CN102221065B - Filling opening device of magneto-rheological liquid brake and using method thereof - Google Patents
Filling opening device of magneto-rheological liquid brake and using method thereof Download PDFInfo
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- CN102221065B CN102221065B CN201110128911A CN201110128911A CN102221065B CN 102221065 B CN102221065 B CN 102221065B CN 201110128911 A CN201110128911 A CN 201110128911A CN 201110128911 A CN201110128911 A CN 201110128911A CN 102221065 B CN102221065 B CN 102221065B
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Abstract
The invention relates to a filling opening device of a magneto-rheological liquid brake and a using method thereof. The filling opening device comprises a filling opening body, an exhaust bolt, a valve core, a compression spring and a compression bolt; the filling opening body is provided with a top-to-down main channel, and the main channel is sequentially provided with an exhaust channel section, a connecting channel section and a valve core channel section from top to bottom; the inner part of the exhaust bolt is provided with a first channel; the inner part of the valve core is provided with a second channel; the inner part of the compression bolt is provided with a third channel; the exhaust bolt is installed in the exhaust channel section; the valve core and the compression bolt are all arranged in the valve core channel section, and the valve core is positioned above the compression spring; the valve core and the lower end port of the connecting channel section are close contact, and the upper end outlet of the second channel of the valve core is positioned in the valve core channel; and the compression bolt is installed in the valve core channel section of the filling opening body. Through the filling opening device, not only can the inner cavity exhaust of the magneto-rheological liquid be realized, but also the filling function of the magneto-rheological liquid can be realized.
Description
Technical field
The present invention relates to a kind of parts of magneto-rheologic liquid brake, and the method for using of these parts.
Background technique
Break is used widely as the equipment that makes rotary shaft rotating speed lower or shut down.The traditional braking mode is that mechanical frictin braek is installed: comprise disk type braker and drum brake.The major defect of frictin braek is: frequent or long-time braking is prone to cause brake drum (dish) and friction plate (being brake lining) overheated; And frictional noise is impacted greatly, exists in braking; And heat fade cause easily friction plate and brake disc or brake drum adhesion, come off; Cause Braking efficiency decline, even braking failure and cause accident.People are to the improvement of brake performance for many years; Carry out around break itself mostly, as widen the size of brake drum and friction plate, change the material prescription of friction plate; Change disc type brake etc. into by drum brake, these all are not enough to fundamentally solve the problem of break premature failure.
Magnetic flow liquid is to have the characteristic of magnetic material and the controlled fluid of liquid fluidity, change rapidly in the rheological propertiess such as viscosity that add magnetic flow liquid under the action of a magnetic field, and rheological properties changes along with the variation of externally-applied magnetic field intensity.It is reversible, rapidly and be easy to control that the viscosity of magnetic flow liquid changes, and this makes magnetic flow liquid be used widely in fields such as automobile, machinery, building, mines.And magneto-rheologic liquid brake adopts magnetic flow liquid as working medium, can change the size of brake braking force square through the size that the magnetic intensity of magnetic flow liquid is passed through in adjusting, than the traditional braking device, more is prone to realize brake-by-wire (brake by wire).Entrained air can have a strong impact on its braking ability and stability thereof in the magneto-rheologic liquid brake.At present, magneto-rheologic liquid brake does not have special inlet device.
Summary of the invention
The purpose of this invention is to provide a kind of magneto-rheologic liquid brake inner chamber exhaust that both can realize, can easily magnetic flow liquid be filled to the inlet device and the method for using thereof of the magneto-rheologic liquid brake in the magneto-rheologic liquid brake again.
The technological scheme that realizes the object of the invention is that a kind of inlet device of magneto-rheologic liquid brake comprises inlet body, bleeder screw, spool, holddown spring and hold-down bolt;
The inlet body is provided with the main passage of up/down perforation along its center line, and the main passage is divided into exhaust passage section, connecting passage section and valve core channel section from top to bottom successively; The internal diameter of exhaust passage section and valve core channel section is all greater than the internal diameter of connecting passage section;
Bleeder screw comprises bolt body portion and push rod portion; Push rod portion is connected the bottom central position of bolt body portion from the below; Bolt body portion inside is provided with the first passage of up/down perforation;
The top of spool is cone, and the bottom is a cylindrical body; The inside of spool is provided with the second channel that connects cone outer circumferential face and cylindrical body bottom surface;
The inside of hold-down bolt is provided with the third channel of up/down perforation;
Bleeder screw is installed in by its bolt body portion in the exhaust passage section of inlet body, and the push rod portion of bleeder screw stretches into downwards in the connecting passage section of inlet body; Spool and holddown spring all are arranged in the valve core channel section of inlet body, and spool is positioned at the holddown spring top; The bottom of spool contacts with the upper end of holddown spring; The top of the circular cone body of spool is upwards stretched in the connecting passage section of inlet body; The airtight contact of lower end mouth of the circular cone body of spool and the connecting passage section of inlet body, the upper end outlet of the second channel of spool is positioned at the valve core channel section of inlet body; Hold-down bolt is installed in the valve core channel section of inlet body, and the top of hold-down bolt contacts with the lower end of holddown spring.
Above-mentioned inlet body, bleeder screw, spool, holddown spring and hold-down bolt are the steel integral piece; The bottom of inlet body is the corresponding one section cylindrical body that is provided with the main passage, and this cylindrical outside is provided with outside thread; The middle part and the top of the exhaust passage section of inlet body are provided with internal thread, and the bottom of the valve core channel section of inlet body is provided with internal thread; The outside of the bolt body portion of bleeder screw is provided with outside thread, and the outside of hold-down bolt is provided with outside thread; Bleeder screw is screwed in the section of the exhaust passage of inlet body from the top by its bolt body portion; Hold-down bolt screws in the valve core channel section of inlet body from the below.
Above-mentioned inlet upper part of body is corresponding one section arc cylinder, quadrilateral cylinder, Hexagon cylinder or the octagonal cylinder that is provided with the main passage.
A kind of method for using of inlet device of above-mentioned magneto-rheologic liquid brake has following steps:
1. the external thread rotary of this inlet device through the bottom of its inlet body is combined on the internal thread at fluid entry port place at top of magneto-rheologic liquid brake, thereby with the airtight fluid entry port place that is fixed on magneto-rheologic liquid brake of inlet device;
2. during exhaust; The turn bleeder screw; Make bleeder screw move downward; The push rod portion of bleeder screw promotes spool and together moves downward, and the third channel of the first passage of bleeder screw, the second channel of spool and hold-down bolt forms the path that communicates with the external world with the main passage of inlet body is common, thereby makes gas in the inner chamber of magneto-rheologic liquid brake under self pressure effect and the discharge magneto-rheologic liquid brake;
3. during topping up, pull down bleeder screw, in the section of the exhaust passage of inlet body, install the corresponding to connecting tube joint of outside thread with the bolt body portion of bleeder screw; Under certain filled pressure effect, magnetic flow liquid promotes spool and moves downward, thereby makes magnetic flow liquid inject the inner chamber of magneto-rheologic liquid brake.
The step of the method for using of the inlet device of above-mentioned magneto-rheologic liquid brake 1. in; Before the fluid entry port place that the inlet device is fixed on magneto-rheologic liquid brake; Through screwing or unscrewing the amount of deformation that hold-down bolt is regulated holddown spring; Act on the active force on the spool thereby change holddown spring, both can change the obturation effect of inlet device, the filled pressure of the magnetic flow liquid in the time of can adjusting topping up again.
The present invention has following good effect:
(1) inlet device of the present invention has two kinds of functions, both can cause magnetic flow liquid to overflow because the magneto-rheologic liquid brake chamber pressure rises when preventing break work to magneto-rheologic liquid brake filling magnetic flow liquid under certain pressure; Because this geat device is installed in the vertical highest position of magneto-rheologic liquid brake, can realize the magneto-rheologic liquid brake degassing function again, simplify the structure of break, improve the stability of break through regulating bleeder screw.
(2) inlet device of the present invention is the integral disassembly, assembly structure, installs simply, for ease of maintenaince safeguards, and is easy to use.
(3) inlet device of the present invention can be through screwing or unscrewing hold-down bolt; Regulate the amount of deformation of holddown spring; Act on the active force on the spool thereby change holddown spring, both can change the obturation effect of inlet device, can adjust the filled pressure of magnetic flow liquid again.
Description of drawings
Fig. 1 is a kind of profile schematic perspective view of the inlet device of magneto-rheologic liquid brake of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the elevational schematic view of Fig. 1.
Fig. 4 is the A-A cross-sectional schematic of Fig. 2.
Fig. 5 is the structural representation of the inlet main body among Fig. 4.
The implication of the mark in the above-mentioned accompanying drawing is following:
Bleeder screw 2, bolt body portion 21, first passage 21-1, push rod portion 22,
Spool 3, second channel 31,
Hold-down bolt 5, third channel 51.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 5, the inlet device of the magneto-rheologic liquid brake of present embodiment comprises inlet body 1, bleeder screw 2, spool 3, holddown spring 4 and hold-down bolt 5.Inlet body 1, bleeder screw 2, spool 3, holddown spring 4 and hold-down bolt 5 are the steel integral piece.Holddown spring 4 is a pressure spring.
See Fig. 1 to Fig. 3 and Fig. 5, the top of inlet body 1 is the regular hexagon cylinder, and the bottom is a cylindrical body, and the bottom of inlet body 1 outside is provided with and is used for the outside thread 11-4 that is connected with the shell of magneto-rheologic liquid brake, and outside thread 11-4 is the sealed pipe screw thread.Inlet body 1 is provided with the main passage 11 of up/down perforation along its center line, and main passage 11 is divided into exhaust passage section 11-1, connecting passage section 11-2 and valve core channel section 11-3 from top to bottom successively.The internal diameter of exhaust passage section 11-1 and valve core channel section 11-3 is all greater than the internal diameter of connecting passage section 11-2.Middle part and the top of exhaust passage section 11-1 are provided with internal thread, and the bottom of valve core channel section 11-3 is provided with internal thread.
See Fig. 4, bleeder screw 2 comprises bolt body portion 21 and push rod portion 22.Push rod portion 22 is connected the bottom central position of bolt body portion 21 from the below.Bolt body portion 21 is a cylindrical body, and its outside is provided with outside thread, and its inside is provided with the first passage 21-1 of up/down perforation.
The top of spool 3 is cone, and the bottom is a cylindrical body.The inside of spool 3 is provided with the second channel 31 that connects cone outer circumferential face and cylindrical body bottom surface.
Hold-down bolt 5 is a cylindrical body, and its outside is provided with outside thread, and the inside of hold-down bolt 5 is provided with the third channel 51 of up/down perforation along its center line.
Bleeder screw 2 is screwed downwards in the section 11-1 of the exhaust passage of inlet body 1 from the top by its bolt body portion 21, and the push rod portion 22 of bleeder screw 2 stretches into downwards in the connecting passage section 11-2 of inlet body 1.Spool 3 all is arranged in the valve core channel section 11-3 of inlet body 1 with pressure spring 4, and spool 3 is positioned at pressure spring 4 tops.The bottom of spool 3 contacts with the upper end of pressure spring 4; Spool 3 is under the effect of pressure spring 4; The top of the circular cone body of spool 3 is upwards stretched in the connecting passage section 11-2 of inlet body 1; The airtight contact of lower end mouth of the circular cone body of spool 3 and the connecting passage section 11-2 of inlet body 1, the upper end outlet of the second channel 31 of spool 3 is positioned at the valve core channel section 11-3 of inlet body 1.Hold-down bolt 5 screws in the valve core channel section 11-3 of inlet body 1 from lower direction, the lower end Elastic Contact of the top of hold-down bolt 5 and pressure spring 4.
The method for using of the inlet device of the magneto-rheologic liquid brake of present embodiment is for having following steps:
1. the outside thread 11-4 of this inlet device through the bottom of its inlet body 1 screwed on the internal thread at the fluid entry port place at the top of magneto-rheologic liquid brake, thereby with the airtight fluid entry port place that is fixed on magneto-rheologic liquid brake of inlet device.
2. when needs are discharged the gas in the magneto-rheologic liquid brake inner chamber; Turn bleeder screw 2; Make bleeder screw 2 move downward; The push rod portion 22 of bleeder screw 2 promotes spool 3 and together moves downward; Thereby make main passage 11 common the formation and the extraneous path that communicates of third channel 51 and inlet body 1 of second channel 31 and hold-down bolt 5 of first passage 21-1, spool 3 of bleeder screw 2, thereby make the magneto-rheologic liquid brake inner chamber communicate that the gas in the inner chamber of magneto-rheologic liquid brake is under self pressure effect and the discharge magneto-rheologic liquid brake with ambient atmosphere.
3. when needs fill magnetic flow liquid, pull down bleeder screw 2, in the section 11-1 of the exhaust passage of inlet body 1, install the corresponding to connecting tube joint of outside thread with the bolt body portion 21 of bleeder screw 2.Under certain filled pressure effect, magnetic flow liquid promotes spool 3 and moves downward, thereby magnetic flow liquid is injected the inner chamber of magneto-rheologic liquid brake.After fill finishing, airtight again contact of lower end mouth of the automatic down connecting passage section 11-2 with inlet body 1 of the circular cone body of spool 3 in pressure spring 4 effects.
(embodiment 2)
The remaining part of the inlet device of the magneto-rheologic liquid brake of present embodiment is identical with embodiment 1, and difference is: the top of inlet body 1 is the corresponding one section square column that is provided with main passage 11.
(embodiment 3)
The remaining part of the inlet device of the magneto-rheologic liquid brake of present embodiment is identical with embodiment 1, and difference is: the top of inlet body 1 is the corresponding one section arc cylinder that is provided with main passage 11.
(embodiment 4)
The remaining part of the inlet device of the magneto-rheologic liquid brake of present embodiment is identical with embodiment 1, and difference is: the top of inlet body 1 is the corresponding one section octagon cylinder that is provided with main passage 11.
The foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to the working of an invention mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (5)
1. the inlet device of a magneto-rheologic liquid brake is characterized in that: comprise inlet body (1), bleeder screw (2), spool (3), holddown spring (4) and hold-down bolt (5);
Inlet body (1) is provided with the main passage (11) of up/down perforation along its center line, and main passage (11) are divided into exhaust passage section (11-1), connecting passage section (11-2) and valve core channel section (11-3) from top to bottom successively; The internal diameter of exhaust passage section (11-1) and valve core channel section (11-3) is all greater than the internal diameter of connecting passage section (11-2);
Bleeder screw (2) comprises bolt body portion (21) and push rod portion (22); Push rod portion (22) is connected the bottom central position of bolt body portion (21) from the below; Bolt body portion (21) inside is provided with the first passage (21-1) of up/down perforation;
The top of spool (3) is cone, and the bottom is a cylindrical body; The inside of spool (3) is provided with the second channel (31) that connects cone outer circumferential face and cylindrical body bottom surface;
The inside of hold-down bolt (5) is provided with the third channel (51) of up/down perforation;
Bleeder screw (2) is installed in by its bolt body portion (21) in the exhaust passage section (11-1) of inlet body (1), and the push rod portion (22) of bleeder screw (2) stretches into downwards in the connecting passage section (11-2) of inlet body (1); Spool (3) and holddown spring (4) all are arranged in the valve core channel section (11-3) of inlet body (1), and spool (3) is positioned at holddown spring (4) top; The bottom of spool (3) contacts with the upper end of holddown spring (4); The top of the circular cone body of spool (3) is upwards stretched in the connecting passage section (11-2) of inlet body (1); The airtight contact of lower end mouth of the circular cone body of spool (3) and the connecting passage section (11-2) of inlet body (1), the upper end outlet of the second channel (31) of spool (3) is positioned at the valve core channel section (11-3) of inlet body (1); Hold-down bolt (5) is installed in the valve core channel section (11-3) of inlet body (1), and the top of hold-down bolt (5) contacts with the lower end of holddown spring (4).
2. according to the inlet device of the described magneto-rheologic liquid brake of claim 1, it is characterized in that: said inlet body (1), bleeder screw (2), spool (3), holddown spring (4) and hold-down bolt (5) are the steel integral piece; The bottom of inlet body (1) is for being provided with the corresponding one section cylindrical body of main passage (11), and this cylindrical outside is provided with outside thread (11-4); The middle part and the top of the exhaust passage section (11-1) of inlet body (1) are provided with internal thread, and the bottom of the valve core channel section (11-3) of inlet body (1) is provided with internal thread; The outside of the bolt body portion (21) of bleeder screw (2) is provided with outside thread, and the outside of hold-down bolt (5) is provided with outside thread; Bleeder screw (2) is screwed in the exhaust passage section (11-1) of inlet body (1) from the top by its bolt body portion (21); Hold-down bolt (5) screws in the valve core channel section (11-3) of inlet body (1) from the below.
3. according to the inlet device of the described magneto-rheologic liquid brake of claim 2, it is characterized in that: the top of said inlet body (1) is for being provided with corresponding one section quadrilateral cylinder, Hexagon cylinder or the octagonal cylinder of main passage (11).
4. the method for using of the inlet device of the described magneto-rheologic liquid brake of claim 2 is characterized in that having following steps:
1. the outside thread (11-4) of this inlet device through the bottom of its inlet body (1) screwed on the internal thread at the fluid entry port place at the top of magneto-rheologic liquid brake, thereby with the airtight fluid entry port place that is fixed on magneto-rheologic liquid brake of inlet device;
2. during exhaust; Turn bleeder screw (2); Make bleeder screw (2) move downward; The push rod portion (22) of bleeder screw (2) promotes spool (3) and together moves downward; The third channel (51) of the first passage (21-1) of bleeder screw (2), the second channel (31) of spool (3) and hold-down bolt (5) and the main passage (11) of inlet body (1) are common to be formed and the extraneous path that communicates, thereby makes gas in the inner chamber of magneto-rheologic liquid brake under self pressure effect and the discharge magneto-rheologic liquid brake;
3. during topping up, pull down bleeder screw (2), in the exhaust passage section (11-1) of inlet body (1), install the corresponding to connecting tube joint of outside thread with the bolt body portion (21) of bleeder screw (2); Under certain filled pressure effect, magnetic flow liquid promotes spool (3) and moves downward, thereby makes magnetic flow liquid inject the inner chamber of magneto-rheologic liquid brake.
5. according to the method for using of the inlet device of the described magneto-rheologic liquid brake of claim 4; It is characterized in that: step 1. in; Before the fluid entry port place that the inlet device is fixed on magneto-rheologic liquid brake,, act on the active force on the spool (3) thereby change holddown spring (4) through screwing or unscrewing the amount of deformation that hold-down bolt (5) is regulated holddown spring (4); Both can change the obturation effect of inlet device, the filled pressure of the magnetic flow liquid in the time of topping up can being adjusted again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110128911A CN102221065B (en) | 2011-05-18 | 2011-05-18 | Filling opening device of magneto-rheological liquid brake and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110128911A CN102221065B (en) | 2011-05-18 | 2011-05-18 | Filling opening device of magneto-rheological liquid brake and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221065A CN102221065A (en) | 2011-10-19 |
| CN102221065B true CN102221065B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110128911A Expired - Fee Related CN102221065B (en) | 2011-05-18 | 2011-05-18 | Filling opening device of magneto-rheological liquid brake and using method thereof |
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| Country | Link |
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| CN (1) | CN102221065B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758897B (en) * | 2014-01-07 | 2015-12-30 | 杭州电子科技大学 | Magneto-rheological brake exhauster and using method thereof |
| CN109991195A (en) * | 2019-04-24 | 2019-07-09 | 浙江警察学院 | A kind of SPR detector single channel micro-fluidic chip clamping system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558188A (en) * | 1994-07-12 | 1996-09-24 | Fichtel & Sachs Ag | Vibration damper for a motor vehicle suspension |
| CN101235861A (en) * | 2007-01-30 | 2008-08-06 | 株式会社万都 | Solenoid valve of shock absorber |
| CN201461842U (en) * | 2009-06-10 | 2010-05-12 | 重庆材料仪表研究所 | Magnetorheological fluid elastic shock absorber |
| CN101839299A (en) * | 2010-02-09 | 2010-09-22 | 谭晓婧 | Two-dimensional magnetorheological damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8104591B2 (en) * | 2005-08-11 | 2012-01-31 | Eko Sport, Inc. | Magnetic valve for shock absorbers |
-
2011
- 2011-05-18 CN CN201110128911A patent/CN102221065B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558188A (en) * | 1994-07-12 | 1996-09-24 | Fichtel & Sachs Ag | Vibration damper for a motor vehicle suspension |
| CN101235861A (en) * | 2007-01-30 | 2008-08-06 | 株式会社万都 | Solenoid valve of shock absorber |
| CN201461842U (en) * | 2009-06-10 | 2010-05-12 | 重庆材料仪表研究所 | Magnetorheological fluid elastic shock absorber |
| CN101839299A (en) * | 2010-02-09 | 2010-09-22 | 谭晓婧 | Two-dimensional magnetorheological damper |
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Owner name: JIANGSU UNIVERSITY OF TECHNOLOGY Effective date: 20130819 Owner name: HAININ LIANKE AUTOMOBILE PARTS CO., LTD. Free format text: FORMER OWNER: JIANGSU TECHNOLOGY NORMAL COLLEGE Effective date: 20130819 |
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Effective date of registration: 20130819 Address after: 226600 6, 198 the Yellow Sea Avenue (West), Haian Town, Haian County, Jiangsu, Nantong Patentee after: Haian Lianke Automobile Parts Co., Ltd. Patentee after: Jiangsu University of Technology Address before: 213000 Changzhou Province in the Clock Tower District, Jiangsu, Wu Road, No. 1801 Patentee before: Jiangsu Teachers University of Technology |
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Granted publication date: 20120905 Termination date: 20200518 |