阅读说明：本技术 一种t型阻尼减振平板 (T-shaped damping vibration attenuation flat plate ) 是由 张峰 沈琪 胡东森 高岩 余晓丽 张晓伟 于 2019-09-19 设计创作，主要内容包括：本发明涉及一种T型阻尼减振平板,包括下底板,所述下底板的上焊接有间隔纵横交错排列的T型件,构成支撑T型台,所述支撑T型台的顶部配合安装有阻尼橡胶块,所述阻尼橡胶块的顶部通过安装螺栓固定有上面板,所述安装螺栓依次穿过上面板、阻尼橡胶块和支撑T型台的上部,将上述三者锁紧在一起。本发明结构紧凑、合理,操作方便,通过阻尼橡胶块与支撑T型台的配合作用,在双层夹芯平板中加入阻尼减振的结构,从而在原有的结构基础上使其具有阻尼耗能的功能,大大的提高了使用可靠性,隔振效果佳。(The invention relates to a T-shaped damping flat plate which comprises a lower base plate, wherein T-shaped pieces which are arranged at intervals in a criss-cross mode are welded on the lower base plate to form a supporting T-shaped table, a damping rubber block is installed at the top of the supporting T-shaped table in a matched mode, an upper panel is fixed at the top of the damping rubber block through a mounting bolt, and the mounting bolt sequentially penetrates through the upper panel, the damping rubber block and the upper portion of the supporting T-shaped table to lock the upper panel, the damping rubber block and the supporting T-shaped table together. The double-layer sandwich flat plate vibration isolation structure is compact and reasonable in structure and convenient to operate, and a damping vibration attenuation structure is added in the double-layer sandwich flat plate through the matching effect of the damping rubber block and the support T-shaped table, so that the double-layer sandwich flat plate vibration isolation structure has a damping energy dissipation function on the basis of the original structure, the use reliability is greatly improved, and the vibration isolation effect is good.)

1. a T type damping vibration attenuation is dull and stereotyped which characterized in that: including lower plate (4), the last welding of lower plate (4) has interval vertically and horizontally staggered's T type spare, constitutes and supports T type platform (3), support the top cooperation of T type platform (3) and install damping rubber piece (2), the top of damping rubber piece (2) is fixed with top panel (1) through construction bolt (5), construction bolt (5) pass upper panel (1), damping rubber piece (2) and the upper portion of supporting T type platform (3) in proper order, are in the same place with above-mentioned three locking.

2. A T-shaped damping plate as claimed in claim 1, wherein: damping rubber piece (2) form through a plurality of rubber damping strip vertically and horizontally staggered arrangement, the bottom of every rubber damping strip be provided with T type top complex type groove, the cross-section of every rubber damping strip becomes "T" style of calligraphy structure.

3. a T-shaped damping plate as claimed in claim 1, wherein: the thickness of the lower bottom plate (4) is smaller than that of the upper panel (1).

Technical Field

The invention relates to the technical field of vibration reduction equipment, in particular to a T-shaped damping flat plate.

Background

The double-layer sandwich flat plate structure is widely applied to aircrafts such as airplanes, ships, submarines, missiles and the like, and is favored by design engineers due to the characteristics of light weight, high specific strength, good rigidity, buffering, vibration absorption and the like. Generally, the power equipment inside the aircraft is mounted on a flat plate, when the power equipment works, the flat plate causes the vibration of the flat plate structure, and the flat plate transmits the vibration outwards, so that radiation noise is generated, and the radiation noise is one of the main sources of the radiation noise of the aircraft structure.

The double-layer sandwich flat plate structure is designed to meet the structural strength requirement firstly, and then has the functions of vibration reduction and noise reduction, and the two must be coordinated and unified. With the application of new materials and new structures in engineering in recent years, the design of a double-layer sandwich flat plate structure also shows diversified development trends, and the structural form can be greatly changed, such as a honeycomb sandwich plate, a V-shaped corrugated sandwich plate, a triangular sandwich plate, a corrugated sandwich plate, a grid sandwich plate, a hollow square tube plate and the like. The sandwich material also can be selected from ester foam, foamed aluminum alloy, glass fiber reinforced plastic sandwich, polyurethane sandwich, light metal sandwich and the like. The horizontal floor board design of trains and airplanes also adopts the structure of sandwich multilayer composite material boards and the like.

Disclosure of Invention

The applicant provides a T-shaped damping vibration attenuation flat plate aiming at the defects in the prior art, so that damping vibration attenuation measures are introduced into the structural design of the double-layer sandwich flat plate, and the flat plate structure has damping energy dissipation characteristics on the basis of keeping the original structural strength, so that the vibration isolation effect of the double-layer sandwich flat plate is improved.

The technical scheme adopted by the invention is as follows:

The utility model provides a T type damping vibration attenuation is dull and stereotyped, includes the lower plate, the last welding of lower plate has interval vertically and horizontally staggered's T type spare, constitutes and supports T type platform, the damping rubber piece is installed in the top cooperation of supporting T type platform, the top of damping rubber piece is fixed with the top panel through construction bolt, construction bolt passes top panel, damping rubber piece in proper order and supports the upper portion of T type platform, locks above-mentioned three together.

The further technical scheme is as follows:

The damping rubber block is formed by arranging a plurality of rubber damping strips in a criss-cross mode, a T-shaped groove matched with the top of the T-shaped part is formed in the bottom of each rubber damping strip, and the cross section of each rubber damping strip is of a T-shaped structure.

The thickness of the lower base plate is smaller than that of the upper plate.

The invention has the following beneficial effects:

The double-layer sandwich flat plate vibration isolation structure is compact and reasonable in structure and convenient to operate, and a damping vibration attenuation structure is added in the double-layer sandwich flat plate through the matching effect of the damping rubber block and the support T-shaped table, so that the double-layer sandwich flat plate vibration isolation structure has a damping energy dissipation function on the basis of the original structure, the use reliability is greatly improved, and the vibration isolation effect is good.

The invention ensures the requirements of the bearing and stability of the flat plate structure, simultaneously integrates damping vibration attenuation measures into the design of the flat plate structure, improves the energy loss factor of the flat plate structure to vibration transmission, and effectively reduces the vibration energy transmitted to the base through the flat plate.

The damping rubber block and the support T-shaped table are adopted, the structural matching degree of the damping rubber block and the support T-shaped table is high, the connection is tight, and the phenomenon of slippage or falling off cannot occur after the damping rubber block and the support T-shaped table are fixed through gluing and bolts.

according to the invention, the flat plates are connected by sections with the damping vibration attenuation structures in the longitudinal and transverse directions, so that the rubber blocks are simple to replace and convenient for later maintenance.

The invention can be used for controlling the vibration of platforms such as ships, vehicles, airplanes and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view (full sectional view) of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Wherein: 1. an upper panel; 2. a damping rubber block; 3. supporting a T-shaped table; 4. a lower base plate; 5. and (6) installing a bolt.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, 2 and 3, the T-shaped damping flat plate of the present embodiment includes a lower plate 4, T-shaped members are welded on the lower plate 4 and arranged in a criss-cross manner at intervals to form a support T-shaped platform 3, a damping rubber block 2 is installed on the top of the support T-shaped platform 3 in a matching manner, an upper panel 1 is fixed on the top of the damping rubber block 2 through a mounting bolt 5, and the mounting bolt 5 sequentially penetrates through the upper panel 1, the damping rubber block 2 and the upper portion of the support T-shaped platform 3 to lock the three together.

The damping rubber block 2 is formed by arranging a plurality of rubber damping strips in a criss-cross mode, a T-shaped groove matched with the top of the T-shaped part is formed in the bottom of each rubber damping strip, and the cross section of each rubber damping strip is of a T-shaped structure.

The thickness of the lower plate 4 is smaller than that of the upper plate 1.

The invention adopts a double-layer flat plate structure, wherein the upper surface of a lower flat plate (namely a lower bottom plate 4) is provided with a T-shaped reinforcing rib (namely a support T-shaped platform 3), the support T-shaped platform 3 faces upwards, and the top of the support T-shaped platform is provided with a damping rubber block 2, thereby forming a vibration damping structure, and an upper plate 1, the damping rubber block 2 and the support T-shaped platform 3 are simultaneously connected by adopting a mounting bolt 5.

The size of two adjacent support T-shaped platforms 3 and the distance between the two support T-shaped platforms are determined by the design of a flat plate, the transverse distance of the mounting bolts is determined by the size of the T-shaped platforms, and the longitudinal distance and the number are determined by the weight and the vibration magnitude of mounting equipment on the flat plate.

Support T type platform 3 and lower plate 2 direct weld and form, damping rubber piece 2 complete cladding is on supporting T type platform 3, and its vertical direction corresponds mounting bolt 5 and has beaten the through-hole, and upper panel 1 adopts mounting bolt 5 to fix with supporting T type platform 3, and the equipment vibration transmits to supporting T type platform 3 and lower plate 4 through damping rubber piece 2 on.

In the actual installation process, the double-layer stiffened flat plate with the bearing performance such as the bearing performance and the static deformation requirement of the flat plate is designed, the thickness of the upper panel 1 and the lower panel 4 and the size of the support T-shaped table are optimized, the number and the distance of longitudinal and transverse T-shaped pieces are determined according to the structural strength requirement, and the structural design of the double-layer stiffened flat plate is completed.

According to the requirements of the flat vibration reduction and isolation performance, a damping rubber block 2 is designed, a rubber material with high damping characteristic is selected, the hardness of the material is selected to be 38-65, the thickness of a rubber layer is designed to be 6-12 mm, and the damping rubber block is selected according to the size of the flat and the requirements of the vibration reduction and isolation performance indexes of the flat. The upper panel and the T-shaped reinforcing ribs are connected by bolts.

The vibration of the equipment on the flat plate is firstly transmitted to the damping rubber block 2 through the upper panel 1 and then transmitted to the support T-shaped table 3 and the lower bottom plate 4 through the damping rubber block 2, so that the vibration is transmitted to the mounting support base. The vibration energy is effectively dissipated and absorbed in the flat T-shaped damping rubber block and is converted into energy in other forms for releasing, so that the vibration damping performance of the flat structure is improved.

The specific processing steps are as follows:

The first step is as follows: according to the requirements of flat plate structure bearing and static force deformation, a double-layer reinforced structure flat plate is designed, and the thickness, the size of the reinforcing ribs and the size of the connecting bolts of the upper panel 1 and the lower bottom plate 4 are determined.

The second step is that: according to the requirements of flat plate damping vibration attenuation, selecting a rubber damping material with proper hardness, and processing a damping rubber block 2, wherein the thickness of the damping rubber block 2 is 6-12 mm.

The third step: the damping rubber block 2 and the support T-shaped table 3 are connected in an adhesive mode, holes are formed in the corresponding positions of the upper panel 1 and the T-shaped piece, and the mounting bolts 5 are locked.

The fourth step: the damping rubber blocks 2 and the upper panel 1 are fixed and combined to form a double-layer damping vibration attenuation flat plate.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.