CN115681396A

CN115681396A - Shock-absorbing device

Info

Publication number: CN115681396A
Application number: CN202211185103.0A
Authority: CN
Inventors: 沈锐; 彭朝阳
Original assignee: Chinainstru and Quantumtech Hefei Co Ltd
Current assignee: Chinainstru and Quantumtech Hefei Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-02-03

Abstract

The invention discloses a damping device, comprising: the device comprises a first base and a second base, wherein the first base and the second base are oppositely arranged; the elastic piece is arranged between the first base and the second base; the magnetic damping assembly comprises a metal ring and a magnet, the metal ring is arranged on one of the first base and the second base, the magnet is arranged on the other of the first base and the second base, the magnet corresponds to the metal ring in position, and the magnetic damping assembly is configured to generate damping force for blocking the movement of the magnet when the magnet moves relative to the metal ring. According to the damping device provided by the embodiment of the invention, the elastic part can play a certain buffering role, the magnetic damping component can quickly and effectively attenuate the vibration kinetic energy to realize the damping role, the whole structure is simple, the occupied space is small, and all parts can be used in the environments of vacuum, low temperature and the like, so that the damping device has a wide application range and is convenient to popularize and apply.

Description

Shock-absorbing device

Technical Field

The invention relates to the technical field of precision instrument design, in particular to a damping device.

Background

The optical detection magnetic resonance refers to a quantum science technology developed based on a nitrogen-vacancy central structure in diamond. As one of the key directions of quantum science and technology, the method is widely applied to quantum precision measurement, and the development of application fields such as physics, material science and biology is driven, wherein the problem of shock absorption is the basis of the work of a series of precision instruments such as optical detection magnetic resonance, the structure in the related technology is generally complex, the requirements of use in low-temperature and vacuum environments cannot be met, and an improved space exists.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a damping device, which has a simple structure, occupies a small space, can be used in vacuum, low temperature and other environments, and has a wide application range.

According to the embodiment of the invention, the damping device comprises: the first base and the second base are oppositely arranged; the elastic piece is arranged between the first base and the second base; a magnetic damping assembly including a metal ring disposed on one of the first and second bases and a magnet disposed on the other of the first and second bases, the magnet corresponding in position to the metal ring, the magnetic damping assembly being configured to generate a damping force that impedes movement of the magnet when the magnet moves relative to the metal ring.

According to the damping device provided by the embodiment of the invention, the magnetic damping assembly matched with the magnet and the metal ring is adopted, when the magnet moves relative to the metal ring, induction current is generated, the induction current can block the movement of the magnet, namely, damping force for blocking the movement of the magnet is generated, so that a damping effect is realized, the vibration kinetic energy can be attenuated, the elastic part can play a certain buffering role through the combined action of the elastic part and the magnetic damping assembly, the magnetic damping assembly can quickly and effectively attenuate the vibration kinetic energy, the damping effect is realized, the overall structure is simple, the occupied space is small, all parts can be used in the environments of vacuum, low temperature and the like, the application range of the damping device is wide, and the popularization and application are convenient.

According to the damping device provided by the embodiment of the invention, the first base is provided with a first installation groove which is opened towards one side of the second base, and the magnet is suitable for being inserted into the first installation groove and fixedly connected with the first base.

In some examples, the magnet is in interference fit with a slot wall of the first mounting slot.

According to the damping device provided by the embodiment of the invention, the periphery of the second base is provided with a second mounting groove which is sunken inwards, and the metal ring is suitable for being inserted into the second mounting groove and fixedly connected with the second base.

In some examples, the metal ring is connected to the bottom wall of the second mounting groove by a fastener.

In some examples, the metal ring is provided with a fixing hole, and the fixing hole is used for connecting an external structural member.

According to the damping device provided by the embodiment of the invention, in the extending direction of the magnet, one end of the magnet, which is close to the metal ring, extends into the metal ring.

According to the damping device provided by the embodiment of the invention, the magnetic damping assembly comprises a plurality of magnets, the magnets of the magnetic damping assembly are arranged at intervals along the circumferential direction of the first base, and the magnetic poles of two adjacent magnets are arranged oppositely.

According to the damping device provided by the embodiment of the invention, the metal ring is a copper ring.

According to the damping device of the embodiment of the invention, the elastic member is a spring, and the elastic member includes a plurality of elastic members arranged at intervals along a circumferential direction.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a shock-absorbing device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a shock absorbing device according to an embodiment of the present invention at one viewing angle;

FIG. 3 is a cross-sectional view of a shock absorbing device according to an embodiment of the present invention at another perspective;

fig. 4 is an exploded view of a shock-absorbing device according to an embodiment of the present invention.

Reference numerals are as follows:

the vibration damping device 100 is provided with a vibration damping device,

a first base 10, a first installation groove 11, a third installation groove 12,

a second base 20, a second mounting groove 21, a fourth mounting groove 22,

the elastic member (30) is provided with a spring,

a magnetic damping member 40, a metal ring 41, a magnet 42, a first fixing hole 43, a second fixing hole 44,

a fastener 50.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A shock-absorbing device 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 4.

As shown in fig. 1 to 4, a shock-absorbing device 100 according to one embodiment of the present invention includes: the damper comprises a first base 10, a second base 20, an elastic member 30 and a magnetic damping assembly 40, wherein the first base 10 and the second base 20 are arranged oppositely, the elastic member 30 is arranged between the first base 10 and the second base 20, the magnetic damping assembly 40 comprises a metal ring 41 and a magnet 42, the metal ring 41 is arranged on the first base 10, the magnet 42 is arranged on the second base 20, or the metal ring 41 is arranged on the second base 20, and the magnet 42 is arranged on the first base 10, wherein the magnet 42 corresponds to the metal ring 41, when a shock is transmitted to the damping device 100, the first base 10 and the second base 20 move relatively, the elastic member 30 can be deformed, the magnet 42 and the metal ring 41 move relatively, the magnet 42 can penetrate through the metal ring 41, when the two move relatively, an induced current can be generated according to the lenz law, the effect of the induced current can always resist the cause of the induced current, and the generated induced current can block the movement of the magnet 42, and form a damping force for blocking the movement of the magnet 42.

According to the damping device 100 of the embodiment of the present invention, by using the magnetic damping assembly 40 in which the magnet 42 is matched with the metal ring 41, when the magnet 42 moves relative to the metal ring 41, an induced current is generated, and the induced current can block the movement of the magnet 42, that is, a damping force for blocking the movement of the magnet is generated, so as to realize a damping effect, thereby damping vibration kinetic energy; through the combined action of elastic component 30 and magnetic damping subassembly 40, elastic component 30 can play certain cushioning effect, and magnetic damping subassembly 40 can attenuate vibrations kinetic energy fast effectively, realizes absorbing effect, and overall structure is simple, occupation space is little, and each spare part all can use in environment such as vacuum, low temperature for damping device 100's application scope is extensive, and the facilitate promotion is used.

As shown in fig. 4, according to some embodiments of the present invention, the second base 20 is disposed above the first base 10, the upper surface of the first base 10 has a first mounting groove 11, the upper side of the first mounting groove 11 is open, the magnet 42 can be inserted into the first mounting groove 11, the magnet 42 protrudes out of the upper surface of the first mounting groove 11, so that the magnet 42 is matched with the metal ring 41 on the second base 20, wherein the magnet 42 is fixed in the first mounting groove 11, and the magnet 42 is fixedly mounted. That is to say, the first mounting groove 11 can play a role in positioning the mounting of the magnet 42, so as to facilitate the mounting and fixing of the magnet 42, and the concave design can reduce the vertical dimension of the whole damping device 100, so that the whole structure is compact.

In some examples, the magnet 42 may be directly in interference fit with a groove wall of the first mounting groove 11, thereby facilitating the mounting of the magnet 42 and improving the assembly efficiency, preferably, the first mounting groove 11 communicates with an outer edge of the first base 10, that is, an outer side of the first mounting groove 11 is also open, the magnet 42 may be inserted into the first mounting groove 11 from the outer side of the first mounting groove 11, and the first mounting groove 11 may be in a bell mouth shape, a longitudinal sectional dimension of the outer side of the first mounting groove 11 is greater than a longitudinal sectional dimension of the inner side, the longitudinal sectional dimension of the outer side is slightly greater than a thickness of the magnet 42, and the longitudinal sectional dimension of the inner side is slightly smaller than the thickness of the magnet 42, thereby facilitating the insertion of the magnet 42, ensuring the stability of the magnet 42 after being mounted in place, and further improving the convenience of the assembly of the magnet 42.

As shown in fig. 4, according to some embodiments of the present invention, the outer periphery of the second base 20 has the second mounting groove 21 recessed inwards, the metal ring 41 can be inserted into the second mounting groove 21, and the metal ring 41 is fixedly connected to the second base 20, so as to implement the mounting of the metal ring 41, that is, the second mounting groove 21 can play a role in positioning the mounting of the metal ring 41, so as to facilitate the mounting and fixing of the metal ring 41, and meanwhile, the recessed design can reduce the size of the whole damping device 100 in the horizontal direction, so that the overall structure is more compact.

Specifically, the first base 10 is located at the lower side of the second base 20, the magnet 42 is disposed on the first base 10, and at least the lower side of the second mounting groove 21 has an open mouth, thereby ensuring that the magnet 42 can be inserted into the metal ring 41 to generate an induced current; the second mounting groove 21 can be opened up and down, and the metal ring 41 is mounted in the second mounting groove 21, so that the magnet 42 can penetrate through and penetrate out of the metal ring 41, and interference and the like can be avoided when the magnet 42 is matched with the metal ring 41.

As shown in fig. 3, in some specific examples, the metal ring 41 is fixedly connected to the bottom wall of the second mounting groove 21 by a fastener 50, it can be understood that the metal ring 41 is a closed annular structure, the metal ring 41 is not limited to a circular ring, the shape of the metal ring 41 may correspond to the shape of the second mounting groove 21, the inner section of the metal ring 41 has a first fixing hole 43, the inner section abuts against the bottom wall of the second mounting groove 21, and the metal ring 41 is fixed by the fastener passing through the first fixing hole 43 and fixedly connected to the second base; the outer section of the metal ring 41 may protrude out of the second mounting groove 21, that is, the size of the second mounting groove 21 may be reduced, so that the size of the second base 20 may be reduced, and the manufacturing cost may be reduced, and two opposite side sections may be further provided between the inner section and the outer section of the metal ring 41, and the two opposite side sections of the metal ring 41 may be respectively abutted against two side walls of the second mounting groove 21, so that the stability of the metal ring 42 may be improved; of course, the metal ring 41 may be positioned in the second mounting groove 21, thereby improving the stability of the metal ring 41.

According to some embodiments of the present invention, a plurality of magnets 42 are circumferentially spaced on the first base 10, and a plurality of metal rings 41 are circumferentially spaced on the second base 20, thereby forming a plurality of magnetic damping assemblies 40, which can improve the damping effect.

Wherein, the first base 10 and the second base 20 may be both formed in a circular shape, the metal rings 41 may be substantially formed in an arc shape, the outer section of each metal ring 41 is formed in an arc shape, the inner section of each metal ring 41 is also in an arc shape, and the arc centers of the two arc structures are the center of the second base 20.

As shown in fig. 2, in some specific examples, the magnetic poles of two adjacent magnets 42 are arranged oppositely, for example, the N pole of one magnet 42 is located on the upper portion of the S pole, and the S poles of two adjacent magnets 42 are located on the upper portion of the N pole, so that the mutual influence between the adjacent magnets 42 can be counteracted, and the influence of mutual repulsion and attraction of the magnets 42 on the stability of the whole structure can be avoided.

In some examples, the metal ring 41 is provided with a second fixing hole 44, and the second fixing hole 44 may be connected to an external structural member, for example, a fastener penetrates through the second fixing hole 44 and the external structural member, it is understood that the external structural member may be supported on the second base 20, and the external structural member is fixedly connected to the metal ring 41, so that the connection stability may be improved, and the damping effect may be ensured.

According to some embodiments of the present invention, in the extending direction of the magnet 42, one end of the magnet 42 close to the metal ring 41 extends into the metal ring 41, for example, the magnet 42 extends in the vertical direction, the metal ring 41 is located on the upper portion of the magnet 42, and the upper end of the magnet 42 is higher than the lower end of the metal ring 41, so as to avoid a gap between the magnet 42 and the metal ring 41, ensure that magnetic lines of force of the magnet 42 can be cut by the metal ring to generate an induced current, and further generate a damping effect to hinder the movement of the magnet.

It can be understood that the deformation direction of the elastic element 30 is the same as the relative movement direction of the magnet 42 and the metal ring 41, and the end of the magnet 42 extends into the metal ring 41, so that the gap between the magnet 42 and the metal ring 41 when the elastic element 30 is deformed by stretching can be prevented from affecting the generation of the induced current, and further affecting the damping effect.

According to some embodiments of the present invention, the metal ring 41 is a copper ring, when the magnet 42 penetrates through the copper ring, an induced current may be generated on the metal ring 41, and a magnetic field of the induced current hinders a magnetic flux of the induced current, that is, hinders penetration of the magnet 42, and generates a damping force that hinders movement of the magnet 42, so as to achieve a damping effect, thereby damping vibration kinetic energy and achieving a shock absorption effect. Of course, the metal ring 41 may be an aluminum ring or the like so as to ensure that an induced current is generated when the magnet 42 is inserted into the metal ring 41.

According to some embodiments of the present invention, the elastic member 30 is a spring, and a plurality of elastic members 30 may be disposed between the first base 10 and the second base 20, and the plurality of elastic members 30 are disposed at equal intervals along a circumferential direction, so that uniformity of a damping effect may be improved, and meanwhile, the whole structure may be prevented from being deflected after being stressed for a long time, and stability of the whole structure may be ensured. For example, three elastic members 30 may be disposed between the first base 10 and the second base 20, so that structural stability may be ensured and an effective damping effect may be achieved. Of course, the resilient member 30 may be other resiliently deformable material members.

In some examples, the first base 10 has a third mounting groove 12 with an open top, the third mounting groove 12 is located inside the plurality of first mounting grooves 11, the elastic member 30 may be mounted in the third mounting groove 12 to achieve a fixed position of the elastic member 30, and the elastic member 30 may be fixedly connected to a bottom wall of the third mounting groove 12, thereby preventing the elastic member 30 from being removed.

Correspondingly, the second base 20 may have a fourth mounting groove 22 with an open bottom, the fourth mounting groove 22 is located inside the plurality of second mounting grooves 21, the fourth mounting groove 22 corresponds to the third mounting groove 12, the elastic member 30 may be mounted in the fourth mounting groove 22, positioning of mounting the elastic member 30 is achieved, meanwhile, the elastic member 30 is prevented from shaking obliquely, and the like, and the elastic member 30 may be fixedly connected to the bottom wall of the fourth mounting groove 22, thereby preventing the elastic member 30 from coming off.

It can be understood that a plurality of damping devices 100 may be vertically stacked, that is, the metal ring 41 may connect adjacent damping devices 100, thereby improving the damping effect, or two first bases 10 may be symmetrically disposed on both sides of the second base 20, and the elastic member 30 and the magnetic damping member 40 are symmetrically disposed between the first base 10 and the second base 20, thereby improving the damping effect.

Other constructions and operations of the shock absorbing device 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein. The vertical direction, the horizontal direction, and the front-rear direction are based on the vertical direction, the horizontal direction, and the front-rear direction of the figure.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A shock absorbing device, comprising:

the first base and the second base are oppositely arranged;

the elastic piece is arranged between the first base and the second base;

a magnetic damping assembly including a metal ring disposed on one of the first and second bases and a magnet disposed on the other of the first and second bases, the magnet corresponding in position to the metal ring, the magnetic damping assembly being configured to generate a damping force that impedes movement of the magnet when the magnet moves relative to the metal ring.

2. The damper device according to claim 1, wherein the first base has a first mounting groove opened toward one side of the second base, and the magnet is adapted to be inserted into the first mounting groove and fixedly coupled to the first base.

3. The damper device of claim 2, wherein the magnet is in an interference fit with a slot wall of the first mounting slot.

4. The shock-absorbing device as claimed in claim 1, wherein the second base has a second mounting groove recessed inwardly at an outer circumference thereof, and the metal ring is adapted to be inserted into the second mounting groove and fixedly coupled to the second base.

5. The shock absorbing device as set forth in claim 4, wherein said metal ring is connected to a bottom wall of said second mounting groove by a fastener.

6. The shock absorbing device as claimed in claim 4, wherein the metal ring is provided with a fixing hole for connecting an external structural member.

7. The damper device according to claim 1, wherein an end of the magnet near the metal ring protrudes into the metal ring in an extending direction of the magnet.

8. The damping device according to claim 1, wherein the magnetic damping assembly comprises a plurality of magnets of the magnetic damping assembly arranged at intervals along a circumferential direction of the first base, and magnetic poles of two adjacent magnets are arranged in opposite directions.

9. The shock absorbing device of claim 1, wherein the metal ring is a copper ring.

10. The damper device according to any one of claims 1 to 9, wherein the elastic member is a spring, and the elastic member includes a plurality of elastic members arranged at intervals in a circumferential direction.