CN220600346U - Vibration damper, suspension support assembly and engineering machinery - Google Patents
Vibration damper, suspension support assembly and engineering machinery Download PDFInfo
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- CN220600346U CN220600346U CN202322286225.5U CN202322286225U CN220600346U CN 220600346 U CN220600346 U CN 220600346U CN 202322286225 U CN202322286225 U CN 202322286225U CN 220600346 U CN220600346 U CN 220600346U
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- 239000000725 suspension Substances 0.000 title claims abstract description 31
- 238000013016 damping Methods 0.000 claims description 223
- 238000009434 installation Methods 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model relates to a vibration damper, which aims to solve the problem that vibration caused by an excitation source on a frame of an engineering machine is transmitted to a cab, and constructs the vibration damper, a suspension support assembly and the engineering machine. The vibration damper has an acoustic black hole structure, can absorb the passing bending wave, damps the vibration on engineering machinery, damps the transmission of the vibration to the inside of the cab, and remarkably improves the vibration comfort of the cab.
Description
Technical Field
The present utility model relates to a vibration damping device, and more particularly, to a vibration damping device, a suspension mount assembly, and an engineering machine.
Background
The suspension support assemblies of the cab or the power assembly of the existing engineering machinery such as a loader, a grader, a road roller and the like consist of supports welded on a frame, rubber vibration reduction pads, gaskets and mounting bolts; the rubber vibration-damping pad is of two pieces, and is respectively arranged on the upper part and the lower part of the mounting surface of the support, and the mounting bolts penetrate through the mounting holes of the lower vibration-damping pad to fix the pad and the vibration-damping pad under the cab. The four suspension support assemblies and the cab jointly form a cab suspension system, the system has a certain natural frequency, and according to vibration isolation theory and engineering practice, the vibration isolation effect of the suspension system is better when the excitation frequency is more than 2.5 times of the natural frequency of the system. For engineering machinery such as a loader and the like, because the working condition is severe and the large impact condition occurs, the rigidity of the cab suspension system cannot be too low, namely the natural frequency of the cab suspension system is high, in addition, the idling speed of an engine is generally set to be about 750rpm for reducing the oil consumption, the ratio of the excitation frequency to the natural frequency is smaller than 2.5, the suspension system cannot completely attenuate the vibration caused by the excitation sources such as the engine, the hydraulic pump, the gearbox and the like, and a lot of vibration, particularly the vibration below 200Hz, is transmitted into the cab through the suspension, so that the operation comfort experience of the cab is deteriorated.
Disclosure of Invention
The utility model aims to solve the technical problem that vibration caused by an excitation source on a frame of engineering machinery is transmitted to a cab, and provides a vibration damper, a suspension support assembly and engineering machinery, which are used for damping the vibration transmitted to the cab and improving the operation comfort of the cab.
The technical scheme for achieving the purpose of the utility model is as follows: the vibration damping device comprises a vibration damping plate and two vibration damping plates with the same structure, wherein the vibration damping plate comprises an installation part and a vibration damping part which are integrally connected, the installation part is a long strip block body with the length direction being Y-direction, the vibration damping part extends from the installation part along the X direction to form, and the thickness h (X) of each point of the vibration damping part in the Z direction is as follows:
wherein: l is the length of the vibration damping portion in the X direction; t is the thickness of the vibration damping part in the Z direction at the extension starting point; h is a 1 A thickness of the vibration damping portion in the Z direction at the extension end point; h (X) is the thickness of the vibration damping portion in the Z direction at a position where the X direction extends by the X length; m is more than or equal to 2; the X direction, the Y direction and the Z direction are mutually perpendicular directions in space;
the vibration damping plates are flat plates, are arranged between the two vibration damping plates in parallel to the XY plane, and are provided with grooves at the edges for the extending terminals of the vibration damping parts to be embedded and connected.
In the utility model, the vibration damping part has an acoustic black hole vibration damping effect, and the propagation speed in the vibration damping part is gradually reduced by utilizing the gradient change of the geometric parameters of the thin-wall structure, so that the wave speed is reduced to be free from reflection phenomenon. When the bending incident wave is transmitted to the vibration attenuation part from the mounting part, the wave speed of the bending wave is gradually reduced due to the gradual reduction of the thickness of the vibration attenuation part, the wave length is compressed, and the fluctuation amplitude is gradually increased; when the thickness gradually decreases to zero, the accumulated phase will reach infinity when the bending wave propagates close to the black hole wedge edge, and in theory the bending wave will not reach the edge of the structure and thus cannot reflect back from the edge, thereby playing the role of vibration reduction. The thickness of the extension end point of the vibration damping portion cannot be zero, but is connected to a vibration damping plate made of a vibration damping material, and vibration is transmitted to the vibration damping plate, and vibration energy is converted into heat energy to consume damping.
In the vibration damping device of the present utility model, the thickness at the starting point of extension of the vibration damping portion is equal to the thickness of the mounting portion, and one of the sides of the vibration damping portion facing the Z direction is a plane.
In the vibration damper of the present utility model, T has a value of 8 mm and h 1 The value is 0.5 mm, and the value of L is 43 mm; the length of the vibration damping portion in the Y direction is 50±10 mm.
The technical scheme for achieving the purpose of the utility model is as follows: the vibration damping device is provided with an installation part and a vibration damping part which are integrally connected, wherein the installation part is in a flat plate shape, and the vibration damping part extends from the edge of the installation part along the normal direction of the installation part in a cylindrical axial direction; the thickness h (x) of each point of the vibration damping portion in the axial direction is:
wherein: l is the length of the vibration damping portion in the axial direction; t is the thickness of the vibration damping part at the extension starting point; h is a 1 The thickness of the vibration damping part at the extension terminal point; h (x) is the thickness of the vibration damping portion at a position where the vibration damping portion extends by the length x in the axial direction; m is more than or equal to 2.
The vibration damping portion has a vibration damping attachment layer on a side surface thereof.
In the vibration damping device according to the present utility model, the vibration damping portion has a cylindrical structure with a cylindrical outer surface, and the vibration damping adhesive layer is provided on the inner surface of the vibration damping portion.
In the vibration damping device of the present utility model, T in the vibration damping portion has a value of 10 mm, h 1 The value is 1 mm, and the value of L is 27 mm.
The technical scheme for achieving the purpose of the utility model is as follows: the suspension support assembly comprises a lower rubber vibration damping pad and an upper rubber vibration damping pad which are arranged on the upper side and the lower side of a bearing plate of the support, and further comprises two second vibration damping devices, wherein the second vibration damping devices are the vibration damping devices, vibration damping parts of the second vibration damping devices extend from the edges of the mounting parts in a cylindrical axial direction along the normal direction of the mounting parts, the two mounting parts of the second vibration damping devices are respectively fixed on the upper side surface of the upper rubber vibration damping pad and the lower side surface of the lower rubber vibration damping pad, and the upper rubber vibration damping pad and the lower rubber vibration damping pad are respectively located in an inner cavity of the vibration damping part corresponding to the vibration damping devices.
In the suspension support assembly, the support comprises two support plates which are arranged in parallel, and a web plate which is arranged between the two support plates and is welded with the two support plates at two sides, wherein the bearing plates are welded at the tops of the support plates and the web plate, a plurality of first damping devices are arranged on the two support plates and/or the web plate, the first damping devices are arranged up and down in the first damping devices of the damping devices comprising the two damping plates, the mounting parts of the damping plates are fixed on the corresponding plates in the support plates and the web plate through bolts, and gaps are reserved between the vibration damping parts and the surfaces of the corresponding plates.
The technical scheme for achieving the purpose of the utility model is as follows: the suspension support assembly comprises a shock absorber arranged on a bearing plate of a support, wherein the support comprises two support plates which are arranged in parallel and a web plate which is arranged between the two support plates and is welded with the two support plates at two sides, the bearing plate is welded at the tops of the support plates and the web plate, and a plurality of shock absorbing devices are arranged on the two support plates and/or the web plate; two vibration damping plates in each vibration damping device are arranged up and down, the mounting parts of the vibration damping plates are fixed on corresponding plates in the supporting plate and the web plate through bolts, and gaps are reserved between the vibration damping parts and the surfaces of the corresponding plates.
The technical scheme for achieving the purpose of the utility model is as follows: the engineering machinery comprises a frame and a cab, wherein the cab is mounted on the frame through a plurality of suspension support assemblies.
Compared with the prior art, the vibration damper has an acoustic black hole structure, can absorb passing bending waves, damps vibration on engineering machinery, damps transmission of the vibration to the inside of the cab, and remarkably improves the vibration comfort of the cab.
Drawings
Fig. 1 is a schematic structural view of a first vibration damping device according to a first embodiment of the present utility model.
Fig. 2 is a schematic structural view of a damper plate in the first damper device of the present utility model.
Fig. 3 is a schematic cross-sectional view of a vibration damping plate in the first vibration damping device of the present utility model.
Fig. 4 is a schematic view showing the wavelength change of the vibration incident wave transmitted in the vibration damping plate according to the present utility model.
Fig. 5 is a schematic structural view of a vibration damping plate in the first vibration damping device of the present utility model.
Fig. 6 is a schematic structural diagram of a second vibration damping device according to a second embodiment of the present utility model.
Fig. 7 is a schematic cross-sectional structure of a second vibration damping device of the present utility model.
Fig. 8 is a schematic view of a suspension mount assembly according to a third embodiment of the present utility model.
Fig. 9 is a schematic cross-sectional view of a suspension mount assembly of the present utility model.
Part names and serial numbers in the figure:
the vibration damping device 1, the vibration damping plate 10, the mounting portion 11, the vibration damping portion 12, the mounting surface 13, the mounting hole 14, the vibration damping plate 20, and the groove 21.
The second vibration damping device 30, the second mounting portion 31, the second vibration damping portion 32, the through hole 33, and the vibration damping attachment layer 34.
The first support plate 41, the second support plate 42, the carrier plate 43, the mounting bolts 44, the web 45, the upper rubber damper pad 46, the lower rubber damper pad 47.
Detailed Description
The following describes specific embodiments with reference to the drawings.
Note that ordinal numbers such as "first", "second", and the like in this specification are added to avoid confusion of constituent elements, and do not indicate a certain order or sequence. In the present specification and the like, no ordinal term is added, and in order to avoid confusion of constituent elements, the ordinal term may be added to the claims. In the present specification and the like, ordinal terms are added, and in the claims, ordinal terms may be omitted.
Embodiment one.
Fig. 1 to 4 show a schematic structural view of a first vibration damping device 1 according to an embodiment of the present utility model.
As shown in fig. 1 and 2, the first vibration damping device 1 includes two vibration damping plates 10 and 20 having the same structure, the vibration damping plate 10 includes a rectangular parallelepiped mounting portion 11 having a length direction Y, and a vibration damping portion 12 integrally formed with the mounting portion 11 and extending from the mounting portion 11 in the X direction, and a thickness h of each point of the vibration damping portion 12 in the Z direction is:
wherein: l is the length of the vibration damping portion 12 in the X-direction; t is the thickness of the extension start point of the vibration damping portion 12 in the Z direction. h is a 1 A thickness in the Z direction of the extension end point of the vibration damping portion 12; h (x) is the thickness in the Z direction at the position extending by the length x on the vibration damping portion 12; m is more than or equal to 2; the X direction, the Y direction and the Z direction are three directions which are mutually perpendicular in space.
As shown in fig. 5, the vibration damping plate 20 is in the form of a flat plate and is arranged parallel to the XY plane between the two vibration damping plates 10 and is provided at the edge with a groove 21 into which the extension terminal end of the vibration damping portion 12 is fitted.
The vibration damping plate 20 is made of a vibration damping material such as rubber material, and vibration energy can be effectively absorbed by the vibration damping material and converted into heat energy when the vibration propagates therein, thereby realizing rapid damping of the vibration.
As shown in fig. 3, the thickness at the extension start point of the vibration damping portion 12 is equal to the thickness of the mounting portion 11, and one of the two sides of the vibration damping portion 12 facing the Z direction is a plane. The mounting surface 13 of the mounting portion 11 is provided with mounting holes 14 for mounting the first vibration damping device 1 on the component plane. When the first vibration damping device 1 is mounted on the component plane, the mounting surface 13 is bonded to the component plane. One side surface of the vibration damping portion 12 facing away from the mounting surface 13 is a plane.
In a preferred embodiment, the vibrationThe thickness T of the extension start point of the damping portion 12 is 8 mm, and the extension end point thickness h of the vibration damping portion 12 1 The value of the vibration damping device is 0.5 mm, the total length of the first vibration damping device 1 in the X direction is 50 mm, and the value of the length L of the vibration damping part 12 in the X direction is 43 mm; the length of the first vibration damping device 1 in the Y direction takes a value of 50 mm.
The material of vibration damping plate 10 may be a metal or a non-metal that meets the strength and fatigue requirements, such as Q195, Q235, 45#, carbon fiber, etc.
In the present embodiment, the vibration damping portion 12 of the first vibration damping device 1 has an acoustic black hole vibration damping effect, which uses the gradient change of the geometric parameters of the thin-wall structure to gradually reduce the propagation velocity therein, and the wave velocity is reduced to the reference without occurrence of the reflection phenomenon. The one-dimensional acoustic black hole principle refers to: when the density, poisson ratio and elastic modulus of the material are determined, the wave number K is only determined by the thickness h of the plate, and the smaller h is, the larger K is. The thickness of the one-dimensional acoustic black hole beam at different sections (different x values) can be expressed as a power exponent function (m is more than or equal to 2) formed by the initial thickness T of the beam, the truncated thickness h1 of the beam, the length L of the beam and the length x of the different acoustic black holes; as the thickness h (x) gradually goes to zero, the phase velocity and group velocity of the wave also tend to zero; as shown in fig. 4, when x tends to L, h (L) gradually tends to zero, and the propagation time T0 of the wave tends to be large wirelessly. For the one-dimensional acoustic black hole structure, when the thickness of the one-dimensional acoustic black hole beam is gradually reduced from the initial thickness T to zero, the wave number is larger and larger, the wavelength is smaller and smaller, the amplitude is continuously increased, the speed is lower and slower, and the propagation speed of the wave is reduced to zero under ideal conditions without reflection phenomenon. The vibration transmitted through the vibration damping portion 12 is transmitted to the vibration damping plate 20, and the energy thereof is converted into heat by the vibration damping plate 20.
The cross section of the vibration damping portion 12 of the first vibration damping device 1 has a one-dimensional acoustic black hole beam structure, and the vibration transmitted into the vibration damping portion is damped, so that the vibration damping portion constitutes a two-dimensional acoustic black hole vibration damping structure, the first dimension direction is the X direction, and the second dimension direction is the Y direction.
Embodiment two.
Fig. 6 to 7 are schematic structural views showing a second vibration damping device 30 according to an embodiment of the present utility model.
As shown in fig. 6 and 7, the second vibration damping device 30 has a second mounting portion 31 and a second vibration damping portion 32 integrally connected, the second mounting portion 31 having a circular flat plate shape, and the second vibration damping portion 32 having a cylindrical shape extending from a circular edge of the second mounting portion 31 in a normal axial direction of the second mounting portion 31; the thickness h of each point in the axial direction of the second vibration damping portion 32 is:
wherein: l is the length of the second vibration damping portion in the axial direction; t is the thickness of the vibration damping part at the extension starting point; h is a 1 The thickness of the second vibration damping portion at the extension end point; h (x) is the thickness of the second vibration damping portion at a position where x length extends in the axial direction; m is more than or equal to 2.
As shown in fig. 7, the second vibration damping portion 32 has a vibration damping attachment layer 34 on a side surface thereof. The vibration damping attachment layer 34 may be a vibration damping material formed by spraying or a sheet material made of a vibration damping material formed by attaching a patch. The vibration damping attachment layer 34 is used to absorb vibration energy, reduce the amplitude of the vibration, and convert the vibration energy into thermal energy.
The second vibration damping portion 32 has a cylindrical outer surface, and the vibration damping adhesive layer 34 is provided on the inner surface of the second vibration damping portion 32. The second mounting portion 31 is provided with a through hole 33 through which the mounting bolt passes.
In a preferred embodiment, the thickness T of the second vibration damping portion 32 at the extension start point takes a value of 10 mm, and the thickness h of the second vibration damping portion 32 at the extension end point 1 The second vibration damping portion 32 has a length L in the axial direction of 27 mm, which takes a value of 1 mm.
The material of the second vibration damping device 30 may be a metal or a non-metal that meets the strength and fatigue requirements, such as Q195, Q235, 45#, carbon fiber, etc.
In the present embodiment, the damping principle of the vibration by the second vibration damping device 30 is the same as that of the first vibration damping device 1 in the first embodiment. The second vibration damping portion of the second vibration damping device 30 has a one-dimensional acoustic black hole beam structure in cross section, and dampens the incoming vibration, and constitutes a two-dimensional acoustic black hole vibration damping structure in which the first dimension direction is axial and the second dimension direction is circumferential.
Embodiment three.
Fig. 8 to 9 are schematic structural views showing a suspension mount assembly according to an embodiment of the present utility model.
As shown in fig. 8 and 9, the suspension mount assembly includes a mount including a first support plate 41, a second support plate 42 arranged in parallel, a web 45 arranged between the first support plate 41 and the second support plate 42 and welded to the first support plate 41 and the second support plate 42 at both sides, and a carrier plate 43 welded to the tops of the first support plate 41, the second support plate 42 and the web 45 as a carrier.
The suspension mount assembly further comprises an upper rubber vibration dampening pad 46, a lower rubber vibration dampening pad 47, two pieces of second vibration dampening device 30 arranged on the upper and lower sides of the carrier. The mounting parts of the two second vibration reducing devices 30 are respectively fixed on the upper side surface of the upper rubber vibration reducing pad 46 and the lower side surface of the lower rubber vibration reducing pad 47, and the upper rubber vibration reducing pad 46 is positioned in the inner cavity of the vibration damping part of the upper second vibration reducing device 30; the lower rubber damper pad 47 is located in the inner cavity of the vibration damping portion of the lower second damper device 30. The mounting bolts 44 penetrate through the mounting part of the lower second vibration damper 30, the lower rubber vibration damper 47, the bearing plate 43, the upper rubber vibration damper 46 and the mounting part of the upper second vibration damper 30 from bottom to top, and are fixedly connected with a carried member (such as a cab).
In the suspension mount assembly, the second vibration reduction device 30 also functions as a shim, which may be additionally configured as desired in some embodiments.
In some embodiments, the suspension mount assembly further comprises a first vibration damping device 1. As shown in fig. 8 and 9, a plurality of first vibration dampers 1 are mounted on each of the first support plate 41, the second support plate 42, and the web 45, two of the first vibration dampers 1 are arranged up and down, the mounting portion of the vibration damper 10 is fixed to the corresponding plate of the first support plate 41, the second support plate 42, and the web 45 by bolts, the mounting surface 13 of the mounting portion 11 is attached to the surface of the corresponding plate, the plane of the vibration damping portion 12 in the Z direction faces away from the surface of the corresponding plate, and a gap is provided between the vibration damping portion 12 and the surface of the corresponding plate.
In the suspension mount assembly, the second vibration damping device 30 may be mounted only on the upper and lower rubber vibration damping pads, or the first vibration damping device 1 may be mounted only on the first support plate 41, the second support plate 42, and/or the web of the mount.
The embodiment also provides engineering machinery, which comprises a frame and a cab, wherein the cab is arranged on the frame through the suspension support assembly. The work machine may be a loader, grader, road roller, excavator, or the like.
Claims (10)
1. The utility model provides a vibration damper, its characterized in that includes by vibration damping board and two vibration damping boards that the structure is the same, vibration damping board includes the installation department and the vibration damping portion of an organic whole connection, the installation department is the rectangular form block of length direction for Y orientation, vibration damping portion is from extending along X orientation on the installation department and constitutes, vibration damping portion each point is thickness h (X) in Z orientation is:
wherein: l is the length of the vibration damping portion in the X direction; t is the thickness of the vibration damping part in the Z direction at the extension starting point; h is a 1 A thickness of the vibration damping portion in the Z direction at the extension end point; h (X) is the thickness of the vibration damping portion in the Z direction at a position where the X direction extends by the X length; m is more than or equal to 2; the X direction, the Y direction and the Z direction are mutually perpendicular directions in space;
the vibration damping plates are flat plates, are arranged between the two vibration damping plates in parallel to the XY plane, and are provided with grooves at the edges for the extending terminals of the vibration damping parts to be embedded and connected.
2. The vibration damping device according to claim 1, wherein the thickness of the vibration damping portion at the extension start point is equal to the thickness of the mounting portion, and one of both sides of the vibration damping portion facing the Z direction is a plane.
3. Damping device according to claim 1 or 2, characterized in that T has a value of 8 mm, h 1 The value is 0.5 mm, and the value of L is 43 mm; the length of the vibration damping portion in the Y direction is 50±10 mm.
4. The vibration damping device is characterized by comprising an installation part and a vibration damping part which are integrally connected, wherein the installation part is in a flat plate shape, and the vibration damping part extends from the edge of the installation part along the normal direction of the installation part in a cylindrical axial direction; the thickness h (x) of each point of the vibration damping portion in the axial direction is:
wherein: l is the length of the vibration damping portion in the axial direction; t is the thickness of the vibration damping part at the extension starting point; h is a 1 The thickness of the vibration damping part at the extension terminal point; h (x) is the thickness of the vibration damping portion at a position where the vibration damping portion extends by the length x in the axial direction; m is more than or equal to 2;
the vibration damping portion has a vibration damping attachment layer on a side surface thereof.
5. The vibration damping device according to claim 4, wherein the vibration damping portion has a cylindrical structure having a cylindrical outer surface, and the vibration damping adhesive layer is provided on the inner surface of the vibration damping portion.
6. The vibration damping device according to claim 4 or 5, wherein T in the vibration damping portion has a value of 10 mm, h 1 The value is 1 mm, and the value of L is 27 mm.
7. The utility model provides a suspension support assembly, includes the lower rubber damping pad and the upper rubber damping pad of laying in the loading board upside of support, its characterized in that, suspension support assembly still includes two second damping devices, the second damping device is the damping device of any one of claims 4 to 6, two the installation department of second damping device is fixed in the downside of upper side and the lower rubber damping pad of upper rubber damping pad respectively, and upper rubber damping pad and lower rubber damping pad are located respectively and correspond the inner chamber of the vibration damping portion of second damping device.
8. A suspension mount assembly according to claim 7, wherein the mount comprises two parallel support plates, a web plate arranged between and welded to the two support plates, a carrier plate welded to the top of the two support plates and the web plate, and a plurality of first vibration damping devices mounted on the two support plates and/or the web plate, the first vibration damping devices being the vibration damping devices of claim 1 or 3; the two vibration damping plates in each first vibration damping device are arranged up and down, the mounting parts of the vibration damping plates are fixed on the corresponding plates in the two support plates and the web plate through bolts, and gaps are reserved between the vibration damping parts and the surfaces of the corresponding plates.
9. A suspension support assembly comprising a shock absorber arranged on a bearing plate of a support, wherein the support comprises two support plates which are arranged in parallel, and a web plate which is arranged between the two support plates and is welded with the two support plates at two sides, and the bearing plate is welded on the tops of the two support plates and the web plate; the two vibration damping plates in each first vibration damping device are arranged up and down, the mounting parts of the vibration damping plates are fixed on the corresponding plates in the two support plates and the web plate through bolts, and gaps are reserved between the vibration damping parts and the surfaces of the corresponding plates.
10. A construction machine comprising a frame, a cab, characterized in that the cab is mounted on the frame by a plurality of suspension mount assemblies according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286225.5U CN220600346U (en) | 2023-08-24 | 2023-08-24 | Vibration damper, suspension support assembly and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286225.5U CN220600346U (en) | 2023-08-24 | 2023-08-24 | Vibration damper, suspension support assembly and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600346U true CN220600346U (en) | 2024-03-15 |
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ID=90178652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322286225.5U Active CN220600346U (en) | 2023-08-24 | 2023-08-24 | Vibration damper, suspension support assembly and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600346U (en) |
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2023
- 2023-08-24 CN CN202322286225.5U patent/CN220600346U/en active Active
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