A magnetorheological damping spring vibration isolator

Abstract

This invention discloses a magnetorheological damping spring isolator, relating to the field of damper technology. It includes an upper housing and a lower housing, with damping springs distributed between them. A hydraulic cylinder is located at the center of the lower housing, with a cavity formed inside the cylinder. A piston is installed within the cavity, with a gap between the cylinder and the piston. An auxiliary port is also included, located inside the piston. An iron core is fixedly installed within the auxiliary port. An excitation coil is located outside the iron core, and an external control circuit is connected to control the damping magnitude of the spring isolator. This device uses a combination of shaped and stretching components to lift the damping fluid, allowing more magnetorheological fluid to enter the high magnetic field zone, improving the damping response speed. In operation, it reduces the effective working volume, lowering energy consumption. Furthermore, when an external impact causes the piston to displace to a certain extent, a limiting rod forms mechanical contact with the coil, automatically limiting the displacement and thus protecting the circuit components.

Description

Technical Field

[0001] This invention relates to the field of damper technology, and more specifically, to a magnetorheological damping spring isolator. Background Technology

[0002] In the field of vibration reduction and noise reduction of large rotating machinery, steel spring vibration isolators are a common method for foundation support. The core principle is to use the low-frequency characteristics of springs to isolate the high-frequency disturbance force generated by the operation of the equipment from the underlying foundation structure, so that the foundation mainly bears the static load, thereby significantly reducing vibration transmission. The role of damping is to stabilize the entire system quickly under dynamic disturbance interference, prevent the swing amplitude of the entire system from being too large, and thus control the foundation from generating excessive resonance amplitude during start-up and shutdown.

[0003] Magnetorheological fluids can be rapidly adjusted by an external magnetic field. Ideally, the damping coefficient of the magnetorheological fluid can be changed by controlling the magnetic field strength. However, since the effective area of ​​the magnetorheological fluid in the magnetic field is limited and the magnetic field distribution is often not concentrated enough, the response speed of the damping force is slow and it is difficult to reach a large damping value in a short time when resonance occurs. Therefore, we propose a magnetorheological damping spring isolator. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a magnetorheological damping spring isolator.

[0005] To achieve the above objectives, the present invention provides the following technical solution: comprising an upper housing and a lower housing, wherein vibration damping springs are distributed between the upper housing and the lower housing, a hydraulic cylinder is disposed at the center of the lower housing, a cavity is formed within the hydraulic cylinder, a piston is disposed within the cavity, and a gap is left between the hydraulic cylinder and the piston; further comprising...

[0006] An auxiliary port is provided inside the piston;

[0007] Iron core, which is fixedly installed inside the auxiliary port;

[0008] The excitation coil is located outside the iron core and is externally connected to a control circuit for controlling the damping magnitude of the spring isolator.

[0009] An adjustment component, located inside the cylinder, is used to improve the damping response speed.

[0010] Preferably, the adjusting component includes a support member disposed within the oil cylinder, a movable member disposed within the support member and located at the bottom end of the piston, a shaped member disposed within the support member, and a tensioning member disposed within the support member, the shaped member and the tensioning member cooperating to lift the damping fluid.

[0011] Preferably, the support member includes support bars symmetrically arranged in the cavity, a support cylinder is provided between the two support bars, the support cylinder is recessed inward to form a groove, and the support cylinder is located below the piston.

[0012] Preferably, the movable component includes a movable cylinder disposed in the slot, the bottom end of the movable cylinder is recessed upward to form a movable groove, the inner wall of the movable groove is symmetrically provided with a first contact part and a second contact part at both ends, and a movable spring is provided at the top of the inner wall of the movable groove.

[0013] Preferably, the irregular part includes an auxiliary cylinder located at the middle of the bottom of the slot, the auxiliary cylinder having a central hole, through openings on both sides of the central hole, a movable rod inside the central hole, and one end of the movable spring being located on the outer wall of the movable rod.

[0014] Preferably, the movable rod is provided with an inclined groove, and an inclined rod is movably connected in the inclined groove. The two ends of the inclined rod are respectively integrally formed with a pressing part one and a pressing part two. The pressing part one and the pressing part two cooperate with the abutting part one and the abutting part two, respectively. The two ends of the pressing part one and the pressing part two are slidably connected in the through-hole.

[0015] Preferably, the tensioning member includes a lifting plate disposed at the bottom end of the movable rod, the upper surface of the lifting plate being provided with a plurality of spherical blocks arranged in a circular pattern, and auxiliary strips being symmetrically arranged on both sides of the outer wall of the spherical blocks.

[0016] Preferably, the system further includes an auxiliary component, which includes a rotating component disposed at the bottom end of the support cylinder, an auxiliary component disposed at the bottom end of the piston, and limiting components disposed on both sides of the auxiliary component. The rotating component and the limiting components are paired with the excitation coil to limit its movement.

[0017] Preferably, the rotating component is disposed in a sleeve at the bottom end of the support cylinder, the sleeve has an opening, the opening has an arc-shaped groove, and a limit block is provided on the outer wall of the movable rod, the limit block being slidably connected in the arc-shaped groove.

[0018] Preferably, the auxiliary component includes an auxiliary plate disposed on the inner wall of the cavity, the auxiliary plate having symmetrical grooves on both sides, and compression springs disposed on the inner side of the grooves on both sides.

[0019] Preferably, the limiting member includes a limiting rod symmetrically slidably connected in the slide groove, one end of the limiting rod being connected to a compression spring, and convex plates symmetrically arranged on the outer side of the sleeve, with notches symmetrically arranged in the convex plates on both sides, and protrusions integrally formed in the notches.

[0020] Preferably, the protruding portions on both sides are in contact with the limiting rods, one end of the limiting rods is correspondingly abutted against the outside of the excitation coil, and the outer wall of the sleeve is symmetrically provided with stirring rods, which are correspondingly arranged between the two sets of auxiliary bars.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In this invention, the relative motion between the piston and the cylinder generates damping through the viscous flow of the magnetorheological fluid. An iron core is installed inside the piston, and an excitation coil is wound around the iron core. The excitation coil is connected to an external control circuit. When energized, a magnetic field is generated, and the viscosity of the magnetorheological fluid increases in the magnetic field. The magnitude of the damping of the spring isolator is changed by controlling the on and off of the external circuit.

[0023] 2. In this invention, the upper shell drives the movable cylinder to move downward, and the movable cylinder drives the first and second contact parts to move downward. Since the first and second extrusion parts cooperate with the first and second contact parts respectively, the Z-shaped structure is driven to move horizontally. Under the influence of the inclined groove, the lifting plate at the bottom of the movable rod is driven to move upward. Since there is a gap between the piston and the oil cylinder, the damping fluid enters the high magnetic field action area, thereby improving the damping response speed.

[0024] 3. In this invention, the limiting block on the movable rod is slidably connected in the arc-shaped groove. Due to the deflection of the arc-shaped groove, the sleeve is driven to rotate. This causes one end of the limiting rod on both sides to abut against the outside of the excitation coil. When the piston is displaced to a certain extent due to external impact, the limiting rod and the coil form mechanical contact, automatically limiting the displacement. At the same time, the magnetorheological fluid fully enters the magnetic field area, temporarily increasing the damping, thereby achieving the effect of protecting the circuit components.

[0025] 4. In this invention, the outer stirring rod is rotated synchronously by rotating the sleeve, thus generating a continuous microflow inside the liquid and preventing particles from accumulating locally in the liquid. In this way, once the magnetic field is applied during the start-up and shutdown phases, a stable chain structure can be quickly formed. Under impact or overload, it can also work with the mechanical limiting structure to allow the liquid to enter the magnetic field zone more fully, achieving an immediate high-damping response. Attached Figure Description

[0026] Figure 1 This invention provides a schematic diagram of the overall structure of a magnetorheological damping spring isolator.

[0027] Figure 2 This invention provides a planar schematic diagram of a magnetorheological damping spring vibration isolator;

[0028] Figure 3 This invention provides a cross-sectional schematic diagram of a magnetorheological damping spring vibration isolator;

[0029] Figure 4 This invention provides a cross-sectional schematic diagram of the cylinder of a magnetorheological damping spring vibration isolator;

[0030] Figure 5 This invention provides a top view of the cylinder of a magnetorheological damping spring vibration isolator;

[0031] Figure 6 This invention provides a cross-sectional schematic diagram of the support cylinder of a magnetorheological damping spring isolator;

[0032] Figure 7 This invention provides a cross-sectional schematic diagram of the movable rod of a magnetorheological damping spring isolator;

[0033] Figure 8 This invention provides a cross-sectional schematic diagram of the movable cylinder of a magnetorheological damping spring isolator;

[0034] Figure 9 This invention provides a schematic diagram of the tilting rod of a magnetorheological damping spring isolator;

[0035] Figure 10 A schematic diagram of a limiting component for a magnetorheological damping spring isolator is provided for this invention;

[0036] Figure 11 This invention provides a schematic diagram of the rotating component of a magnetorheological damping spring isolator;

[0037] Figure 12 This invention proposes a magnetorheological damping spring vibration isolator. Figure 5 Enlarged diagram of point A.

[0038] Figure label:

[0039] 1. Upper housing; 2. Lower housing; 3. Vibration damping spring; 4. Hydraulic cylinder; 5. Cavity; 6. Piston; 7. Iron core; 8. Auxiliary port; 9. Excitation coil; 10. Adjustment assembly; 11. Support component; 12. Moving component; 13. Irregularly shaped component; 14. Tensioning component; 20. Auxiliary assembly; 22. Rotating component; 23. Auxiliary component; 24. Limiting component; 111. Support bar; 112. Support cylinder; 113. Slot; 121. Moving cylinder; 122. Moving slot; 123. First contact part; 124. Second contact part; 125. Moving spring 131. Spring; 132. Auxiliary cylinder; 133. Center hole; 134. Through port; 135. Movable rod; 136. Inclined groove; 137. Extrusion section one; 138. Extrusion section two; 141. Lifting plate; 142. Spherical block; 143. Auxiliary strip; 221. Sleeve; 222. Opening; 223. Arc groove; 224. Limiting block; 231. Auxiliary plate; 232. Slide groove; 233. Compression spring; 241. Limiting rod; 242. Protruding plate; 243. Notch; 244. Protrusion; 245. Stirring rod. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0045] Example 1 further illustrates the magnetorheological damping spring vibration isolator proposed in this invention, comprising an upper housing 1 and a lower housing 2, with vibration isolating springs 3 fixedly installed between the upper housing 1 and the lower housing 2, and a hydraulic cylinder 4 detachably installed at the center of the lower housing 2. A cavity 5 is formed within the hydraulic cylinder 4, and a piston 6 is movably connected within the cavity 5. The device also includes…

[0046] An auxiliary port 8 is integrally formed inside the iron core 7 and piston 6, and the iron core 7 can be detachably installed inside the auxiliary port 8.

[0047] Excitation coil 9 is located outside the iron core 7 and is connected to an external control circuit to control the damping magnitude of the spring isolator.

[0048] The oil cylinder 4, hollow piston 6, iron core 7 and excitation coil 9 form a magnetorheological damper. The oil cylinder 4 is fixed at the center of the lower housing 2 and contains magnetorheological fluid, which is a mixture of silicone oil and carbonyl iron powder. The hollow piston 6 is fixed at the center of the upper housing 1 and is partially submerged in the magnetorheological fluid.

[0049] Depend on Figures 1 to 4 It is known that there is a gap between piston 6 and oil cylinder 4. The relative motion between the two is damped by the viscous flow of magnetorheological fluid. An iron core 7 is installed inside piston 6, and an excitation coil 9 is wound on the iron core 7. The excitation coil 9 is connected to an external control circuit. When energized, a magnetic field is generated. The viscosity of the magnetorheological fluid increases in the magnetic field. The magnitude of the damping of the spring isolator is changed by controlling the on and off of the external circuit.

[0050] As can be seen from the above, this device utilizes the characteristic that magnetorheological fluid has high viscosity in a magnetic field environment and low viscosity in a non-magnetic field environment to realize the change in the internal damping of the spring isolator. During the start-up and shutdown phase of the mechanical equipment, the excitation coil 9 on the iron core 7 inside the piston 6 is energized by the external circuit to generate a magnetic field, causing the magnetorheological damping spring isolator to exhibit high damping, suppressing the resonance amplitude of the vibration isolation foundation during the start-up and shutdown phases. When the mechanical equipment reaches the working speed, the power supply to the excitation coil 9 is cut off, the magnetic field disappears, the damping of the magnetorheological damping spring isolator decreases, and a stronger vibration isolation effect is achieved.

[0051] Meanwhile, this device is equipped with an adjustment component 10, located inside the cylinder 4, to improve the damping response speed. The adjustment component 10 includes a support member 11 inside the cylinder 4, a movable member 12 inside the support member 11, movably located at the bottom end of the piston 6, a shaped member 13 inside the support member 11, and a tensioning member 14 inside the support member 11. The shaped member 13 and the tensioning member 14 cooperate to lift the damping fluid, thereby allowing more magnetorheological fluid to enter the high magnetic field action zone, improving the damping response speed; and reducing the effective working volume during operation, thus reducing energy consumption.

[0052] Furthermore, this device is also equipped with an auxiliary component 20 to prevent the coil from being damaged due to excessive displacement or impact during strong impact or abnormal vibration. The auxiliary component 20 includes a rotating part 22 located at the bottom of the support cylinder 112, an auxiliary part 23 located at the bottom of the piston 6, and limiting parts 24 located on both sides of the auxiliary part 23. The rotating part 22 and the limiting parts 24 cooperate to limit the excitation coil 9.

[0053] When an external impact causes the piston 6 to displace to a certain extent, the limiting rod 241 forms mechanical contact with the coil, automatically limiting the displacement. At the same time, the magnetorheological fluid fully enters the magnetic field region, temporarily increasing the damping, thereby achieving the effect of protecting the circuit components.

[0054] Example 2

[0055] Based on Embodiment 1, the following technical features are added: The adjustment component 10 includes a support member 11 disposed in the cylinder 4, a movable member 12 disposed in the support member 11, the movable member 12 is disposed at the bottom end of the piston 6, a shaped member 13 disposed in the support member 11, and a tension member 14 disposed in the support member 11. The support member 11 includes support bars 111 symmetrically fixed in the cavity 5, and a support cylinder 112 is fixedly connected between the two support bars 111. The support cylinder 112 is recessed inward to form a slot 113. The support cylinder 112 is disposed below the piston 6. The movable member 12 includes a movable cylinder 121 disposed in the slot 113. The bottom end of the movable cylinder 121 is recessed upward to form a movable groove 122. The two ends of the inner wall of the movable groove 122 are symmetrically fixedly connected with a first contact part 123 and a second contact part 124. The top end of the inner wall of the movable groove 122 is fixedly connected with a movable spring 125.

[0056] Depend on Figures 3 to 5 It can be seen that a cylindrical structure is formed inside the cavity 5. A support cylinder 112 is fixed inside the cavity 5 between two sets of support bars 111. The upper end of the support cylinder 112 is recessed inward to form a slot 113. The slot 113 is a cylindrical structure. A movable cylinder 121 is slidably connected inside the slot 113. The bottom end of the movable cylinder 121 is recessed upward to form a movable groove 122. It can be seen that the slot 113 and the movable groove 122 are in opposite directions. The inner wall of the movable groove 122 is fixed with a first contact part 123 and a second contact part 124 at both ends. The first contact part 123 and the second contact part 124 are triangular structures. The movable spring 125 is fixed at the top of the inner wall of the movable groove 122. The movable spring 125 is a carbon spring with high strength.

[0057] The irregular part 13 includes an auxiliary cylinder 131 fixed at the middle of the bottom end of the slot 113. The auxiliary cylinder 131 has a central hole 132, and through openings 133 on both sides of the central hole 132. A movable rod 134 is movably connected inside the central hole 132. One end of a movable spring 125 is fixedly connected to the outer wall of the movable rod 134. The movable rod 134 has an inclined groove 135, and an inclined rod 136 is movably connected inside the inclined groove 135. Both ends of the inclined rod 136 are integrally formed with a pressing part 1. 37 and extrusion part 2 138, extrusion part 137 and extrusion part 2 138 respectively cooperate with contact part 1 123 and contact part 2 124, extrusion part 137 and extrusion part 2 138 are slidably connected at both ends in the through port 133, the stretching member 14 includes a lifting plate 141 fixedly connected to the bottom end of the movable rod 134, the upper end surface of the lifting plate 141 is circumferentially connected with multiple sets of spherical blocks 142, and auxiliary strips 143 are symmetrically fixedly connected to both sides of the outer wall of the spherical blocks 142;

[0058] Depend on Figures 4 to 11 It can be seen that the auxiliary cylinder 131 is fixed at the bottom of the slot 113. The auxiliary cylinder 131 is connected to the movable rod 134 through the movable spring 125. The outer wall of the movable rod 134 is provided with a slanted groove 135. The inclined rod 136 is movably connected in the slanted groove 135. The two ends of the inclined rod 136 are integrally formed with a first extrusion part 137 and a second extrusion part 138, which form a Z-shaped structure. The Z-shaped structure is slidably connected in the through-hole 133. When the movable cylinder 121 moves downward, it drives the first contact part 123 and the second contact part 124 to move downward. Since the first extrusion part 137 and the second extrusion part 138 cooperate with the first contact part 123 and the second contact part 124 respectively, the Z-shaped structure is driven to move in the horizontal direction. Under the influence of the slanted groove 135, the lifting plate 141 at the bottom of the movable rod 134 moves upward.

[0059] Working principle: When the device is subjected to abnormal impact, its upper housing 1 drives the movable cylinder 121 to move downward. The movable cylinder 121 drives the first contact part 123 and the second contact part 124 to move downward. Since the first extrusion part 137 and the second extrusion part 138 cooperate with the first contact part 123 and the second contact part 124 respectively, the Z-shaped structure is driven to move horizontally. Under the influence of the inclined groove 135, the lifting plate 141 at the bottom of the movable rod 134 is driven to move upward. Since there is a gap between the piston 6 and the oil cylinder 4, the damping fluid enters the high magnetic field action area, which improves the damping response speed. In this way, the effective working volume is reduced and energy consumption is reduced in the working state.

[0060] Example 3

[0061] Based on Embodiment 2, the following technical features are added: It also includes an auxiliary component 20, which includes a rotating component 22 disposed at the bottom end of the support cylinder 112, an auxiliary component 23 disposed at the bottom end of the piston 6, and limiting components 24 disposed on both sides of the auxiliary component 23. The rotating component 22 is rotatably connected to a sleeve 221 at the bottom end of the support cylinder 112. An opening 222 is formed in the sleeve 221, and an arc-shaped groove 223 is formed in the opening 222. A limiting block 224 is fixedly connected to the outer wall of the movable rod 134, and the limiting block 224 is correspondingly slidably connected in the arc-shaped groove 223. The auxiliary component 23 includes an auxiliary plate 231 fixed in the cavity 5. A gap is provided between the auxiliary plate 231 and the oil cylinder 4 to facilitate the entry of damping fluid into the high magnetic field area. Sliding grooves 232 are symmetrically provided on both sides of the auxiliary plate 231, and compression springs 233 are fixedly connected to the inner side of the sliding grooves 232 on both sides.

[0062] Depend on Figures 3 to 11 It can be seen that the bottom end of the support cylinder 112 is rotatably connected to the sleeve 221 through the bearing. A cylindrical opening 222 is formed inside the sleeve 221. The opening 222 is a through hole structure. An arc groove 223 is provided inside the opening 222. The limiting block 224 fixed on the outer wall of the movable rod 134 is slidably connected in the arc groove 223. As can be seen from Embodiment 2, the movable rod 134 moves in the vertical direction. Due to the deflection force of the arc groove 223, the sleeve 221 is driven to rotate.

[0063] The auxiliary plate 231 is installed on the inner wall of the cavity 5 through a micro-protrusion structure, so there is a gap between the auxiliary plate 231 and the cavity 5. When the lifting plate 141 moves upward, the damping fluid enters the high magnetic field area. Furthermore, the present invention further designs the structure of the auxiliary plate 231. The auxiliary plate 231 is symmetrically provided with a long strip groove 232, and the groove 232 is connected to a limit rod 241 by a compression spring 233. In order to ensure the stability of the sliding of the limit rod 241, the limit rod 241 is slidably connected in the groove 232 through a T-shaped structure.

[0064] The limiting component 24 includes a limiting rod 241 symmetrically slidably connected in the slide groove 232. One end of the limiting rod 241 is connected to the compression spring 233. A convex plate 242 is integrally formed symmetrically on the outer side of the sleeve 221. Notches 243 are symmetrically provided in the two convex plates 242. A protrusion 244 is integrally formed in the notch 243. The two protrusions 244 are in contact with the limiting rod 241 respectively. One end of the limiting rod 241 is correspondingly pressed against the outer side of the excitation coil 9. A stirring rod 245 is symmetrically fixedly connected to the outer wall of the sleeve 221. The stirring rod 245 is correspondingly arranged between the two sets of auxiliary bars 143.

[0065] Depend on Figures 5 to 11 It can be seen that the sleeve 221 has symmetrically integrally formed convex plates 242 on the outer side, and square notches 243 are integrally formed in the inner side of the two convex plates 242. Arc-shaped protrusions 244 are integrally formed in the inner side of the notches 243, and the two protrusions 244 abut against the limiting plate. Thus, when the sleeve 221 drives the convex plates 242 to rotate, the limiting rods 241 move in the slide groove 232 under the action of the protrusions 244. At this time, one end of the two limiting rods 241 abuts against the outer side of the excitation coil 9.

[0066] Working principle: As shown in Example 1, the movable rod 134 moves upward, and the limiting block 224 on the movable rod 134 is slidably connected in the arc groove 223. Due to the deflection of the arc groove 223, the sleeve 221 is driven to rotate. The sleeve 221 drives the convex plate 242 to rotate at the same time. Under the action of the convex part 244, the limiting rod 241 moves in the sliding groove 232. At this time, one end of the limiting rods 241 on both sides is correspondingly pressed against the outside of the excitation coil 9. Thus, when the external impact causes the piston 6 to displace to a certain extent, the limiting rod 241 forms mechanical contact with the coil, automatically limiting the displacement. At the same time, the magnetorheological fluid fully enters the magnetic field area, temporarily increasing the damping, thereby achieving the effect of protecting the circuit components.

[0067] Furthermore, as the sleeve 221 rotates, it drives multiple sets of stirring rods 245 on the outside to rotate synchronously, thus generating a continuous microflow inside the liquid, preventing particles from settling or locally aggregating in the liquid. In this way, during the start-up and shutdown phases, once the magnetic field is applied, a stable chain structure can be quickly formed. Under impact or overload, it can also work with the mechanical limiting structure to allow the liquid to enter the magnetic field zone more fully, achieving an immediate high-damping response.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A magnetorheological damping spring vibration isolator, comprising an upper housing and a lower housing, wherein vibration isolating springs are distributed between the upper housing and the lower housing, a hydraulic cylinder is disposed at the center of the lower housing, a cavity is formed within the hydraulic cylinder, a piston is disposed within the cavity, and a gap is left between the hydraulic cylinder and the piston, characterized in that, It also includes, An auxiliary port is provided inside the piston; Iron core, which is fixedly installed inside the auxiliary port; The excitation coil is located outside the iron core and is externally connected to a control circuit for controlling the damping magnitude of the spring isolator. An adjustment component, located inside the cylinder, is used to improve the damping response speed; The adjustment assembly includes a support member disposed within the cylinder, a movable member disposed within the support member and located at the bottom end of the piston, a shaped member disposed within the support member, and a tensioning member disposed within the support member. The shaped member and the tensioning member cooperate to lift the damping fluid.

2. The magnetorheological damping spring isolator according to claim 1, characterized in that, The support member includes support bars symmetrically arranged in the cavity, and a support cylinder is provided between the two sides of the support bars. The support cylinder is recessed inward to form a groove, and the support cylinder is located below the piston.

3. A magnetorheological damping spring isolator according to claim 2, characterized in that, The movable component includes a movable cylinder disposed in a slot, the bottom end of the movable cylinder being recessed upward to form a movable groove, the inner wall of the movable groove being symmetrically provided with a first contact part and a second contact part at both ends, and a movable spring being provided at the top of the inner wall of the movable groove.

4. A magnetorheological damping spring isolator according to claim 3, characterized in that, The irregular part includes an auxiliary cylinder located at the middle of the bottom of the slot, the auxiliary cylinder having a central hole, and through openings on both sides of the central hole. A movable rod is installed inside the central hole, and one end of the movable spring is installed on the outer wall of the movable rod.

5. A magnetorheological damping spring isolator according to claim 4, characterized in that, The movable rod has an inclined groove, and an inclined rod is movably connected within the inclined groove. Both ends of the inclined rod are integrally formed. It has a first extrusion part and a second extrusion part, which respectively cooperate with a first contact part and a second contact part, and the two ends of the first extrusion part and the second extrusion part are slidably connected in the opening.

6. A magnetorheological damping spring isolator according to claim 5, characterized in that, The tensioning member includes a lifting plate disposed at the bottom end of the movable rod. The upper surface of the lifting plate is circumferentially arranged with multiple sets of spherical blocks, and auxiliary strips are symmetrically arranged on both sides of the outer wall of the spherical blocks.

7. A magnetorheological damping spring isolator according to claim 6, characterized in that, It also includes an auxiliary component, which includes a rotating component disposed at the bottom end of the support cylinder, an auxiliary component disposed at the bottom end of the piston, and limiting components disposed on both sides of the auxiliary component. The rotating component and the limiting components are paired with the excitation coil to limit its movement.

8. A magnetorheological damping spring isolator according to claim 7, characterized in that, The rotating component is disposed on a sleeve at the bottom end of the support cylinder. An opening is formed inside the sleeve, and an arc-shaped groove is formed inside the opening. A limit block is provided on the outer wall of the movable rod, and the limit block is correspondingly slidably connected in the arc-shaped groove.

9. A magnetorheological damping spring isolator according to claim 8, characterized in that, The auxiliary component includes an auxiliary plate disposed on the inner wall of the cavity, with symmetrical sliding grooves on both sides of the auxiliary plate, and compression springs disposed on the inner side of the sliding grooves on both sides.

10. A magnetorheological damping spring isolator according to claim 9, characterized in that, The limiting component includes a limiting rod symmetrically slidably connected in the slide groove. One end of the limiting rod is connected to a compression spring. The outer side of the sleeve is symmetrically provided with protrusions. Notches are symmetrically provided in the protrusions on both sides. A protrusion is integrally formed in the notch.

11. A magnetorheological damping spring isolator according to claim 10, characterized in that, The protruding parts on both sides contact the limiting rods respectively, and one end of the limiting rods abuts against the outside of the excitation coil. The outer wall of the sleeve is symmetrically provided with stirring rods, which are correspondingly arranged between the two sets of auxiliary bars.

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