CN116065717A - Plate lead damper - Google Patents

Abstract

The invention discloses a plate-type lead damper, which comprises: the core plate is inserted in the middle of the lead block; the clamping plate structure comprises clamping plates symmetrically arranged on two sides of the lead block, and the clamping plates are enclosed by limit plates in the middle area corresponding to the lead block to form a lead block blocking space; the sealing structure is symmetrically arranged between the core plates at the two ends of the lead block and the clamping plates, two ends of the clamping plates are provided with embedded grooves for accommodating the sealing structure, the sealing structure comprises butterfly springs, gaskets and sealing plates which are sequentially embedded into the embedded grooves, and the sealing plates are higher than the limiting plates in a non-pressure state; the loading structure is symmetrically clamped at two sides of the clamping plate structure, and the loading structure applies pre-pressure to the clamping plate and the sealing structure, so that the limiting plate and the sealing plate are abutted against the core plate. According to the invention, the clamping plate structure and the loading structure are used for pressing the lead blocks, and when the core plate transversely moves in the middle of the lead blocks, the extrusion and friction between the core plate and the lead blocks are used for dissipating energy, so that the extrusion friction area is increased, and the energy dissipation efficiency is improved.

Description

Plate lead damper

technical field

The invention relates to the anti-seismic field of building construction, in particular to a plate-type lead damper.

Background technique

The basic forms of energy dissipation devices are all kinds of dampers. Lead dampers belong to metal yield dampers. The damping material is metal lead. The crystal structure of lead is a face-core cube with many slip systems and slip directions. Well, it has high flexibility and ductility. When it is deformed at room temperature, the process of dynamic recovery and dynamic recrystallization will occur simultaneously. Through recovery and recrystallization, the strain hardening will disappear, and the structure and properties of lead will return to those before deformation. State, so there will be no residual stress and no fatigue. Therefore, the performance of the lead damper will not degrade due to long-term use, and it has the outstanding feature of long service life. In addition, lead is very stable in the natural environment and will not be eroded by long-term use. The lead squeeze damper utilizes the plastic flow of lead squeezed to generate damping to consume energy.

There are two main types of existing lead dampers, lead shear dampers and lead squeeze dampers.

The lead shear damper dissipates energy through the shear yield plastic deformation of the lead. Although lead has high flexibility and ductility, but because the yield strength of lead is low, which is only less than one-tenth of that of steel, compared with mild steel dampers, the same yield strength requires more than ten times the shear section ; Simultaneously the connection fixing of lead and steel parts is also more difficult. Therefore, the lead shear damper generally has low working efficiency and high cost.

The lead squeeze damper is composed of three parts. Lead is the core part of the damper to play the role of energy dissipation. When the extrusion shaft in the middle is subjected to external force, the raised part will squeeze the lead to generate damping force. The outer sleeve Enclose the lead in a confined space. When the vibration is transmitted to the damper and pushes the extrusion shaft to reciprocate, the lead in the sleeve undergoes plastic flow deformation to generate damping force, and at the same time absorb and consume external input energy. However, the lead extrusion damper can only dissipate energy by extruding the lead and rubbing the lead through the convex part on the extrusion shaft, and the stress area between the convex part and the lead is small and the efficiency is low. In addition, because the sealing layer between the outer sleeve and the extruding shaft is located on the moving direction of the moving shaft, the sealing layer has a large stress surface, and once it is not tightly combined with the outer sleeve and the extruding shaft, lead leakage will easily occur. At the same time, because the extrusion shaft is shaped, it needs to be melted and poured with lead and manufactured with a milling machine, which is difficult to process and expensive.

Contents of the invention

Aiming at the defects and deficiencies in the prior art, the present invention provides a plate-type lead damper, which can improve energy consumption efficiency, has good sealing effect, effectively prevents lead leakage, and is easy to manufacture and reduce production cost.

In order to solve the above problems, the present invention provides a solution: a plate-type lead damper, which includes:

The core board is inserted in the middle of the lead block;

The plywood structure includes plywood symmetrically arranged on both sides of the lead block and parallel to the core plate, and the middle area of the plywood corresponding to the lead block is surrounded by a limit plate to form a lead block sealing space closed around;

The sealing structure is symmetrically arranged between the core plate and the splint at both ends of the lead block, and the two ends of the splint are provided with embedding grooves for accommodating the sealing structure, and the sealing structure includes sequentially embedding in the embedding groove Belleville springs, gaskets and sealing plates, and the sealing plate is higher than the limiting plate under no pressure;

A loading structure, sandwiched symmetrically on both sides of the splint structure, exerts a preload on the splint and the sealing structure through the loading structure, so that the limiting plate and the sealing plate are attached to the core board.

As a preferred embodiment of the present invention, one side of the core plate extends out of the splint structure and is connected to a first end, and the splint structure is connected to a second end on a side away from the first end .

As a preferred embodiment of the present invention, the two sides of the core plate are milled flat.

As a preferred embodiment of the present invention, both sides of the core plate have slender shallow grooves in the middle area corresponding to the lead block, the core plate is in the shape of a strip, and the shallow grooves are along the short length of the core plate. edge direction and perpendicular to the sliding direction of the lead block.

As a preferred embodiment of the present invention, the core plate is provided with first limiting blocks along the long side direction on both sides of the shallow groove, and the first limiting blocks abut against the limit plate on the adjacent side. outside.

As a preferred embodiment of the present invention, the splint is in the shape of a strip, and the two sides of the two splints along the short side direction are closed and connected by side plates.

As a preferred embodiment of the present invention, the splint is provided with an L-shaped groove along the edge in the middle area corresponding to the lead block, and the limiting plate is partially embedded and fixed in the L-shaped groove. The height of the limiting plate is The part out of the L-shaped groove is against the core plate.

As a preferred embodiment of the present invention, the two sides of the splint along the longitudinal direction are symmetrically provided with second limiting blocks on the outside of the limiting plate, and the second limiting blocks are connected to the limiting plate on the adjacent side. The embedding groove of the sealing structure is formed between the bit plates.

As a preferred embodiment of the present invention, the loading structure includes a plurality of loading beams symmetrically arranged on both sides of the splint structure, the multiple loading beams extend along the short side of the splint, and both ends are pulled by side The plates are connected and fixed, and the loading beam is provided with a high-strength screw for applying preload to the lead block and the sealing structure along the direction perpendicular to the core plate, and the loading beam is provided with a high-strength screw for The hole is pierced and a pre-welded nut is welded corresponding to the hole, and the high-strength screw is screwed to the pre-welded nut.

As a preferred embodiment of the present invention, the plate-type lead damper also includes a backing plate structure, the backing plate structure is symmetrically arranged on both sides of the splint structure and is provided with a high-strength As for the flat gasket, the backing plate structure is symmetrically provided with stiffeners on both sides of the high-strength flat gasket.

Owing to adopting above-mentioned technical scheme, make the present invention have following beneficial effect:

The present invention uses the splint structure and the loading structure to press the lead block. When the core plate moves laterally in the middle of the lead block, the extrusion and friction between the core plate and the lead block are used to consume energy, which increases the extrusion friction. area and improve energy efficiency. By setting the L-shaped groove and the limit plate on the splint, the lead block is sealed in the limit plate, which can prevent the lead from overflowing; at the same time, the two ends of the lead block are provided with a multi-layered sealing structure (Beepee spring + gasket + high Molecular sealing plate), replacing the single sealing material of the original end, can further effectively prevent the lead from overflowing from the end and increase the lead sealing effect.

The plate-type lead damper of the present invention has a simple structure, and can be cold-processed and packaged by assembling lead blocks and steel plates, thereby avoiding the problem of inconvenient processing and manufacturing caused by heat treatment of the lead.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram of the overall structure of a plate-type lead damper according to an embodiment of the present invention.

Fig. 2 is a sectional view at 1-1 in Fig. 1 .

FIG. 3 is a schematic diagram of the loading structure in FIG. 2 .

Fig. 4 is a sectional view at 2-2 in Fig. 3 .

Fig. 5 is a schematic diagram of a splint structure in an embodiment of the present invention (only a single splint structure is shown in the figure).

FIG. 6 is a schematic structural view of the splint in FIG. 5 .

Fig. 7 is a sectional view at 3-3 in Fig. 6 .

Fig. 8 is a sectional view at 4-4 in Fig. 5 .

Fig. 9 is a sectional view at 5-5 in Fig. 5 .

Fig. 10 is a schematic diagram of a sealing structure in an embodiment of the present invention.

FIG. 11 is a schematic diagram of an exploded structure of the sealing structure in FIG. 10 .

Fig. 12 is a schematic diagram of the backing plate structure in the embodiment of the present invention.

Fig. 13 is a sectional view at 6-6 in Fig. 12 .

Fig. 14 is a schematic structural diagram of a core board in an embodiment of the present invention.

Fig. 15 is a sectional view at 7-7 in Fig. 14 .

The corresponding relationship between the marks in the figure is as follows:

1-first end; 2-second end; 3-core plate; 31-shallow groove; 32-first limit block; 4-lead block; 5-splint; 51-limit plate; 52-L Type groove; 53-second limit block; 54-embedded groove; 55-side plate; 56-opening spot welding and fixing; 6-sealing structure; Sealing plate; 7-backing plate structure; 71-stiffener; 72-high-strength flat gasket; 8-loading structure; 81-loading beam; 82-side pull plate; 83-high-strength screw; 84-ring gasket; 85- Pre-soldered nuts; 86-end nuts.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1 and Figure 2, which is a plate-type lead damper provided by the embodiment of the present invention, its main components include: core plate 3, lead block 4, splint structure 5, sealing structure 6, backing plate structure 7 and loading structure 8.

Among them, the core plate 3 can be a steel plate, inserted between the upper and lower layers of lead blocks 4, and the core plate 3 and the lead block 4 can slide relative to each other; Shallow grooves 31, the core board 3 is in the shape of a strip, these elongated shallow grooves 31 are opened along the short side direction of the core board 3 and perpendicular to the sliding direction of the lead block 4, which can further increase the sliding between the lead block 4 and the core board 3 Resistance, the size of the shallow groove 31 can be: groove depth 0.5mm, width 3mm, groove clear distance 1.5mm. As shown in Figure 14 and Figure 15. Further, the core plate 3 is overall milled flat on both sides of the shallow groove 31 area along the long side, in order to reduce damage to the polymer sealing plate in contact with this position during sliding.

In addition, the core plate 3 is symmetrically provided with a first limiting block 32 along the long side direction on both sides of the shallow groove 31. The first limiting block 32 is perpendicular to the surface of the core plate 3, and one end extends to a short side of the core plate 3, and the other There is a certain distance between one end and the other short side of the core board 3, and the distance between the first limiting blocks 32 on both sides is consistent with the width of the lead block 4, so that the lead block 4 can only be restricted along the edge of the core board 3. The long-side direction slides between the first limit blocks 32 on both sides without sliding along the short-side direction of the core board 3 , as shown in FIG. 14 and FIG. 15 .

The polymer sealing plate 63 is a part of the sealing structure 6 , and the polymer sealing plate 63 can be made of a suitable polymer sealing material. As shown in FIG. 10 and FIG. 11 , the sealing structure 6 adopts a multi-layer stacking method, including a disc spring 61 , a gasket 62 and a polymer sealing plate 63 stacked in sequence. Replacing the single sealing material at the end of the traditional lead damper can further effectively prevent the lead chips generated during the movement from overflowing from the end.

Specifically, the sealing structure 6 is symmetrically arranged between the core plate 3 and the plywood structure at both ends of the lead block 4 . The splint structure includes two splints 5 symmetrically arranged on both sides of the lead block 4 and parallel to the core plate 3. The splint 5 is enclosed by a limit plate 51 in the middle area corresponding to the lead block 4 to form a closed lead block sealing space. , as shown in Figure 5, Figure 8 and Figure 9; the splint 5 is in the shape of a strip, and the two sides of the two splints 5 along the short side are closed and connected by side plates 55, as shown in Figure 2, so that the two splints Between the splint 5 and the two side plates 55, a space with open ends for accommodating the lead weight 4 is formed, and the core board 3 is inserted in this space and is located between the upper and lower layers of lead weights 4 . One end of the core plate 3 extends out of the space and is connected to the first end 1, the first end 1 is used to connect with an external building or component; Two ends 2 and the side end of the splint 5 structure is sealed through the second end 2, and the splint structure is connected to another external building or component through the second end 2, thereby completing the plate type lead damping of the present invention device installation.

Further, the two sides of the splint 5 along the longitudinal direction are symmetrically provided with a second limiting block 53 on the outside of the limiting plate 51, the second limiting block 53 is flush with the height of the limiting plate 51, and the second limiting block 53 An embedding groove 54 is formed between the limiting plate 51 on the adjacent side, as shown in Figure 10 and Figure 11, the disc spring 61, gasket 62 and polymer sealing plate 63 of the sealing structure 6 are embedded in the embedding groove 54 in sequence, And the polymer sealing plate 63 is higher than the limiting plate 51 in the no-pressure state, and the sealing structure is exerted pressure through the loading structure, so that the polymer sealing plate 63 is flush with the limiting plate 51. At this time, the belleville spring 61 has a certain initial Pressure, even if the limit plate 51 is partially lifted by the lead block 4, the polymer sealing plate 63 can compress the core plate 3 under the action of the butterfly spring, so that lead chips overflow during the restriction movement. The number of sealing structures 6 in this embodiment is four groups, which are respectively symmetrically located between the core board 3 and the splint 5 at the two ends of the two-layer lead block 4 .

In addition, the splint 5 is provided with an L-shaped groove 52 along the edge in the middle area corresponding to the lead weight 4. As shown in FIGS. The part and the groove wall of the L-shaped groove 52 are fixed 56 by opening spot welding, and the part of the limiting plate 51 higher than the L-shaped groove is used to abut against the core plate 3 . In the plywood structure, the side of the plywood adopts the combination of L-shaped groove and limit plate, replacing the single sealing material on the side of the traditional lead damper, which can better prevent the overflow of lead chips from the side.

The loading structure 8 is sandwiched symmetrically on both sides of the splint structure, and the loading structure 8 exerts a preload on the splint 5 and the sealing structure 6, so that the limiting plate 51 and the polymer sealing plate 63 are attached to the two sides of the core plate 3 . As shown in Figures 3 and 4, the loading structure in this embodiment specifically includes a plurality of loading beams 81 symmetrically arranged on both sides of the splint structure. The side tension plate 82 is connected and fixed, and the setting of the side tension plate 82 makes the loading system have greater rigidity, and also prevents the loading beam 81 from tilting during the loading process.

Further, a high-strength screw 83 for applying preload to the lead block 4 and the sealing structure 6 is provided on each loading beam 81 along a direction perpendicular to the core plate 3, and a high-strength screw 83 is provided on the loading beam 81 for the penetration of the high-strength screw 83. Holes and corresponding holes are welded with annular spacers 84 and pre-welded nuts 85 on the side of the loading beam 81 near the core plate 3 in sequence, and the central holes of the annular spacers 84 and the pre-welded nuts 85 are coaxial with the holes on the loading beam 81 and The size is equivalent, the high-strength screw rods 83 are screwed into the pre-welded nuts 85 one by one, and the head of the high-strength screw rod 82 faces outwards, and the end of the threaded section is screwed with the end after passing through the pre-welded nuts 85 inwardly. The nut 86 presses against the backing plate structure 7 through the end nut 86 to exert pressure on the lead block and the sealing structure.

The loading beam 81 can be made of square steel pipes. During the assembly process, the pre-welded nut 85, the ring gasket 84 and the loading beam 81 are respectively welded and fixed, and then the high-strength screw 83 is screwed into the pre-welded nut 85, and the end nut 86 is screwed into After the high-strength screw rod 83, the end plug welding is ground, and finally the loading beam completed by the above welding is connected to the side pull plate 82.

As shown in Figure 12 and Figure 13, the backing plate structure 7, as an optional part of the plate lead damper of the present invention, is symmetrically arranged on both sides of the splint structure and is provided with the loading end (that is, the high-strength screw 83) of the loading structure 8. The opposite high-strength flat washer 72 can prevent the high-strength screw rod 83 from causing local scratches on the backing plate, resulting in a reduction in loading pressure. In addition, two stiffeners 71 are symmetrically welded on both sides of the high-strength flat gasket 72 in the backing plate structure 7 to prevent the backing plate from bending.

When the plate type lead damper of the present invention is in use, as shown in Figure 1 and Figure 2, the first end 1 on the side of the core plate 3 is installed on one component, and the second end 2 on the side of the splint structure is installed on the other components, to realize the installation of the plate damper of the present invention. When the plate damper is stressed, the first end 1 on the core plate side and the second end 2 on the splint structure side drive the splint structure and the core plate 3 to move relative to each other, and the lead block 4 and the splints on both sides of the lead block 4 5 and the core plate 3 rub against each other to generate frictional energy consumption.

In this embodiment, the core plate 3 and the splint 5 are both steel plates, and the plate-type lead damper of the present invention has a higher energy dissipation capacity due to the high friction coefficient between the steel plate and the lead block.

The side and end of the lead block can be completely closed by using the limiting plate and the sealing structure on the splint to prevent the overflow of lead shavings during the movement. Apply pressure to the sealing structure through the loading structure, so that the polymer sealing plate 63 is flush with the limiting plate 51. At this time, the butterfly spring 61 has a certain initial pressure. Even if the limiting plate 51 is partially lifted by the lead block 4, the polymer sealing The plate 63 can also compress the core plate 3 under the action of the belleville spring, so as to limit the overflow of lead chips in the movement process.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A plate-type lead damper, comprising:

the core plate is inserted in the middle of the lead block;

the clamping plate structure comprises clamping plates which are symmetrically arranged on two sides of the lead block and are parallel to the core plate, and the clamping plates are surrounded by limit plates in the middle area corresponding to the lead block to form a lead block sealing space with the four sides being sealed;

the sealing structure is symmetrically arranged between the core plates at two ends of the lead block and the clamping plates, two ends of the clamping plates are provided with embedded grooves for accommodating the sealing structure, the sealing structure comprises a butterfly spring, a gasket and a sealing plate which are sequentially embedded into the embedded grooves, and the sealing plate is higher than the limiting plate in a non-pressure state;

the loading structure is symmetrically clamped on two sides of the clamping plate structure, and pre-pressure is applied to the clamping plate and the sealing structure through the loading structure, so that the limiting plate and the sealing plate are abutted to the core plate.

2. The plate lead damper of claim 1, wherein one side of the core plate extends beyond the clamping plate structure and is connected with a first end, and wherein the clamping plate structure is connected with a second end on a side remote from the first end.

3. The plate lead damper of claim 1, wherein the core plate is milled flat on both side surfaces.

4. The plate type lead damper according to claim 1, wherein the core plate is provided with elongated shallow grooves on both sides thereof in a middle area corresponding to the lead block, the core plate is in a long strip shape, and the shallow grooves are along a short side direction of the core plate and perpendicular to a sliding direction of the lead block.

5. The plate type lead damper according to claim 4, wherein the core plate is provided with first stoppers on both sides of the shallow groove in a long side direction, and the first stoppers abut against the outer sides of the stopper plates on the adjacent side.

6. The plate type lead damper according to claim 1, wherein the clamping plates are in a long strip shape, and both sides of the two clamping plates in the short side direction are closely connected by side plates.

7. The plate-type lead damper according to claim 6, wherein the clamping plate is provided with an L-shaped groove along the edge of the middle area corresponding to the lead block, the limiting plate is partially embedded and fixed in the L-shaped groove, and the part of the limiting plate higher than the L-shaped groove is propped against the core plate.

8. The plate type lead damper according to claim 7, wherein second limiting blocks are symmetrically arranged on the outer sides of the limiting plates on two sides of the clamping plates in the long-side direction, and the embedded grooves of the sealing structure are formed between the second limiting blocks and the limiting plates on the adjacent side.

9. The plate type lead damper according to claim 6, wherein the loading structure comprises a plurality of loading cross beams symmetrically arranged on two sides of the clamping plate structure, the loading cross beams extend along the short side direction of the clamping plate and are connected and fixed through side pull plates at two end parts, a high-strength screw rod for applying pre-compression to the lead block and the sealing structure is arranged on the loading cross beams along the direction perpendicular to the core plate, a hole for the high-strength screw rod to penetrate through is formed in the loading cross beams, a pre-welding nut is welded corresponding to the hole, and the high-strength screw rod is screwed into the pre-welding nut.

10. The plate-type lead damper according to claim 1, further comprising a backing plate structure symmetrically arranged on two sides of the clamping plate structure and provided with high-strength flat gaskets opposite to loading ends of the loading structure, wherein stiffening ribs are symmetrically arranged on two sides of the high-strength flat gaskets by the backing plate structure.

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