Magnetostrictive driving inertia actuating device

Abstract

The embodiment of the invention discloses a magnetostrictive driving inertia actuating device, which comprises a base, a magnetostrictive driving device and a magnetostrictive driving device, wherein one side of the base is connected to an excited object; the vibration driving mechanism is connected to the base, the vibration driving mechanism comprises a magnetic field assembly and a giant magnetostrictive rod, the magnetic field assembly is used for generating an excitation magnetic field, and the giant magnetostrictive rod stretches out and draws back under the action of the excitation magnetic field; the giant magnetostrictive rod acts on the inertial vibration mechanism, the inertial vibration mechanism generates vibration under the action of the giant magnetostrictive rod, and the vibration counteracts on the base. Compared with a traditional giant magnetostrictive actuation device, the inertial actuation device has the advantages that the inertial actuation technology is combined with the magnetostrictive technology; the inertia actuation technology of magnetostriction driving is achieved, the base is directly connected with an object to be acted, and force and displacement are directly output without depending on an output rod of a traditional giant magnetostriction device.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vibration control technology, and in particular to a magnetostrictive driven inertial actuating device. Background Art

[0002] In the fields of shipbuilding, chemical industry, etc., long-term vibration of structures often causes damage to equipment, pipelines and adjacent systems. In order to increase the service life of the structure and reduce the level of structural vibration, it is necessary to control the vibration source or transmission path of the structure. The vibration source of structural vibration often comes from the operation of rotating machinery, such as pump rotating equipment in ship systems. The above vibration has obvious line spectrum characteristics. At present, when controlling the above vibration, elastic or damping materials are often added to the vibration transmission path, that is, passive vibration isolation to reduce the vibration energy of the entire frequency band, but the above vibration control method is not effective in suppressing vibrations with obvious line spectrum characteristics.

[0003] A large amount of engineering experience shows that in order to achieve the control of the structural line spectrum vibration, the dynamic vibration absorption method is generally used. However, the passive vibration absorption technology cannot be applied to the situation where the vibration frequency of the excitation device itself is unstable, and the vibration absorber needs to be configured with a large vibration absorption mass to obtain a better vibration absorption effect. It is often difficult to implement due to the adverse effects of the structural installation space and the additional mass of the structure. Therefore, an active control method based on an actuator has emerged. By controlling the actuator to apply a vibration with an amplitude equivalent to the structural characteristic vibration line spectrum and an opposite phase, the original line spectrum vibration is reduced or offset, thereby achieving the control of the structural vibration with obvious characteristic line spectrum. Therefore, the actuator is a key device for realizing active vibration control of the structure, but the common actuators (such as electromagnetic actuators) or excitation devices currently have the disadvantages of poor high-frequency output characteristics and low energy conversion rate; and the traditional magnetostrictive actuator that directly outputs displacement and force by the output rod also has the disadvantages of complex installation, requiring additional support to fix the actuator, and being easily limited by the installation space. Therefore, the above actuator has poor engineering adaptability when applied to ship power systems with complex components such as power equipment and current-carrying pipelines and small space. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, the present invention provides a magnetostrictive driven inertial actuating device, comprising: a base, one side of the base being connected to an excited object;

[0006] A vibration drive mechanism, wherein the vibration drive structure is connected to the base, the vibration drive mechanism magnetic field component and a giant magnetostrictive rod, the magnetic field component is used to generate an excitation magnetic field, and the giant magnetostrictive rod is extended and retracted under the action of the excitation magnetic field;

[0007] Inertial vibration mechanism, the giant magnetostrictive rod acts on the inertial vibration mechanism, the inertial vibration mechanism generates vibration under the action of the giant magnetostrictive rod, and the vibration reacts to the base.

[0008] In a feasible implementation, it also includes:

[0009] The outer shell, the vibration drive mechanism and the inertial vibration mechanism are both arranged inside the outer shell, and the inertial vibration mechanism applies a reaction force to the base through the outer shell.

[0010] In a feasible embodiment, the outer cover comprises:

[0011] A first sleeve, one end of which is connected to the base;

[0012] An annular partition is arranged inside the first sleeve, the annular partition divides the inside of the first sleeve into two partitions, the vibration drive mechanism is arranged in the partition close to the base, and the inertial vibration mechanism is arranged in the partition away from the base. A through hole is opened in the center of the annular partition, and the giant magnetostrictive rod acts on the inertial vibration mechanism through the through hole.

[0013] In a feasible implementation manner, the giant magnetostrictive rod is located at the center of the magnetic field assembly, the movable end of the giant magnetostrictive rod is connected to the inertial vibration mechanism, and the fixed end of the giant magnetostrictive rod is connected to the base.

[0014] In a feasible implementation manner, the inertial vibration mechanism includes:

[0015] A pre-pressing assembly, the pre-pressing assembly is connected to the outer sleeve, and the pre-pressing assembly has a pre-pressing end;

[0016] An inertial mass block, one end of which is connected to the pre-pressing end of the pre-pressing assembly, and the other end of which passes through the through hole of the annular partition plate and is connected to the giant magnetostrictive rod.

[0017] In a feasible implementation manner, the magnetic field assembly includes:

[0018] A driving coil, wherein the outer side of the driving coil is connected to the inner side of the outer jacket, and an alternating current is passed through the driving coil to induce a magnetic field, thereby forming an excitation magnetic field;

[0019] A permanent magnet is coated on the periphery of the coil and is used to provide a bias magnetic field, and the bias magnetic field is used to eliminate the frequency doubling phenomenon of the excitation and output of the driving coil.

[0020] In a feasible implementation manner, the pre-pressing component includes:

[0021] a spring, one end of which is connected to the inertial mass block;

[0022] An adjusting nut is connected to the other end of the spring and is arranged at an end of the first sleeve away from the bottom surface.

[0023] In a feasible implementation manner, the magnetic field assembly further includes:

[0024] The skeleton comprises an upper ring plate, a lower ring plate and a connecting tube, one end of the connecting tube is connected to the upper ring plate, the other end of the connecting tube is connected to the lower ring plate, the giant magnetostrictive rod is arranged inside the connecting tube, the driving coil is wound around the connecting tube, and the permanent magnet is sleeve-connected to the connecting tube and arranged outside the driving coil.

[0025] In a feasible implementation, it also includes:

[0026] The limiting member includes a first ring plate and a second sleeve, wherein the first ring plate is arranged between the annular partition and the vibration driving mechanism, one end of the second sleeve is connected to the first ring plate, and the other end of the second sleeve is sleeve-connected to the inertial vibration mechanism.

[0027] In a feasible implementation manner, the adjusting nut has an external thread, and the adjusting nut is connected to the first sleeve of the outer sleeve via the external thread. The adjusting nut is adjusted in relative position with the first sleeve by rotation, so that pre-pressure is applied to the inertial mass block via a spring.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects: during the application of the technical solution, compared with the traditional giant magnetostrictive actuating device, the present invention combines the inertial actuation technology with the magnetostrictive technology to realize the inertial actuation technology driven by magnetostriction. The reaction force provided by the inertial vibration mechanism outputs the force and displacement through the base, and is directly connected to the object being worked through the base. The force and displacement are directly output without relying on the output rod of the traditional giant magnetostrictive device, and there is no need to build an additional actuating device support structure. In actual application, the device is less restricted by installation and space, and is easier to use.

[0029] At the same time, compared with traditional electromagnetic actuating devices, the present invention mainly relies on inertial actuation to provide output, and has better high-frequency output characteristics, which solves the shortcomings of traditional electromagnetic actuating devices such as severe coil heating, low thermal energy conversion rate, weak high-frequency output, and poor actual application effect during high-frequency actuation output. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0031] Figure 1 This is a structural block diagram of a magnetostrictive driven inertial actuator according to an embodiment of the present application.

[0032] in, Figure 1 The corresponding relationship between the reference numerals and the component names is as follows:

[0033] 100, base; 200, vibration drive mechanism; 300, inertial vibration mechanism; 400, outer cover; 500, frame; 600, limiter;

[0034] 210. Magnetic field assembly; 220. Giant magnetostrictive rod;

[0035] 211, driving coil; 212, permanent magnet;

[0036] 310, pre-compression assembly; 320, inertial mass block;

[0037] 311. Spring; 312. Adjusting nut;

[0038] 410. First sleeve; 420. Annular partition. DETAILED DESCRIPTION

[0039] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0040] like Figure 1 As shown, according to an embodiment of the present application, a magnetostrictive driven inertial actuating device is provided, comprising: a base 100, one side of the base 100 is connected to an excited object; a vibration driving mechanism 200, the vibration driving structure is connected to the base 100, the vibration driving mechanism 200 has a magnetic field component 210 and a giant magnetostrictive rod 220, the magnetic field component 210 is used to generate an excitation magnetic field, and the giant magnetostrictive rod 220 is extended and retracted under the action of the excitation magnetic field; an inertial vibration mechanism 300, the giant magnetostrictive rod 220 acts on the inertial vibration mechanism 300, the inertial vibration mechanism 300 generates vibration under the action of the giant magnetostrictive rod 220, and the vibration reacts to the base 100.

[0041] The inertial actuating device provided in the embodiment of the present application includes a base 100 , a vibration driving mechanism 200 and an inertial vibration mechanism 300 .

[0042] One side of the base 100 is connected to the object to be excited.

[0043] The vibration drive mechanism 200 is connected to the other side of the base 100. The vibration drive mechanism 200 includes a magnetic field assembly 210 and a giant magnetostrictive rod 220. When the magnetic field assembly 210 is powered on, an excitation magnetic field is generated, and the giant magnetostrictive rod 220 is extended and retracted under the action of the excitation magnetic field.

[0044] Among them, the inertial vibration mechanism 300 is connected to the giant magnetostrictive rod 220. Under the action of the vibration drive mechanism 200, the inertial vibration mechanism 300 vibrates. The inertial vibration mechanism 300 reacts the vibration to the base 100, and acts on the excited object through the base 100, thereby achieving stability of the excited object.

[0045] During the application of the technical solution, compared with the traditional giant magnetostrictive actuating device, the present invention combines the inertial actuation technology with the magnetostrictive technology to realize the inertial actuation technology driven by magnetostriction. The reaction force provided by the inertial vibration mechanism 300 outputs the force and displacement through the base 100, and is directly connected to the object being worked through the base 100. The force and displacement are directly output without relying on the output rod of the traditional giant magnetostrictive device, and there is no need to build an additional actuating device support structure. In actual application, there are few restrictions on installation and space, and it is easier to use.

[0046] At the same time, compared with traditional electromagnetic actuating devices, the present invention mainly relies on inertial actuation to provide output, and has better high-frequency output characteristics, which solves the shortcomings of traditional electromagnetic actuating devices such as severe coil heating, low thermal energy conversion rate, weak high-frequency output, and poor actual application effect during high-frequency actuation output.

[0047] It is understandable that the base 100 is provided with a mounting hole, and the base 100 is connected to the excited object through the mounting hole.

[0048] like Figure 1 As shown, it also includes: a cover 400, the vibration drive mechanism 200 and the inertial vibration mechanism 300 are both arranged inside the cover 400, and the inertial vibration mechanism 300 applies the reaction force to the base 100 through the cover 400.

[0049] In this technical solution, the inertial actuating device further includes a jacket 400, the vibration driving mechanism 200 and the inertial vibration mechanism 300 are both arranged inside the jacket 400, and the inertial vibration mechanism 300 is connected to the base 100 through the jacket 400. The jacket 400 integrates the base 100, the vibration driving mechanism 200 and the inertial vibration mechanism 300 into a whole, thereby realizing the connection between the inertial vibration mechanism 300 and the base 100, and at the same time improving the stability of the inertial actuating device during operation and reducing the possibility of connection detachment between components.

[0050] like Figure 1 As shown, the outer sleeve 400 includes: a first sleeve 410, one end of which is connected to the base 100; an annular partition 420, which is arranged inside the first sleeve 410, and the annular partition 420 divides the inside of the first sleeve 410 into two partitions, the vibration drive mechanism 200 is arranged in the partition close to the base 100, and the inertial vibration mechanism 300 is arranged in the partition away from the base 100, and a through hole is opened in the center of the annular partition 420, and the giant magnetostrictive rod 220 acts on the inertial vibration mechanism 300 through the through hole.

[0051] In this technical solution, the outer sleeve 400 includes a first sleeve 410 and an annular partition 420, wherein the annular sleeve fits the outer contour of the vibration drive mechanism 200 and the inertial vibration mechanism 300, better limits the vibration drive mechanism 200 and the inertial vibration mechanism 300, limits their displacement in the non-driving direction, and makes the operation of the inertial actuator more stable.

[0052] The outer jacket 400 is made of a material with a constant magnetic permeability to ensure the magnetic field strength near the giant magnetostrictive rod 220 .

[0053] Among them, the annular partition 420 divides the first sleeve 410 into two layers, the vibration drive mechanism 200 is arranged in the partition close to the base 100, and the inertial vibration mechanism 300 is arranged in the partition away from the base 100. The annular partition 420 makes the internal layout of the outer sleeve 400 more reasonable, and also limits it to a certain extent, allowing only the driving end of the vibration drive mechanism 200 and the vibration end of the inertial vibration device to move, while avoiding shaking of other components.

[0054] like Figure 1 As shown, the giant magnetostrictive rod 220 is located at the center of the magnetic field assembly 210 , the movable end of the giant magnetostrictive rod 220 is connected to the inertial vibration mechanism 300 , and the fixed end of the giant magnetostrictive rod 220 is connected to the base 100 .

[0055] In this technical solution, the giant magnetostrictive rod 220 has a movable end and a fixed end, and the movable end is connected to the inertial vibration mechanism 300. Under the action of the excitation magnetic field generated by the magnetic field assembly 210, the giant magnetostrictive rod 220 drives the inertial vibration mechanism 300 to vibrate, and then reacts to the base 100, so that the force and displacement are output to the excited object at the base 100.

[0056] like Figure 1 As shown, the inertial vibration mechanism 300 includes: a pre-stressing component 310, the pre-stressing component 310 is connected to the outer sleeve 400, and the pre-stressing component 310 has a pre-stressing end; an inertial mass block 320, one end of the inertial mass block 320 is connected to the pre-stressing end of the pre-stressing component 310, and the other end of the inertial mass block 320 passes through the through hole of the annular partition 420 and is connected to the giant magnetostrictive rod 220.

[0057] In this technical solution, the inertial vibration mechanism 300 includes a pre-stressing component 310 and an inertial mass block 320, wherein the inertial mass block 320 is connected to the movable end of the giant magnetostrictive rod 220. When the giant magnetostrictive rod 220 is extended or retracted, the inertial mass block 320 is driven to move linearly. The inertial mass block 320 applies pressure to the pre-stressing component 310 and reacts to the base 100 through the outer sleeve 400.

[0058] like Figure 1 As shown, the magnetic field component 210 includes: a driving coil 211, the outer side of the driving coil 211 is connected to the inner side of the outer sleeve 400, and the driving coil 211 is passed with an alternating current to induce a magnetic field, thereby forming an excitation magnetic field; a permanent magnet 212, the permanent magnet 212 is coated on the outer periphery of the coil, and the permanent magnet 212 is used to provide a bias magnetic field, and the bias magnetic field is used to eliminate the frequency doubling phenomenon of the excitation and output of the driving coil 211.

[0059] In this technical solution, the magnetic field assembly 210 includes a driving coil 211 and a permanent magnet 212, wherein the outer side of the driving coil 211 is connected to the inner side of the outer jacket 400, and is connected to an external power supply through the outer jacket 400. When the driving coil 211 is energized, an excitation magnetic field is generated, thereby causing the giant magnetostrictive rod 220 to produce telescopic movement.

[0060] The permanent magnet 212 is also annular and is disposed outside the driving coil 211. The permanent magnet 212 provides a bias magnetic field to eliminate the frequency doubling phenomenon of the excitation and output of the driving coil 211 and increase the stability of the inertial actuator.

[0061] Among them, the permanent magnet 212 is made of nylon-iron-boron material with high magnetic energy product, which can greatly reduce the volume of the actuator, realize the miniaturization of the device, and facilitate the application of the actuator in a small space.

[0062] like Figure 1As shown, the preload assembly 310 includes: a spring 311, one end of which is connected to the inertial mass block 320; an adjusting nut 312, which is connected to the other end of the spring 311, and the adjusting nut 312 is arranged at one end of the first sleeve 410 away from the bottom surface.

[0063] In this technical solution, the preload assembly 310 includes a spring 311 and an adjusting nut 312. The adjusting nut 312 is threadedly connected to the side of the outer sleeve 400 away from the base 100. One end of the spring 311 is connected to the adjusting nut 312, and the other end is connected to the inertial mass block 320. When inertial actuation is performed, the giant magnetostrictive rod 220 drives the inertial mass block 320 to vibrate linearly, and the inertial mass block 320 repeatedly compresses the spring 311. The spring 311 transfers kinetic energy to the adjusting nut 312, and the adjusting nut 312 transfers the kinetic energy to the outer sleeve 400, and then the outer sleeve 400 transfers it to the base 100, thereby realizing the transmission of force and displacement to the excited object.

[0064] It is understandable that in actual applications, the weight of the inertial mass block 320, the stiffness of the spring 311, the initial compression of the adjustment nut 312, the current of the driving coil 211 of the excitation magnetic field, and the parameters of the bias magnetic field permanent magnet 212 can be determined based on the actuation output performance requirements (output frequency, force, and displacement), thereby realizing inertial actuation based on magnetostrictive drive.

[0065] like Figure 1 As shown, the magnetic field assembly 210 also includes: a skeleton 500, the skeleton 500 includes an upper ring plate, a lower ring plate and a connecting tube, one end of the connecting tube is connected to the upper ring plate, and the other end of the connecting tube is connected to the lower ring plate, the giant magnetostrictive rod 220 is arranged inside the connecting tube, the driving coil 211 is wound around the connecting tube, and the permanent magnet 212 is sleeved and connected to the connecting tube and is arranged outside the driving coil 211.

[0066] In this technical solution, the magnetic field assembly 210 also includes a skeleton 500, which is used to further limit the magnetic assembly and the giant magnetostrictive rod 220. The skeleton 500 includes a connecting tube, an upper ring plate and a lower ring plate. The upper ring plate and the lower ring plate both have circular holes at the center of the circle. One end of the connecting tube is connected to the opening of the upper ring mouth, and the other end of the connecting tube is connected to the opening of the lower ring mouth. The centers of the connecting tube, the upper ring mouth and the lower ring mouth are coaxially arranged. The giant magnetostrictive rod 220 is arranged inside the connecting tube, which ensures the centering of the entire device, thereby ensuring that there will be no offset when the entire device is output.

[0067] like Figure 1As shown, it also includes: a limit member 600, the limit member 600 includes a first ring plate and a second sleeve, the first ring plate is arranged between the annular partition 420 and the vibration drive mechanism 200, one end of the second sleeve is connected to the first ring plate, and the other end of the second sleeve is sleeved and connected to the inertial vibration mechanism 300.

[0068] In this technical solution, the limiting member 600 includes a first ring plate and a second sleeve, wherein the first ring plate and the second sleeve are used to limit the inertial vibration mechanism 300 to avoid eccentricity.

[0069] like Figure 1 As shown, the adjusting nut 312 has an external thread, and the adjusting nut 312 is connected to the first sleeve 410 of the outer sleeve 400 through the external thread. The adjusting nut 312 is rotated to adjust the relative position with the first sleeve 410, so as to apply pre-pressure to the inertial mass block 320 through the spring 311.

[0070] In this technical solution, since the tensile strength of the giant magnetostrictive rod 220 is relatively low and the compressive strength is relatively high, the adjusting nut 312, the spring 311 and the inertial mass block 320 in the present invention pre-compress the giant magnetostrictive rod 220 as a whole, and the initial compression amount of the spring 311 is achieved by adjusting the nut 312. By combining the inertial mass block 320, a suitable initial compression amount is formed for the giant magnetostrictive rod 220, so that the giant magnetostrictive rod 220 is always in a compressed state during the working process of the entire device, which ensures that the entire device can operate for a long time, and the actuator will not fail due to the giant magnetostrictive rod 220 being in a low-intensity tensile state.

[0071] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0073] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetostrictive driven inertial actuator, characterized in that: include: A base, one side of which is connected to the object to be excited; A vibration drive mechanism, wherein the vibration drive structure is connected to the base, the vibration drive mechanism magnetic field component and a giant magnetostrictive rod, the magnetic field component is used to generate an excitation magnetic field, and the giant magnetostrictive rod is extended and retracted under the action of the excitation magnetic field; The inertial vibration mechanism is connected to the base, the giant magnetostrictive rod acts on the inertial vibration mechanism, and the inertial vibration mechanism generates vibration under the action of the giant magnetostrictive rod, and the vibration reacts to the base.

2. The magnetostrictive driven inertial actuator according to claim 1, characterized in that: Also includes: The outer shell, the vibration drive mechanism and the inertial vibration mechanism are both arranged inside the outer shell, and the inertial vibration mechanism applies a reaction force to the base through the outer shell.

3. The magnetostrictive driven inertial actuator according to claim 2, characterized in that: The outer jacket comprises: A first sleeve, one end of which is connected to the base; An annular partition is arranged inside the first sleeve, the annular partition divides the inside of the first sleeve into two partitions, the vibration drive mechanism is arranged in the partition close to the base, and the inertial vibration mechanism is arranged in the partition away from the base. A through hole is opened in the center of the annular partition, and the giant magnetostrictive rod acts on the inertial vibration mechanism through the through hole.

4. The magnetostrictive driven inertial actuator according to claim 1, characterized in that: The giant magnetostrictive rod is located at the center of the magnetic field assembly, the movable end of the giant magnetostrictive rod is connected to the inertial vibration mechanism, and the fixed end of the giant magnetostrictive rod is connected to the base.

5. The magnetostrictive driven inertial actuator according to claim 3, characterized in that: The inertial vibration mechanism comprises: A pre-pressing assembly, the pre-pressing assembly is connected to the outer sleeve, and the pre-pressing assembly has a pre-pressing end; An inertial mass block, one end of which is connected to the pre-pressing end of the pre-pressing assembly, and the other end of which passes through the through hole of the annular partition plate and is connected to the giant magnetostrictive rod.

6. The magnetostrictive driven inertial actuator according to claim 1, characterized in that: The magnetic field assembly comprises: A driving coil, wherein the outer side of the driving coil is connected to the inner side of the outer jacket, and an alternating current is passed through the driving coil to induce a magnetic field, thereby forming an excitation magnetic field; A permanent magnet is coated on the periphery of the coil and is used to provide a bias magnetic field, and the bias magnetic field is used to eliminate the frequency doubling phenomenon of the excitation and output of the driving coil.

7. The magnetostrictive driven inertial actuator according to claim 5, characterized in that: The pre-pressing assembly comprises: a spring, one end of which is connected to the inertial mass block; An adjusting nut is connected to the other end of the spring and is arranged at an end of the first sleeve away from the bottom surface.

8. The magnetostrictive driven inertial actuator according to claim 6, characterized in that: The magnetic field assembly also includes: The skeleton comprises an upper ring plate, a lower ring plate and a connecting tube, one end of the connecting tube is connected to the upper ring plate, the other end of the connecting tube is connected to the lower ring plate, the giant magnetostrictive rod is arranged inside the connecting tube, the driving coil is wound around the connecting tube, and the permanent magnet is sleeve-connected to the connecting tube and arranged outside the driving coil.

9. The magnetostrictive driven inertial actuator according to claim 3, characterized in that: Also includes: The limiting member includes a first ring plate and a second sleeve, wherein the first ring plate is arranged between the annular partition and the vibration driving mechanism, one end of the second sleeve is connected to the first ring plate, and the other end of the second sleeve is sleeve-connected to the inertial vibration mechanism.

10. The magnetostrictive driven inertial actuator according to claim 7, characterized in that: The adjusting nut has an external thread, and the adjusting nut is connected to the first sleeve of the outer sleeve through the external thread. The adjusting nut is rotated to adjust the relative position with the first sleeve, so as to apply pre-pressure to the inertial mass block through the spring.

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