CN214499720U

CN214499720U - Vibration-damping nut

Info

Publication number: CN214499720U
Application number: CN202120545728.8U
Authority: CN
Inventors: 岳志强
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-26
Anticipated expiration: 2031-03-16

Abstract

The application discloses damping nut, damping nut includes: the nut comprises a nut body, a nut body and a nut, wherein the nut body is provided with a nut hole and a vibration reduction hole, and the vibration reduction hole is spaced from the nut hole; and the shock absorber is arranged in the shock absorbing hole. According to the vibration reduction nut provided by the embodiment of the application, the vibration absorber is integrated in the nut body, so that the connection and fixation among the parts can be realized, and when the parts vibrate, the vibration energy can be effectively absorbed, the problem that the vibration reduction nut is loosened in use is avoided, and the use reliability and stability of the vibration reduction nut are improved.

Description

Vibration-damping nut

Technical Field

The application relates to the technical field of connecting workpiece manufacturing, in particular to a damping nut.

Background

With the continuous maturity of automobile technology, vehicle riding comfort becomes the key point of competition of various vehicle enterprises, the NVH performance is one of the main performances of the vehicle riding comfort, the main excitation source of the vehicle NVH performance is an engine, a transmission, tires, a transmission system and the like, and excitation energy is transmitted to a vehicle body through a structural vibration transmission path, so that the problem of vibration noise in the vehicle is caused by vehicle body resonance. The bolt and nut structure is a main connecting part for connecting vehicle parts and systems, but the bolt and nut structure in the prior art only can play a role in connection, is low in practicability, and has an improved space due to the fact that the problem of looseness easily occurs after vibration energy excitation.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, an object of the present application is to provide a damping nut, which not only can realize connection between components, but also can play a role in damping vibration energy at a connection component, and is beneficial to improving the fastening stability of the damping nut.

According to the embodiment of the application, the damping nut comprises: the nut comprises a nut body, a nut body and a nut, wherein the nut body is provided with a nut hole and a vibration reduction hole, and the vibration reduction hole is spaced from the nut hole; and the shock absorber is arranged in the shock absorbing hole.

According to the vibration reduction nut provided by the embodiment of the application, the vibration absorber is integrated in the nut body, so that the connection and fixation among the parts can be realized, and when the parts vibrate, the vibration energy can be effectively absorbed, the problem that the vibration reduction nut is loosened in use is avoided, and the use reliability and stability of the vibration reduction nut are improved.

According to some embodiments of the subject application, the vibration damper includes a damping rubber vulcanized in the damping hole and a mass disposed within the damping rubber.

According to some embodiments of the present application, the damping hole is configured as a triangular hole, and the mass block is located at a middle position of the damping hole.

According to some embodiments of the subject application, the vibration reduction hole is a plurality of vibration reduction holes, and the plurality of vibration reduction holes are distributed around the nut hole.

According to the vibration reduction nut of some embodiments of the present application, the plurality of vibration reduction holes are provided evenly spaced in a circumferential direction of the nut hole.

According to the damping nut of some embodiments of the present application, the corresponding mass blocks in the plurality of damping holes have the same specification.

According to the damping nut of some embodiments of the present application, specifications of the mass blocks corresponding to a plurality of the damping holes are different; or the specifications of at least two of the mass blocks corresponding to the vibration damping holes are different.

According to some embodiments of the present application, the nut body is configured as a polygonal nut, and the plurality of damping holes are respectively located at intermediate positions of a plurality of sides of the nut body.

According to the vibration reduction nut of some embodiments of the present application, the mass block is configured in a columnar shape, and both ends of the mass block extend to end faces of the vibration reduction rubber, respectively.

According to some embodiments of the damping nut of the present application, the damping hole is configured as a through hole extending in a thickness direction of the nut body.

Additional aspects and advantages of the present application 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 present application.

Drawings

The above and/or additional aspects and advantages of the present application 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 structural view of a damping nut according to an embodiment of the present application;

fig. 2 is a schematic structural view (another perspective) of a damping nut according to an embodiment of the present application.

Reference numerals:

the vibration reduction nut (100) is provided with,

the nut comprises a nut body 1, a nut hole 11, a vibration absorber 12, vibration absorbing rubber 121 and a mass block 122.

Detailed Description

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

The following describes, with reference to fig. 1 to fig. 2, a damping nut 100 according to an embodiment of the present application, where the damping nut 100 not only can play a role in fixing and connecting two components, but also can play a role in absorbing vibration energy during the connection process, so as to reduce energy transmission, so that when the damping nut 100 is applied to the component connection of a vehicle, it can well reduce the transmission of excitation source to the whole vehicle vibration noise, and ensure the stability of the connection.

As shown in fig. 1 and 2, a vibration reduction nut 100 according to an embodiment of the present application includes: a nut body 1 and a damper 12.

As shown in fig. 1 and 2, the nut body 1 is provided with a nut hole 11, the nut hole 11 is used for avoiding a connecting piece, and when the nut body 1 is used for connecting two components, the nut body 1 can be mounted on the side surface of the component, and the connecting piece penetrates through the nut body 1 and the component, thereby playing a role of fastening the component, and the connecting piece can be a screw rod used in cooperation with the nut body 1.

As shown in fig. 1, the nut body 1 has a vibration reduction hole spaced apart from the nut hole 11, wherein, as shown in fig. 2, the nut hole 11 is located at a central position of the nut body 1, and the nut hole 11 penetrates in a thickness direction of the nut body 1, and the vibration reduction hole is located radially outward of the nut hole 11 to be spaced apart from the nut hole 11.

The damper 12 is installed in the damper hole, wherein the damper 12 is fixedly connected to the inner peripheral wall of the damper hole, so that the damper 12 is stably installed in the nut body 1 and is formed as an integral structure with the nut body 1.

Like this, install the shock absorber 12 integration in the damping hole of nut body 1, not only reduced the whole weight of damping nut 100 through setting up the damping hole, and through setting up shock absorber 12, do benefit to the damping performance of shock absorber 12, greatly promoted the damping performance of damping nut 100. Thus, after the two components are connected, the damping nut 100 can maintain the two components in a stable connection state, and can effectively absorb vibration energy when the components vibrate, so that the damping nut 100 is prevented from loosening under the action of vibration excitation when the components vibrate, and the practicability of the damping nut 100 is improved.

According to the vibration reduction nut 100 of the embodiment of the application, the vibration reducer 12 is integrated in the nut body 1, so that the connection and fixation between the parts can be realized, and when the parts vibrate, the vibration energy can be effectively absorbed, thereby avoiding the problem that the vibration reduction nut 100 is loosened in use and improving the reliability and stability of the vibration reduction nut 100 in use.

In some embodiments, as shown in fig. 1 and fig. 2, the damper 12 includes a damping rubber 121 and a mass block 122, the damping rubber 121 is made of an elastic material and can elastically deform, the damping rubber 121 is vulcanized in the damping hole, the mass block 122 is disposed in the damping rubber 121, and when the damping rubber 121 is vulcanized in the damping hole, the damping rubber 121 can fill the damping hole, so that the damping hole is filled with the damping hole, and the structural strength of the nut body 1 is ensured.

That is to say, through set up the damping hole in nut body 1, and in downthehole vulcanization damping rubber 121 structure, utilize the high damping characteristic of rubber to attenuate nut vibration, reduce the vibration energy transmission, absorb the vibration excitation simultaneously, avoid damping nut 100 to appear not hard up reliability risk in long-term use. And the mass block 122 structure is designed in the vibration reduction rubber 121, the vibration reduction rubber 121 and the mass block 122 form a vibration absorber structure, so that the vibration energy attenuation of specific frequency can be further improved, meanwhile, the size of the mass block 122 can be adjusted according to the required frequency, different frequency vibration absorber structures are manufactured according to problems, the vibration energy transmission is reduced, the vibration excitation is absorbed, and the reliability risk of looseness of the nut in long-term use is avoided.

In some embodiments, as shown in fig. 1 and 2, the damping holes are configured as triangular holes. From this, the structural strength of nut body 1 is ensured to the triangle-shaped stability characteristics in usable damping hole, does benefit to the weight that reduces nut body 1 simultaneously. And the mass block 122 is located at the middle position of the vibration reduction hole, so that the mass block 122 can absorb the vibration energy on the nut body 1 to the maximum extent, the vibration absorption at each position and in each direction in the vibration reduction rubber 121 is ensured to be more balanced, and the vibration absorption performance of the vibration reduction nut 100 is improved.

In some embodiments, the damping holes are multiple, and the multiple damping holes are distributed around the nut hole 11, that is, the damping holes are simultaneously disposed at multiple positions of the damping nut 100, so that the dampers 12 can be respectively installed in the multiple damping holes, which is favorable for improving the vibration absorbing performance of the damping nut 100.

As shown in fig. 1 and 2, the number of the damping holes is 6, and the 6 damping holes are distributed at intervals in the circumferential direction of the nut body 1, so that the damping and energy absorbing functions can be achieved at a plurality of positions in the circumferential direction of the damping nut 100, and the damping nut 100 can be guaranteed to have good damping and connecting functions when connecting components in different motion states.

In some embodiments, a plurality of damping holes are provided evenly spaced apart in the circumferential direction of the nut hole 11. That is to say, the intervals of the plurality of vibration reduction holes in the circumferential direction of the nut hole 11 are relatively uniform, as shown in fig. 1 and fig. 2, the number of the vibration reduction holes is 6, and the circumferential included angle between any two adjacent vibration reduction holes in the 6 vibration reduction holes is 60 °, so that the vibration reduction performance of the plurality of vibration reducers 12 in the circumferential direction of the nut body 1 is relatively uniform, so that when the component is subjected to force transmission in different directions, vibration energy can be effectively absorbed, and the rationality of the structural design is improved.

In some embodiments, the corresponding masses 122 within the plurality of damping holes are the same gauge. Thus, the nut body 1 can absorb the same vibration frequency at a plurality of positions in the circumferential direction through the nut, thereby being beneficial to improving the overall energy absorption effect of the vibration reduction nut 100. For example, the plurality of masses 122 are each configured as a cylinder, a triangular prism, or a quadrangular prism.

In some embodiments, the sizes of the mass blocks 122 corresponding to the damping holes are different, that is, the weights may be configured in different sizes or different shapes, for example, six mass blocks 122 are provided, and the weights of the six mass blocks 122 are sequentially increased, or six weight blocks are provided, and the six mass blocks 122 are respectively designed in different shapes, or the weights and the shapes of the six mass blocks 122 are different.

Or at least two of the mass blocks 122 corresponding to the plurality of vibration damping holes have different specifications, for example, a part of the plurality of mass blocks 122 may be configured as a circular column structure, and another part thereof may be configured as a quadrangular prism structure, or a part of the plurality of mass blocks 122 may be configured as a gram in weight, and another part thereof may be configured as b gram in weight, and a is not equal to b.

The mass 122 may be configured as a circular column, and the mass 122 configured as a circular column may be two or three, and the diameters of the two or three masses 122 are all different, or the mass 122 may be configured as a quadrangular prism, and the sectional sizes of the plurality of masses 122 are different. This makes it possible to make the weights of the different masses 122 different and to make the frequencies of the vibrations that can be absorbed different.

Specifically, as shown in fig. 1 and 2, the mass blocks 122 are six, and three of the six mass blocks 122 are configured in a cylindrical shape, and the diameters of the three cylindrical mass blocks 122 are different, while the other three mass blocks 122 are configured in a quadrangular prism shape, and the sectional shapes of the three quadrangular prisms are different.

That is to say, in the damping nut 100 of the present application, the size and shape of the mass block 122 can be adjusted according to the required frequency, and different frequency vibration absorber structures are manufactured according to the problem, so that the vibration energy transfer is reduced, and simultaneously the vibration excitation is absorbed, thereby avoiding the risk of the nut loosening and reliability in long-term use.

In some embodiments, as shown in fig. 1 and 2, the nut body 1 is configured as a polygonal nut, and the plurality of vibration-damping holes are respectively located at the middle positions of the plurality of sides of the nut body 1, so that the plurality of masses 122 are balanced in weight at the circumferential position of the nut, thereby maximizing the vibration energy absorption.

In some embodiments, the mass 122 is configured to be a column, and two ends of the mass 122 respectively extend to the end faces of the vibration damping rubber 121, that is, the axial length of the mass 122 is the same as the thickness of the vibration damping rubber 121, thereby facilitating to improve the vibration absorption performance of the vibration damping nut 100.

In some embodiments, the damping hole is configured as a through hole extending in the thickness direction of the nut body 1, and the damping rubber 121 may be vulcanization molded from any side of the damping hole, so as to reduce the molding difficulty and facilitate the installation of the mass block 122. Of course, the damping hole may be configured as a blind hole with one side open, which is beneficial to ensure the structural strength of the nut body 1.

In the description of the present application, it is to be understood that the terms "center," "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 present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present application, "a plurality" means two or more.

In the description of the present application, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact not directly but via another feature therebetween.

In the description of the present application, the first feature being "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 application. 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 present application 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 application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration reducing nut (100) comprising:

the nut comprises a nut body (1), wherein the nut body (1) is provided with a nut hole (11), and the nut body (1) is provided with a vibration reduction hole which is spaced from the nut hole (11);

a damper (12), the damper (12) being mounted within the damping hole.

2. The vibration damping nut (100) according to claim 1, characterized in that the vibration damper (12) comprises a vibration damping rubber (121) and a mass (122), the vibration damping rubber (121) being vulcanized in the vibration damping hole, and the mass (122) being provided in the vibration damping rubber (121).

3. The vibration reduction nut (100) according to claim 2, characterized in that the vibration reduction hole is configured as a triangular hole, the mass (122) being located at a middle position of the vibration reduction hole.

4. The vibration reduction nut (100) according to claim 2, characterized in that the vibration reduction hole is plural and the plural vibration reduction holes are distributed around the nut hole (11).

5. The vibration reduction nut (100) according to claim 4, characterized in that a plurality of the vibration reduction holes are provided evenly spaced in a circumferential direction of the nut hole (11).

6. The damping nut (100) of claim 4, wherein corresponding masses (122) within a plurality of the damping holes are of the same gauge.

7. The vibration reduction nut (100) according to claim 4,

the specifications of the mass blocks (122) corresponding to the vibration damping holes are different;

or the specifications of at least two of the mass blocks (122) in the corresponding mass blocks (122) in the vibration damping holes are different.

8. The vibration reduction nut (100) according to claim 4, characterized in that the nut body (1) is configured as a polygonal nut, and the vibration reduction holes are respectively located at intermediate positions of the sides of the nut body (1).

9. The vibration damping nut (100) according to claim 2, characterized in that the mass (122) is configured as a cylinder, and both ends of the mass (122) extend to end faces of the vibration damping rubber (121), respectively.

10. The vibration reduction nut (100) according to claim 1, characterized in that the vibration reduction hole is configured as a through hole extending in a thickness direction of the nut body (1).