CN219692120U - Silicon oil damper, vibration reduction connection structure and engineering machinery - Google Patents
Silicon oil damper, vibration reduction connection structure and engineering machinery Download PDFInfo
- Publication number
- CN219692120U CN219692120U CN202320587367.2U CN202320587367U CN219692120U CN 219692120 U CN219692120 U CN 219692120U CN 202320587367 U CN202320587367 U CN 202320587367U CN 219692120 U CN219692120 U CN 219692120U
- Authority
- CN
- China
- Prior art keywords
- damping
- cup
- silicone oil
- rubber
- oil damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 5
- 239000003921 oil Substances 0.000 title abstract description 5
- 229910052710 silicon Inorganic materials 0.000 title abstract description 5
- 239000010703 silicon Substances 0.000 title abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 9
- 238000013016 damping Methods 0.000 claims description 78
- 229920001971 elastomer Polymers 0.000 claims description 45
- 239000005060 rubber Substances 0.000 claims description 45
- 229920002545 silicone oil Polymers 0.000 claims description 45
- 238000010276 construction Methods 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 3
- 230000035939 shock Effects 0.000 abstract description 4
- 239000006096 absorbing agent Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The utility model relates to a shock absorber, which aims to solve the problem that the traditional silicone shock absorber only has a shock absorbing effect in the axial direction of a central shaft. The silicon oil damper can be used for eliminating, reducing and isolating low-frequency vibration in three directions of space XYZ.
Description
Technical Field
The present utility model relates to a damper, and more particularly, to a silicone oil damper, a damper connecting structure, and an engineering machine.
Background
Silicone dampers are widely used in the engineering machinery industry for damping vibrations of engines, gearboxes, cabs, etc. The main structure of the existing silicone oil damper mostly comprises rubber filled in a shell, a central shaft fixed in the rubber, and a damping disk central shaft fixed at the end of the central shaft in a closed cavity. The filling rubber and the shell are fixedly connected through vulcanization, a closed cavity is formed in the shell, and damping silicone oil is filled in the closed cavity. When the central shaft vibrates up and down under the action of the carried piece, the damping disc moves up and down in the silicone oil to absorb the vibration.
The silicone oil damper with the structure is mainly used for effectively damping Z-direction vibration consistent with the axial direction of the central shaft, and has poor vibration isolation effect on X-direction and Y-direction vibration perpendicular to the axial direction of the central shaft.
Disclosure of Invention
The utility model aims to solve the technical problem that the traditional silicone oil damper only has a damping effect in the axial direction of a central shaft, and provides the silicone oil damper, a damping connecting structure and engineering machinery.
The technical scheme for achieving the purpose of the utility model is as follows: the silicon oil shock absorber is characterized by further comprising a damping cup arranged in the shell and a pressing plate fixedly connected with the cup mouth of the damping cup, wherein the pressing plate is fixedly connected with the lower end of the central shaft, the upper side surface of the pressing plate is in contact with the filling rubber, the bottom of the damping cup is immersed in the silicone oil, damping holes communicated with the inside and the outside are formed in the bottom of the damping cup, and gas is filled in the upper part of the damping cup.
In the utility model, the central shaft moves up and down under the drive of the carried piece, the filled rubber is periodically compressed, restored or stretched by the pressing plate, the damping cup is driven to move up and down, and when the silicone oil in the closed cavity flows through the damping hole due to the movement of the damping cup, the vibration energy of the carried piece can be consumed, so that the purpose of Z-direction vibration reduction is achieved. In the low-frequency vibration in the Y direction and the X direction perpendicular to the Z direction, because the damping cup is arranged in the silicone oil, when the damping cup moves in the horizontal plane, the silicone oil in the damping cup needs to be driven to move and push away the silicone oil outside the damping cup, and the damping cup consumes the energy of the low-frequency vibration of the carried piece in the Y direction and the X direction, so that the purpose of vibration reduction in the Y direction and the X direction is achieved.
In the silicone oil damper, the opening of the damping cup and the pressing plate are vulcanized and sealed in the filling rubber.
In the silicone oil damper of the present utility model, the central shaft and the pressing plate are integrally structured.
In the silicone oil damper of the present utility model, the center shaft is provided with a threaded hole therein. The threaded hole is used for being matched with the connecting bolt and connected with the carried piece.
In the silicone oil damper, the top of the closed cavity positioned outside the damping cup is filled with gas.
In the silicone oil damper, the top of the filling rubber is flush with the cup opening of the shell.
The technical scheme for achieving the purpose of the utility model is as follows: the utility model provides a structure vibration reduction connection structure, includes the carrier, is born the carrier, rubber vibration reduction pad, connecting bolt, its characterized in that still includes aforementioned silicone damper, the rim of a cup fixed connection of casing is in the backup pad downside of carrier, rubber vibration reduction pad presss from both sides and locates between the backup pad of carrier and the backup pad of being born the carrier, connecting bolt runs through the backup pad of being born the carrier, rubber vibration reduction pad and the backup pad of carrier from top to bottom and locks the center pin of connecting backup pad and silicone damper by the carrier.
In the vibration damping connection structure of the present utility model, for medium-frequency or high-frequency vibration in the direction X, Y, Z, isolation is performed by the rubber vibration damping portion. For Z-direction low-frequency vibration, after the suspension is installed, the upper rubber sheet and the lower rubber sheet are precompressed for a certain distance under the action of the pretightening force of the bolts. The lower vibration damping pad is compressed, restored or stretched periodically, so as to drive the damping cup to move up and down. When the silicone oil in the liquid containing cavity flows through the diversion holes due to the movement of the damping cup, the vibration energy of the carried piece can be consumed, and the purpose of vibration reduction is achieved. For the low-frequency vibration in the Y direction and the X direction, as the damping cup is arranged in the silicone oil, when the damping cup moves in the horizontal plane, the silicone oil in the damping cup needs to be driven to move and the silicone oil outside the damping cup needs to be pushed away, and the energy of the low-frequency vibration of the carried piece in the Y direction and the X direction is consumed, so that the purpose of vibration reduction is achieved.
In the vibration reduction connecting structure, the rubber vibration reduction pad is in a ladder shape, and the small-diameter section of the rubber vibration reduction pad is positioned in the bolt through hole of the supporting plate of the bearing piece.
In the vibration reduction connecting structure, a limit sleeve sleeved with a bolt is arranged in a bolt through hole of the rubber vibration reduction pad, and two ends of the limit sleeve are respectively abutted with the top of a central shaft of the silicone oil damper and the bottom surface of a supporting plate of a carried piece.
The technical scheme for achieving the purpose of the utility model is as follows: the engineering machinery is characterized by comprising the vibration reduction connecting structure. Wherein the carrier is typically a frame, and the supported member may be an engine, a gearbox, a cab, etc. The construction machine may be a loader, an excavator, a grader, a road roller, or the like.
Compared with the prior art, the silicon oil damper can be used for eliminating, reducing and isolating low-frequency vibration in three directions of space XYZ.
Drawings
Fig. 1 is a schematic structural view of a silicone oil damper of the present utility model.
Fig. 2 is a schematic structural view of a damping cup in a silicone oil damper according to the present utility model.
Fig. 3 is an exploded view of the vibration damping connection structure of the present utility model.
Fig. 4 is a schematic structural view of the vibration damping connection structure of the present utility model.
Part names and serial numbers in the figure:
the damping device comprises a shell 11, a central shaft 12, filling rubber 13, a damping cup 14, damping holes 141, silicone oil 15, a pressing plate 16, mounting bolts 17, a bearing piece 21, a rubber damping pad 22, a limiting sleeve 23, a bearing piece 24, a connecting bolt 25 and a gasket 26.
Detailed Description
The following describes specific embodiments with reference to the drawings.
Embodiment one.
Fig. 1 and 2 show the structure of the silicone oil damper of the present utility model.
As shown in fig. 1 and 2, the silicone oil damper includes a housing 11, a center shaft 12, a filling rubber 13, a pressing plate 16, a damping cup 14, and silicone oil 15. The housing 11 is cup-shaped with its opening facing upwards. The filling rubber 12 is located in the housing and the central shaft 12 is located in the filling rubber 13. The top of the filling rubber 13 is flush with the cup opening of the housing 11.
The pressing plate 16 is located at the lower end of the central shaft 12 and is fixedly connected with the central shaft 12, and in this embodiment, the pressing plate 16 and the central shaft 12 are integrally formed. In some embodiments, the pressure plate 16 may be welded to the central shaft 12, or threaded, or bolted to the central shaft. The pressure plate 16 is fixedly connected with the central shaft 12, so that the central shaft 12 can be damped by pressing the filling rubber through the pressure plate when moving upwards, and damped by pressing down the damping cup when the central shaft 12 moves downwards.
The rim of a cup of the damping cup 14 is abutted against the lower side surface of the pressing plate 16, and the pressing plate 16 is fixedly connected with the rim of the damping cup 14, so that the damping cup 14 and the pressing plate 16 can be positioned in the vulcanization process of the silicone damper conveniently, and acting force is transmitted.
The central shaft 12, the pressing plate 16 and the damping cup 14 are formed into an integral structure with the housing 11 and the filling rubber 13 through a vulcanization process, and a closed cavity is formed in the housing 11 below the filling rubber 13, and silicone oil 15 is filled in the closed cavity. The bottom of the damping cup 14 is immersed in the silicone oil 15, the upper space inside the damping cup 14 is filled with gas, and the top of the closed cavity outside the damping cup is filled with gas.
As shown in fig. 2, and the bottom of the damping cup 14 is provided with a damping hole 141 communicating the inside and the outside. The size, shape and position of the damping holes 141 can be adjusted according to the damping to be provided by the suspension. When the central shaft 12 moves up and down, the damping cup 14 also moves up and down, the pressure inside and outside the damping cup 14 changes along with the movement, and the silicone oil consumes the vibration energy of the carried piece when flowing through the damping hole 141 on the damping cup 14, so as to achieve the purpose of vibration reduction.
The central shaft 12 is provided with a threaded hole at the middle and lower part, the threaded hole is used for being matched and connected with the carried piece by the connecting bolt, in some embodiments, the upper end of the central shaft can also be upwards protruded and provided with threads, and the upper end of the central shaft is matched and locked with the nut. The rim of a cup department of casing sets up the edge of bending, and the edge of bending sets up the mounting hole, through cooperating with the mounting bolt and bear the weight of the piece cooperation.
Embodiment two.
Fig. 3 and 4 show the structure of the vibration damping connection structure of the present utility model.
As shown in fig. 3 and 4, the vibration reduction connection structure comprises a bearing member 21, a supported member 24, a rubber vibration reduction pad 22, a connecting bolt 25 and a silicone damper in the first embodiment, wherein the cup opening of the shell 11 is fixedly connected to the lower side surface of a supporting plate of the bearing member 21 through a mounting bolt 17, the rubber vibration reduction pad 22 is clamped between the supporting plate of the bearing member 21 and the supporting plate of the supported member 24, and the connecting bolt 25 vertically penetrates through a gasket 26, the supporting plate of the supported member 24, the supporting plate of the bearing member 21 and the rubber vibration reduction pad 22 to be in locking connection with the supporting plate of the supported member 21 and the central shaft 12 of the silicone damper.
The rubber vibration-damping pad 22 is stepped with its small diameter section located in the bolt penetration of the support plate of the carrier 21. A limit sleeve 23 sleeved with the bolt is arranged in the bolt through hole of the rubber vibration reduction pad 22, and two ends of the limit sleeve 23 are respectively abutted with the top of the central shaft of the silicone oil damper and the bottom surface of the supporting plate of the carried piece under the pretightening force of the connecting bolt.
In this embodiment, the compressed rubber damper pad 22 and the filler rubber 13 are locked by the connecting bolts 25, and the upper and lower rubbers are precompressed a certain distance due to the pretightening force of the connecting bolts after the installation of the damper is completed. For intermediate or high frequency vibrations in direction X, Y, Z, isolation is provided by a filled rubber and rubber vibration dampening pads. The vibration pad is periodically compressed, restored or stretched by the Z-direction low-frequency vibration, so that the damping cup is driven to move up and down. When the silicone oil in the closed cavity flows through the diversion holes due to the movement of the damping cup, the vibration energy of the carried piece can be consumed, and the purpose of vibration reduction is achieved. For the low-frequency vibration in the Y direction and the X direction, as the damping cup is arranged in the silicone oil, when the damping cup moves in the horizontal plane, the silicone oil in the damping cup needs to be driven to move and the silicone oil outside the damping cup is pushed away, and the energy of the low-frequency vibration of the carried piece in the Y direction and the X direction is consumed, so that the purpose of vibration reduction is achieved.
Embodiment three.
The embodiment discloses engineering machinery which is provided with a vibration reduction connecting structure. Wherein the carrier is typically a frame, and the supported member may be an engine, a gearbox, a cab, etc. The construction machine may be a loader, an excavator, a grader, a road roller, or the like.
Claims (10)
1. The utility model provides a silicone oil damper, includes center pin and the packing rubber of fixed connection in cup-shaped casing through vulcanizing, has the closed chamber that fills with silicone oil in the below of packing rubber, its characterized in that still including arrange in the damping cup in the casing, with damping cup rim of a cup fixed connection's clamp plate, the clamp plate with center pin lower extreme fixed connection, the upper side of clamp plate with the bottom of cup of packing rubber contact damping cup submergence in silicone oil and be equipped with the inside and outside damping hole of intercommunication at the bottom of cup, damping cup upper portion fills with gas.
2. The silicone oil damper of claim 1, wherein the damping cup rim and platen are vulcanization sealed in the filler rubber.
3. The silicone oil damper of claim 1, wherein the central shaft is of unitary construction with the pressure plate.
4. A silicone oil damper according to any one of claims 1 to 3, characterized in that a threaded hole is provided in the central shaft.
5. The silicone oil damper of claim 1 wherein the top of the closed cavity outside of the damping cup is filled with a gas.
6. The silicone oil damper of claim 1, wherein the top of the filler rubber is flush with the cup opening of the housing.
7. The utility model provides a damping connection structure, includes carrier, by carrier, rubber damping pad, connecting bolt, its characterized in that still includes the silicone damper of any one of claims 1 to 6, the rim of a cup fixed connection of casing is in the backup pad downside of carrier, rubber damping pad presss from both sides locates between the backup pad of carrier and the backup pad of being carried, connecting bolt runs through the backup pad of being carried, rubber damping pad and the backup pad of carrier from top to bottom and locks the center pin of connecting backup pad and silicone damper of being carried.
8. The vibration-damping connection structure according to claim 7, wherein the rubber vibration-damping pad is stepped with a small diameter section thereof located in the bolt penetration hole of the support plate of the carrier.
9. The vibration reduction connection structure according to claim 8, wherein a limit sleeve sleeved with the bolt is arranged in the bolt through hole of the rubber vibration reduction pad, and two ends of the limit sleeve are respectively abutted with the top of the central shaft of the silicone oil damper and the bottom surface of the supporting plate of the carried piece.
10. A construction machine characterized by having the vibration damping connection structure according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320587367.2U CN219692120U (en) | 2023-03-23 | 2023-03-23 | Silicon oil damper, vibration reduction connection structure and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320587367.2U CN219692120U (en) | 2023-03-23 | 2023-03-23 | Silicon oil damper, vibration reduction connection structure and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692120U true CN219692120U (en) | 2023-09-15 |
Family
ID=87971171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320587367.2U Active CN219692120U (en) | 2023-03-23 | 2023-03-23 | Silicon oil damper, vibration reduction connection structure and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692120U (en) |
-
2023
- 2023-03-23 CN CN202320587367.2U patent/CN219692120U/en active Active
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