CN113357302A - Built-in damping vibration damper - Google Patents
Built-in damping vibration damper Download PDFInfo
- Publication number
- CN113357302A CN113357302A CN202110705492.4A CN202110705492A CN113357302A CN 113357302 A CN113357302 A CN 113357302A CN 202110705492 A CN202110705492 A CN 202110705492A CN 113357302 A CN113357302 A CN 113357302A
- Authority
- CN
- China
- Prior art keywords
- damping
- cylinder
- hydraulic dampers
- hydraulic
- clamp
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 119
- 238000005096 rolling process Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/103—Devices with one or more members moving linearly to and fro in chambers, any throttling effect being immaterial, i.e. damping by viscous shear effect only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application relates to a built-in damping vibration attenuation device, which comprises a connecting cylinder and a damping group, wherein a mounting area for mounting a clamp for clamping a vibration attenuation target is arranged in the connecting cylinder; the damping group is arranged in the connecting cylinder and comprises two hydraulic dampers, the two hydraulic dampers of the damping group are symmetrically arranged on two sides of the arrangement area, cylinder barrels of the two hydraulic dampers contained in the damping group are communicated through a guide pipe, and piston rods of the hydraulic dampers are used for abutting against a clamp. The two opposite hydraulic dampers are interconnected through the guide pipe, so that the hydraulic inertia capacity between the two hydraulic dampers of the damping group is realized, the negative rigidity is provided for the structure by utilizing the hydraulic inertia capacity, and the vibration control effect of the structure can be greatly improved.
Description
Technical Field
The application relates to the technical field of structural vibration control, in particular to a built-in damping vibration attenuation device.
Background
Along with the increasing of the span of the cable-stayed bridge, the length of the stay cable is longer and longer, and the dynamic load response problem of the stay cable is more and more prominent. The stay cable is used as a main bearing component of the cable-stayed bridge, and is easy to vibrate greatly under the excitation of dynamic loads such as wind load, traffic load and the like due to the characteristics of high flexibility, light weight and low damping. The continuous shake of cable not only can lead to the cable and the fatigue destruction of affiliated structure, causes bridge safety structure hidden danger, also can arouse that pedestrian and vehicle produce uncomfortable and unsafe sense, influences the normal operation of bridge.
In the chemical industry, the thermoelectricity industry and other industries, the parameter change of the operating working medium in the steam and water pipelines and the complexity of the thermodynamic system are continuously improved, so that part of the pipelines generate serious vibration, and the safety production is threatened.
The stay cable or the pipeline may vibrate greatly in any direction perpendicular to the axis of the stay cable or the pipeline, and the vibration control of the stay cable or the pipeline is widely performed by adopting a mode of adding a damper at present. In some related technical schemes, a built-in damping ring is often adopted, and the built-in damping ring is mainly of a rubber structure and has limited damping performance.
In other related technologies, a viscous damper with a small volume is adopted, and the built-in damping vibration attenuation mode is a better solution, but the built-in damping vibration attenuation mode cannot ensure that a inhaul cable or a pipeline has a better damping vibration attenuation effect in any direction.
Disclosure of Invention
The embodiment of the application provides a built-in damping vibration attenuation device to solve the problem that the vibration attenuation performance of a built-in vibration attenuation ring is limited in the related technology.
The embodiment of the application provides a built-in damping vibration attenuation device, which comprises:
a connecting cylinder having a seating region therein for seating a jig for holding a vibration damping target;
the damping group is arranged in the connecting cylinder and comprises two hydraulic dampers, the two hydraulic dampers of the damping group are symmetrically arranged on two sides of the arrangement area, cylinder barrels of the two hydraulic dampers contained in the damping group are communicated through a guide pipe, and piston rods of the hydraulic dampers are used for abutting against a clamp.
In some embodiments, the damping group is divided into a part a and a part B, and a line connecting two hydraulic dampers included in the damping group belonging to the part a is substantially perpendicular to a line connecting two hydraulic dampers included in the damping group belonging to the part B.
In some embodiments, the outer profile of the cross section of the clamp is a square structure, the inner profile of the cross section of the clamp is matched with the outer wall of the vibration damping target, and the piston rod of the hydraulic damper is used for abutting against one of the outer walls of the clamp.
In some embodiments, the end of the piston rod is provided with a rolling structure, and the piston rod is in rolling connection with the clamp through the rolling structure.
In some embodiments, the rolling structure employs balls or rollers.
In some embodiments, the hydraulic damper further comprises a damping fluid filled in the cylinder, and a piston connected to the piston rod, the piston being located in the cylinder and dividing the cylinder into a rodless chamber and a rod chamber;
the rodless chambers of the two hydraulic dampers contained in the damping group are communicated through one conduit, and the rod chambers of the two hydraulic dampers contained in the damping group are communicated through the other conduit.
In some embodiments, the end caps at two ends of the cylinder barrel are provided with three-way valves, one end of each three-way valve is communicated with the cylinder barrel, the other end of each three-way valve is communicated with a conduit, and the rest end of each three-way valve is a one-way valve used for injecting damping fluid into the cylinder barrel.
In some embodiments, the conduit is provided with a regulating valve for controlling the connection or disconnection of the cylinders of the two hydraulic dampers included in the damping group.
In some embodiments, a spiral rib is arranged on the inner wall of the connecting cylinder, and the conduit is arranged on the rib; and/or the presence of a gas in the gas,
the connecting cylinder comprises a lower flange plate and an upper flange plate which are connected with each other.
In some embodiments, a waterproof cover is further mounted on the connecting cylinder; and/or the presence of a gas in the gas,
the hydraulic damper is fixed in the connecting cylinder through a mounting bracket.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a built-in damping vibration attenuation device, which realizes the interconnection of two opposite hydraulic dampers through a guide pipe, thereby realizing the hydraulic inertial capacitance between the two hydraulic dampers of a damping group, providing negative rigidity for a structure by utilizing the hydraulic inertial capacitance, and greatly improving the vibration control effect of the structure.
The natural compaction between the piston rod and the clamp is achieved by adjusting the positions of the two opposite hydraulic damper pistons, so that the connecting gap can be eliminated, the piston rod of the hydraulic damper can adaptively follow the structure to move, and the initial eccentricity during structure installation and the static displacement during loading can be well adapted.
All damping groups are divided into an A part and a B part for installation, and the damping device can adapt to the movement of a damping target in any direction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic plan view of an internal damping vibration attenuation device provided by an embodiment of the present application;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic diagram of the connection of two hydraulic dampers included in the damping group according to the embodiment of the present application;
fig. 4 is a schematic view illustrating connection between a three-way valve and an end cover according to an embodiment of the present application.
In the figure: 1. a connecting cylinder; 10. a lower flange plate; 11. an upper flange plate; 12. a rib plate; 2. a clamp; 3. a hydraulic damper; 30. a piston rod; 31. a rolling structure; 32. a cylinder barrel; 33. a piston; 34. an end cap; 35. a three-way valve; 350. a one-way valve; 36. an ear plate; 4. a conduit; 40. adjusting a valve; 5. stay cable steel ducts; 6. a waterproof cover; 7. mounting a bracket; 8. a vibration damping target.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a built-in damping vibration attenuation device, which can solve the problem that the vibration attenuation performance of a built-in vibration attenuation ring in the related technology is limited.
Referring to fig. 1, 2 and 3, the embodiment of the present application provides an in-built damping vibration damping device, the damping vibration attenuation device comprises a connecting cylinder 1 and a damping group, wherein a mounting area for mounting a clamp 2 is arranged in the connecting cylinder 1, the clamp 2 is clamped and fixed on a vibration attenuation target 8, the vibration attenuation target 8 can be a stay cable, a pipeline and other members needing vibration attenuation, when the vibration-damping target 8 is a stay cable, the clamp 2 is a cable clamp, when the vibration-damping target 8 is a pipeline, the clamp 2 is a pipe clamp, the vibration-damping target 8 passes through the connecting cylinder 1, the damping sets are arranged in the connecting cylinder 1, each damping set comprises two hydraulic dampers 3, the two hydraulic dampers 3 of each damping set are symmetrically arranged on two sides of the arrangement area, so as to be symmetrically arranged on both sides of the clamp 2, the cylinders 32 of the two hydraulic dampers 3 included in the damping group are communicated through the guide pipe 4, and the piston rods 30 of the hydraulic dampers 3 are used for abutting against the clamp 2.
The damping vibration attenuation device provided by the embodiment realizes the interconnection of two opposite hydraulic dampers 3 through the guide pipe 4, thereby realizing the hydraulic inertia capacity between the two hydraulic dampers 3 of the damping group, providing negative rigidity for the structure by utilizing the hydraulic inertia capacity, and greatly improving the structure vibration control effect.
The natural compaction between the piston rod 30 and the clamp 2 can be achieved by adjusting the positions of the pistons of the two opposite hydraulic dampers 3, so that the connection gap can be eliminated, the piston rod of the hydraulic damper 3 can adaptively follow the structure to move, and the initial eccentricity during structure installation and the static displacement during loading can be well adapted.
According to the actual situation, during the design, the required hydraulic inerter can be conveniently adjusted by adjusting the pipe diameter or the length of the guide pipe 4.
The damping vibration attenuation device provided by the embodiment can adjust the orientation of the two hydraulic dampers 3 of the damping group according to actual requirements during installation so as to realize vibration attenuation of in-plane vibration or vibration of out-of-plane vibration.
The hydraulic damper 3 may be a viscous damper.
Because the stay cable or the pipeline may vibrate greatly in any direction perpendicular to the axis thereof, the designed damping vibration attenuation device needs to ensure a good vibration attenuation effect in any direction.
For this purpose, in some preferred embodiments, referring to fig. 1, the damping group is divided into a part a and a part B, and the connecting line of the two hydraulic dampers 3 included in the damping group belonging to the part a is substantially perpendicular to the connecting line of the two hydraulic dampers 3 included in the damping group belonging to the part B.
During installation, the orientation of the two hydraulic dampers 3 of the damping group is adjusted, so that the damping group of the part A realizes one of vibration reduction of in-plane vibration and vibration reduction of out-of-plane vibration, and the damping group of the part B realizes the other one of vibration reduction of in-plane vibration and vibration reduction of out-of-plane vibration.
For example, referring to fig. 1, there are two damping sets in the figure, one damping set belongs to part a, the other damping set belongs to part B, when the vibration-damping target 8 vibrates at any angle, the partial motion amount of the vibration-damping target 8 in the installation axis direction of the hydraulic damper 3 drives the piston rod 30 to reciprocate, so as to provide inertial damping for the vibration-damping target 8, and the partial motion amount perpendicular to the installation axis direction of the hydraulic damper 3 can be released by the piston rod 30 moving on the clamp because the piston rod 30 and the clamp 2 are not fixed.
Therefore, the present embodiment mounts all damping groups in two parts, part a and part B, and can accommodate any direction of movement of the vibration damping target 8.
Referring to fig. 1, in some preferred embodiments, the outer profile of the cross section of the clamp 2 is a square structure, the inner profile is matched with the outer wall of the damping target 8 so that the clamp 2 can be well fitted and clamped on the damping target 8, the piston rod 30 of the hydraulic damper 3 is used for abutting against one of the outer walls of the clamp 2, and the outer profile of the cross section is square so as to allow the piston rod 30 to freely move on the end face without falling off.
For example, when the damping target 8 is a cable or a pipe, the cross section of the clamp 2 has an inner-round and outer-square profile, and for example, for some special-shaped damping targets 8, if the inner profile of the cross section is polygonal, the inner profile of the clamp 2 is also polygonal.
Alternatively, a vibration damping cushion may be provided between the jig 2 and the vibration damping target 8.
The clamp 2 is cut in half from the opposite corners and connected by bolts.
Referring to fig. 1, 2 and 3, in some preferred embodiments, the end of the piston rod 30 is provided with a rolling structure 31, the piston rod 30 is connected with the clamp 2 in a rolling manner through the rolling structure 31, and the friction between the piston rod 30 and the clamp 2 can be reduced through the rolling structure 31 to enable the piston rod 30 and the clamp 2 to be in the rolling connection.
In some preferred embodiments, the rolling structure 31 employs balls or rollers.
Referring to fig. 3, in some preferred embodiments, the hydraulic damper 3 further includes a damping fluid filled in the cylinder 32, and a piston 33 connected to the piston rod 30, the piston 33 being located in the cylinder 32 and dividing the cylinder 32 into a rodless chamber and a rod chamber;
the rodless chambers of the two hydraulic dampers 3 contained in the damping group are communicated through one conduit 4, and the rod chambers of the two hydraulic dampers 3 contained in the damping group are communicated through the other conduit 4.
The piston 33 is a closed piston, when the piston 33 reciprocates, the damping fluid in the rodless chambers of the two hydraulic dampers 3 included in the damping group circulates in a reciprocating manner, and the damping fluid in the rod chambers is the same.
In use, the rodless chamber, the rod chamber and the conduit 4 of the cylinder 32 are preferably filled with damping fluid.
The hydraulic damper 3 of the embodiment adopts a single-rod structure, can realize a vibration damping function superior to that of the traditional double-rod damper without a complex adjusting air chamber, has a simple structure, and saves more space than the traditional double-rod damper.
Referring to fig. 3 and 4, in some preferred embodiments, the end caps 34 at both ends of the cylinder 32 are provided with three-way valves 35, one end of each three-way valve 35 is communicated with the cylinder 32, the other end is communicated with the conduit 4, the other end is provided with a one-way valve 350 for injecting damping fluid into the cylinder 32, the one-way valve 350 is also used for injecting damping fluid into the conduit 4, and in order to prevent the damping fluid from being exposed, a plug can be further arranged on the one-way valve 350 for further sealing.
Referring to fig. 3 and 4, in some preferred embodiments, the conduit 4 is provided with an adjusting valve 40, and the adjusting valve 40 can control the connection or disconnection of the cylinders 32 of the two hydraulic dampers 3 included in the damping group, so that the hydraulic dampers 3 and the clamp 2 are rigidly connected or in a damping manner through the connection or disconnection of the adjusting valve 40.
For example, when the cable force needs to be accurately measured by a frequency analysis method, the regulating valve 40 blocks the damping fluid from communicating, and the hydraulic damper 3 becomes a rigid fulcrum with a definite position, so that the cable vibration is slightly influenced except that the vibration length of the cable is reduced. Therefore, the interference of the hydraulic damper 3 on the measurement of the cable force of the inhaul cable can be conveniently eliminated through the closing operation of the regulating valve 40, and the cable force of the whole life cycle of the inhaul cable can be accurately obtained.
Referring to fig. 2, in some preferred embodiments, the inner wall of the connector barrel 1 is provided with helical ribs 12, and the conduit 4 is provided on the ribs 12. By arranging the rib 12, the conduit 4 is arranged on the rib 12, so that the conduit 4 is hidden and protected, and the structure is more compact.
In order to make the best use of space, and to arrange the conduits 4 appropriately, the three-way valves 35 of one damping group can be directed upwards and the three-way valves 35 of the other damping group directed downwards, such that one damping group uses the upper space and the other damping group uses the lower space.
Referring to fig. 2, in some preferred embodiments, the connector barrel 1 comprises a lower flange 10 and an upper flange 11 connected to each other, the lower flange 10 being adapted to be mounted on the stay cable steel duct 5 when applied to a stay cable;
the upper flange 11 and the lower flange 10 may be welded or bolted.
The connecting cylinder 1 is also provided with a waterproof cover 6, and specifically, the waterproof cover 6 is connected with the upper flange 11.
The hydraulic damper 3 is fixed in the connecting cylinder 1 by a mounting bracket 7, and specifically, as shown in fig. 2 and 3, the hydraulic damper 3 is provided with an ear plate 36 fixed on the mounting bracket 7 by bolts, and the mounting bracket 7 is welded on the upper surface of the lower flange 10.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An internal damping vibration attenuation device is characterized by comprising:
a connecting cylinder (1) having a seating region therein for seating a jig (2) for holding a vibration damping target (8);
the damping group is arranged in the connecting cylinder (1) and comprises two hydraulic dampers (3), the two hydraulic dampers (3) of the damping group are symmetrically arranged on two sides of the arrangement area, cylinder barrels (32) of the two hydraulic dampers (3) contained in the damping group are communicated through guide pipes (4), and piston rods (30) of the hydraulic dampers (3) are used for abutting against the clamp (2).
2. The internally damped vibration damping device according to claim 1 wherein: the damping group is divided into a part A and a part B, and a connecting line of the two hydraulic dampers (3) contained in the damping group belonging to the part A is approximately vertical to a connecting line of the two hydraulic dampers (3) contained in the damping group belonging to the part B.
3. The internally damped vibration damping device according to claim 1 wherein: the outer side contour of the cross section of the clamp (2) is of a square structure, the inner side contour of the cross section of the clamp is matched with the outer wall of the vibration damping target (8), and a piston rod (30) of the hydraulic damper (3) is used for abutting against one of the outer walls of the clamp (2).
4. The internally damped vibration damping device according to claim 1 wherein: the end part of the piston rod (30) is provided with a rolling structure (31), and the piston rod (30) is in rolling connection with the clamp (2) through the rolling structure (31).
5. The built-in damping vibration attenuating device according to claim 4, wherein: the rolling structure (31) adopts balls or rollers.
6. The internally damped vibration damping device according to claim 1 wherein:
the hydraulic damper (3) further comprises damping fluid filled in the cylinder (32) and a piston (33) connected with the piston rod (30), wherein the piston (33) is positioned in the cylinder (32) and divides the cylinder (32) into a rodless chamber and a rod chamber;
rodless chambers of the two hydraulic dampers (3) included in the damping group are communicated through one guide pipe (4), and rod chambers of the two hydraulic dampers (3) included in the damping group are communicated through the other guide pipe (4).
7. The built-in damping vibration attenuating device according to claim 6, wherein: the damping device is characterized in that three-way valves (35) are arranged on end covers (34) at two ends of the cylinder barrel (32), one end of each three-way valve (35) is communicated with the cylinder barrel (32), the other end of each three-way valve is communicated with the guide pipe (4), and the rest end of each three-way valve is a one-way valve (350) used for injecting damping liquid into the cylinder barrel (32).
8. The internally damped vibration damping device according to claim 1 wherein: and the guide pipe (4) is provided with an adjusting valve (40) for controlling the connection or disconnection of the cylinder barrels (32) of the two hydraulic dampers (3) contained in the damping group.
9. The internally damped vibration damping device according to claim 1 wherein: a spiral rib plate (12) is arranged on the inner wall of the connecting cylinder (1), and the conduit (4) is arranged on the rib plate (12); and/or the presence of a gas in the gas,
the connecting cylinder (1) comprises a lower flange plate (10) and an upper flange plate (11) which are connected with each other.
10. The internally damped vibration damping device according to claim 1 wherein: a waterproof cover (6) is further mounted on the connecting cylinder (1); and/or the presence of a gas in the gas,
the hydraulic damper (3) is fixed in the connecting cylinder (1) through a mounting bracket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705492.4A CN113357302A (en) | 2021-06-24 | 2021-06-24 | Built-in damping vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705492.4A CN113357302A (en) | 2021-06-24 | 2021-06-24 | Built-in damping vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113357302A true CN113357302A (en) | 2021-09-07 |
Family
ID=77536147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110705492.4A Pending CN113357302A (en) | 2021-06-24 | 2021-06-24 | Built-in damping vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113357302A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148617A (en) * | 2021-11-19 | 2022-03-08 | 广东精铟海洋工程股份有限公司 | Offshore wind turbine blade transportation fixing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018607A (en) * | 1988-05-19 | 1991-05-28 | Lisega Gmbh | Hydraulic dashpot for pipeline systems |
| CN103620122A (en) * | 2011-06-22 | 2014-03-05 | Ihc荷兰Ie有限公司 | Centre system |
| CN104019320A (en) * | 2014-05-27 | 2014-09-03 | 中国船舶重工集团公司第七○二研究所 | Three-dimensional dynamic vibration absorber for pipeline |
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN207961745U (en) * | 2018-02-14 | 2018-10-12 | 恩平安智建筑工程机械有限公司 | A kind of hydraulic concrete delivery pump pipe clamp |
| CN208703289U (en) * | 2018-07-17 | 2019-04-05 | 浙江海洋大学 | A kind of pipe vibration damper |
| CN210890383U (en) * | 2019-08-21 | 2020-06-30 | 盐城市高跃机械有限公司 | Underground garage pipeline anti-seismic support |
| CN112944044A (en) * | 2021-04-25 | 2021-06-11 | 三峡大学 | Concrete pump pipe fixing structure for super high-rise building construction |
| CN215171781U (en) * | 2021-06-24 | 2021-12-14 | 中铁桥研科技有限公司 | Built-in damping vibration damper |
-
2021
- 2021-06-24 CN CN202110705492.4A patent/CN113357302A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018607A (en) * | 1988-05-19 | 1991-05-28 | Lisega Gmbh | Hydraulic dashpot for pipeline systems |
| CN103620122A (en) * | 2011-06-22 | 2014-03-05 | Ihc荷兰Ie有限公司 | Centre system |
| CN104019320A (en) * | 2014-05-27 | 2014-09-03 | 中国船舶重工集团公司第七○二研究所 | Three-dimensional dynamic vibration absorber for pipeline |
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN207961745U (en) * | 2018-02-14 | 2018-10-12 | 恩平安智建筑工程机械有限公司 | A kind of hydraulic concrete delivery pump pipe clamp |
| CN208703289U (en) * | 2018-07-17 | 2019-04-05 | 浙江海洋大学 | A kind of pipe vibration damper |
| CN210890383U (en) * | 2019-08-21 | 2020-06-30 | 盐城市高跃机械有限公司 | Underground garage pipeline anti-seismic support |
| CN112944044A (en) * | 2021-04-25 | 2021-06-11 | 三峡大学 | Concrete pump pipe fixing structure for super high-rise building construction |
| CN215171781U (en) * | 2021-06-24 | 2021-12-14 | 中铁桥研科技有限公司 | Built-in damping vibration damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148617A (en) * | 2021-11-19 | 2022-03-08 | 广东精铟海洋工程股份有限公司 | Offshore wind turbine blade transportation fixing device |
| CN114148617B (en) * | 2021-11-19 | 2023-12-12 | 广东精铟海洋工程股份有限公司 | Marine fan blade transportation fixing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215171781U (en) | Built-in damping vibration damper | |
| US4815574A (en) | Frictionless damper | |
| CN101994775B (en) | Composite damping single-piston rod viscous damper | |
| CN104632989B (en) | A kind of high performance fluids damping isolator and vibration-isolating platform in parallel | |
| CN101725660A (en) | High-frequency decoupling piston magneto-rheological damper | |
| CN1786510A (en) | Damper | |
| CN113357302A (en) | Built-in damping vibration damper | |
| KR101510403B1 (en) | Snubber for supporting pipe | |
| JP2011112216A (en) | Base isolation system | |
| CN107795625B (en) | A kind of fluid pressure type damping buffer | |
| CN109356959A (en) | A kind of self-adapted remote Active vibration-reducing system | |
| RU2537053C2 (en) | Hydraulically damping support | |
| KR100487068B1 (en) | System for isolating vibration and noise using magnetorheological fluid damper | |
| CN114458718A (en) | Anti-settling magneto-rheological vibration absorber for high-pressure hydraulic pipeline system and working process of anti-settling magneto-rheological vibration absorber | |
| CN108150580B (en) | Invariable-damping special-shaped symmetrical buffer | |
| CN117759676A (en) | Vibration damper for offshore wind power tower | |
| KR20140050438A (en) | A pipe hanger | |
| CN110529660A (en) | A kind of intelligent magneto-rheological vibration damping pipe clamp | |
| CN113389838B (en) | Inertial volume-damping-rigidity fluid type realization device | |
| CN2213885Y (en) | Hydraulic damper | |
| CN104776153B (en) | MR mount based on unidirectionally extruded pattern | |
| CN208714875U (en) | A kind of two-chamber floating cylinder and its simple pendulum arm suspension of application | |
| JP2011094722A (en) | Damper | |
| RU89646U1 (en) | HYDRAULIC DAMPER | |
| RU2475660C1 (en) | Viscous friction vibration damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |