CN216923647U - Viscous damper with large damping coefficient - Google Patents
Viscous damper with large damping coefficient Download PDFInfo
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- CN216923647U CN216923647U CN202123259627.3U CN202123259627U CN216923647U CN 216923647 U CN216923647 U CN 216923647U CN 202123259627 U CN202123259627 U CN 202123259627U CN 216923647 U CN216923647 U CN 216923647U
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- plunger
- casing
- viscous damper
- damping coefficient
- lower shell
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Abstract
The utility model relates to a viscous damper with a large damping coefficient, which comprises a lower shell, wherein a lower connecting plate is horizontally arranged at the bottom of the lower shell, damping liquid is arranged in the lower shell, an upper connecting plate is arranged above the lower shell, an upper shell and a plunger piston are vertically arranged at the bottom of the upper connecting plate, the lower end of the plunger piston is inserted into the damping liquid, the inner and outer contours of the lower end of the plunger piston are both in a corrugated pipe shape, and the inner and outer contours of the lower shell are in a corrugated pipe shape. Through the special design and manufacture of the plunger and the lower shell, the contact area of the damping fluid with the plunger and the lower shell is increased, and the damping coefficient of the viscous damper is improved.
Description
Technical Field
The utility model relates to a viscous damper with a large damping coefficient, and belongs to the technical field of vibration control.
Background
The viscous damper is a general device for pipeline vibration reduction, the vibration reduction principle of the viscous damper is that the vibration kinetic energy of a pipeline is consumed through the deformation of damping liquid, the larger the contact area between the damping liquid and a plunger and a shell is, the larger the deformation surface area of the damping liquid is, the better the energy consumption effect of the damping liquid is, and the larger the damping coefficient of the viscous damper is; the existing viscous damper is improved in damping coefficient by increasing the diameters of the shell and the plunger, so that more materials and larger processing equipment are required for manufacturing, and a larger steel frame is required for installation, so that the manufacturing cost and the installation cost are increased.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: the viscous damper with the large damping coefficient is provided, the damping coefficient of the viscous damper is improved under the condition that the diameters of the shell and the plunger are not changed, and the manufacturing cost and the installation cost of a product are reduced.
The utility model relates to a viscous damper with a larger damping coefficient, which comprises a lower shell arranged vertically, wherein a lower connecting plate tightly attached to the bottom of the lower shell is horizontally arranged at the bottom of the lower shell, damping liquid for generating damping force is arranged in the lower shell, an upper connecting plate corresponding to the lower connecting plate is horizontally arranged above the lower shell, an upper shell corresponding to the lower shell is vertically arranged at the bottom of the upper connecting plate, a plunger with a hollow inner part is vertically arranged in the upper shell at the bottom of the upper connecting plate, the upper end of the plunger is connected to the bottom of the upper connecting plate, and the lower end of the plunger is inserted into the damping liquid in the lower shell, and the viscous damper is characterized in that: the inner and outer contours of the lower end of the plunger piston are both in the shape of a corrugated pipe, and the inner and outer contours of the lower shell are in the shape of a corrugated pipe.
Preferably, the upper end of the plunger is radially provided with a plurality of through holes convenient for ventilation.
Preferably, a sealing sleeve for isolating foreign matters is sleeved on the excircle of the lower shell, the lower end of the sealing sleeve is sleeved on the excircle of the lower shell, and the upper end of the sealing sleeve is sleeved on the excircle of the upper shell.
Further preferably, the hoops are sleeved on the outer circles of the upper end and the lower end of the sealing sleeve.
Further preferably, the length of the sealing sleeve is 2-3 times of the distance between the upper shell and the lower shell.
More preferably, the volume of the damping liquid is 2/3-3/4 of the volume of the lower shell.
More preferably, the diameter of the plunger is 1/3-1/2 of the diameter of the lower shell.
Compared with the prior art, the utility model has the following beneficial effects:
according to the viscous damper with the large damping coefficient, under the condition that the diameter of the plunger and the diameter of the lower shell are not changed, the inner and outer outlines of the plunger and the lower shell are designed into the shape of the corrugated pipe, so that the contact area of damping liquid with the plunger and the shell is increased, the deformation surface area of the damping liquid is increased, the consumption of the damping liquid on the vibration kinetic energy of the pipeline is improved, the damping coefficient of the viscous damper is improved, the size of an installation steel frame is reduced, and the manufacturing cost and the installation cost are reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
in the figure: 1. the device comprises an upper connecting plate 2, a plunger 3, a through hole 4, an upper shell 5, a hoop 6, a sealing sleeve 7, a lower shell 8, damping liquid 9 and a lower connecting plate.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the utility model, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Examples
As shown in fig. 1, the viscous damper with a large damping coefficient comprises a vertically arranged lower casing 7, a lower connecting plate 9 closely attached to the lower casing 7 is horizontally arranged at the bottom of the lower casing 7, a damping liquid 8 for generating a damping force is arranged in the lower casing 7, an upper connecting plate 1 corresponding to the lower connecting plate 9 is horizontally arranged above the lower casing 7, an upper casing 4 corresponding to the lower casing 7 is vertically arranged at the bottom of the upper connecting plate 1, a hollow plunger 2 is vertically arranged in the upper casing 4 at the bottom of the upper connecting plate 1, the upper end of the plunger 2 is connected to the bottom of the upper connecting plate 1, the lower end of the plunger 2 is inserted into the damping liquid 8 in the lower casing 7, the inner contour and the outer contour of the lower end of the plunger 2 are both in a corrugated pipe shape, and the inner contour and the outer contour of the lower casing 7 are in a corrugated pipe shape.
The upper end of the plunger 2 is radially provided with a plurality of through holes 3 convenient for ventilation. As shown in figure 1, the technical design of the section can balance the air pressure inside and outside the plunger 2, so that the liquid levels of the damping liquid inside and outside the plunger 2 can be kept consistent, and the damping effect of the viscous damper is improved.
The excircle of lower casing 7 is equipped with the seal cover 6 that is used for keeping apart the foreign matter on the cover, and the lower extreme suit of seal cover 6 is on the excircle of lower casing 7, and the upper end suit of seal cover 6 is on the excircle of upper casing 4. As shown in figure 1, the technical design of the section can effectively prevent dust and rainwater from entering the damper, and the service life of the damping liquid is prolonged.
And the hoops 5 are sleeved on the outer circles at the upper end and the lower end of the sealing sleeve 6. As shown in fig. 1, this section of technology improves the safety of the sealing sleeve 6 and also facilitates the replacement of the sealing sleeve 6.
The length of the sealing sleeve 6 is 2-3 times of the distance between the upper shell 4 and the lower shell 7. As shown in fig. 1, the technical design of this segment is beneficial to reducing the specification of the sealing sleeve 6, and the production efficiency is improved while the stock is reduced.
The volume of the damping liquid 8 is 2/3-3/4 of the volume of the lower shell 7. As shown in FIG. 1, the technical design of this section can ensure that when the plunger 2 swings in the damping liquid 8, the damping liquid 8 does not overflow the lower shell 7, and the cost is saved while the use requirement is met.
The diameter of the plunger 2 is 1/3-1/2 of the diameter of the lower shell 7. As shown in fig. 1, this section of technical design is beneficial to reducing the specification of the plunger 2, and the production efficiency is improved while the stock is reduced.
As shown in fig. 1 and 2, when in installation, the pipe clamp accessory is firstly installed on a pipeline, and then the viscous damper is connected to the pipe clamp accessory through an upper connecting plate 1; then the pipe clamp accessories slide on the pipeline to enable the lower connecting plate 9 to be placed on a firm steel frame, then the pipe clamp accessories are fastened with the pipeline through bolts, the position of the lower connecting plate 9 is adjusted to enable the lower connecting plate to correspond to the upper connecting plate 1, and finally the lower connecting plate 9 is fastened on the steel frame.
As shown in fig. 2, in operation, when the pipeline vibrates, vibration is transmitted to the upper connecting plate 1 and the plunger 2 through the pipe clamp accessory, the plunger 2 swings in the damping liquid 8 along with the vibration of the pipeline, the inner side of the damping liquid 8 is tightly wrapped on the inner surface and the outer surface of the plunger 2, the outer side of the damping liquid 8 is tightly attached to the inner wall of the lower shell 7, the plunger 2 can extrude and stretch the damping liquid 8 when swinging left and right, at the moment, the damping liquid 8 deforms in order to prevent the plunger 2 from swinging, the damping liquid 8 generates heat due to self deformation, the generated heat is diffused into air through the lower shell 7, the kinetic energy of the pipeline vibration is converted into heat energy, and vibration isolation of the pipeline is achieved.
As shown in fig. 2, when the pipe works, when the pipe has vibration in the left and right directions and vibration in the up and down directions or the front and back directions, the plunger 2 can vibrate along with the pipe in multiple directions, because the plunger 2 immersed in the damping fluid 8 is in the shape of a corrugated pipe, compared with a cylinder with the same diameter and length, the surface area of the plunger 2 in the corrugated pipe structure is much larger, and similarly, the lower shell 7 is also in the corrugated pipe structure, so that the contact area between the inner side of the damping fluid 8 and the plunger 2 is increased, and the contact area between the outer side of the damping fluid 8 and the inner side of the lower shell 7 is also increased, thereby improving the damping coefficient of the viscous damper and improving the damping effect of the viscous damper.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a viscous damper of great damping coefficient, lower casing (7) including vertical setting, the bottom level of casing (7) is provided with rather than lower connecting plate (9) of closely laminating down, be provided with damping fluid (8) that are used for producing the damping force in casing (7) down, the top level of casing (7) is provided with upper junction plate (1) corresponding with lower connecting plate (9) down, vertically be provided with in the bottom of upper junction plate (1) and lower casing (7) corresponding upper casing (4), vertically be provided with inside hollow plunger (2) in upper casing (4) of upper junction plate (1) bottom, the bottom in upper junction plate (1) is connected to the upper end of plunger (2), the lower extreme of plunger (2) inserts in damping fluid (8) in casing (7) down, its characterized in that: the inner and outer contours of the lower end of the plunger (2) are both in the shape of a corrugated pipe, and the inner and outer contours of the lower shell (7) are in the shape of a corrugated pipe.
2. A viscous damper with a large damping coefficient according to claim 1, wherein: the upper end of the plunger (2) is provided with a plurality of through holes (3) which are convenient for ventilation along the radial direction.
3. A viscous damper with a large damping coefficient according to claim 1, wherein: the excircle of lower casing (7) is equipped with sleeve gasket (6) that is used for keeping apart the foreign matter on the cover, and the lower extreme suit of sleeve gasket (6) is on the excircle of lower casing (7), and the upper end suit of sleeve gasket (6) is on the excircle of last casing (4).
4. A viscous damper with a large damping coefficient according to claim 3, wherein: hoops (5) are sleeved on the excircle of the upper end and the lower end of the sealing sleeve (6).
5. The viscous damper with a large damping coefficient according to claim 4, wherein: the length of the sealing sleeve (6) is 2-3 times of the distance between the upper shell (4) and the lower shell (7).
6. A viscous damper with a large damping coefficient according to claim 1, wherein: the volume of the damping liquid (8) is 2/3-3/4 of the volume of the lower shell (7).
7. A viscous damper with a large damping coefficient according to claim 1, wherein: the diameter of the plunger (2) is 1/3-1/2 of the diameter of the lower shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123259627.3U CN216923647U (en) | 2021-12-23 | 2021-12-23 | Viscous damper with large damping coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123259627.3U CN216923647U (en) | 2021-12-23 | 2021-12-23 | Viscous damper with large damping coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216923647U true CN216923647U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123259627.3U Active CN216923647U (en) | 2021-12-23 | 2021-12-23 | Viscous damper with large damping coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216923647U (en) |
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2021
- 2021-12-23 CN CN202123259627.3U patent/CN216923647U/en active Active
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