CN216430372U - Vibration damping assembly and working machine - Google Patents

Abstract

The utility model provides a damping subassembly and operation machinery. The damping assembly is used for damping a connection between a first machine component and a second machine component, comprising: the damping structure comprises a first damping part and a second damping part with different rigidity, and the second damping part is arranged on the first damping part; a fastening structure for connecting the vibration damping structure to the first mechanical component and the second mechanical component. The vibration damping structure is used as a main part of vibration damping and buffering and comprises a first vibration damping piece and a second vibration damping piece which are different in rigidity. When the first mechanical part to be damped vibrates in the working process, one of the first damping part and the second damping part with lower rigidity can be driven to generate deformation to absorb vibration; when the shock absorption structure is impacted continuously, the rigid one can be driven to deform. Therefore, the vibration reduction assembly has the multi-stage vibration reduction and buffering functions, and has a good vibration reduction effect and good impact resistance.

Description

Vibration damping assembly and working machine

Technical Field

The utility model relates to an operation machinery damping field especially relates to damping subassembly and operation machinery.

Background

During use of heavy work machines such as excavators, vibrations caused by engine excitation are transmitted through the platform to the fuselage, easily causing resonance of components and resulting damage. The quality of the engine damping pad plays an important role in damping the whole engine. The vibration damping effect of solid rubber vibration damping pads adopted in the industry is general, and the problem of difficult limiting caused by the adoption of a vibration damping structure with lower rigidity is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a damping subassembly and operation machinery for solve the relatively poor defect of damping piece damping effect and shock resistance who adopts among the prior art.

The utility model discloses a first aspect provides a damping subassembly for damping between first mechanical part and the second mechanical part is connected, include: the damping structure comprises a first damping piece and a second damping piece with different rigidity, wherein the second damping piece is arranged on the first damping piece; a fastening structure for connecting the vibration reduction structure to the first mechanical part and the second mechanical part.

According to the utility model provides a damping subassembly, be provided with on the first damping piece and be used for holding the first holding tank of second damping piece.

According to the utility model provides a damping subassembly still includes bearing structure, bearing structure be used for with damping structure is connected to first mechanical part.

According to the utility model provides a damping assembly, bearing structure includes the backup pad, and damping structure still includes the baffle, first damping piece with second damping piece sets up the baffle with between the backup pad.

According to the utility model provides a damping assembly, first damping piece has the first surface that faces the backup pad, first accommodation groove forms on the first surface, fastening structure passes the baffle the first damping piece the second damping piece with the backup pad.

According to the utility model provides a damping assembly, second damping piece simultaneously with the tank bottom of first holding tank with the backup pad contact, second damping piece with the cell wall of first holding tank separates, and the first surface with the backup pad separates, wherein, the rigidity of first damping piece is greater than the rigidity of second damping piece.

According to the utility model provides a damping assembly, first damping piece embeds there is the reinforcement.

According to the utility model provides a damping assembly, the first surface with the second damping piece simultaneously with the backup pad contact, the second damping piece with the cell wall contact of first holding tank just separates with the tank bottom, wherein, the rigidity of first damping piece is less than the rigidity of second damping piece and first damping piece embeds there is the reinforcement.

According to the present invention, there is provided a vibration damping assembly, wherein the first vibration damping member has a first surface facing a support portion of the first machine component, the first receiving groove is formed on the first surface, and the fastening structure passes through the connecting portion of the second machine component, the first vibration damping member, the second vibration damping member, and the support portion.

According to the utility model provides a damping assembly, damping structure includes the baffle, first damping piece with second damping piece sets up the baffle with between the supporting part.

According to the utility model provides a damping assembly, second damping piece simultaneously with the tank bottom of first holding tank with the supporting part contact, second damping piece with the cell wall of first holding tank separates, and the first surface with the supporting part separates, wherein, the rigidity of first damping piece is greater than the rigidity of second damping piece.

According to the utility model provides a damping assembly, the first surface with the second damping piece simultaneously with the supporting part contact, the second damping piece with the cell wall contact of first holding tank just separates with the tank bottom, wherein, the rigidity of first damping piece is less than the rigidity of second damping piece and first damping piece embeds there is the reinforcement.

According to the utility model provides a damping subassembly, damping structure still includes at least one dish spring, wherein, first damping piece have dorsad in the second surface of first surface, be formed with on the second surface and be used for holding the second holding tank of dish spring, fastening structure passes the dish spring.

According to the utility model provides a damping assembly, the baffle is constructed into platelike structure or bowl structure.

According to the utility model provides a damping assembly, damping assembly includes a pair of damping structure, under the damping assembly includes the bearing structure's the condition, a pair of damping structure mirror symmetry sets up on the upper and lower relative surface of backup pad; or in the case where the first mechanical part has the support portion, a pair of the vibration damping structures are provided on upper and lower opposite surfaces of the support portion in mirror symmetry.

According to the utility model provides a damping subassembly includes under bearing structure's the condition, bearing structure still includes connecting plate and strengthening rib, wherein, the backup pad is installed on the connecting plate, the strengthening rib is connected the connecting plate with the backup pad, and be equipped with the mounting hole on the connecting plate, the mounting hole be used for with the connecting plate install to first mechanical part.

A second aspect of the present invention provides a working machine comprising a first mechanical part, a second mechanical part and a vibration damping assembly as described above, wherein the vibration damping assembly is mounted between the first mechanical part and the second mechanical part.

According to the utility model provides a working machine, first mechanical part includes the engine, second mechanical part includes the engine installation support body.

The utility model provides an among the damping subassembly, the main part of damping structure as the damping buffering, it includes first damping piece and the second damping piece that rigidity is different. When the first mechanical part to be damped vibrates in the working process, one of the first damping piece and the second damping piece with lower rigidity can be driven to deform firstly, so that the vibration is absorbed; when the shock absorption structure is impacted continuously, the rigid one can be driven to deform. From this, make the utility model discloses a damping subassembly possesses the effect of multistage damping buffering to make it have better damping effect and shock resistance.

Further, the present invention provides a working machine having the above-described advantages because the working machine includes the above-described vibration damping unit.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a vibration damping assembly provided by the present invention;

fig. 2 is an exploded view of a vibration damping assembly provided by the present invention;

fig. 3 is one of the cross-sectional views of the damping assembly provided by the present invention;

fig. 4 is a second cross-sectional view of the damping assembly provided by the present invention;

fig. 5 is a third cross-sectional view of a damping assembly provided by the present invention;

fig. 6 is a fourth cross-sectional view of the damping assembly provided by the present invention;

reference numerals:

100: a vibration reduction assembly; 102: a load bearing structure; 104: a vibration reduction structure;

106: a fastening structure; 108: a first damping member; 110: a second damping member;

112: a baffle plate; 114: a support plate; 116: a first accommodating groove;

118: a disc spring; 120: a second accommodating groove; 122: a connecting plate;

124: reinforcing ribs; 126: mounting holes; 128: a bolt;

130: a gasket; 132: a locking thread block; 200: a first mechanical part;

202: a support portion.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring now to fig. 1-6, embodiments of the present invention will be described. It is to be understood that the following description is only exemplary of the present invention and is not intended to limit the present invention in any way.

Wherein, fig. 1 is a perspective view of the vibration damping assembly provided by the present invention. Fig. 2 is an exploded view of a vibration damping assembly provided by the present invention. Fig. 3 is one of the cross-sectional views of the vibration damping assembly provided by the present invention, which shows one of the embodiments of the vibration damping assembly. Fig. 4 is a second cross-sectional view of the damping assembly provided by the present invention, which illustrates another embodiment of the damping assembly. Fig. 5 is a third cross-sectional view of the damping assembly provided by the present invention, which illustrates yet another embodiment of the damping assembly. Fig. 6 is a fourth cross-sectional view of the damping assembly provided by the present invention, illustrating yet another embodiment of the damping assembly.

As shown in fig. 1-6, embodiments of the present invention provide a vibration damping assembly 100. The damping assembly 100 generally includes a damping structure 104 and a fastening structure 106.

In practice, the vibration damping assembly 100 may be used for vibration damping connection between a first mechanical component and a second mechanical component. In particular, the damping structure 104 may be connected to a first machine component of a work machine, where the first machine component may be a component to be damped, such as an engine, that is susceptible to generating vibrations. In an alternative embodiment, the damping structure 104 may be coupled to the first mechanical component via a load bearing structure 102, which will be described below; in other alternative embodiments, the damping structure 104 may also be directly connected to the first mechanical part, as will be described in more detail below in connection with the embodiments.

Further, the vibration damping structure 104 includes a first vibration damping member 108 and a second vibration damping member 110 that are different in rigidity, and the second vibration damping member 110 may be provided on the first vibration damping member 108. Additionally, the fastening structure 106 may be used to attach the vibration dampening structure 104 to a first mechanical component and a second mechanical component, which may be relatively stationary components in a work machine, such as a frame, a platform, an engine mount, and the like. In other words, the vibration damping module 100 is connected between the member to be damped and the relatively fixed member, and serves to damp and cushion the member to be damped, which is liable to generate vibration.

In the case of the damping structure 104, the first damping member 108 and the second damping member 110 may deform in the event of vibration of the first mechanical component during actual use. Specifically, when the first mechanical component to be damped vibrates during operation, the less rigid one of the first damping member 108 and the second damping member 110 may be driven to deform first, so as to absorb the vibration; as the damping structure 104 continues to be impacted, the more rigid one of the first and second damping members 108, 110 may be urged to deform. From this, make the utility model discloses a damping subassembly 100 possesses the effect of multistage damping buffering to make it have better damping effect and shock resistance.

In an alternative embodiment, for the installation manner of the first damping member 108 and the second damping member 110, a first receiving groove 116 may be provided on the first damping member 108, and the first receiving groove 116 may be used for receiving the second damping member 110, so as to provide a stable installation position for the second damping member 110.

As further shown in fig. 1-4, in an embodiment of the present invention, the damping assembly 100 may include a load bearing structure 102 as described above, which load bearing structure 102 may be used to connect the damping structure 104 to the first machine component. In particular, the vibration reduction structure 104 may include a baffle 112, while the load bearing structure 102 may include a support plate 114. For a specific arrangement of the first and second damping members 108, 110, the first and second damping members 108, 110 may be disposed between the baffle plate 112 and the support plate 114.

Further, in an alternative embodiment, the first damping member 108 may have a first surface that is a side surface facing the support plate 114. Specifically, the first receiving groove 116 as described above may be formed on the first surface, and the second damping member 110 may be received in the first receiving groove 116. In addition, the fastening structure 106 may pass through the baffle plate 112, the first damping member 108, the second damping member 110, and the support plate 114. Thereby forming a unitary structure as shown in cross-section in fig. 3 and 4.

In addition, in an alternative embodiment of the present invention, the damping structure 104 may further include at least one disc spring 118. In addition to the first and second damping members 108, 110, at least one disc spring 118 is added for damping. Since the disc spring 118 has a stiffness greater than the first and second damping members 108 and 110, the disc spring 118 can be used to perform the third stage of damping after the first and second damping members 108 and 110 perform the two-stage damping. Thus, the damping effect of the damping assembly 100 provided by the embodiment of the present invention is better. The specific structure and location of the disc spring 118 will be described in detail below.

Referring now to fig. 3 and 4, the present invention provides two different embodiments of a vibration damping assembly 100. It should be understood, however, that the illustrations in fig. 3 and 4 are merely exemplary embodiments of the present invention and are not intended to limit the present invention in any way.

As shown in fig. 3, in this embodiment, the first damping member 108 has a rigidity greater than that of the second damping member 110. That is, in this case, the stiffness magnitude is compared as: the disc spring stiffness is greater than the first damping member stiffness is greater than the second damping member stiffness.

At this time, the second damping member 110 may be disposed to simultaneously contact the groove bottom of the first receiving groove 116 and the support plate 114, thereby providing effective support to the second damping member 110. The second damping member 110 may be spaced apart from the groove wall of the first receiving groove 116 to provide a sufficient deformation space. And the first surface of the first damping member 108 may be spaced apart from the support plate 114. In the embodiment shown in fig. 3, when the component to be damped vibrates, the first stage is firstly damped by the second damping member 110, the second stage is damped by the first damping member 108, and the third stage is damped by the disc spring 118. The above-described specific process will be described in detail below with reference to examples.

In an alternative embodiment, a reinforcement member may be built into the first damping member 108 to improve the supporting and restraining functions.

As shown in fig. 4, in this embodiment, the first damping member 108 has a stiffness smaller than that of the second damping member 110. That is, in this case, the stiffness magnitude is compared as: the disc spring stiffness is greater than the second damping member stiffness is greater than the first damping member stiffness.

At this time, the first surface of the first vibration attenuating member 108 and the second vibration attenuating member 110 may be disposed to simultaneously contact the support plate 114. The second damping member 110 may contact the groove wall of the first receiving groove 116, thereby providing effective support to the second damping member 110. Meanwhile, the second vibration damping member 110 may be spaced apart from the groove bottom of the first receiving groove 116, thereby providing a sufficient deformation space. In addition, since the first vibration damping member 108 has a small rigidity, a reinforcing member may be provided in the first vibration damping member 108 to improve the supporting and restraining effects. In the embodiment shown in fig. 4, when the component to be damped vibrates, the first stage is firstly damped by the first damping member 108, the second stage is damped by the second damping member 110, and the third stage is damped by the disc spring 118. The above-described specific process will be described in detail below with reference to examples.

With further reference to fig. 5 and 6, two other different embodiments of the vibration damping assembly 100 are provided. It should be understood, however, that the illustrations in fig. 5 and 6 are merely exemplary embodiments of the present invention and are not intended to limit the present invention in any way.

In contrast to the embodiment shown in fig. 3 and 4, in the embodiment shown in fig. 5 and 6, the carrier structure 102 is not provided in the damping arrangement 100, but the damping structure 104 is connected directly to the first machine part 200.

Specifically, the first damping member 108 may have a first surface facing the supporting portion 202 of the first machine part 200, and the first receiving groove 116 as described above may be formed on the first surface. In this case, the fastening structure 106 may pass through the connecting portion of the second mechanical component, the first damper 108, the second damper 110, and the support portion 202.

It can also be seen here that the baffles 112 in the damping structure 104 can also be omitted in the above-described embodiment, except that no load-bearing structure 102 is provided in the damping assembly 100. In this way, the vibration damping assembly 100 may then be mounted directly between the support portion 202 of the first mechanical part 200 and the connection portion (not shown) of the second mechanical part. It should be understood that the baffle plate 112 may also be provided for supporting the first damping member 108 in a normal case.

For example, in the embodiment shown in fig. 5 and 6, the damping structure 104 may include a baffle 112, and the first and second damping members 108, 110 may be disposed between the baffle 112 and the support portion 202 of the first mechanical component 200.

Specifically, as shown in fig. 5, in this embodiment, similar to the embodiment shown in fig. 3, the second damping member 110 may simultaneously contact the groove bottom of the first receiving groove 116 and the support portion 202, the second damping member 110 may be spaced apart from the groove wall of the first receiving groove 116, and the first surface of the first damping member 108 may be spaced apart from the support portion 202. In this embodiment, the first damping member 108 may have a stiffness greater than that of the second damping member 110. The operation process of the embodiment shown in fig. 5 is similar to that of the embodiment shown in fig. 3, and therefore, is not described herein again.

Further, as shown in fig. 6, in this embodiment, similar to the embodiment shown in fig. 4, the first surface of the first damping member 108 and the second damping member 110 may simultaneously contact the supporting portion 202, and the second damping member 110 may contact the groove wall of the first receiving groove 116 and be spaced apart from the groove bottom. In this embodiment, the first vibration damping member 108 may have a rigidity smaller than that of the second vibration damping member 110, and the first vibration damping member 108 may have a reinforcing member built therein. The operation process of the embodiment shown in fig. 6 is similar to that of the embodiment shown in fig. 4, and therefore, is not described herein again.

As can be seen from the above description about the embodiments shown in fig. 3 to fig. 6, the damping module 100 provided by the embodiment of the present invention has a multi-stage damping function, so as to have a better damping effect and shock resistance. Moreover, each component in the damping structure 104 supports and limits each other, so that the damping assembly 100 has a better function of limiting each direction.

With continued reference to fig. 1-6, in an embodiment of the present invention, the damping structure 104 may further include at least one disc spring 118 as described above. Specifically, the first damping member 108 may have a second surface facing away from the first surface, and a second receiving groove 120 for receiving the disc spring 118 may be formed on the second surface. At this point, the securing structure 106 may be disposed through the disc spring 118. As can be seen from the above description, in addition to the first and second damping members 108 and 110, the damping module 100 is further provided with at least one disc spring 118 for damping and buffering. Since the disc spring 118 has a stiffness greater than the first and second damping members 108 and 110, the disc spring 118 can be used to perform the third stage of damping after the first and second damping members 108 and 110 perform the two-stage damping. Thus, the damping effect of the damping assembly 100 provided by the embodiment of the present invention is better.

It should be noted that, in the optional embodiment of the present invention, the number of the disc springs 118 is not limited, and the disc springs 118 may be a plurality of stacked structures on the premise of ensuring the availability of space, so as to increase the strength and rigidity.

Further, as shown in fig. 1-6, in an embodiment of the present invention, the baffle 112 may be configured as a bowl-shaped structure; in other embodiments, not shown, the baffle 112 may be constructed in a plate-like configuration due to its low impact force, thereby saving cost. It should be understood, of course, that the shape of the baffle 112 may be designed according to the actual circumstances, and the present invention is not limited to a particular embodiment.

With continued reference to fig. 1-6, in an alternative embodiment of the present invention, the vibration damping assembly 100 may further include a pair of vibration damping structures 104 as described above. Specifically, in the embodiment shown in fig. 3 and 4, where the vibration damping assembly 100 includes the load bearing structure 102, the pair of vibration damping structures 104 may be mirror symmetrically disposed on upper and lower opposing surfaces of the support plate 114. In the embodiment shown in fig. 5 and 6, in the case that the first mechanical component 200 has the supporting portion 202, the pair of vibration damping structures 104 may be arranged on the upper and lower opposite surfaces of the supporting portion 202 in mirror symmetry. It should be understood that no matter what kind of embodiment is described above, the pair of vibration reduction structures 104 can be used for bidirectional vibration reduction on the upper and lower sides by providing the pair of vibration reduction structures 104.

It should be noted that, in the alternative embodiment of the present invention, although the first damping member 108 and the second damping member 110 are shown in the illustrated embodiment, the number of damping members with different stiffness may be increased appropriately to achieve the purpose of multi-stiffness damping while ensuring the supporting strength of the damping members.

With continued reference to fig. 1-4, in an alternative embodiment of the present invention, the load bearing structure 102 may include, in addition to the support plate 114, a connecting plate 122 and a reinforcing bar 124. Specifically, the support plate 114 may be mounted on the connection plate 122, and the reinforcing ribs 124 may be connected between the connection plate 122 and the support plate 114 to improve strength. In addition, mounting holes 126 may be provided in connection plate 122, and mounting holes 126 may be used to mount connection plate 122 to the first mechanical component. In actual assembly, a fastener (not shown) may be passed through mounting hole 126 to mount connecting plate 122 to the first mechanical component.

Further, for the fastening structure 106, it may include a bolt 128, a washer 130, and a locknut block 132.

Specifically, the bolt 128 may pass through a pair of the vibration reduction structure 104, the support plate 114 (or the support portion 202), and the second mechanical component to connect these components together. A washer 130 may be interposed between the head of the bolt 128 and the baffle plate 112 of one of the vibration reduction structures 104. When installed, the anti-loosening screw block 132 may be attached to the bolt 128, and a second mechanical component may be interposed between the anti-loosening screw block 132 and the baffle 112 of the other vibration damping structure 104.

In this embodiment, the anti-loosening screw block 132 may be used for support between the baffle 112 and the second mechanical component, preventing the loose up-down play in the axial direction. Meanwhile, the pre-tightening force can be increased through the anti-loosening screw block 132, so that the pre-tightening force of the whole vibration damping structure 104 is increased, and the up-down positions of the first vibration damping part 108 and the second vibration damping part 110 are properly adjusted.

The vibration damping process of the vibration damping assembly 100 of the present invention is described below with reference to fig. 3 and 4. It should be understood that the damping process of the embodiment shown in fig. 5 and 6 is similar to that of the embodiment shown in fig. 3 and 4 and thus will not be described again.

As shown in fig. 3, in this embodiment, when the engine (i.e., the first mechanical component) vibrates and the support plate 114 moves upward by an impact, a first stage of vibration damping is performed: since the rigidity of the second vibration attenuating member 110 is the lowest, the gap is reduced by the elastic action to mitigate the impact, and the entire lower end surface of the second vibration attenuating member 110 is first pressed until the first surface of the first vibration attenuating member 108 contacts the support plate 114. The structure is in low-rigidity vibration reduction at the stage, the vibration transfer rate is low, and the vibration impact of the structure can be effectively reduced.

And a second stage: the supporting plate 114 continues to move upward by the impact, and since the second damping member 110 is softer than the first damping member 108, the top of the first damping member 108 is further compressed and deformed until the top of the disc spring 118 contacts the surface of the blocking plate 112. At this time, the rigidity of the first damping member 108 is smaller than that of the disc spring 118, and the first damping member 108 is further elastically deformed to absorb energy consumption of structural vibration. In this process, the semicircular structure of the second damping member 110 is attached to the first receiving groove 116 of the first damping member 108, so that the circumferential unstable deformation caused by the receiving groove gap can be effectively prevented. When the whole vehicle is horizontally shaken in the walking process, the limiting function is realized, and the first damping piece 108 is hard and can bear the axial supporting and limiting effect of the whole damping assembly 100.

And a third stage: the disc spring 118 has the characteristics of small deformation and large bearing capacity, and has the highest rigidity in the multi-rigidity structure group. When the supporting plate 114 moves upward, the second damping member 110 is pushed and presses the first damping member 108 to move upward, the top of the disc spring 118 is limited in displacement to deform radially to alleviate the impact, and the high rigidity makes it have a good axial limiting function.

As shown in fig. 4, in this embodiment, the engine damping process corresponds to three damping stages, similarly. The difference from the embodiment shown in fig. 3 is that, because the first vibration damping member 108 has low rigidity and insufficient supporting and limiting capabilities, an internal steel ring structure is added inside the first vibration damping member 108 as a reinforcing member for limiting. When the first damping part 108 is compressed to the bottom of the first receiving groove 116 to contact the second damping part 110 in the first stage, the steel ring structure is used for supporting and limiting, and the first damping part 108 is prevented from being damaged due to excessive internal extrusion. The other phases of the vibration are similar to the embodiment shown in fig. 3 and will not be described again.

Therefore, in the damping assembly 100 provided by the embodiment of the present invention, it has both good damping effect and each direction limiting function. Meanwhile, the structure can be improved on the original rubber pad, and the rubber pad is simple in structure, low in cost and high in practicability. And moreover, the device has a certain prestress adjusting function, and the axial position of the damping piece can be adjusted.

On the other hand, the embodiment of the utility model provides a still provides an operation machinery. The work machine may include a first machine component, a second machine component, and a vibration damping assembly 100 as described above. Specifically, the vibration attenuation module 100 may be mounted between a first mechanical component and a second mechanical component. Since the vibration damping module 100 as described above is provided in the working machine, it also has various advantages as described above.

It should be noted that the form of the working machine of the present invention is not limited to a specific form or specific forms, as long as the vibration damping module 100 of the present invention can be applied to the working machine. For example, the work machine may be an excavator, a crane, a mixer truck, or the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (19)

1. A vibration damping assembly for a vibration damping connection between a first machine component and a second machine component, comprising:

the damping structure comprises a first damping piece and a second damping piece with different rigidity, wherein the second damping piece is arranged on the first damping piece;

a fastening structure for connecting the vibration reduction structure to the first mechanical part and the second mechanical part.

2. The damping assembly of claim 1 wherein the first damping member is provided with a first receiving groove for receiving the second damping member.

3. The vibration damping assembly of claim 2 further comprising a load bearing structure for connecting the vibration damping structure to the first machine component.

4. The vibration damping assembly according to claim 3, wherein the carrier structure comprises a support plate and the vibration damping structure further comprises a baffle plate, the first and second vibration damping members being disposed between the baffle plate and the support plate.

5. The vibration damping assembly according to claim 4, wherein the first vibration damping member has a first surface facing the support plate, the first receiving groove is formed on the first surface, and the fastening structure passes through the baffle plate, the first vibration damping member, the second vibration damping member, and the support plate.

6. The vibration damping assembly of claim 5 wherein the second vibration damping member is in contact with both the groove bottom of the first receiving groove and the support plate, the second vibration damping member is spaced from the groove wall of the first receiving groove, and the first surface is spaced from the support plate, wherein the first vibration damping member has a stiffness greater than the second vibration damping member.

7. The vibration damping assembly of claim 6 wherein a reinforcing member is built into the first vibration damping member.

8. The vibration damping assembly of claim 5 wherein the first surface and the second vibration damping member are in simultaneous contact with the support plate, the second vibration damping member being in contact with the groove wall of the first receiving groove and spaced apart from the groove bottom, wherein the first vibration damping member has a stiffness less than the second vibration damping member and the first vibration damping member has a reinforcing member built therein.

9. The vibration damping assembly according to claim 2, wherein the first vibration damping member has a first surface facing a support portion of the first mechanical component, the first receiving groove is formed on the first surface, and the fastening structure passes through the connection portion of the second mechanical component, the first vibration damping member, the second vibration damping member, and the support portion.

10. The vibration damping assembly according to claim 9, wherein the vibration damping structure includes a baffle plate, and the first and second vibration damping members are disposed between the baffle plate and the support portion.

11. The vibration damping assembly of claim 9 wherein the second vibration damping member is in contact with both the groove bottom of the first receiving groove and the support portion, the second vibration damping member is spaced from the groove wall of the first receiving groove, and the first surface is spaced from the support portion, wherein the first vibration damping member has a stiffness greater than the second vibration damping member.

12. The vibration damping assembly of claim 9 wherein the first surface and the second vibration damping member are in simultaneous contact with the support portion, the second vibration damping member being in contact with a groove wall of the first receiving groove and spaced apart from a groove bottom, wherein the first vibration damping member has a stiffness less than a stiffness of the second vibration damping member and the first vibration damping member has a reinforcing member built therein.

13. Damping assembly according to claim 5 or 9, characterized in that the damping structure further comprises at least one disc spring,

the first damping piece is provided with a second surface opposite to the first surface, a second accommodating groove for accommodating the disc spring is formed in the second surface, and the fastening structure penetrates through the disc spring.

14. The vibration damping assembly of claim 4 or 10 wherein the baffle is configured as a plate-like structure or a bowl-like structure.

15. The vibration damping assembly according to any one of claims 4 to 8, comprising a pair of said vibration damping structures, wherein the pair of said vibration damping structures are provided on upper and lower opposite surfaces of the support plate in mirror symmetry.

16. The vibration damping assembly according to any one of claims 9 to 12, comprising a pair of the vibration damping structures, wherein the pair of vibration damping structures are provided on upper and lower opposite surfaces of the support portion in mirror symmetry.

17. The vibration damping assembly according to claim 15, wherein in the case where the vibration damping assembly comprises the load bearing structure, the load bearing structure further comprises a connecting plate and a reinforcing rib,

the support plate is mounted on the connecting plate, the reinforcing ribs connect the connecting plate and the support plate, and mounting holes are formed in the connecting plate and used for mounting the connecting plate to the first mechanical part.

18. A work machine, comprising a first machine component, a second machine component, and a vibration damping assembly according to any one of claims 1 to 17,

wherein the vibration reduction assembly is mounted between the first mechanical component and the second mechanical component.

19. The work machine of claim 18, wherein the first machine component comprises an engine and the second machine component comprises an engine mount block.

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