Viscous damper structure

Abstract

The utility model belongs to the technical field of damping vibration attenuation, and particularly relates to a viscous damper structure which comprises a damping cylinder body, a viscoelastic damping body is arranged at the top of the damping cylinder body in a sealing mode, a viscous damping body is filled in the damping cylinder body, and a movable shaft body penetrates through the middle of the viscoelastic damping body. One end of the movable shaft body extends into the viscous damping body and is provided with a movable terminal; the movable shaft body is of a hollow structure and is internally provided with an adjusting shaft, one end of the adjusting shaft is provided with an adjusting disc abutting against the movable terminal, and the movable terminal and the adjusting disc are provided with damping adjusting holes which are aligned in a one-to-one mode. The viscoelastic damping body is made of a pouring type high-damping material, has excellent vibration reduction characteristic, waterproof performance and sealing characteristic and basically has no additional rigidity, and the viscous damping body is made of a liquid type high-damping material, and is excellent in damping function and simple in structure; and meanwhile, the size of the damping adjusting hole in the movable terminal can be adjusted by rotating the adjusting disc, so that the purpose of adjusting the damping is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of damping and vibration reduction, and in particular relates to a viscous damper structure. Background Art

[0002] The viscous damper is made based on the principle that fluid movement, especially when viscous liquid passes through a throttling hole, will produce throttling resistance. It is a damper related to the speed of piston movement and is widely used in high-rise buildings, bridges, seismic reconstruction of building structures, anti-vibration of industrial pipeline equipment, military industry and other fields. Its working principle is that the piston reciprocates in the cavity, squeezing the viscous damping liquid through the small oil holes on the piston or the gap between the piston and the inner wall of the cylinder, and converting the absorbed energy into heat energy for dissipation;

[0003] Most of the common viscous dampers on the market have defects such as complex structure, inconvenient installation or inability to adjust the damping size. They cannot meet actual usage requirements and need to be improved.

[0004] In order to solve the above problems, a viscous damper structure is proposed in the present application. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a viscous damper structure, which has the characteristics of simple structure and adjustable damping size.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a viscous damper structure, including a damping cylinder, a viscoelastic damping body is sealed on the top of the damping cylinder, the interior of the damping cylinder is filled with a viscous damping body, a movable shaft body passes through the middle of the viscoelastic damping body, one end of the movable shaft body extends into the viscous damping body and is provided with a movable terminal; the movable shaft body is a hollow structure and an adjusting shaft is provided inside, one end of the adjusting shaft is provided with an adjusting disk abutting against the movable terminal, and the movable terminal and the adjusting disk are provided with damping adjustment holes aligned one by one.

[0007] As a preferred viscous damper structure of the utility model, the damping cylinder body is a cylindrical structure or a square structure, and the damping cylinder body is a semi-enclosed structure with one end closed and the other end open.

[0008] As a preferred viscous damper structure of the utility model, the viscous damper body is liquid, and the movable shaft body and the viscoelastic damper body are in sealing cooperation.

[0009] As a preferred viscous damper structure of the utility model, an adjusting block is provided on the top of the adjusting shaft, and an avoidance groove for avoiding the adjusting block is provided on the top of the movable shaft body, and the length of the avoidance groove is greater than the length of the adjusting block.

[0010] As a preferred structure of the viscous damper of the utility model, the bottom of the adjusting shaft is sleeved with a sealing ring which is in sealing contact with the inner wall of the movable shaft body.

[0011] As a preferred structure of a viscous damper of the utility model, the damping cylinder and the movable shaft are both provided with a mounting plate at one end away from each other, and the mounting plate is provided with a mounting hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the viscoelastic damping body in the utility model is a poured high damping material, which has excellent vibration reduction, waterproof and sealing properties, and basically has no additional stiffness; the viscous damping body is a liquid high damping material, which has excellent damping function and simple structure; at the same time, by rotating the adjusting disk, the size of the damping adjustment hole on the movable terminal can be adjusted, thereby achieving the purpose of adjusting the damping size. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is an axonometric drawing of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 This is the first embodiment of the movable terminal in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the adjusting shaft in the utility model;

[0018] Figure 5 This is the second embodiment of the movable terminal in the utility model.

[0019] In the figure: 1. Damping cylinder body; 2. Viscoelastic damping body; 3. Viscous damping body; 4. Movable shaft body; 5. Movable terminal; 6. Adjusting shaft; 7. Adjusting disk; 8. Damping adjusting hole; 9. Adjusting block; 10. Avoidance groove; 11. Sealing ring; 12. Mounting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1 and Figure 2 As shown;

[0023] A viscous damper structure comprises a damping cylinder 1, a viscoelastic damping body 2 is sealed on the top of the damping cylinder 1, a viscous damping body 3 is filled inside the damping cylinder 1, a movable shaft 4 is passed through the middle of the viscoelastic damping body 2, one end of the movable shaft 4 extends into the viscous damping body 3 and is provided with a movable terminal 5; the movable shaft 4 is a hollow structure and an adjusting shaft 6 is provided inside, an adjusting disk 7 abutting against the movable terminal 5 is provided at one end of the adjusting shaft 6, and damping adjusting holes 8 aligned one by one are provided on the movable terminal 5 and the adjusting disk 7, the damping cylinder 1 is a cylindrical structure or a square structure, and the damping cylinder 1 is a semi-enclosed structure with one end closed and the other end open, the viscous damping body 3 is liquid, and the movable shaft 4 and the viscoelastic damping body 2 are sealed.

[0024] It should be noted that: in this embodiment, the viscoelastic damping body 2 is a pouring type high damping material. The raw material is in liquid state and can be mechanized for pouring. It has excellent fluidity in a small space, has no additional stiffness after curing, has excellent adhesion to the substrate, has an elongation greater than 300%, a damping loss factor greater than 0.6, and a wide temperature range, which is greater than 0.7 in the range of -20°C to 80°C.

[0025] It should be noted that in this embodiment, the viscoelastic damping body 2 is liquid-filled and poured into the damping cylinder 1 , and has excellent viscosity and certain fluidity, and excellent adhesion to the metal substrate.

[0026] In this embodiment: the viscoelastic damping body 2 is a cast high damping material, which has excellent vibration reduction, waterproof and sealing properties, and basically has no additional stiffness; the viscous damping body 3 is a liquid high damping material, which has excellent damping function and simple structure; at the same time, by rotating the adjustment disk 7, the size of the damping adjustment hole 8 on the movable terminal 5 can be adjusted, thereby achieving the purpose of adjusting the damping size.

[0027] like Figure 3 and Figure 4 As shown;

[0028] In an optional embodiment, an adjusting block 9 is provided at the top of the adjusting shaft 6, and an avoidance groove 10 for avoiding the adjusting block 9 is provided at the top of the movable shaft body 4. The length of the avoidance groove 10 is greater than the length of the adjusting block 9, and a sealing ring 11 is provided at the bottom of the adjusting shaft 6 and is sealed against the inner wall of the movable shaft body 4.

[0029] In this embodiment: when the adjustment disk 7 is completely aligned with the damping adjustment hole 8 on the movable terminal 5, the damping is minimum at this time, and the adjustment block 9 can be rotated to drive the adjustment shaft 6 to rotate, and the adjustment shaft 6 drives the adjustment disk 7 to rotate, and the upper and lower groups of damping adjustment holes 8 are misaligned with each other, so that the damping adjustment hole 8 on the movable terminal 5 is reduced, thereby achieving the purpose of adjusting the damping.

[0030] In an optional embodiment, a mounting plate 12 is provided at the ends of the damping cylinder 1 and the movable shaft 4 that are away from each other, and a mounting hole is provided on the mounting plate 12 .

[0031] In this embodiment, the mounting plate 12 is a plate-type flange structure, which can be a top-mounted type or a side-mounted type, and is flexible and convenient to install.

[0032] like Figure 5 As shown;

[0033] In an optional embodiment, the movable terminal 5 is a piston structure, which is completely immersed in the viscous damping body 3. The movable terminal 5 can be a round pancake structure, a square structure, a flat structure, or a basket structure.

[0034] It should be noted that when there is no gap between the movable terminal 5 and the inner wall of the damping cylinder 1, the movable shaft 4 can only be retracted in a single vertical direction. When there is a certain gap between the movable terminal 5 and the inner wall of the damping cylinder 1, the movable shaft 4 can swing in multiple directions, which can actually be adjusted according to needs.

[0035] The working principle and use process of the utility model are as follows: the viscous damping body 3 is poured into the damping cylinder body 1, one end of the movable shaft body 4 is connected to the movable terminal 5 and passes through the viscoelastic damping body 2, one end of the adjusting shaft 6 is provided with an adjusting block 9 and passes through the middle of the movable shaft body 4, at this time the adjusting block 9 is in contact with the movable terminal 5, and then the injection-molded viscoelastic damping body 2 is fixed on the top of the damping cylinder body 1 to complete the assembly, and the installation and use can be realized by using the mounting plate 12; when the adjusting disk 7 is completely aligned with the damping adjustment hole 8 on the movable terminal 5, the damping is minimum at this time, rotating the adjusting block 9 can drive the adjusting shaft 6 to rotate, and the adjusting shaft 6 drives the adjusting disk 7 to rotate, so that the damping adjustment hole 8 on the movable terminal 5 is reduced, so as to achieve the purpose of adjusting the damping.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A viscous damper structure, comprising a damping cylinder (1), characterized in that: The top of the damping cylinder (1) is sealed with a viscoelastic damping body (2), the interior of the damping cylinder (1) is filled with a viscous damping body (3), a movable shaft (4) penetrates the middle of the viscoelastic damping body (2), one end of the movable shaft (4) extends into the viscous damping body (3) and is provided with a movable terminal (5); The movable shaft body (4) is a hollow structure and is provided with an adjustment shaft (6) inside. One end of the adjustment shaft (6) is provided with an adjustment disk (7) that abuts against the movable terminal (5). The movable terminal (5) and the adjustment disk (7) are provided with damping adjustment holes (8) that are aligned one by one.

2. The viscous damper structure according to claim 1, characterized in that: The damping cylinder body (1) is a cylindrical structure or a square structure, and the damping cylinder body (1) is a semi-enclosed structure with one end closed and the other end open.

3. The viscous damper structure according to claim 2, characterized in that: The viscous damping body (3) is liquid, and the movable shaft body (4) and the viscoelastic damping body (2) are in sealed cooperation.

4. The viscous damper structure according to claim 3, characterized in that: An adjusting block (9) is provided at the top of the adjusting shaft (6), and an avoidance groove (10) for avoiding the adjusting block (9) is provided at the top of the movable shaft body (4), wherein the length of the avoidance groove (10) is greater than the length of the adjusting block (9).

5. The viscous damper structure according to claim 4, characterized in that: The bottom of the adjusting shaft (6) is sleeved with a sealing ring (11) which is in sealing contact with the inner wall of the movable shaft body (4).

6. The viscous damper structure according to claim 5, characterized in that: The resistance The cylinder body (1) and the movable shaft body (4) are both provided with a mounting plate (12) at the ends away from each other. The mounting plate (12) is provided with a mounting hole.

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