CN211622089U - Rotary amplification type viscous damping wall - Google Patents

Abstract

The utility model discloses a rotary amplification type viscous damping wall, which belongs to the technical field of structural shock absorption. The rotary amplified viscous damping wall includes action mechanism, closed box, rotating shaft, large gear, pinion, square piston, square piston side steel plate, sliding guide, damping medium, seal, PTFE, etc. The action mechanism and the closed box are constrained by the structural components connected up and down, and are forced to move relative to each other. When the action mechanism moves, the external gear of the action mechanism drives the pinion to rotate, so it drives the rotating shaft to rotate, so that the closed box is moved. The large gear in the box rotates with it, and the large gear meshes with the square piston inner plate gear in the square piston, and the damping medium in the closed box is forced to pass through the damping hole, thereby generating damping energy consumption. The utility model has a simple structure and can quickly reduce the vibration response of the structure. Because the shape is wall-type and the thickness can be the same as that of the partition wall of the building, the use of the building can not be affected when the structure is set.

Description

A rotary-amplifying viscous damping wall

technical field

The invention relates to the technical field of structural shock absorption, in particular to a rotary amplification type viscous damping wall.

Background technique

Earthquakes have occurred in many countries around the world, including some major earthquakes, such as the Tangshan earthquake in China, the San Francisco earthquake in California, and the Hanshin earthquake in Japan. The safety of people's lives and property. With the rapid development of my country's economic level, there are more and more high-rise buildings and some super-high-rise special buildings, and higher requirements are put forward for the safety performance of houses. Therefore, the seismic performance of buildings is particularly important. The damping wall can consume the seismic energy, protect the beams and columns from being damaged, improve the seismic performance of the whole structure, increase the ductility of the building, and reduce the damage to the house caused by the earthquake.

The traditional viscous group Ni wall mainly consumes seismic energy through the bonding force generated by the damping medium and the shear plate surface. The size of the bonding force is mainly related to the material of the damping medium, so the bonding performance of the damping medium material will directly affect the energy dissipation performance of the damping wall. The traditional viscous damping wall is to add a relatively viscous damping inside the wall. Medium, insert a shear plate into the wall, the upper end of the shear plate is connected with the upper structural beam of the wall, when an earthquake occurs, the movement of the upper structural beam forces the shear plate to move left and right in the wall filled with damping medium, Therefore, the viscous force generated by the damping medium and the surface of the shear plate can consume the seismic energy and reduce the damage to the structure caused by the earthquake. However, this method also has shortcomings. First of all, the damping force of the damping wall is generated by the bonding force between the damping medium and the surface of the shear plate. Under the action of a large earthquake, the generated damping force is not large enough, the pressure in the container is not high, and the seismic consumption is not enough. The energy effect is not obvious, and the contact surface between the shear plate and the upper end of the wall is rectangular. At present, it is easy to handle the sealing of the round hole, but it is difficult to seal the contact surface of the rectangle. The amplitude affects the cohesive force between the shear plate surface and the damping medium, thus affecting the seismic energy dissipation performance.

CN109594684A "A high-pressure transmission type viscous damping wall" This patent introduces a damping wall, which includes a closed box, an action mechanism, an end shearing plate, an inner shearing plate, a rotating shaft, a damping hole, a guide rail, etc. Composition, the closed box is fitted with the action mechanism, and the action mechanism is connected with the upper structural beam. The damping wall mainly relies on the inner shear plate and the end shear plate to move left and right in the closed box, and the damping medium passes through the inner shear plate. The damping force is generated with the damping hole of the end shear plate to dissipate the seismic energy. However, under the action of a large earthquake, the damping force generated by the damping medium through the damping holes of the end shear plates and the inner shear plates is not enough, and the number of the end shear plates and the inner shear plates and the damping holes are large, making it difficult to manufacture. Therefore, the device has deficiencies in structure and design. However, the rotary enlarged viscous damping wall effectively solves these shortcomings. The rotating shaft is provided with a large gear inside the closed box and a small gear outside the closed box. The radius of the large gear on the rotating shaft is larger than the radius of the pinion. When the rotating shaft rotates, the linear displacement generated by the large gear under the same angular velocity is larger, which plays an amplifying role and can generate a larger damping force, and the damping medium can generate a jet through the damping hole, which can increase the damping force, and the square There is no shear plate in the piston, which is more convenient to manufacture. Therefore, the rotary amplified viscous damping wall can generate a larger damping force, thereby reducing the seismic input energy more effectively.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a rotary amplified viscous damping wall with simple structure and increased damping force, which can increase the effect of consuming seismic energy and improve the seismic performance and ductility of the structure. In the present invention, the damping medium flows and sprays from the damping holes between the square piston steel plates on both sides, and the damping medium fills the entire closed box. The effect of energy dissipation and shock absorption.

A rotary enlarged viscous damping wall, which includes a large gear, a small gear, a damping medium, a damping hole, a square piston side steel plate, a sliding guide rail, a closed box, a polytetrafluoroethylene, an action mechanism, a square piston inner plate, a rotary Shaft, square piston inner plate gear, seal, action mechanism outer gear, square piston, square piston top steel plate, square piston bottom steel plate, characterized in that the upper end of the action mechanism is connected with the bottom of the structural beam, and the lower end of the action mechanism is provided with an outer gear of the action mechanism, And it meshes with the pinion on the rotating shaft. When the action mechanism moves horizontally relative to the closed box, it drives the rotating shaft to rotate. The square piston side steel plate and the square piston inner plate are welded, and the square piston inner plate is on the square piston inner plate. The gear meshes with the big gear, and when the big gear rotates, it drives the square piston to move horizontally. A damping hole is set between the steel plates on the side of the square piston. The damping medium in the closed box is forced to flow and spray from the damping hole, and the sliding guide is connected to the square piston. .

The upper part of the action mechanism is connected with the bottom of the structural beam, and its function is to prevent the action mechanism from falling off the closed box and ensure that the action mechanism can move along the horizontal direction. The lower surface of the action mechanism is provided with an outer gear of the action mechanism, and the outer gear of the action mechanism meshes with the pinion on the rotating shaft, the function of which is to prevent the action mechanism from moving up and down. The top plate of the closed box rests on the steps of the action mechanism, and polytetrafluoroethylene is provided on the plane and side contact surfaces of the resting place to reduce the friction between the closed box and the action mechanism. The upper part of the closed box is connected with the changing section of the action mechanism. When the action mechanism moves, the rotating shaft rotates, and the rotation of the rotating shaft drives the square piston to move only in the horizontal direction. The rotating shaft passes through the closed box and is a solid or hollow steel round tube. The rotating shaft is provided with a large gear inside the closed box and a small gear outside the closed box. The radius of the large gear on the rotating shaft is significantly larger than that of the pinion. Radius, its function is that when the rotating shaft rotates, the linear displacement generated by the large gear at the same angular velocity is larger, which plays an amplifying role and can generate a larger damping force. The rotating shaft has a smooth circular section at the side wall of the closed box, and its function is that the sealing of the circular section is easy to handle, and a seal can be set there to prevent the damping medium in the closed box from overflowing. The square piston includes the square piston side steel plate, the square piston top steel plate, the square piston bottom steel plate, the damping hole, the rotating shaft and the square piston inner plate. There is a certain gap between the square piston side steel plate and the inner side wall of the closed box. There is a certain gap between the top of the inner wall of the box, and PTFE is set between the steel plate on the top of the square piston and the top of the inner wall of the closed box to reduce the friction between the square piston and the top of the inner wall of the closed box . Teflon is arranged between the steel plate at the bottom of the closed box and the guide rail to reduce the friction between the square piston and the guide rail during movement. A number of damping circular holes are arranged between the steel plates on the side of the square piston. The damping medium is silicone oil, which fills the entire closed box. The gap between the top steel plate of the square piston and the top of the inner wall of the closed box is very small. Its function is to prevent the internal damping of the closed box. The medium flows over the square piston, try to make the damping medium in the closed box flow and spray preferentially from the damping hole to generate jet flow, thereby generating damping force, and the internal pressure of the closed box will increase, which will increase the damping force. The large gear on the rotating shaft in the closed box meshes with the square piston inner plate gear on the square piston inner plate, and the square piston only moves in the horizontal direction. A concave sliding guide is arranged at the bottom of the closed box, the concave sliding guide is welded with the closed box, the large gear meshes with the gear on the inner plate of the square piston, and the side wall of the sliding guide catches the square piston. So that the square piston will not move left and right, but will only move in the horizontal direction.

After the above structure is adopted, the upper end of the action mechanism is connected to the bottom of the structural beam, and the lower end of the closed box is connected to the upper part of the structural beam. The outer gear of the action mechanism drives the pinion to rotate, so that the rotating shaft is driven, and the large gear on the rotating shaft in the closed box meshes with the square piston inner plate gear on the inner plate of the square piston, so that the square piston is horizontal in the closed box. exercise. There is a gap between the square piston and the top of the inner wall of the closed box, and polytetrafluoroethylene is arranged between the square piston and the top of the inner wall of the closed box to reduce friction between the square piston and the top of the inner wall of the closed box. A plurality of damping holes are arranged between the steel plates on the side of the square piston, which will make the damping medium in the closed box flow preferentially from the damping holes to generate jets, thereby generating damping force, and the internal pressure of the closed box will increase, which will produce a greater damping force. A concave sliding guide is arranged at the bottom of the closed box, the side wall of the sliding guide is stuck on the square piston, and the large gear meshes with the inner plate gear of the square piston, which can ensure that the square piston only moves in the horizontal direction. The bottom of the sliding rail is welded with the closed box.

In addition, the present invention has a simple structure and can quickly reduce the vibration response of the structure. Because the shape is wall-type and the thickness can be the same as that of the partition wall of the building, the use of the building can not be affected when the structure is set. The use of this rotary amplified viscous damping wall seal is easy to handle, and can generate larger damping force, better shock absorption effect, higher safety factor, high structural durability, and can be used for a long time.

The working process of the above rotary amplified viscous damping wall is as follows:

When the earthquake acts, the action mechanism 9 is forced to move relative to each other due to the constraints of the structural components connected up and down, thereby driving the rotating shaft 11 to rotate, and the large gear 1 meshes with the square piston inner plate gear 12 in the square piston, so that the The square piston 15 moves in the horizontal direction. Since the gap between the square piston 15 and the top of the inner wall of the closed box 7 is small, the damping holes 4 are arranged between the steel plates 5 on the side of the square piston. The damping medium 3 will preferentially flow into the jet from the damping hole 4 to generate a jet flow, thereby generating a damping force. Since the damping medium 3 fills the entire closed box 7, when the square piston 15 moves in the closed box 7, the compressed cavity The fluid pressure increases, forcing the damping medium 3 to flow from the damping hole 4, thereby generating a greater damping force. The bottom of the closed box 7 is provided with a concave sliding guide 6. Since the sliding guide 6 is stuck on both sides of the square piston 15, the large gear 1. Engage with the square piston inner plate gear 12 in the square piston to ensure that the square piston 15 only moves in the horizontal direction.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the technical description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Figure 1 is an overall schematic diagram of a rotary enlarged viscous damping wall;

Figure 2 is a schematic diagram of the movement direction of the damping medium;

Figure 3 is a schematic diagram of the movement direction of the action structure;

Figure 4 is a schematic diagram of the action structure and the closed box body preventing falling off;

Figure 5 is a schematic diagram of the movement of the shear plate inside the box;

Figure 6 is a sectional view of the guide rail;

FIG. 7 is a schematic diagram of the seal of the contact surface between the rotating shaft and the casing;

8 is a schematic diagram of a guide rail;

Figure 9 is a schematic diagram of a gear;

Figure 10 is a schematic diagram of a rotating shaft;

Figure 11 is a schematic diagram of a damping hole;

Figure 12 is a schematic diagram of a square piston;

In Figures 1 to 12, 1 is a large gear; 2 is a pinion; 3 is a damping medium; 4 is a damping hole; 5 is a square piston side steel plate; 6 is a sliding guide; 7 is a closed box; 9 is the action mechanism; 10 is the inner plate of the square piston; 11 is the rotating shaft; 12 is the gear of the inner plate of the square piston; 13 is the seal; 14 is the outer gear of the action mechanism; 15 is the square piston; 16 is the top of the square piston Steel plate; 17 is the steel plate at the bottom of the square piston.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic diagram of the overall structure of a rotary enlarged viscous damping wall according to the present invention. As shown in Figure 1, the rotary amplified viscous damping wall mainly includes a large gear 1, a pinion 2, a square piston side steel plate 5, a sliding guide 6, a closed box 7, an action mechanism 9, a square piston inner plate 10, a rotating Shaft 11, square piston inner plate gear 12, action mechanism outer gear 14, square piston 15, square piston top steel plate 16, square piston bottom steel plate 17, etc. The closed box 7 is filled with damping medium 3, and the large gear 1 can drive the square The square piston inner plate gear 12 in the piston rotates, so that the square piston 15 moves back and forth in the horizontal direction. In view of the lack of high pressure of various types of viscous damping walls in the prior art, the sealing of non-circular holes is difficult to handle. Once the damping medium overflows, In view of the problem that the damping force may be reduced and the safety of the engineering structure is greatly affected, the present invention provides an improved method for the rotary amplified viscous damping wall, so as to realize the sealing and easy handling, and the larger the generation in the box. Damping force, the construction steps are as follows: (1) Prefabricated the action mechanism 9 in the factory, paste a piece of PTFE 8 on the upper surface of the steps on the two side plates of the action mechanism, and make the lower end of the action mechanism to form the outer gear of the action mechanism 14. (2) Prepare six steel plates in advance, and reserve damping holes 4 in the steel plates on both sides. A hole (3) is reserved on the surface of the front and rear steel plates to weld the square piston inner plate gear 12 and the square piston side steel plate 5 into a whole, and the damping hole 4 and the square piston side steel plate 5 are welded into a whole. A layer of Teflon 8 is pasted on the surface of the steel plate on the top of the square piston. (4) Weld the large gear 1, the pinion 2 and the rotating shaft 11, and pass them into the reserved hole in the side plate in step 2, and weld the upper, lower, left, and right steel plates and the front steel plates, and leave the rear steel plates temporarily unwelded. (5) Weld the prefabricated sliding guide 6 with the closed box, pass the other side plate of the temporary stay through the other side of the rotating shaft 11, and adjust the position, and finally connect the temporary back side steel plate with the other five The steel plates are welded into a whole. (6) The damping medium 3 is added to the closed box 7 . (7) Embed the prefabricated action mechanism 9 and the closed box 7 into a whole.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention, and are also applicable to other damping walls, and any modifications made within the spirit and principles of the present invention , equivalent replacements and improvements, etc., should all be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a viscous damping wall of rotatory amplification formula, it includes gear wheel (1), pinion (2), damping medium (3), damping hole (4), square piston side steel sheet (5), sliding guide (6), closed box (7), polytetrafluoroethylene (8), running gear (9), square piston inner panel (10), rotation axis (11), square piston inner panel gear (12), sealing member (13), running gear outer gear (14), square piston (15), square piston top steel sheet (16), square piston bottom steel sheet (17), its characterized in that: the upper end of a moving mechanism (9) is connected with the bottom of a structural beam, an outer moving mechanism gear (14) is arranged at the lower end of the moving mechanism (9) and is meshed with a pinion (2) on a rotating shaft (11), when the moving mechanism (9) moves horizontally relative to a closed box body (7), the rotating shaft (11) is driven to rotate, square piston side steel plates (5) are welded with square piston inner plates (10), square piston inner plate gears (12) on the square piston inner plates (10) are meshed with a large gear (1), the large gear (1) drives a square piston (15) to move horizontally when rotating, damping holes (4) are formed between the square piston side steel plates (5), damping media (3) in the closed box body (7) are forced to flow and jet from the damping holes (4), and a sliding guide rail (6) is connected with the square piston (15).

2. A rotary amplified viscous damping wall according to claim 1, characterized in that: the upper part of the action mechanism (9) is connected with the bottom of the structural beam, the lower part of the action mechanism is provided with an action mechanism external gear (14), and the action mechanism external gear (14) is meshed with the pinion (2) on the rotating shaft (11).

3. A rotary amplified viscous damping wall according to claim 1, characterized in that: the upper top plate of the closed box body (7) is placed on the step of the action mechanism (9), and polytetrafluoroethylene (8) is arranged on the plane and the side contact surface of the place where the top plate is placed.

4. A rotary amplified viscous damping wall according to claim 1, characterized in that: the rotary shaft (11) penetrates through the closed box body (7) and is a solid or hollow steel round pipe, the radius of the rotary shaft (11) in the closed box body (7) is obviously larger than that of the rotary shaft in the outside, the rotary shaft (11) is provided with a large gear (1) in the closed box body (7), a small gear (2) is arranged outside the closed box body (7), the rotary shaft (11) is provided with a smooth round section in the side wall of the closed box body (7), and a sealing piece (13) is arranged in the section.

5. A rotary amplified viscous damping wall according to claim 1, characterized in that: the square piston (15) comprises square piston side steel plates (5), square piston top steel plates (16), square piston bottom steel plates (17), damping holes (4), a rotating shaft (11) and square piston inner plates (10), the damping holes (4) are arranged between the square piston side steel plates (5), square piston inner plate gears (12) are arranged on the upper surfaces of the square piston inner plates (10), and the square piston inner plate gears (12) are meshed with the large gears (1).

6. A rotary amplified viscous damping wall according to claim 1, characterized in that: the bottom of the sliding guide rail (6) is fixed at the lower end of the closed box body (7), and the top of the sliding guide rail is connected with the square piston (15).

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