CN201301502Y - Rubber lead core damper - Google Patents

Abstract

The utility model discloses a rubber lead core damper. Its structure is: the second steel plate is placed between the two middle steel plates, and placed between the two first steel plates together, rubber sheets are respectively arranged between each steel plate, and are bonded together by vulcanization to form a composite part ; There is a lead core hole in the middle of the composite part, and ring plates are arranged on both sides of the lead core hole; the lead core is located in the lead core hole, and the composite part is placed between two splints and fixed by bolts; Backing plates are arranged at both ends of the core; disc springs are installed at both ends of the backing plate; cover plates are arranged on the disc springs and fixed by bolts; connecting steel plates are welded at both ends of the composite part. The rubber lead core damper of the utility model exerts three-way pressure on the lead core to make it generate damping force when shear deformation occurs, thereby consuming the vibration energy in the structure. The lead rubber damper has the advantages of long service life, large and reliable damping force, simple structure, convenient manufacture, cheap price and the like.

Description

A rubber lead damper

technical field

The utility model relates to a damper, in particular to a rubber lead core damper, which can be used as a vibration control device for civil engineering structures under the action of strong winds and earthquakes.

Background technique

Structural vibration control is to consume and absorb vibration energy by setting vibration control devices in the structure, thereby reducing the dynamic response of the structure and improving the reliability of the structure. Devices that dissipate energy and damp vibrations are often called dampers. Studies in recent years have shown that civil engineering can effectively suppress vibrations caused by strong winds, earthquakes, etc. by setting dampers in the structure. Although there are various dampers in the domestic market: metal yield dampers, friction dampers, viscous liquid dampers, tuned mass dampers, etc., the application research in this field is still in its infancy in the field of civil engineering. It is necessary to develop various dampers suitable for different structures and different requirements to meet the needs of the project. At the same time, in recent years, there are more and more fields using dampers for vibration reduction, so it is necessary to develop more practical and effective energy dissipation and vibration reduction devices.

Contents of the invention

The purpose of the utility model is to provide a rubber lead damper, which has stable performance, safety and effectiveness, simple structure, low cost, convenient construction and maintenance, and large energy consumption capacity.

In order to achieve the above purpose, the structure of the rubber lead damper provided by the utility model is: the second steel plate is placed between the two middle steel plates, and is placed between the two first steel plates together, and each steel plate is respectively arranged There are rubber sheets, which are bonded together by vulcanization to form a composite part; a lead core hole is opened in the middle of the composite part, and ring plates are arranged on both sides of the lead core hole; the lead core is located in the lead core hole, and the composite part Placed between two splints and fixed by bolts; there are backing plates at both ends of the lead core; disc springs are installed at both ends of the backing plate; a cover plate is set on the disc springs and fixed by bolts ; Both ends of the composite part are respectively welded with connecting steel plates.

The rubber lead core damper of the utility model exerts three-way pressure on the lead core to make it generate damping force when shear deformation occurs, thereby consuming the vibration energy in the structure. When the lead core is in a state of shear deformation, the lead core is naturally compressed in three directions due to the smaller hole volume of the lead core. When the lead core is in the middle position without deformation, its hoop pressure needs to be generated by the splint by tightening the bolts to force the rubber to deform vertically and change the diameter of the lead core hole; the vertical pressure of the lead core is forced by the cover plate Produced by disc spring deformation. Because lead has the characteristics of high plasticity, low strength, and strong reshaping ability, that is, it has recrystallization ability during dynamic reciprocating deformation; while rubber is isolated from the air except for the surrounding circle under the tight pressure of the steel plate, and will not age and corrode. . Therefore, the lead rubber damper has the advantages of long service life, large and reliable damping force, simple structure, convenient manufacture, and low price.

Description of drawings

Fig. 1 is the top view of the utility model rubber lead damper.

Fig. 2 is a sectional view along A-A of Fig. 1 .

Fig. 3 is a B-B sectional view of Fig. 1 .

Detailed ways

The working principle of the damper of the utility model is: apply pre-pressure to the rubber and lead core through splints and disc springs, so that the rubber and lead cores are sheared and deformed to generate damping force, thereby consuming the vibration energy in the structure. Among them, the lead core provides damping force along the shear deformation direction (hereinafter referred to as the horizontal direction) under the state of three-way compression; rubber not only provides damping force when shear deformation occurs simultaneously with the lead core, but also plays a role in the ring of the lead core. The steel plate plays the role of connecting and restraining the rubber in the vertical direction of the lead core (hereinafter referred to as the vertical direction), and plays the role of transmitting displacement and driving the damper to shear deformation when connected with the structure in the horizontal direction. Function; the splint exerts pre-pressure on the rubber by tightening the bolts in the vertical direction to improve the binding force of the rubber to the lead core, especially when the lead core is in a state of no displacement in the middle, it applies a hoop pressure to it; the cover plate forces the disc shape The spring deforms to apply preload to the lead core vertically; the middle steel plate between the rubbers plays a role in adjusting the height of the lead core. Below in conjunction with accompanying drawing and example the utility model is described in further detail.

As shown in Figures 1 to 3, the utility model damper includes: a first steel plate 1, a second steel plate 2, a rubber sheet 3, an intermediate steel plate 4, a splint 5, a ring plate 6, a lead core 7, a backing plate 8, a disc Shape spring 9, cover plate 10, bolt 11 and connecting steel plate 12.

The second steel plate 2 is placed between the two middle steel plates 4, and is placed between the two first steel plates 1 together, and the rubber sheets 3 and adhesives are respectively used between the steel plates to bond together through vulcanization to form Composite part; a lead core hole is opened in the middle of the composite part, and ring plates 6 are welded on both sides of the lead core hole; after the lead core 7 is pressed into the lead core hole, the composite part is placed between two splints 5 , fixed with bolts 13; put a backing plate 8 at both ends of the lead core 7; install disc springs 9 at both ends of the backing plate 8; cover the cover plate 10 on the disc spring 9, and fix it with bolts 11; composite The two ends of the piece are respectively welded to connect steel plates 12.

By tightening the bolts 13, the first steel plate 1 is compressed, the rubber sheet 3 is deformed, and a hoop pressure is generated on the lead core 7. By tightening the bolt 11, the disk spring 9 is forced to deform, and a vertical pressure is applied to the lead core 7.

The shape of the connecting steel plate 12 can be changed according to the connection mode of the damper in the structure; the diameter of the lead core and the hardness of the rubber should be determined according to the parameters of the damper; the lead core can be made of 9999 lead; the diameter of the bolt, the stacked shape The type of spring should be determined according to the requirements of preload; the thickness of the middle steel plate and ring plate should be determined according to the height requirements of the lead core.

Claims (1)

1, a kind of rubber lead for retractable pencil damper is characterized in that:

Second steel plate (2) places between two middle steel plates (4), and together places between two first steel plates (1), is respectively arranged with sheet rubber (3) between each block plate, and bonds together by sulfuration, forms composite members; Have the lead for retractable pencil hole at the middle part of composite members, be provided with ring flat-plate (6) on the both sides in lead for retractable pencil hole; Lead for retractable pencil (7) is arranged in the lead for retractable pencil hole, and described composite members places between two clamping plate (5), and fixing by bolt (13); Be provided with backing plate (8) at lead for retractable pencil (7) two ends; At the two ends of backing plate (8) disk spring (9) is installed again; Disk spring (9) is provided with cover plate (10), and fixing by bolt (11); The two ends of composite members are welded with respectively and connect steel plate (12).

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