CN212377003U - Mixed flow type magnetorheological valve adopting double excitation of permanent magnet and excitation coil - Google Patents
Mixed flow type magnetorheological valve adopting double excitation of permanent magnet and excitation coil Download PDFInfo
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- CN212377003U CN212377003U CN202021051327.9U CN202021051327U CN212377003U CN 212377003 U CN212377003 U CN 212377003U CN 202021051327 U CN202021051327 U CN 202021051327U CN 212377003 U CN212377003 U CN 212377003U
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Abstract
The utility model discloses an adopt two excitation of permanent magnet and excitation coil to mix flowing formula magnetorheological valve mainly comprises end cover, magnetic conduction dish, magnetic conduction ring, magnetism isolating sheet, magnetism isolating ring, sleeve, valve body, case, annular permanent magnet and excitation coil etc.. When the permanent magnet and the excitation coil generate the same magnetic field direction when being electrified, the magnetorheological fluid in the damping gap generates the magnetorheological effect, and larger pressure drop is generated; when the permanent magnet and the excitation coil generate magnetic fields in opposite directions when the permanent magnet is electrified, the basic pressure drop and the small-range pressure drop in the valve can be adjusted by controlling the electrified current of the excitation coil; when the exciting coil is not electrified, the permanent magnet still generates a magnetic field. The utility model discloses use permanent magnet and excitation coil cooperation, can realize three kinds of effective mode, increased pressure drop control range, can realize the stepless regulation of pressure drop, fields such as specially adapted speed control, accurate positioning.
Description
Technical Field
The utility model relates to a magnetorheological valve especially relates to an adopt two mixed flow formula magnetorheological valve of excitation of permanent magnet and excitation coil.
Background
The traditional hydraulic valve working medium is common hydraulic oil, has the advantages of simple structure, no need of external energy input and the like, but also has the problems of low working efficiency, difficult control, slow response, high noise and the like, and cannot adapt to various changed working conditions.
The emergence of the magnetorheological fluid brings a new idea for solving the problems, the magnetorheological fluid has instantaneous reversible rheological property under the action of a magnetic field, the shear yield strength of the magnetorheological fluid can be changed by controlling the magnetic field strength, and the stepless regulation of the output pressure drop of the magnetorheological valve is realized.
The conventional magnetorheological valve only adopts the magnet exciting coil to generate a magnetic field, and after the valve stops operating for a period of time, the magnetorheological fluid magnetic particles in the valve can be settled or aggregated to form hard blocks and cakes. When the magnetorheological valve is operated again, the hard mass and cake can block the damping channel, so that the pressure drop of the magnetorheological valve is uncontrollable. In addition, if the system power supply fails and the exciting current of the magnetorheological valve is zero, the output voltage drop of the magnetorheological valve is small and cannot be adjusted, and the anti-failure safety performance is low. Meanwhile, the conventional magnetorheological valve has the defect that the radial size of the valve is overlarge due to the fact that the magnet exciting coil is arranged on the inner side of the valve body, and the conventional magnetorheological valve is not beneficial to being used in narrow and small working space.
Disclosure of Invention
In order to overcome the problem that exists among the background art, the utility model provides an adopt two excitation of permanent magnet and excitation coil to mix flowing type magnetorheological valve. The magnet exciting coil is matched with the annular permanent magnets, and a pair of annular permanent magnets are additionally arranged on two sides of the valve core to provide a fixed magnetic field for the magnetorheological fluid at the damping gap. This mix flowing formula magnetorheological valve can select required permanent magnet type to reach the regulation to the basis pressure drop in the valve according to the actual work needs, under the prerequisite that does not increase the radial dimension of valve body, installs excitation coil in the case recess, has prolonged effectual damping clearance length for controllable pressure drop scope is bigger, sets up the magnetism sheet in the middle of the magnetic ring of controlling simultaneously, makes more the process axial circular flow damping clearance of magnetic force line, and magnetic field utilization is higher. The utility model provides a controllable pressure drop that mixed flow formula magnetorheological valve produced can be effectively applied to fields such as speed control and accurate positioning. When the annular permanent magnet works, the annular permanent magnet and the excitation coil act together to generate a magnetic field, and when the direction of the magnetic field generated by the annular permanent magnet is the same as that generated by the excitation coil when the annular permanent magnet is electrified, magnetorheological fluid flows through the damping gap to generate a magnetorheological effect, so that a larger pressure drop is generated; when the direction of the magnetic field generated by the annular permanent magnet is opposite to the direction of the magnetic field generated by the exciting coil when the annular permanent magnet is electrified, the basic pressure drop and the small-range pressure drop in the valve can be adjusted by controlling the size of the current electrified by the exciting coil; when the magnet exciting coil is not electrified, the annular permanent magnet still generates a magnetic field, so that the automatic failure prevention performance of the magnetorheological valve is improved.
The utility model provides a technical scheme that its technical problem adopted includes: the magnetic valve comprises a left end cover (1), a left magnetic conductive disc (2), a left magnetic conductive ring (3), a magnetic isolation ring (4), a magnetic isolation sheet (5), a valve body (6), a right magnetic conductive disc (7), a right magnetic conductive ring (8), a right end cover (9), a left valve core end cover (10), a left permanent magnet (11), an excitation coil (12), a sleeve (13), a right permanent magnet (14), a right valve core end cover (15) and a valve core (16); a circular threaded through hole is processed in the middle of the left end cover (1), and a circular groove is processed on the right end face of the left end cover; the left end cover (1) is fixedly connected with the valve body (6) through a screw; the left end cover (1) and the left magnetic conductive ring (3) are sealed through a sealing ring; the circumferential outer surface of the left magnetic conductive disc (2) is in interference fit with the circumferential inner surface of the left magnetic conductive ring (3); a round through hole is processed in the middle of the left magnetic conductive disc (2); a boss is processed on the right end face of the left magnetic conductive disc (2); the left end face of the left magnetic conductive disc (2) is axially positioned through the right end face of the left end cover (1), and the right end face of the left magnetic conductive disc is axially positioned through a convex shoulder on the left end face of the left magnetic conductive ring (3); the circumferential outer surface of the left magnetic conductive ring (3) is in interference fit with the circumferential inner surface of the valve body (6); the left magnetic conductive ring (3) is axially positioned through the right end face of the left end cover (1); the magnetic shielding sheet (5) is axially positioned through the right end face of the left magnetic conductive ring (3); the left end cover (10) of the valve core is in interference fit with the inner surface of the sleeve (13); the left end cover (10) of the valve core is axially positioned through a boss of the left magnetic conductive disc (2); the left end face of the left permanent magnet (11) is axially positioned through the right end face of the left end cover (10) of the valve core; the circumferential inner surface of the left permanent magnet (11) is in clearance fit with the circumferential outer surface of the valve core (16); the circumferential outer surface of the magnetism isolating ring (4) is in interference fit with the circumferential inner surface of the sleeve (13); the magnetism isolating ring (4) is axially positioned through the right end face of the left permanent magnet (11); the outer surface of the valve core (16) is processed with a circular groove, the excitation coil (12) is wound in the circular groove, and the lead wire of the excitation coil is led out from the lead wire holes of the magnetism isolating ring (4), the right magnetism conducting ring (8) and the valve body (6); the left end face of the right permanent magnet (14) is axially positioned through the right end face of the magnetism isolating ring (4); the circumferential inner surface of the right permanent magnet (14) is in clearance fit with the circumferential outer surface of the valve core (16); the right end cover (15) of the valve core is in interference fit with the inner surface of the sleeve (13); the left end face of the valve core right end cover (15) is axially positioned through the right end face of the valve core (16); the outer circumferential surface of the right magnetic conductive ring (8) is in interference fit with the inner circumferential surface of the valve body (6); the left end face of the right magnetic conductive ring (8) is axially positioned through the right end face of the magnetic separation sheet (5); the outer circumferential surface of the right magnetic conductive disk (7) is in interference fit with the inner circumferential surface of the right magnetic conductive ring (8); a boss is processed on the left end face of the right magnetic conductive disc (7), and the left end of the right magnetic conductive disc (7) is axially positioned with the right end face of the valve core right end cover (15) through the boss; a round through hole is processed in the middle of the right magnetic conductive disc (7); a circular threaded through hole is processed in the middle of the right end cover (9); the right end cover (9) is fixedly connected with the valve body (6) through a screw; the left end surface of the right end cover (9) is sealed with the right magnetic conductive ring (8) through a sealing ring; a circular through hole in the middle of the left magnetic conductive disc (2) forms a circular tube damping gap I (17); a radial disc damping gap II (18) is formed in a gap between the left magnetic conductive disc (2) and the left end cover (10) of the valve core; gaps among the left magnetic conductive ring (3), the magnetic isolation sheet (5), the right magnetic conductive ring (8) and the sleeve (13) form an axial circular ring damping gap III (19); a radial disc damping gap IV (20) is formed in a gap between the valve core right end cover (15) and the right magnetic conductive disc (7); a circular through hole in the middle of the right magnetic conductive disc (7) forms a circular tube damping gap V (21); the circular tube damping gap I (17), the radial disc damping gap II (18), the axial circular ring damping gap III (19), the radial disc damping gap IV (20) and the circular tube damping gap V (21) are connected in series to form a mixed flow type liquid flow channel of the magnetorheological valve; the left permanent magnet (11) and the right permanent magnet (14) on the two sides of the valve core can select the type of the magnets according to the actual working situation, so that the requirements of the required working basic pressure drop and the pressure drop adjustable range are met; the magnetic separation sheet (5) enables magnetic lines of force at the damping gap III (19) of the axial ring to be distributed densely, and increases the pressure drop at the damping gap III (19) of the axial ring; the left permanent magnet (11), the right permanent magnet (14) and the magnet exciting coil (12) jointly act to generate a magnetic field, when the direction of the magnetic field generated by the two annular permanent magnets is the same as the direction of the magnetic field generated by the magnet exciting coil (12) when the two annular permanent magnets are electrified, under the action of the joint magnetic field, the magnetorheological fluid generates a magnetorheological effect in the five sections of damping gaps to generate larger pressure drop, so that the flow is controlled; when the direction of the magnetic field generated by the two annular permanent magnets is opposite to the direction of the magnetic field generated by the excitation coil (12) when the two annular permanent magnets are electrified, the current of the excitation coil (12) is controlled, so that the voltage drop lower than the basic voltage drop can be adjusted, and the adjustment range of the magneto-rheological valve is wider; when the excitation coil (12) is not electrified, the annular permanent magnet still generates a magnetic field, so that the failure prevention performance of the magnetorheological valve is improved. The left magnetic conductive disc (2), the left magnetic conductive ring (3), the right magnetic conductive disc (7), the left end cover (10) of the valve core, the sleeve (13), the right end cover (15) of the valve core, the right magnetic conductive ring (8) and the valve core (16) are made of low-carbon steel magnetic conductive materials; the left end cover (1), the magnetism isolating ring (4), the magnetism isolating sheet (5), the valve body (6) and the right end cover (9) are made of stainless steel non-magnetic materials.
Compared with the background art, the utility model, the beneficial effect who has is:
(1) the utility model discloses permanent magnet and excitation coil combined action produce the magnetic field, and when annular permanent magnet produced the magnetic field direction and the excitation coil produced the magnetic field direction the same when circular telegram, the magneto-rheological fluid in the damping clearance takes place the magneto rheological effect, produces great pressure drop to realize the control to the flow; when the direction of the magnetic field generated by the annular permanent magnet is opposite to the direction of the magnetic field generated by the exciting coil when the annular permanent magnet is electrified, the basic pressure drop and the small-range pressure drop in the valve can be adjusted by controlling the size of the current electrified by the exciting coil; when the excitation coil is not electrified, the annular permanent magnet still generates a magnetic field; the utility model discloses use annular permanent magnet and excitation coil cooperation, can realize three kinds of effective working mode, increased the control range of pressure drop, can realize the infinitely variable control of pressure drop, can be better be applicable to fields such as speed control, accurate positioning to the application range of magnetorheological valve has been widened.
(2) The utility model discloses place excitation coil in the case recess, place the permanent magnet in the case both sides, under the prerequisite that does not increase the radial dimension of valve body, increased the magnetic induction strength of damping clearance department, the pressure drop adjustable range increases.
(3) The utility model adopts the annular permanent magnet to enable the magnetorheological fluid in the working cavity to be always under the action of the magnetic field, thereby solving the problem that the magnetorheological fluid is easy to generate standing sedimentation when the conventional magnetorheological valve is de-energized, thereby blocking a damping channel; in addition, the annular permanent magnet is used, so that the phenomenon that the output voltage drop is too small when the current of the magnet exciting coil is zero due to system faults is avoided, and the stability and the safety of the system are improved.
(4) The utility model discloses set up the magnetism sheet that separates in the middle of controlling the magnetic conduction ring for more through axial circulation damping clearance of magnetic line of force, magnetic field utilization ratio is higher.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the structure of the damping gap of the liquid flow channel of the present invention.
Fig. 3 is a schematic diagram of the distribution of magnetic lines of force with the same direction of the magnetic field generated by the field coil and the annular permanent magnet.
Fig. 4 is a schematic diagram of the distribution of magnetic lines of force when the magnetic field generated by the magnet exciting coil and the annular permanent magnet of the present invention is in opposite directions.
Fig. 5 is a schematic diagram of the distribution of magnetic lines of force when the ring-shaped permanent magnet of the present invention generates a magnetic field.
Fig. 6 is a schematic view of the sleeve structure of the present invention.
Fig. 7 is a schematic view of the structure of the right magnetic conductive disk of the present invention.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention, which includes a left end cap (1), a left magnetic conductive disk (2), a left magnetic conductive ring (3), a magnetic isolation ring (4), a magnetic isolation sheet (5), a valve body (6), a right magnetic conductive disk (7), a right end cap (9), a left valve core end cap (10), a left permanent magnet (11), an excitation coil (12), a sleeve (13), a right permanent magnet (14), a right valve core end cap (15), a right magnetic conductive ring (8) and a valve core (16).
FIG. 2 is a schematic view of the damping gap structure of the liquid flow channel of the present invention, wherein a circular through hole in the middle of the left magnetic conductive plate (2) forms a circular tube damping gap I (17); a radial disc damping gap II (18) is formed in a gap between the left magnetic conductive disc (2) and the left end cover (10) of the valve core; gaps among the left magnetic conductive ring (3), the magnetic isolation sheet (5), the right magnetic conductive ring (8) and the sleeve (13) form an axial circular ring damping gap III (19); a radial disc damping gap IV (20) is formed in a gap between the valve core right end cover (15) and the right magnetic conductive disc (7); a circular through hole in the middle of the right magnetic conductive disc (7) forms a circular tube damping gap V (21); the circular tube damping gap I (17), the radial disc damping gap II (18), the axial circular ring damping gap III (19), the radial disc damping gap IV (20) and the circular tube damping gap V (21) are connected in series to form a mixed flow type liquid flow channel of the magnetorheological valve.
Fig. 3 is the magnetic force line distribution schematic diagram of the magnetic field direction of the magnetic field generated by the magnetic exciting coil and the annular permanent magnet of the present invention is the same, the magnetic force line generated by the magnetic exciting coil (12) sequentially passes through the left magnetic conductive disk (2), the left magnetic conductive ring (3), the sleeve (13), the right magnetic conductive ring (8) and the right magnetic conductive disk (7), then passes through the valve core right end cover (15), the valve core (16) and the valve core left end cover (10), and finally forms a closed loop at the left magnetic conductive disk (2). Magnetic lines of force generated by the left permanent magnet (11) and the right permanent magnet (14) sequentially pass through the left end cover (10), the left magnetic conductive disc (2), the left magnetic conductive ring (3), the sleeve (13), the right magnetic conductive ring (8) and the right magnetic conductive disc (7) of the valve core from the N pole, then pass through the right end cover (15) of the valve core, a part of the magnetic lines of force return to the S pole of the right permanent magnet (14), and the magnetic lines of force of the N pole of the right permanent magnet (14) and the magnetic lines of force of the left permanent magnet (11) return to the S pole of the left permanent magnet (11) through the. The magnetic field generating directions of the magnet exciting coil (12) and the annular permanent magnet are the same, the magnetic field intensity in the damping gap is further enhanced, and the pressure drop performance of the magnetorheological valve is improved.
Fig. 4 is the magnetic force line distribution schematic diagram when the magnetic field generated by the magnet exciting coil and the annular permanent magnet is opposite in direction, the magnetic force line generated by the magnet exciting coil (12) sequentially passes through the left magnetic conductive disk (2), the valve core left end cover (10), the valve core (16) and the valve core right end cover (15), then passes through the right magnetic conductive disk (7), the right magnetic conductive ring (8), the sleeve (13) and the left magnetic conductive ring (3), and finally forms a closed loop at the left magnetic conductive disk (2). Magnetic lines of force generated by the left permanent magnet (11) and the right permanent magnet (14) sequentially pass through the left end cover (10), the left magnetic conductive disc (2), the left magnetic conductive ring (3), the sleeve (13), the right magnetic conductive ring (8) and the right magnetic conductive disc (7) of the valve core from the N pole, then pass through the right end cover (15) of the valve core, a part of the magnetic lines of force return to the S pole of the right permanent magnet (14), and the magnetic lines of force of the N pole of the right permanent magnet (14) and the magnetic lines of force of the left permanent magnet (11) return to the S pole of the left permanent magnet (11) through the. When the directions of the magnetic fields generated by the magnet exciting coil (12) and the annular permanent magnet are opposite, the directions of the magnetic lines of force generated by the magnet exciting coil (12) and the annular permanent magnet are opposite, and the magnetic fields generated by the magnet exciting coil (12) and the annular permanent magnet can be mutually offset by controlling the magnitude of the electrifying current of the magnet exciting coil (12), so that the effect of reducing the basic pressure drop in the valve is finally realized.
Fig. 5 is the utility model discloses magnetic line of force distribution schematic diagram when annular permanent magnet produces magnetic field, magnetic line of force that left permanent magnet (11) and right permanent magnet (14) produced is sent from the N utmost point and is passed case left end lid (10) in proper order, left magnetic conductive dish (2), left magnetic conductive ring (3), sleeve (13), right magnetic conductive ring (8), right magnetic conductive dish (7), after that through case right-hand member lid (15), right permanent magnet (14) S utmost point is got back to some magnetic line of force, the magnetic line of force of right permanent magnet (14) N utmost point magnetic line and left permanent magnet (11) gets back left permanent magnet (11) S utmost point through case (16) and forms closed return circuit. When the magnet exciting coil (12) is not electrified and only the left permanent magnet (11) and the right permanent magnet (14) generate magnetic fields, a certain basic pressure drop can be generated when the magnetorheological valve is not electrified, and the automatic failure prevention performance of the magnetorheological valve is improved.
Fig. 6 is a schematic view of the sleeve structure of the present invention, the sleeve (13) is provided with four bosses uniformly distributed on the outer circumference, and the boss thickness is the width of the axial ring damping gap iii (19).
Fig. 7 is the structure diagram of the right magnetic conductive disk of the utility model, a circular through hole is processed on the right magnetic conductive disk (7), a waist-shaped boss is processed on the left end face of the right magnetic conductive disk, and the boss is the width of a radial disk damping gap iv (20).
The utility model discloses the theory of operation as follows:
when the magnetic field generating device works, the left permanent magnet (11), the right permanent magnet (14) and the excitation coil (12) act together to generate a magnetic field, when the direction of the magnetic field generated by the left permanent magnet (11) and the right permanent magnet (14) is the same as the direction of the magnetic field generated by the excitation coil (12) when the left permanent magnet and the right permanent magnet are electrified, magnetorheological fluid generates a magnetorheological effect in a damping gap flowing through, the magnetorheological fluid rapidly becomes a semi-solid state under the action of the magnetic field, the viscosity rapidly increases and increases along with the increase of the external magnetic induction intensity, and therefore; when the direction of the magnetic field generated by the left permanent magnet (11) and the right permanent magnet (14) is opposite to the direction of the magnetic field generated by the excitation coil (12) when the left permanent magnet and the right permanent magnet are electrified, the basic pressure drop and the small-range pressure drop in the valve can be adjusted by controlling the size of the current electrified by the excitation coil; when the exciting coil (12) is powered off, the left permanent magnet (11) and the right permanent magnet (14) still generate magnetic fields, so that the automatic failure prevention performance of the magnetorheological valve is improved.
Claims (3)
1. A hybrid flow magnetorheological valve employing dual excitation of permanent magnets and excitation coils, comprising: the magnetic valve comprises a left end cover (1), a left magnetic conductive disc (2), a left magnetic conductive ring (3), a magnetic isolation ring (4), a magnetic isolation sheet (5), a valve body (6), a right magnetic conductive disc (7), a right magnetic conductive ring (8), a right end cover (9), a left valve core end cover (10), a left permanent magnet (11), an excitation coil (12), a sleeve (13), a right permanent magnet (14), a right valve core end cover (15) and a valve core (16); a circular threaded through hole is processed in the middle of the left end cover (1), and a circular groove is processed on the right end face of the left end cover; the left end cover (1) is fixedly connected with the valve body (6) through a screw; the left end cover (1) and the left magnetic conductive ring (3) are sealed through a sealing ring; the outer circumferential surface of the left magnetic conductive disk (2) is in transition fit with the inner circumferential surface of the left magnetic conductive ring (3); a round through hole is processed in the middle of the left magnetic conductive disc (2); a boss is processed on the right end face of the left magnetic conductive disc (2); the left end face of the left magnetic conductive disc (2) is axially positioned through the right end face of the left end cover (1), and the right end face of the left magnetic conductive disc is axially positioned through a convex shoulder on the left end face of the left magnetic conductive ring (3); the circumferential outer surface of the left magnetic conductive ring (3) is in interference fit with the circumferential inner surface of the valve body (6); the left magnetic conductive ring (3) is axially positioned through the right end face of the left end cover (1); the magnetic shielding sheet (5) is axially positioned through the right end face of the left magnetic conductive ring (3); the left end cover (10) of the valve core is in interference fit with the inner surface of the sleeve (13); the left end cover (10) of the valve core is axially positioned through a boss of the left magnetic conductive disc (2); the left end face of the left permanent magnet (11) is axially positioned through the right end face of the left end cover (10) of the valve core; the circumferential inner surface of the left permanent magnet (11) is in clearance fit with the circumferential outer surface of the valve core (16); the circumferential outer surface of the magnetism isolating ring (4) is in interference fit with the circumferential inner surface of the sleeve (13); the magnetism isolating ring (4) is axially positioned through the right end face of the left permanent magnet (11); the outer surface of the valve core (16) is processed with a circular groove, the excitation coil (12) is wound in the circular groove, and the lead wire of the excitation coil is led out from the lead wire holes of the magnetism isolating ring (4), the right magnetism conducting ring (8) and the valve body (6); the left end face of the right permanent magnet (14) is axially positioned through the right end face of the magnetism isolating ring (4); the circumferential inner surface of the right permanent magnet (14) is in clearance fit with the circumferential outer surface of the valve core (16); the right end cover (15) of the valve core is in interference fit with the inner surface of the sleeve (13); the left end face of the valve core right end cover (15) is axially positioned through the right end face of the valve core (16); the outer circumferential surface of the right magnetic conductive ring (8) is in interference fit with the inner circumferential surface of the valve body (6); the left end face of the right magnetic conductive ring (8) is axially positioned through the right end face of the magnetic separation sheet (5); the outer circumferential surface of the right magnetic conductive disk (7) is in transition fit with the inner circumferential surface of the right magnetic conductive ring (8); a boss is processed on the left end face of the right magnetic conductive disc (7); the left end of the right magnetic conductive disc (7) is axially positioned with the right end face of the valve core right end cover (15) through a boss; a round through hole is processed in the middle of the right magnetic conductive disc (7); a circular threaded through hole is processed in the middle of the right end cover (9); the right end cover (9) is fixedly connected with the valve body (6) through a screw; the left end surface of the right end cover (9) is sealed with the right magnetic conductive ring (8) through a sealing ring.
2. A hybrid flow magnetorheological valve excited by both a permanent magnet and an excitation coil in accordance with claim 1, wherein: a circular through hole in the middle of the left magnetic conductive disc (2) forms a circular tube damping gap I (17); a radial disc damping gap II (18) is formed in a gap between the left magnetic conductive disc (2) and the left end cover (10) of the valve core; gaps among the left magnetic conductive ring (3), the magnetic isolation sheet (5), the right magnetic conductive ring (8) and the sleeve (13) form an axial circular ring damping gap III (19); a radial disc damping gap IV (20) is formed in a gap between the valve core right end cover (15) and the right magnetic conductive disc (7); a circular through hole in the middle of the right magnetic conductive disc (7) forms a circular tube damping gap V (21); the circular tube damping gap I (17), the radial disc damping gap II (18), the axial circular ring damping gap III (19), the radial disc damping gap IV (20) and the circular tube damping gap V (21) are connected in series to form a mixed flow type liquid flow channel of the magnetorheological valve.
3. A hybrid flow magnetorheological valve excited by both a permanent magnet and an excitation coil in accordance with claim 1, wherein: the left magnetic conductive disc (2), the left magnetic conductive ring (3), the right magnetic conductive disc (7), the left end cover (10) of the valve core, the sleeve (13), the right end cover (15) of the valve core, the right magnetic conductive ring (8) and the valve core (16) are made of low-carbon steel magnetic conductive materials; the left end cover (1), the magnetism isolating ring (4), the magnetism isolating sheet (5), the valve body (6) and the right end cover (9) are made of stainless steel non-magnetic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021051327.9U CN212377003U (en) | 2020-06-10 | 2020-06-10 | Mixed flow type magnetorheological valve adopting double excitation of permanent magnet and excitation coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021051327.9U CN212377003U (en) | 2020-06-10 | 2020-06-10 | Mixed flow type magnetorheological valve adopting double excitation of permanent magnet and excitation coil |
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| Publication Number | Publication Date |
|---|---|
| CN212377003U true CN212377003U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021051327.9U Expired - Fee Related CN212377003U (en) | 2020-06-10 | 2020-06-10 | Mixed flow type magnetorheological valve adopting double excitation of permanent magnet and excitation coil |
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| Country | Link |
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| CN (1) | CN212377003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923123A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Hybrid multichannel magnetorheological valve |
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2020
- 2020-06-10 CN CN202021051327.9U patent/CN212377003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923123A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Hybrid multichannel magnetorheological valve |
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