阅读说明：本技术 阻尼减振器 (Damping vibration absorber ) 是由 秦朝举 李英松 于 2021-08-27 设计创作，主要内容包括：本发明属于机械振动技术领域。一种阻尼减振器,包括上壳体、下壳体、支撑板、第一连接杆和第二连接杆,上壳体内设置有第一腔体,第一腔体内设置有第一永磁体；下壳体设置有第二腔体；支撑板设置在上壳体和下壳体之间,支撑板中部设置有万向球；第一连接杆第一端部与万向球连接,第一连接杆第二端部设置有耗能面板,耗能面板与第一腔体之间设置有第一磁性液体；第二连接杆的第一端部与万向球连接,第一连接杆和第二连接杆同轴设置,第二连接杆的第二端部设置有第二永磁体,第二永磁体与第二腔体之间设置有第二磁性液体。本申请能够有效的改变减振器的等效刚度系数,增大阻力系数,实现多维度的减振,大大提高了其减振的效果和效率,实用性更强。(The invention belongs to the technical field of mechanical vibration. A damping shock absorber comprises an upper shell, a lower shell, a supporting plate, a first connecting rod and a second connecting rod, wherein a first cavity is arranged in the upper shell, and a first permanent magnet is arranged in the first cavity; the lower shell is provided with a second cavity; the supporting plate is arranged between the upper shell and the lower shell, and the middle part of the supporting plate is provided with a universal ball; the first end of the first connecting rod is connected with the universal ball, the second end of the first connecting rod is provided with an energy consumption panel, and a first magnetic liquid is arranged between the energy consumption panel and the first cavity; the first end of the second connecting rod is connected with the universal ball, the first connecting rod and the second connecting rod are coaxially arranged, the second end of the second connecting rod is provided with a second permanent magnet, and second magnetic liquid is arranged between the second permanent magnet and the second cavity. This application can effectual change the equivalent stiffness coefficient of shock absorber, and the increase resistance coefficient realizes the damping of multidimension degree, has improved the effect and the efficiency of its damping greatly, and the practicality is stronger.)

1. A damped shock absorber, comprising:

the permanent magnet generator comprises an upper shell, a first magnet and a second magnet, wherein a first cavity is arranged in the upper shell, and the first permanent magnet is fixedly arranged in the first cavity;

the upper shell and the lower shell are arranged oppositely up and down;

the supporting plate is arranged between the upper shell and the lower shell, and the middle part of the supporting plate is provided with a universal ball;

the first end of the first connecting rod is connected with the universal ball, the second end of the first connecting rod is provided with an energy consumption panel, and a first magnetic liquid is arranged between the energy consumption panel and the first cavity; and

the first end of the second connecting rod is connected with the universal ball, the first connecting rod and the second connecting rod are coaxially arranged, a second permanent magnet is arranged at the second end of the second connecting rod, and second magnetic liquid is arranged between the second permanent magnet and the second cavity.

2. The damping vibration absorber according to claim 1, wherein the first cavity and the second cavity are both spherical cavities, the center of the universal ball coincides with the center of the first cavity and the center of the second cavity, the outer wall surface of the dissipative panel is a spherical structure concentrically arranged with the first cavity, and the outer wall surface of the second permanent magnet is a spherical structure concentrically arranged with the second cavity.

3. The damped shock absorber according to claim 1 or 2, wherein the length of the first connecting rod is greater than the length of the second connecting rod.

4. The damped shock absorber according to claim 3 wherein the weight of said first connecting rod and dissipative panel is less than the weight of said second connecting rod and second permanent magnet.

5. The damped shock absorber according to claim 1 wherein said second permanent magnet is radiantly charged.

6. The damping vibration absorber according to claim 5, wherein a third permanent magnet is arranged at the bottom of the lower shell, the third permanent magnet is arranged corresponding to the second connecting rod in a vertical state, and the central magnetic pole of the second permanent magnet is opposite to the magnetic pole at the upper end of the third permanent magnet.

7. The damping shock absorber according to claim 5 or 6, further comprising a control system, a detection unit and a power supply unit, wherein a plurality of electromagnets are circumferentially arranged on the support plate, the detection unit is used for detecting the position of the second permanent magnet and feeding back a detection signal to the control system, the control system controls the power supply unit to conduct the corresponding electromagnet, and the magnetic pole at the lower end of the electromagnet is the same as the magnetic pole in the circumferential direction of the second permanent magnet.

8. The damping shock absorber according to claim 1, wherein an annular seal ring is disposed between the upper housing and the lower housing, and the upper housing and the lower housing are fixed by bolts.

9. The damping vibration absorber of claim 1, wherein the magnetization direction of the first permanent magnet is axial or in the direction of the spherical normal of the first permanent magnet.

10. The damping shock absorber of claim 1, wherein the outer wall surface of the dissipative panel is uniformly provided with spherical protrusions or spherical grooves.

Technical Field

The invention belongs to the technical field of mechanical vibration, and particularly relates to a damping shock absorber.

Background

The magnetic liquid damper has the characteristics of zero dissipation, sensitivity to inertial force, simple structure and stable work, is suitable for vibration with low frequency and small amplitude, and is suitable for vibration reduction of solar sailboards of space aircrafts such as satellites and mechanical arms of space stations, vibration reduction of ground systems such as vibration isolation platforms and high-power antennas and the like. The existing vibration reduction structure has certain defects, and in the reciprocating motion process, on one hand, the energy consumption vibration reduction mode is single, hard collision is easy to occur, and then vibration reduction failure is caused. In addition, the conventional vibration damper has short reciprocating motion stroke and low vibration damping efficiency, can not further realize intellectualization and can not meet the further higher requirement on the vibration damping effect.

Disclosure of Invention

The invention aims to solve the problems and the defects, and provides a damping shock absorber which is reasonable in structural design, can effectively change the equivalent stiffness coefficient of the shock absorber, increases the resistance coefficient, realizes multi-dimensional shock absorption, greatly improves the shock absorption effect and efficiency, and is higher in practicability.

In order to realize the purpose, the adopted technical scheme is as follows:

a damped shock absorber, comprising:

the permanent magnet generator comprises an upper shell, a first magnet and a second magnet, wherein a first cavity is arranged in the upper shell, and the first permanent magnet is fixedly arranged in the first cavity;

the upper shell and the lower shell are arranged oppositely up and down;

the supporting plate is arranged between the upper shell and the lower shell, and the middle part of the supporting plate is provided with a universal ball;

the first end of the first connecting rod is connected with the universal ball, the second end of the first connecting rod is provided with an energy consumption panel, and a first magnetic liquid is arranged between the energy consumption panel and the first cavity; and

the first end of the second connecting rod is connected with the universal ball, the first connecting rod and the second connecting rod are coaxially arranged, a second permanent magnet is arranged at the second end of the second connecting rod, and second magnetic liquid is arranged between the second permanent magnet and the second cavity.

According to the damping shock absorber of the present invention, preferably, the first cavity and the second cavity are both spherical cavities, the spherical center of the universal ball coincides with the spherical center of the first cavity and the spherical center of the second cavity, the outer wall surface of the energy dissipation panel is a spherical structure concentrically arranged with the first cavity, and the outer wall surface of the second permanent magnet is a spherical structure concentrically arranged with the second cavity.

According to the damping vibration absorber of the present invention, preferably, the length of the first connecting rod is greater than the length of the second connecting rod.

According to the damping vibration absorber of the present invention, preferably, the weight of the first connecting rod and the dissipative panel is smaller than the weight of the second connecting rod and the second permanent magnet.

According to the damping vibration absorber of the present invention, preferably, the second permanent magnet is radiantly magnetized.

According to the damping vibration absorber of the present invention, preferably, a third permanent magnet is disposed at the bottom of the lower housing, the third permanent magnet is disposed corresponding to the second connecting rod in a vertical state, and a central magnetic pole of the second permanent magnet is opposite to a magnetic pole at an upper end of the third permanent magnet.

According to the damping vibration absorber of the present invention, preferably, the damping vibration absorber further includes a control system, a detection unit and a power supply unit, wherein a plurality of electromagnets are circumferentially arranged on the support plate, the detection unit is configured to detect the position of the second permanent magnet and feed back a detection signal to the control system, the control system controls the power supply unit to conduct the corresponding electromagnet, and the magnetic pole at the lower end of the electromagnet is the same as the magnetic pole in the circumferential direction of the second permanent magnet.

According to the damping vibration absorber of the present invention, preferably, an annular sealing ring is disposed between the upper housing and the lower housing, and the upper housing and the lower housing are fixed by bolts.

According to the damping vibration absorber of the present invention, preferably, the magnetizing direction of the first permanent magnet is axial or along the spherical normal direction of the first permanent magnet.

According to the damping vibration absorber of the present invention, preferably, the outer wall surface of the dissipative panel is uniformly provided with spherical protrusions or spherical grooves.

By adopting the technical scheme, the beneficial effects are as follows:

this application structural design is reasonable, can effectual change the equivalent stiffness coefficient of shock absorber, and the increase resistance coefficient realizes the damping of multidimension degree, has improved the effect and the efficiency of its damping greatly, and the practicality is stronger. According to the multi-dimensional movement control device, through the arrangement of the first cavity and the second cavity, the spherical cavity structure is designed to facilitate the multi-dimensional movement, and the flexibility of the movement is guaranteed; through the arrangement of the first connecting rod and the second connecting rod, the length and the weight of the damper are correspondingly designed, so that the energy consumption effect can be greatly improved, the sensitivity of the damper is improved, the first connecting rod and the energy consumption panel are driven to swing greatly through the small-amplitude swinging of the second permanent magnet and the second connecting rod, and the damping effect is better; this application still is provided with the third permanent magnet, and it can be rectified the straightness that hangs down of head rod and second connecting rod under no gravity or microgravity environment for it can keep at effectual initial condition when no vibration, can be more convenient for reset under the condition that the vibration ended. This application can change the equivalent rigidity coefficient of shock absorber through the setting of electro-magnet, and then control the frequency of shock absorber to reach best damping effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the invention and are not to be construed as limiting the invention to all embodiments thereof.

FIG. 1 is a schematic structural diagram of a damping shock absorber according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a support plate according to an embodiment of the invention.

Number in the figure:

the energy-saving type magnetic energy-saving device comprises an upper shell 1, a first permanent magnet 2, a first connecting rod 3, a first magnetic liquid 4, an energy-consuming panel 5, a universal ball 6, a supporting plate 7, a coil 8, an electromagnetic iron core 9, a sealing ring 10, a bolt 11, a second connecting rod 12, a second permanent magnet 13, a second magnetic liquid 14, a lower shell 15, a bolt hole 16 and a third permanent magnet 17.

Detailed Description

Illustrative aspects of embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings, in which specific embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art.

In the description of the present invention, it should be understood that the terms "first" and "second" are used to describe various elements of the invention, and are not intended to limit any order, quantity, or importance, but rather are used to distinguish one element from another.

It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.

It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.

Referring to fig. 1 and 2, the application discloses a damping shock absorber, which comprises an upper shell 1, a lower shell 15, a supporting plate 7, a first connecting rod 3 and a second connecting rod 12, wherein a first cavity is arranged in the upper shell 1, and a first permanent magnet 2 is fixedly arranged in the first cavity; a second cavity is arranged in the lower shell 15, and the upper shell and the lower shell are arranged oppositely up and down; the supporting plate 7 is arranged between the upper shell 1 and the lower shell 15, and the middle part of the supporting plate 7 is provided with a universal ball 6; a first end of the first connecting rod 3 is connected with a universal ball 6, a second end of the first connecting rod 3 is provided with an energy consumption panel 5, and a first magnetic liquid 4 is arranged between the energy consumption panel 5 and the first cavity; the first end of the second connecting rod 12 is connected with the universal ball 6, the first connecting rod 3 and the second connecting rod 12 are coaxially arranged, the second end of the second connecting rod 12 is provided with a second permanent magnet 13, and a second magnetic liquid 14 is arranged between the second permanent magnet 13 and the second cavity. When vibration occurs, the second connecting rod and the second permanent magnet swing to generate energy consumption under the action of the second magnetic liquid, and meanwhile, the first connecting rod and the energy consumption panel swing to generate energy consumption under the action of the first magnetic liquid, so that the vibration reduction effect is realized.

In order to further improve the vibration reduction effect and optimize the product structure, the first cavity and the second cavity in this embodiment are both spherical cavities, the center of the universal ball 6 coincides with the center of the first cavity and the center of the second cavity, the outer wall surface of the energy consumption panel 5 is a spherical structure concentrically arranged with the first cavity, and the outer wall surface of the second permanent magnet 13 is a spherical structure concentrically arranged with the second cavity. It can make first connecting rod and second connecting rod carry out multidimension's free motion, and then realizes multidimension's damping.

The length of this application first connecting rod 3 is greater than the length of second connecting rod 12, the weight of first connecting rod 3 and power consumption panel 5 is less than the weight of second connecting rod 12 and second permanent magnet 13. The swing damping process is carried out and is gathered, and the swing range of the first connecting rod can play better damping effect for the swing range of the second connecting rod, and can more help relying on the action of gravity to provide the power that resets.

The second permanent magnet 13 of this application is for radiating magnetization, and the bottom of casing 15 is provided with third permanent magnet 17 down, third permanent magnet 17 corresponds the setting with the second connecting rod 12 that is under vertical state, the central magnetic pole of second permanent magnet 13 with the magnetic pole of third permanent magnet 17 upper end is opposite. The design of this structure can further strengthen the power that resets of second permanent magnet, both can be applied to the damping on ground, also can be applied to in the microgravity environment for its effect is more outstanding in the microgravity environment, improves application range.

In order to further improve the damping effect, this application still is provided with control system, detecting element and power supply unit, is the circumference and has laid a plurality of electromagnets in backup pad 7, and the electromagnet in this embodiment includes coil 8 and electromagnetic core 9, and detecting element is used for detecting the position of second permanent magnet 13 to with detected signal feedback extremely control system, control system control power supply unit switches on corresponding electromagnet, the magnetic pole of the lower extreme of electromagnet with the magnetic pole of 13 circumference of second permanent magnet is the same. The magnetizing direction of the first permanent magnet 2 is axial or along the normal direction of the spherical surface of the first permanent magnet. The power supply unit includes a power supply line and a controller.

In this embodiment, an annular sealing ring 10 is disposed between the upper housing 1 and the lower housing 15, and the upper housing 1 and the lower housing 15 are connected and fixed by a bolt 11.

In order to improve the energy consumption effect, spherical protrusions or spherical grooves are uniformly distributed on the outer wall surface of the energy consumption panel 5.

Specific connections in practical applications are further described in detail: in the application, an upper shell 1 and a lower shell 15 are connected through a bolt 11 to define an inner cavity of a shock absorber, the upper end of a first connecting rod 3 is connected in a central hole of an energy consumption panel 5, the lower end of the first connecting rod is connected in a universal ball 6 hole, the upper end of a second connecting rod 12 is connected in the universal ball 6 hole, the lower end of the second connecting rod is connected in a central hole of a second permanent magnet 13, and a sealing ring 10 is arranged in a groove of the lower shell 15; the first permanent magnet 2 is arranged in a groove of the upper shell 1, the universal ball 6 is arranged in a central space of the supporting plate 7, and the electromagnetic iron core 9 is wound with the coil 8 to form electromagnets which are uniformly arranged in an edge hole of the supporting plate 7; when the shock absorber works, the electromagnets at the symmetrical positions work, and the magnetic field intensity of the electromagnets is adjusted by adjusting the current, so that the equivalent stiffness coefficient of the shock absorber is changed, and the shock absorber achieves the optimal shock absorption efficiency;

the length of the first connecting rod 3 is greater than that of the second connecting rod 12, the first connecting rod 3 and the second connecting rod 12 are coaxially installed, the upper end of the first connecting rod 3 is installed in a central hole of the energy consumption panel 5, the lower end of the first connecting rod is installed in a universal ball 6 hole, the upper end of the second connecting rod 12 is installed in the universal ball 6 hole, and the lower end of the second connecting rod is installed in a central hole of the second permanent magnet 13.

When the outside generates vibration, the second connecting rod 12 is connected with the second permanent magnet 13 to generate small-amplitude vibration, and at the moment, the first connecting rod 3 is connected with the energy consumption panel 5 to generate large displacement, so that the vibration energy can be quickly consumed; the first permanent magnet 2 and the second permanent magnet 13 both adopt spherical surfaces as friction surfaces, so that the contact area of the mass block of the shock absorber and the magnetic liquid is increased, and the energy dissipation capacity of the shock absorber is increased.

The first permanent magnet 2 is of a spherical structure, the magnetizing direction is axial or along the normal direction of the spherical surface of the permanent magnet, the second permanent magnet 13 is of a spherical structure and adopts radiation magnetizing, and the third permanent magnet is of a columnar structure and adopts axial magnetizing; the magnetic pole of the upper surface of the third permanent magnet 17 is opposite to the magnetic pole of the inner ring surface (namely the central position) of the second permanent magnet 13, and the second permanent magnet 13 and the universal ball 6 are concentrically arranged.

The first connecting rod 3 is made of resin and other non-magnetic materials with small density, and the second connecting rod 12 is made of zirconium oxide, copper and other non-magnetic materials with large density; the electromagnetic iron core 9 is made of soft magnetic materials; the upper shell 1, the energy dissipation panel 5, the universal ball 6, the support plate 7, the bolt 11 and the lower shell 15 are all made of non-magnetic materials with small density and high hardness.

The energy dissipation panel, the first connecting rod, the second permanent magnet and the second magnetic liquid in the application jointly form a vibration damper mass block, the mass block rotates by taking the universal ball as a circle center, multi-dimensional vibration damping can be achieved, the first permanent magnet and the second permanent magnet both adopt spherical surfaces as friction surfaces, the contact area of the vibration damper mass block and the magnetic liquid is increased, and the energy dissipation capacity of the vibration damper is increased. The length of first connecting rod is greater than the length of second connecting rod, and the weight of second connecting rod and second permanent magnet is greater than the weight of head rod and power consumption panel, and when the external world produced the vibration, the second permanent magnet production small-amplitude vibration was connected to the second connecting rod, and at this moment, the ball panel will produce great displacement, can consume the vibration energy fast in the head rod connection.

Electromagnets are uniformly distributed on the edge of the supporting plate along the circumferential direction, the electromagnets are independently controlled by a control system, when the shock absorber works, the electromagnets at the symmetrical positions work, and the magnetic field intensity of the electromagnets is adjusted by adjusting the current, so that the equivalent stiffness coefficient of the shock absorber is changed, and the shock absorber achieves the best shock absorption efficiency.

While the preferred embodiments for carrying out the invention have been described in detail, it should be understood that they have been presented by way of example only, and not limitation as to the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art, which modifications are within the scope of the present invention.