CN212744837U

CN212744837U - Adjustable friction viscous fluid composite damper

Info

Publication number: CN212744837U
Application number: CN202021242830.2U
Authority: CN
Inventors: 郭有松
Original assignee: Jiangsu Gongbang Zhenkong Technology Co ltd
Current assignee: Jiangsu Gongbang Zhenkong Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-19
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to an adjustable friction viscous fluid composite damper belongs to attenuator preparation technical field. The piston assembly comprises a front sealing plug, a rear sealing plug, a piston rod and a movable piston, wherein the front sealing plug and the rear sealing plug are fixedly connected to two ends of the oil cylinder, and the middle part of the piston rod is fixedly sleeved with a disc-shaped movable piston; the rear end of the oil cylinder is fixedly connected with a hollow damping enhancement pipe, a cylindrical friction layer is coaxially sleeved in the inner cavity of the hollow damping enhancement pipe, and the friction layer is fixed by a plurality of vertically symmetrical adjustable screws; the rear end of the piston rod is fixedly connected with a cylindrical friction block, the friction block is positioned in the inner cavity of the hollow damping reinforcing pipe, and the outer edge of the friction block is in contact with the inner wall of the friction layer.

Description

Adjustable friction viscous fluid composite damper

Technical Field

The utility model relates to an adjustable friction viscous fluid composite damper belongs to attenuator preparation technical field.

Background

Viscous dampers are currently a type of stiffness, velocity dependent damper that is made based on the principle that fluid movement, particularly when fluid passes through an orifice, creates viscous drag. The method is widely applied to the fields of high-rise buildings, bridges, building structure seismic reconstruction, industrial pipeline equipment seismic resistance, military industry and the like. In the actual work of the damper, the damping force of most dampers is small, and the actual work requirement is difficult to meet, but the existing dampers do not realize the function of increasing the damping force.

In addition, most of the existing dampers adopt a damper with invariable damping, which cannot meet the requirements of various frequent vibration occasions, has certain defects in structure and design, cannot well meet the requirements of modern society, and partially realizes the damping change by changing one section of inner diameter of the oil cylinder, so the design and manufacturing cost is high, and once a fault occurs, the oil cylinder can only be integrally replaced, the maintenance cost is increased, and the requirement of social development cannot be well met.

In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create an adjustable friction viscous fluid composite damper, which has industrial application value.

Disclosure of Invention

In order to solve the technical problem, the present invention provides an adjustable friction viscous fluid composite damper. The utility model discloses an adjustable friction viscous fluid composite damper is through addding the clutch blocks at the afterbody of piston rod, and establish the damping reinforcing pipe at hydro-cylinder afterbody cover, set up the one deck frictional layer on the damping reinforcing pipe inner wall, still set up adjustable screw at the upper and lower part symmetry of frictional layer and fix it, make the clutch blocks of piston rod afterbody when the inside removal of damping reinforcing pipe with frictional layer contact friction, thereby produce frictional resistance, utilize this frictional damping power to be the reinforcing power of viscous fluid damping power, thereby the damping power of attenuator has effectively been improved, and then make the range of application of attenuator enlarge, and adjustable screw's setting, when making the adjustable screw of screwing to inside, can increase the frictional force between clutch blocks and the frictional layer, finally realize the adjustability of damping power, wide application prospect has.

The utility model relates to an adjustable friction viscous fluid composite damper, which comprises a front pin head, an oil cylinder and a rear pin head,

the oil cylinder is movably inserted with a piston assembly, the piston assembly comprises a front sealing plug, a rear sealing plug, a piston rod and a movable piston, the front sealing plug and the rear sealing plug are fixedly connected to two ends of the oil cylinder, and the middle part of the piston rod is fixedly sleeved with a disc-shaped movable piston;

the rear end of the oil cylinder is fixedly connected with a hollow damping enhancement pipe, a cylindrical friction layer is coaxially sleeved in the inner cavity of the hollow damping enhancement pipe, and the friction layer is fixed by a plurality of vertically symmetrical adjustable screws; the rear end of the piston rod is fixedly connected with a cylindrical friction block, the friction block is positioned in the inner cavity of the hollow damping reinforcing pipe, and the outer edge of the friction block is in contact with the inner wall of the friction layer.

Furthermore, the oil cylinder is of a cylindrical structure with two through ends.

Furthermore, the outer diameter of the movable piston is smaller than the inner diameter of the oil cylinder, and an annular through hole is formed between the movable piston and the oil cylinder and used for the viscous liquid to pass through.

Furthermore, the movable piston is arranged in the inner cavity of the oil cylinder and can move back and forth in the inner cavity of the oil cylinder.

Furthermore, two ends of the piston rod respectively penetrate through the front sealing plug and the rear sealing plug and extend to the outside of the oil cylinder.

Furthermore, the front end of the piston rod is fixedly connected with the front pin head.

Furthermore, the hollow damping reinforcing pipe is cylindrical and is fixed at the rear end of the oil cylinder through welding.

Furthermore, the rear end of the hollow damping reinforcing pipe is fixedly connected with the rear pin head.

Further, the movable piston divides the oil cylinder inner cavity into a first oil cavity and a second oil cavity.

Further, the friction layer is made of phenolic resin materials, and the friction block is made of asbestos materials.

By the scheme, the invention at least has the following advantages:

the utility model discloses an adjustable friction viscous fluid composite damper is through addding the clutch blocks at the afterbody of piston rod, and establish the damping reinforcing pipe at hydro-cylinder afterbody cover, set up the one deck frictional layer on the damping reinforcing pipe inner wall, still set up adjustable screw at the upper and lower part symmetry of frictional layer and fix it, make the clutch blocks of piston rod afterbody when the inside removal of damping reinforcing pipe with frictional layer contact friction, thereby produce frictional resistance, utilize this frictional damping power to be the reinforcing power of viscous fluid damping power, thereby the damping power of attenuator has effectively been improved, and then make the range of application of attenuator enlarge, and adjustable screw's setting, when making the adjustable screw of screwing to inside, can increase the frictional force between clutch blocks and the frictional layer, finally realize the adjustability of damping power, wide application prospect has.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of the adjustable friction viscous fluid composite damper of the present invention;

wherein, in the figure,

1. a front pin head;

2. an oil cylinder; 21. a first oil chamber; 22. a second oil chamber;

3. a damping enhancement tube;

4. a piston assembly; 41. a movable piston; 42. a front sealing plug; 43. a rear sealing plug; 44. a through hole; 45. a piston rod;

5. a friction layer;

6. a friction block;

7. a rear pin head;

8. an adjustable screw.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1, a preferred embodiment of the present invention provides an adjustable friction viscous fluid composite damper, which includes a front pin head 1, an oil cylinder 2 and a rear pin head 7, wherein the oil cylinder 2 is a cylindrical structure with two through ends. Still mobilizable grafting in the hydro-cylinder 2 has piston assembly 4, piston assembly 4 includes preceding sealing plug 42, back sealing plug 43, piston rod 45 and moves piston 41, preceding sealing plug 42 and back sealing plug 43 fixed connection are at 2 both ends of hydro-cylinder, the fixed cover in piston rod 45 middle part is equipped with the piston 41 that moves of a disc, move piston 41 and cut apart into first oil pocket 21 and second oil pocket 22 with 2 inner chambers of hydro-cylinder. The movable piston 41 is arranged in the inner cavity of the oil cylinder 2 and can move back and forth in the inner cavity of the oil cylinder 2, the outer diameter of the movable piston 41 is smaller than the inner diameter of the oil cylinder 2, and an annular through hole 44 is formed between the movable piston and the oil cylinder for the viscous liquid to pass through; the two ends of the piston rod 45 respectively penetrate through the front sealing plug 42 and the rear sealing plug 43 and extend to the outside of the oil cylinder 2. The front end of the piston rod 45 is fixedly connected with the front pin head 1. The rear end of the oil cylinder 2 is fixedly connected with a hollow damping reinforcing pipe 3, and the hollow damping reinforcing pipe 3 is cylindrical and fixed at the rear end of the oil cylinder 2 through welding. The rear end of the hollow damping reinforcing pipe 3 is fixedly connected with a rear pin head 7. A cylindrical friction layer 5 is coaxially sleeved in the inner cavity of the hollow damping enhancement pipe 3, and the friction layer 5 is fixed by 4 adjustable screws 8 which are symmetrical up and down; the rear end of the piston rod 45 is fixedly connected with a friction block 6, the friction block 6 is positioned in the inner cavity of the hollow damping enhancement tube 3, the outer edge of the friction block 6 is in contact with the inner wall of a friction layer 5, the friction layer 5 is made of phenolic resin materials, and the friction block 6 is made of asbestos materials.

The working principle of the utility model is as follows:

the utility model discloses adjustable friction viscous fluid composite damper is when the in-service use, through pulling front pin 1 drive piston rod 45 and move left, move piston 41 and move left together when piston rod 45 moves, pass through the through-hole 44 extrusion entering second cavity 22 with the viscous liquid in the first cavity 21, utilize the viscous force that the viscous liquid flow produced to produce damping force, simultaneously at the terminal friction block 6 of piston rod 45 along with piston rod 45 together, and carry out the contact friction with frictional layer 5 of hollow damping reinforcing pipe 3 inner wall, thereby produce frictional damping force, further strengthen the damping force of attenuator, when the frictional damping force that needs to adjust the increase, realize through rotatory adjustable screw 8, when outwards rotating adjustable screw 8, the frictional force between friction block 6 and frictional layer 5 will reduce, thereby reduce the damping force, when inwards rotating adjustable screw 8, the friction force between the friction block 6 and the friction layer 5 is increased, so that the damping force is increased, the adjustability of the damping force is realized, and the application prospect is wide.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an adjustable friction viscous fluid composite damper, includes preceding round pin head (1), hydro-cylinder (2) and back round pin head (7), its characterized in that:

the oil cylinder (2) is movably inserted with a piston assembly (4), the piston assembly (4) comprises a front sealing plug (42), a rear sealing plug (43), a piston rod (45) and a movable piston (41), the front sealing plug (42) and the rear sealing plug (43) are fixedly connected to two ends of the oil cylinder (2), and the middle part of the piston rod (45) is fixedly sleeved with the disc-shaped movable piston (41);

the rear end of the oil cylinder (2) is fixedly connected with a hollow damping enhancement pipe (3), a cylindrical friction layer (5) is coaxially sleeved in the inner cavity of the hollow damping enhancement pipe (3), and the friction layer (5) is fixed by a plurality of adjustable screws (8) which are symmetrical up and down; the rear end of the piston rod (45) is fixedly connected with a cylindrical friction block (6), the friction block (6) is positioned in the inner cavity of the hollow damping enhancement pipe (3), and the outer edge of the friction block (6) is in contact with the inner wall of the friction layer (5).

2. The adjustable friction viscous fluid composite damper of claim 1, wherein: the oil cylinder (2) is of a cylindrical structure with two through ends.

3. The adjustable friction viscous fluid composite damper of claim 1, wherein: the outer diameter of the movable piston (41) is smaller than the inner diameter of the oil cylinder (2), and an annular through hole (44) is formed between the movable piston and the oil cylinder and used for the viscous liquid to pass through.

4. The adjustable friction viscous fluid composite damper of claim 1, wherein: the movable piston (41) is arranged in the inner cavity of the oil cylinder (2) and can move back and forth in the inner cavity of the oil cylinder (2).

5. The adjustable friction viscous fluid composite damper of claim 1, wherein: and two ends of the piston rod (45) respectively penetrate through the front sealing plug (42) and the rear sealing plug (43) and extend to the outside of the oil cylinder (2).

6. The adjustable friction viscous fluid composite damper of claim 1, wherein: the front end of the piston rod (45) is fixedly connected with the front pin head (1).

7. The adjustable friction viscous fluid composite damper of claim 1, wherein: the hollow damping reinforcing pipe (3) is cylindrical and is fixed at the rear end of the oil cylinder (2) through welding.

8. The adjustable friction viscous fluid composite damper of claim 1, wherein: the rear end of the hollow damping reinforcing pipe (3) is fixedly connected with the rear pin head (7).

9. The adjustable friction viscous fluid composite damper of claim 1, wherein: the movable piston (41) divides the inner cavity of the oil cylinder (2) into a first oil cavity (21) and a second oil cavity (22).

10. The adjustable friction viscous fluid composite damper of claim 1, wherein: the friction layer (5) is made of phenolic resin materials, and the friction block (6) is made of asbestos materials.