake disc when braking is carried out after a magnetic field is applied are smaller, the braking time of the brake disc to the transmission main shaft is further prolonged, and a certain fluid resistance exists between the brake disc and the magnetorheological fluid because the brake disc is immersed in the magnetorheological fluid all the time, the rotating torque of the transmission main shaft when being started is further increased, and the power loss of the transmission main shaft in the transmission process is increased.
Disclosure of Invention
Technical problem to be solved
The invention provides a spindle braking mechanism based on magnetorheological fluid, which has the advantages of large braking torque, no influence of centrifugal force on the braking torque and less power loss of a spindle during transmission, solves the problems that the brake disc of the existing braking mechanism based on the magnetorheological fluid is immersed in the magnetorheological fluid, and when the brake disc rotates at high speed along with the transmission spindle, a layer of air film is generated between the centrifugal force generated by the high-speed rotation of the surface of the brake disc and the magnetorheological fluid, so that the friction force and the braking torque generated by the magnetorheological fluid to the brake disc are smaller when the magnetorheological fluid is braked after a magnetic field is applied, thereby prolonging the braking time of the transmission main shaft, and because the brake disc is always immersed in the magnetorheological fluid, certain fluid resistance exists between the magnetorheological fluid and the magnetorheological fluid, so that the rotating torque of the transmission main shaft during starting is increased, and the power loss of the transmission main shaft during transmission is increased.
(II) technical scheme
The invention provides the following technical scheme: the utility model provides a main shaft brake mechanism based on magnetorheological suspensions, includes the transmission main shaft, the equal movable sleeve in both sides of transmission main shaft surface is equipped with the transmission spacer, the fixed cover in one side of transmission spacer surface is equipped with connection baffle, and connection baffle's outside threaded connection has hydraulic pressure mechanism, the one end of transmission spacer is connected with the internal drive of hydraulic pressure mechanism, connection baffle's inboard fixed mounting has the braking shell, and has seted up the recess that dams on the inner wall of braking shell, the fixed cover that has cup jointed movable pressure disk in the other end of transmission spacer and the inner chamber that is located the braking shell, fixed pressure disk has been cup jointed in the opposite side activity of movable pressure disk, the fixed cover that is equipped with the braking disk body just is located between two sets of fixed pressure disks in the middle part of transmission main shaft surface, connection baffle's inner.
Preferably, the inner cavity of the connecting baffle is filled with magnetorheological fluid with equal volume.
Preferably, the brake disc body includes the brake pressure disk, the packing recess has all been seted up to the positive and negative both sides of brake pressure disk, contact between the inner wall of packing recess and the surface of fixed pressure disk, the front of brake pressure disk is equipped with the through-hole that dams that the annular array arranged.
Preferably, the depth of the packing groove is equal to the thickness of the fixed pressure plate, and the outer diameter of the closure through hole is larger than the inner diameter of the packing groove.
Preferably, the opening direction of the intercepting through hole forms an included angle of 45 degrees with the horizontal plane and the vertical plane.
(III) advantageous effects
The invention has the following beneficial effects:
1. the spindle braking mechanism based on the magnetorheological fluid is arranged between the movable pressure plate and the fixed pressure plate, when the transmission main shaft is not started to brake, the contact between the brake disc body and the magnetorheological fluid in the inner cavity of the connecting baffle can be effectively blocked, and by utilizing the arrangement of the transmission spacer bush and the hydraulic mechanism, when braking is needed, the magnetorheological fluid is rapidly extruded and is in close contact with the brake disc body, compared with the existing brake mechanism based on the magnetorheological fluid, the brake mechanism effectively avoids the contact between the transmission main shaft and the magnetorheological fluid when the transmission main shaft rotates at high speed, thereby effectively avoiding the problem that air film is generated between the brake disc body and the magnetorheological fluid due to centrifugal force when the brake disc body rotates at high speed, the braking torque of the main shaft braking mechanism is effectively improved, the time for decelerating and braking the transmission main shaft is shortened, and meanwhile, the power loss of the transmission main shaft in the transmission process is reduced.
2. The spindle braking mechanism based on the magnetorheological fluid can increase the entry-cut angle of the cutoff through hole to the magnetorheological fluid due to the arrangement of the cutoff through hole and the inclination angle of the cutoff through hole, so that the spindle braking mechanism not only realizes the braking to the transmission spindle by only depending on the friction between the surface of the cutoff through hole and the magnetorheological fluid, but also increases the cutting torque of the cutoff through hole to the magnetorheological fluid, and further increases the braking torque generated by the spindle braking mechanism during braking.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the invention at A in FIG. 1;
fig. 3 is a schematic structural diagram of the brake disc of the present invention.
In the figure: 1. a transmission main shaft; 2. a transmission spacer bush; 3. connecting a baffle plate; 4. a hydraulic mechanism; 5. a brake housing; 6. a cut-off groove; 7. a movable platen; 8. a fixed platen; 9. a brake disc body; 91. a brake pressure plate; 92. sealing the groove; 93. a shut-off through hole; 10. an electromagnetic coil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a spindle braking mechanism based on magnetorheological fluid comprises a transmission spindle 1, a transmission spacer 2 is movably sleeved on both sides of the outer surface of the transmission spindle 1, a connecting baffle 3 is fixedly sleeved on one side of the outer surface of the transmission spacer 2, and the outer side of the connecting baffle 3 is connected with a hydraulic mechanism 4 by screw thread, one end of the transmission spacer bush 2 is connected with the inner part of the hydraulic mechanism 4 in a transmission way, the inner side of the connecting baffle 3 is fixedly provided with a brake shell 5, and the inner wall of the brake shell 5 is provided with a cut-off groove 6, the other end of the transmission spacer sleeve 2 is fixedly sleeved with a movable pressure plate 7 in the inner cavity of the brake shell 5, the other side of the movable pressure plate 7 is movably sleeved with a fixed pressure plate 8, the middle part of the outer surface of the transmission main shaft 1 and between the two groups of fixed pressure plates 8 are fixedly sleeved with a brake disc body 9, and the inner cavity of the connecting baffle plate 3 and the periphery of the brake shell 5 are provided with an electromagnetic coil 10.
The interior of the hydraulic mechanism 4 is in transmission connection with the hydraulic pump, the interior of the electromagnetic coil 10 is electrically connected with the independent power supply, and the hydraulic mechanism 4 and the electromagnetic coil 10 are respectively in feedback electrical connection with the control system.
In the technical scheme, the inner cavity of the connecting baffle 3 is filled with magnetorheological fluid with equal volume.
The arrangement between the movable pressure plate 7 and the fixed pressure plate 8 can effectively block the contact between the magnetorheological fluid in the inner cavity of the brake disc body 9 and the connecting baffle plate 3 when the brake is not started, and the magnetorheological fluid is rapidly extruded and is in close contact with the brake disc body 9 when the brake is needed by utilizing the arrangement of the transmission spacer bush 2 and the hydraulic mechanism 4, so that the power loss of the transmission main shaft 1 in the transmission process is reduced, and meanwhile, the problem that an air film is generated between the magnetorheological fluid and the brake disc body 9 due to the centrifugal force when the brake disc body 9 rotates at a high speed is avoided, the braking torque of the main shaft braking mechanism is effectively improved, and the time for decelerating and braking the transmission main shaft 1 is shortened.
In this technical scheme, brake disc body 9 includes brake pressure disk 91, and the packing recess 92 has all been seted up to the tow sides of brake pressure disk 91, seals to contact between the inner wall of packing recess 92 and the surface of fixed pressure disk 8, and the front of brake pressure disk 91 is equipped with the through-hole 93 that dams that the annular array arranged.
The arrangement of the brake disc body 9 can effectively and stably increase the shearing torque between the brake disc body and the magnetorheological fluid after the magnetic field is applied, so that the brake of the transmission main shaft 1 is realized only by the friction of the surface, meanwhile, the shearing torque of the brake disc body to the magnetorheological fluid is increased by the intercepting through hole 93 on the brake pressure disc 91, and the braking torque of the main shaft braking mechanism is further increased.
In this technical scheme, the depth of seting up of packing recess 92 equals the thickness of fixed pressure disk 8, and the external diameter of damming through-hole 93 is greater than the internal diameter of packing recess 92.
Wherein, to the setting of packing recess 92 exterior structure for fixed pressure disk 8 can be effectual laminating on its inner wall, and discharge its inside magnetorheological suspensions when not needing to brake, can not form fluid resistance to high-speed rotatory braking pressure disk 91, moreover because the high-speed rotatory braking pressure disk 91 can not take place frictional contact with the magnetorheological suspensions in the connecting baffle 3 inner chamber between, cause magnetorheological suspensions can not lead to its temperature to appear the phenomenon that risees because of the friction.
In the technical scheme, the opening direction of the intercepting through hole 93 forms an included angle of 45 degrees with the horizontal plane and the vertical plane.
The arrangement of the inclination angle of the intercepting through hole 93 can increase the entry-cutting angle of the intercepting through hole to the magnetorheological fluid, so that the moment required by the intercepting through hole when the magnetorheological fluid with high viscosity is cut is large, and the braking moment generated by the intercepting through hole during braking is effectively increased.
The use method and the working principle of the embodiment are as follows:
firstly, the main shaft braking mechanism is well connected with a power source, a control system and a mechanical equipment mechanism, when braking is not needed, two groups of movable pressure plates 7 and fixed pressure plates 8 are kept in an initial position state and are tightly attached to a packing groove 92 and a braking pressure plate 91, so that magnetorheological fluid in an inner cavity of a connecting baffle plate 3 is extruded to the outer side of the fixed pressure plate 8 and cannot be contacted with a braking disc body 9, when braking is needed, the hydraulic mechanism 4 is firstly started through the control system, the movable pressure plate 7 and the fixed pressure plate 8 are driven to move outwards in the inner cavity of the connecting baffle plate 3 under the transmission action of a transmission spacer 2, meanwhile, the magnetorheological fluid on one side of the inner cavity of the connecting baffle plate 3 is extruded, the magnetorheological fluid flows along a gap between the movable pressure plate 7 and the inner wall of the connecting baffle plate 3 and is contacted with the braking disc body 9, and then an electromagnetic coil 10 is started through the control, when the transmission main shaft 1 needs to be rotated again, firstly the control system removes the magnetic field applied by the electromagnetic coil 10 to the magnetorheological fluid in the inner cavity of the connecting baffle plate 3 to enable the magnetorheological fluid to become low-viscosity high-fluidity fluid, and starts the hydraulic mechanism 4 again, and moves the movable pressure plate 7 and the fixed pressure plate 8 inwards by using the transmission spacer 2 to extrude the magnetorheological fluid, and enables the magnetorheological fluid to flow to one side of the movable pressure plate 7 again along the gap between the fixed pressure plate 8 and the inner wall of the connecting baffle plate 3 to isolate the contact between the magnetorheological fluid and the braking disc body 9, so that the transmission main shaft 1 can keep efficient and stable rotation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A spindle braking mechanism based on magnetorheological fluid comprises a transmission spindle (1), and is characterized in that: the brake device is characterized in that both sides of the outer surface of the transmission main shaft (1) are movably sleeved with transmission spacers (2), one side of the outer surface of the transmission spacers (2) is fixedly sleeved with a connecting baffle (3), the outer side of the connecting baffle (3) is in threaded connection with a hydraulic mechanism (4), one end of the transmission spacers (2) is connected with the internal transmission of the hydraulic mechanism (4), the inner side of the connecting baffle (3) is fixedly provided with a brake shell (5), the inner wall of the brake shell (5) is provided with a cut-off groove (6), the other end of the transmission spacers (2) is positioned in the inner cavity of the brake shell (5) and fixedly sleeved with a movable pressure plate (7), the other side of the movable pressure plate (7) is movably sleeved with a fixed pressure plate (8), the middle part of the outer surface of the transmission main shaft (1) is positioned between the two groups of fixed pressure plates (, and an electromagnetic coil (10) is arranged in the inner cavity of the connecting baffle plate (3) and positioned on the periphery of the brake shell (5).
2. The spindle braking mechanism based on magnetorheological fluid according to claim 1, wherein: and magnetorheological fluid with the same volume is filled in the inner cavity of the connecting baffle (3).
3. The spindle braking mechanism based on magnetorheological fluid according to claim 1, wherein: brake disk body (9) are including braking pressure disk (91), packing recess (92) have all been seted up to the tow sides of braking pressure disk (91), contact between the inner wall of packing recess (92) and the surface of fixed pressure disk (8), the front of braking pressure disk (91) is equipped with through-hole (93) that dams that the annular array arranged.
4. The spindle braking mechanism based on magnetorheological fluid according to claim 3, wherein: the opening depth of the packing groove (92) is equal to the thickness of the fixed pressure plate (8), and the outer diameter of the closure through hole (93) is larger than the inner diameter of the packing groove (92).
5. The spindle braking mechanism based on magnetorheological fluid according to claim 3, wherein: the opening direction of the intercepting through hole (93) forms an included angle of 45 degrees with the horizontal plane and the vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010510634.7A CN111911565A (en) | 2020-06-08 | 2020-06-08 | Spindle braking mechanism based on magnetorheological fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010510634.7A CN111911565A (en) | 2020-06-08 | 2020-06-08 | Spindle braking mechanism based on magnetorheological fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911565A true CN111911565A (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010510634.7A Withdrawn CN111911565A (en) | 2020-06-08 | 2020-06-08 | Spindle braking mechanism based on magnetorheological fluid |
Country Status (1)
| Country | Link |
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| CN (1) | CN111911565A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531081A (en) * | 2021-06-29 | 2021-10-22 | 范金来 | Hydraulic coupler based on magnetorheological fluid |
| CN113638987A (en) * | 2021-09-14 | 2021-11-12 | 江苏信息职业技术学院 | Protective magnetorheological fluid brake |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2009342A (en) * | 1977-11-01 | 1979-06-13 | Eaton Corp | A brake |
| KR20060039494A (en) * | 2004-11-03 | 2006-05-09 | 현대모비스 주식회사 | Structure of brake disc being used for disc brake apparatus in a motor vehicle |
| US20090266670A1 (en) * | 2008-04-29 | 2009-10-29 | Mcdaniel Andrew Joseph | Magneto-rheological brake-clutch apparatuses and methods |
| CN102562874A (en) * | 2012-01-20 | 2012-07-11 | 中国矿业大学 | Double-disc-type extrusion magneto-rheological brake |
| CN202674106U (en) * | 2012-03-06 | 2013-01-16 | 浙江师范大学 | Extrusion magnetorheological brake |
| US20130019827A1 (en) * | 2011-07-23 | 2013-01-24 | Denso Corporation | Fluid brake device and variable valve timing apparatus |
| CN105351074A (en) * | 2015-12-01 | 2016-02-24 | 重庆理工大学 | Volume percentage variable magnetorheological fluid fan clutch |
| CN106286642A (en) * | 2015-06-08 | 2017-01-04 | 东北大学 | Clearance adjustable type magnetic current changing brake device |
| CN106402195A (en) * | 2016-12-01 | 2017-02-15 | 重庆理工大学 | Shape memory alloy-driven permanent magnet type magnetorheological clutch |
| CN107355490A (en) * | 2017-09-14 | 2017-11-17 | 合肥工业大学 | A kind of magnetorheological transmission brake-by-wire device |
| CN107571255A (en) * | 2017-10-20 | 2018-01-12 | 杭州电子科技大学 | A kind of submissive driver of controllable damping for joint of robot |
| CN109027057A (en) * | 2018-10-18 | 2018-12-18 | 徐州工程学院 | A kind of vehicle magnetic rheological brake |
-
2020
- 2020-06-08 CN CN202010510634.7A patent/CN111911565A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2009342A (en) * | 1977-11-01 | 1979-06-13 | Eaton Corp | A brake |
| KR20060039494A (en) * | 2004-11-03 | 2006-05-09 | 현대모비스 주식회사 | Structure of brake disc being used for disc brake apparatus in a motor vehicle |
| US20090266670A1 (en) * | 2008-04-29 | 2009-10-29 | Mcdaniel Andrew Joseph | Magneto-rheological brake-clutch apparatuses and methods |
| US20130019827A1 (en) * | 2011-07-23 | 2013-01-24 | Denso Corporation | Fluid brake device and variable valve timing apparatus |
| CN102562874A (en) * | 2012-01-20 | 2012-07-11 | 中国矿业大学 | Double-disc-type extrusion magneto-rheological brake |
| CN202674106U (en) * | 2012-03-06 | 2013-01-16 | 浙江师范大学 | Extrusion magnetorheological brake |
| CN106286642A (en) * | 2015-06-08 | 2017-01-04 | 东北大学 | Clearance adjustable type magnetic current changing brake device |
| CN105351074A (en) * | 2015-12-01 | 2016-02-24 | 重庆理工大学 | Volume percentage variable magnetorheological fluid fan clutch |
| CN106402195A (en) * | 2016-12-01 | 2017-02-15 | 重庆理工大学 | Shape memory alloy-driven permanent magnet type magnetorheological clutch |
| CN107355490A (en) * | 2017-09-14 | 2017-11-17 | 合肥工业大学 | A kind of magnetorheological transmission brake-by-wire device |
| CN107571255A (en) * | 2017-10-20 | 2018-01-12 | 杭州电子科技大学 | A kind of submissive driver of controllable damping for joint of robot |
| CN109027057A (en) * | 2018-10-18 | 2018-12-18 | 徐州工程学院 | A kind of vehicle magnetic rheological brake |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531081A (en) * | 2021-06-29 | 2021-10-22 | 范金来 | Hydraulic coupler based on magnetorheological fluid |
| CN113531081B (en) * | 2021-06-29 | 2022-12-23 | 南京工诺科技有限公司 | Hydraulic coupler based on magnetorheological fluid |
| CN113638987A (en) * | 2021-09-14 | 2021-11-12 | 江苏信息职业技术学院 | Protective magnetorheological fluid brake |
| CN113638987B (en) * | 2021-09-14 | 2022-12-02 | 江苏信息职业技术学院 | Protective magnetorheological fluid brake |
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Application publication date: 20201110 |