CN109931361B - Large-scale fan assembled is along with adjustable high-efficient spring damping vibration damper of shape - Google Patents
Large-scale fan assembled is along with adjustable high-efficient spring damping vibration damper of shape Download PDFInfo
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- CN109931361B CN109931361B CN201811621686.0A CN201811621686A CN109931361B CN 109931361 B CN109931361 B CN 109931361B CN 201811621686 A CN201811621686 A CN 201811621686A CN 109931361 B CN109931361 B CN 109931361B
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Abstract
The invention provides a large fan assembly type shape-following adjustable high-efficiency spring damping vibration attenuation device, which comprises: the damping device comprises a plurality of steel spring damping shock absorbers (1) which are assembled, wherein viscous dampers and steel springs which can be selected and assembled as required are arranged in the steel spring damping shock absorbers, the viscous dampers are placed between shock absorber assembling frames (2) to form rigid supports, the vibration energy of a large fan is consumed, the steel springs are arranged around the viscous dampers, and the selection and assembly scheme is optimally designed according to the actual measurement data of the operation of the fan; damping device assembly jig (2), install the upper portion and the lower part at the steel spring damping shock absorber (1) of a plurality of assemblies, with the laminating of fan foundation platform, its size can be adjusted according to different grade type fan foundation platform's shape, unanimous with fan foundation platform along with the shape, can not occupy extra space, steel spring damping shock absorber (1) upper surface has the effective assembly damping device hole of interval arrangement, reserve assembly damping device hole and installation fixed position hole.
Description
Technical Field
The invention relates to the technical field of vibration control during operation of a large fan, in particular to an assembly type shape-following adjustable efficient spring damping vibration attenuation device for the large fan.
Background
At present, the vibration control technology of a large fan placed at the top of a building in operation is not complete, and a rubber support vibration reduction technology or pure equipment concrete foundation vibration reduction is mainly adopted. In the working process, the two technologies are difficult to meet the requirement of vibration reduction design, and have the following defects respectively:
(1) the rubber support has short service life and poor damping performance. By adopting the rubber support vibration reduction technology, rubber is easy to corrode and age in the outdoor environment, is easy to deform and damage, has limited vibration reduction and isolation performance, and cannot be modified once damaged. The rubber support vibration damping pad needs to be replaced, the equipment is required to be disassembled, the construction is complex, the economical efficiency is poor, and the convenience is not realized.
(2) The pure equipment concrete foundation can not be damped and can not be reformed again: the pure concrete foundation only depends on the vibration reduction of the equipment foundation, and the vibration reduction efficiency is extremely low. The fan basis is even as an organic whole with the building body, and the later stage can't be adjusted the fan vibration frequency change, can't be under construction once more and reform transform.
In addition, both techniques suffer from the following disadvantages: the structural style is fixed singly, can not adjust according to actual conditions. The traditional scheme has fixed foundation and limited damping effect, and can not carry out optimal design on the damping scheme according to the actual running condition of the large-scale fan and the change of the later-stage vibration frequency.
Disclosure of Invention
In order to overcome the defects of the prior art, aiming at the problems that the effective use area of the ground of the current large building is reduced, the power equipment such as a large fan is generally placed on the roof and causes floor vibration during operation, and the safety and the human comfort of the building structure are damaged, the assembled type shape-following adjustable high-efficiency spring damping device for the large fan is provided, the vibration transmission is weakened by adopting a vibration control technology of assembling a steel spring damping vibration absorber and a shape-following vibration damping device assembling frame, the vibration damping efficiency of the power equipment such as the large fan can reach more than 95 percent, the problem of vibration damage caused during the operation of the large fan is effectively solved, the vibration damping efficiency of the device is high, the vibration generated during the operation of the large fan equipment can be effectively isolated, the safety and the stability of the building structure are ensured, and a comfortable working living environment is provided.
One object of the present invention is to provide a large fan assembly type shape-following adjustable high-efficiency spring damping vibration attenuation device, which comprises:
the assembled steel spring damping shock absorbers (1) are internally provided with viscous dampers and steel springs which can be selected and matched as required, the viscous dampers are placed between the shock absorber assembly frames (2) to form rigid supports and consume the vibration energy of a large fan, a plurality of steel springs are arranged around the viscous dampers, the selection scheme of the assembled steel spring damping shock absorbers (1) is optimally designed according to the actual measurement data of the fan operation, and vibration reduction and isolation are effectively realized;
the assembly frame (2) of the vibration damper is arranged on the upper portion and the lower portion of the steel spring damping vibration dampers (1) of a plurality of assemblies and attached to the fan foundation platform, the size of the assembly frame can be adjusted according to the shapes of different types of fan foundation platforms, the assembly frame is consistent with the fan foundation platforms along with the shapes, and extra space cannot be occupied.
Preferably, one side of the upper surface and one side of the lower surface of the vibration damper assembly frame (2) are respectively provided with a round universal level bubble (3) which is arranged on the upper surface of the assembly frame, and the leveling is assisted during installation, so that the level of the fan foundation platform is ensured.
Preferably, the upper surface of the steel spring damping shock absorber (1) is provided with effective assembly shock absorber holes, standby assembly shock absorber holes and installation fixing positioning holes which are arranged at intervals, the installation fixing positioning holes are installed between the effective assembly shock absorber holes and the standby assembly shock absorber holes, the effective assembly shock absorber holes are the closing positions of bolts and are used for connecting devices, the standby assembly shock absorber holes are used as standby assembly holes, the stability of connection of the steel spring damping shock absorber units and the assembly frame can be increased according to actual conditions, and the installation fixing positioning holes are used for playing a positioning role in the production process and the test process so as to facilitate production and test.
Preferably, different damping media are selected and matched for the viscous damper according to the vibration characteristics of different types of fans, so that the structural vibration response is reduced, and the energy of the vibration generated by the operation of the fans to the building structure is absorbed and consumed to the maximum extent.
The invention has the beneficial effects that:
the invention combines the damping device of the steel spring damping vibration absorber and the assembly frame of the damping device to form a free-form adjustable assembly type efficient spring damping vibration absorber, which can effectively control the vibration of equipment and reduce the vibration hazard. The technology has the following characteristics:
(1) the vibration reduction efficiency is high. The device carries out targeted vibration reduction design on the steel spring damping vibration absorber and carries out targeted selection on the spring stiffness, the mass and the damping liquid. The shape-following adjustable device is matched with vibration customized adjustment, the internal work and vibration conditions of the fan are actually analyzed, modal distribution is optimized, the performance of the vibration damping device is maximized, and vibration damping efficiency is greatly improved.
(2) Can be adjusted along with the shape. The whole system can customize the assembly rack of the vibration damper according to the shape and the size of the specified fan foundation and the vibration characteristics inside the fan through a combined assembly mode, so that the assembly rack of the vibration damper is matched with the shape and the quality of the equipment foundation, and no extra space is occupied. And the vibration characteristics and the working conditions of the fans of different types are considered, the mass gravity center of the fan and the foundation is analyzed, the positions and the number of the steel spring damping vibration absorbers in the assembly frame are optimized and adjusted, and the vibration caused by the large fan is effectively damped.
(3) Light weight and assembly. All the accessories of the shape-following adjustable efficient spring damping vibration attenuation device can be assembled, the transportation and the transportation are convenient, the assembly is easy, the disassembly is simple, and the field assembly and the construction are convenient.
(4) The construction period is short. The device can realize that all accessories are assembled, does not have large-scale complicated equipment, adopts the form of complete assembly, need not supplementary construction, saves construction and concrete maintenance time, greatly shortens construction cycle. .
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a large fan assembly type shape-following adjustable efficient spring damping vibration attenuation device according to an embodiment of the invention;
FIG. 2 is a schematic plane adjustable cloth diagram of a large fan assembly type shape-following adjustable high-efficiency spring damping vibration attenuation device according to an embodiment of the invention;
FIG. 3 is a schematic structural view of an assembled steel spring-damped shock absorber in accordance with an embodiment of the present invention
Detailed Description
Referring to fig. 1, the embodiment is applied to a large fan of a certain wind farm in Xinjiang, and the shape-following adjustable efficient spring damping vibration attenuation device is assembled on the large fan, and comprises:
the assembled steel spring damping shock absorbers 1 are internally provided with viscous dampers and steel springs which can be selected and matched as required, the viscous dampers are placed between the shock absorber assembling frames 2 to form rigid supports and consume the vibration energy of a large fan, the steel springs are arranged around the viscous dampers, the selection scheme of the assembled steel spring damping shock absorbers 1 is optimally designed according to the actual measurement data of the running of the fan, and vibration reduction and isolation are effectively realized; the vibration damper assembly rack 2 is arranged on the upper portion and the lower portion of the steel spring damping vibration dampers 1 assembled in a plurality of ways, is attached to the fan foundation platform, can be adjusted in size according to the shapes of different types of fan foundation platforms, is consistent with the fan foundation platforms in shape, and does not occupy extra space. One side of the upper surface and the lower surface of the vibration damper assembly rack 2 is respectively provided with a round universal level bubble 3 which is arranged on the upper surface of the assembly rack, and the leveling is assisted during the installation, so that the level of the fan foundation platform is ensured.
According to the embodiment, different damping media are selected and matched by the viscous damper according to the vibration characteristics of two types of fans (distinguished according to power) used in the wind power plant, so that the structural vibration response is reduced, and the energy of the vibration generated by the operation of the fans to the building structure is absorbed and consumed to the maximum extent.
Referring to fig. 2, a hatched portion is a portion where the plurality of assembled steel spring damper shock absorbers 1 coincide with the vibration damping device mounting bracket 2, and a non-hatched portion is a portion of the vibration damping device mounting bracket 2.
Referring to fig. 3, steel spring damping shock absorber 1 upper surface has the effective assembly damping device hole of interval arrangement, reserve assembly damping device hole and installation fixed location hole, installation fixed location hole is installed between effective assembly damping device hole and reserve assembly damping device hole, effective assembly damping device hole is the closed position of bolt, be used for connecting device, reserve assembly damping device hole is as reserve pilot hole, choose for use according to actual conditions, the stability that multiplicable steel spring damping unit is connected with the assembly jig, installation fixed location hole is arranged in production flow and test flow, play the positioning action, in order to make things convenient for production and test.
This embodiment is applied to a large-scale fan assembled is along with shape adjustable high-efficient spring damping vibration damper, and the effect after the actual installation is:
(1) the vibration reduction is carried out along with the shape foundation, and the structure can be assembled and easily adjusted. The embodiment is formed by the vibration damper assembly frame and the steel spring damping vibration damping unit together, and the customized vibration damper assembly frame is consistent with the base plane according to the shape and the size of the fan base. The structural components of the device can be detached, and the construction is easy. The internal components of the fan equipment are damaged, so that the vibration frequency is changed, the position of the steel spring damping vibration attenuation unit can be optimized and adjusted again, and the vibration isolation efficiency is maximized.
(2) Optimizing the design and configuration process, and combining into a high-efficiency spring damping vibration attenuation composite system. According to the embodiment, the mass center of gravity of the fan and the foundation is analyzed according to the actual vibration condition, the parameters of spring components and damping are optimally designed, and the unit configuration scheme and the overall vibration damping performance of the efficient spring damping vibration damping device are comprehensively designed.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It will be understood by those skilled in the art that variations and modifications of the embodiments of the present invention can be made without departing from the scope and spirit of the invention.
Claims (3)
1. The utility model provides a large-scale fan assembled is along with shape adjustable high-efficient spring damping vibration damper which characterized in that includes:
the assembly method comprises the following steps that a plurality of assembled steel spring damping shock absorbers (1) are internally provided with viscous dampers and steel springs which can be selected according to requirements, the viscous dampers are placed between assembly frames (2) of the shock absorption devices to form rigid supports and consume vibration energy of a large fan, a plurality of steel springs are arranged around the viscous dampers, and the selection scheme of the assembled steel spring damping shock absorbers (1) is optimally designed according to actual measurement data of fan operation;
the vibration damper assembly frames (2) are arranged at the upper parts and the lower parts of the steel spring damping vibration dampers (1) which are assembled and are attached to the fan foundation platform, and the size of the vibration damper assembly frames can be adjusted according to the shapes of different types of fan foundation platforms and is consistent with the shape of the fan foundation platforms;
the steel spring damping shock absorber mounting structure comprises a steel spring damping shock absorber (1), and is characterized in that effective assembly shock absorber holes, standby assembly shock absorber holes and mounting fixing positioning holes are arranged on the upper surface of the steel spring damping shock absorber (1) at intervals, the mounting fixing positioning holes are mounted between the effective assembly shock absorber holes and the standby assembly shock absorber holes, the effective assembly shock absorber holes are the closing positions of bolts and used for connecting devices, the standby assembly shock absorber holes are used as standby assembly holes, the stability of connection of the steel spring damping shock absorber and a shock absorber assembly frame can be improved according to actual conditions, and the mounting fixing positioning holes are used for positioning in a production process and a test process so as to facilitate production and testing.
2. The large fan assembly type shape-following adjustable efficient spring damping vibration attenuation device according to claim 1, characterized in that: one side of the upper surface and the lower surface of the vibration damper assembly rack (2) is respectively provided with a round universal level bubble (3), and the level of the fan foundation platform is ensured by auxiliary leveling during installation.
3. The large fan assembly type shape-following adjustable efficient spring damping vibration attenuation device according to claim 1, characterized in that: the viscous damper is matched with different damping media according to the vibration characteristics of different types of fans, so that the structural vibration response is reduced, and the energy of the vibration generated by the operation of the fans to the building structure is absorbed and consumed to the maximum extent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811621686.0A CN109931361B (en) | 2018-12-28 | 2018-12-28 | Large-scale fan assembled is along with adjustable high-efficient spring damping vibration damper of shape |
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| CN201811621686.0A CN109931361B (en) | 2018-12-28 | 2018-12-28 | Large-scale fan assembled is along with adjustable high-efficient spring damping vibration damper of shape |
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| CN109931361A CN109931361A (en) | 2019-06-25 |
| CN109931361B true CN109931361B (en) | 2021-11-23 |
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| CN112228406A (en) * | 2019-07-15 | 2021-01-15 | 中核核电运行管理有限公司 | Shock absorption foundation of control rod driving mechanism fan |
| CN115076288A (en) * | 2022-06-15 | 2022-09-20 | 国机集团科学技术研究院有限公司 | Cradle type damping-adjustable tower secondary radar system operation vibration control technology |
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| DD109936A1 (en) * | 1973-09-03 | 1974-11-20 | ||
| DE10316029B3 (en) * | 2003-04-07 | 2004-08-05 | Mtu Friedrichshafen Gmbh | Mounting frame for IC engine has engine support mountings spaced by blocks of noise damping material from frame |
| CN201851582U (en) * | 2010-10-29 | 2011-06-01 | 中国电力科学研究院 | High-damping anti-overturning composite shock isolation support |
| JP6247870B2 (en) * | 2013-09-12 | 2017-12-13 | 特許機器株式会社 | Seismic reduction device |
| CN205208083U (en) * | 2015-11-24 | 2016-05-04 | 河北省电力勘测设计研究院 | Three -legged support of fixed levelling rod |
| CN106439400A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Supporting underframe |
| CN206361080U (en) * | 2016-12-30 | 2017-07-28 | 青岛科而泰环境控制技术有限公司 | Vibrating isolation system with backpressure device |
| CN207661316U (en) * | 2017-12-13 | 2018-07-27 | 苏州海德新材料科技股份有限公司 | Equipment mounting structure and compounded shock isolating pedestal |
| CN108980535A (en) * | 2018-06-22 | 2018-12-11 | 铜陵市世纪朝阳数码科技有限责任公司 | Level(l)ing device is used in a kind of installation of household electrical appliance |
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