Friction type damper

Abstract

The invention relates to the technical field of dampers, in particular to a friction type damper which comprises a mounting plate, the mounting plate comprises an upper mounting plate and a lower mounting plate, fixing boxes are symmetrically arranged on the lower mounting plate, and a fixing plate is movably arranged in each fixing box; friction plates are fixedly connected to the sides, close to each other, of the two fixing plates respectively, a center plate is arranged between the two friction plates, and the upper portion of the center plate is connected with an upper mounting plate. And the two fixed boxes are connected through a screw rod. When the building shakes, shaking of the building can be relieved through friction damping.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dampers, in particular to a friction type damper. BACKGROUND

[0002] A friction damper is a device that converts mechanical energy into heat energy using friction, mainly used for shock absorption, vibration reduction and damping. Its working principle is to generate friction force through the relative displacement between the friction disc and the friction mechanism, thereby consuming the energy in the vibration or movement process and reducing the vibration response of the structure. A friction damper is usually composed of a friction disc and a friction mechanism, and the size of the friction force can be controlled by the pressure between the friction disc and the friction mechanism. The greater the pressure, the greater the friction force, and the more obvious the damping effect. Therefore, friction dampers are widely used in building structures, especially in seismic design. Friction dampers are widely used in building structures, especially in seismic design. They can effectively consume the energy input by earthquakes and reduce the response of structures under the action of earthquakes. Friction dampers have simple structure, stable performance, and low maintenance cost, so they have been widely used in modern buildings.

[0003] The overall structure of the commonly used friction damper is generally two steel plates clamping and fixing the friction material. When the device is used for a long time, the surface of the friction material will inevitably be worn, which will affect the energy absorption effect of the device as a whole. At present, the replacement method often needs to disassemble the whole device and then replace the friction material. Frequent replacement is troublesome to operate. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a friction type damper which can effectively alleviate the sway of the building and does not need to frequently replace the friction material.

[0005] The technical solution adopted by the application to solve the technical problems is: A friction type damper, comprising a mounting plate, the mounting plate comprising an upper mounting plate and a lower mounting plate, the lower mounting plate being symmetrically provided with a fixed box, and a fixed plate being movably arranged in each fixed box; the side of each fixed plate close to the other fixed plate is fixedly connected with a friction plate, and a center plate is arranged between the two friction plates, the upper side of the center plate being connected with the upper mounting plate; the two fixed boxes are connected by a screw rod.

[0006] Compared with the prior art, the application has the following advantages: The application sets a center plate and friction plates between the two fixed boxes. Through the cooperation of the center plate and the two friction plates, the sway of the building can be alleviated by friction damping when the building sways.

[0007] As a preferred embodiment, the further technical solution of the application is: Preferably, two screw rods are arranged, and the friction plate and the fixed plate are respectively provided with a clearance hole corresponding to the position of each screw rod, and the center plate is respectively provided with a hole slot corresponding to the position of each screw rod.

[0008] Preferably, the top of each fixed plate is respectively provided with a plurality of guide blocks, and the top of each fixed box is provided with a guide slot corresponding to the guide block on the fixed block.

[0009] Preferably, the adjusting assembly further comprises a guide frame, the guide frame is a U-shaped structure, two ends of the guide frame respectively penetrate the fixed box and are in sliding connection with the fixed box, and the two ends of each guide frame are respectively connected with a push plate inside the fixed box on the side, and each push plate is respectively arranged outside the fixed plate.

[0010] Preferably, the outer side of each fixed box is respectively provided with a threaded sleeve, the inner side of each threaded sleeve is respectively in threaded connection with a screw rod, and the end of the screw rod away from the threaded sleeve penetrates the guide frame and is in rotational connection with the guide frame.

[0011] Preferably, the end of each screw rod away from the threaded sleeve is respectively provided with a rotating handle, and the rotating handle is arranged outside the guide frame on the side. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the side cross-sectional structure of the application; Figure 3 It is a schematic diagram of the Figure 2 It is an enlarged schematic diagram of the structure at A of the application; Figure 4 It is a schematic diagram of the top cross-sectional structure of the application; Figure 5 It is a schematic diagram of the disassembled structure of the friction plate of the application; The reference signs are as follows: 1, upper mounting plate; 2, lower mounting plate; 3, fixed box; 4, fixed plate; 5, friction plate; 6, center plate; 7, guide slot; 8, guide block; 9, hole slot; 10, screw rod; 11, rotating handle; 12, clearance hole; 13, guide frame; 14, push plate; 15, threaded sleeve; 16, adjusting screw rod. DETAILED DESCRIPTION

[0013] The application will be further described below in combination with specific embodiments, and the purpose is only to better understand the content of the application, therefore, the examples do not limit the protection scope of the application.

[0014] The utility model relates to a kind of friction type damper, including mounting plate and adjusting assembly, mounting plate is made of upper mounting plate 1 and lower mounting plate 2, and two fixed boxes 3 are symmetrically arranged on lower mounting plate 2 left and right, and there is a certain spacing between the two fixed boxes 3.The inside of each fixed box 3 is movably provided with fixed plate 4, and the side close to each other of two fixed plate 4 is respectively fixedly connected with friction plate 5, and center plate 6 is arranged between two friction plate 5, and the top of center plate 6 is fixedly connected with upper mounting plate 1.

[0015] Two fixed boxes 3 are connected by screw rod 10, specifically, two screw rods 10 are provided, and the positions of friction plate 5 and fixed plate 4 corresponding to screw rod 10 are respectively provided with let-out circular hole 12, and the positions of center plate 6 corresponding to each screw rod 10 are respectively provided with hole slot 9, screw rod 10 penetrates two fixed boxes 3 through let-out circular hole 12 and hole slot 9, and is locked by nut.

[0016] In the embodiment, the top of each fixed plate 4 is respectively spaced apart a plurality of guide blocks 8, and the top of each fixed box 3 is respectively provided with a guide groove adapted to the guide block 8 on the fixed block corresponding thereto, and the guide groove provides guidance to the guide block 8 through the sliding arrangement of the guide block 8 when the fixed plate 4 moves, further ensuring the stable movement of the fixed block.

[0017] The adjusting assembly is composed of two guide frames 13, and the two guide frames 13 are respectively arranged outside the two fixed boxes 3, each guide frame 13 is in U-shaped structure, and the two end heads of each guide frame 13 respectively penetrate the fixed box 3 on the side thereof and slide relative to the fixed box 3; the inside of each fixed box 3 is respectively provided with a push plate 14, and the push plate 14 is arranged outside the fixed plate 4, and the two end heads of each guide frame 13 are respectively fixedly connected with the push plate 14 on the side thereof.

[0018] Each fixed box 3 is respectively fixedly connected with a threaded sleeve 15, the inside of each threaded sleeve 15 is respectively threadedly connected with one end of an adjusting screw rod 16, the other end of the adjusting screw rod 16 penetrates the guide frame 13 on the side thereof and extends to the outside of the guide frame 13, and the adjusting screw rod 16 is rotatably connected with the guide frame 13.

[0019] The end of each adjusting screw rod 16 away from the threaded sleeve 15 is respectively provided with a rotating handle 11, and the rotating handle 11 is arranged outside the guide frame 13 on the side thereof.

[0020] In the application, the upper and lower mounting plates 2 are respectively fixed with the building structure, the center plate 6 is clamped between the two friction plates 5, then the screw rod 10 is inserted from the right fixed box 3, and the left fixed box 3 is penetrated out, and then the nut is locked outside the left fixed box 3, at this time, the screw rod 10 will pass through the let-out circular hole 12 and the hole slot 9, when the building structure shakes, the center plate 6 and the friction plate 5 can cooperate to provide friction damping, and the damping effect is achieved.

[0021] When the device is used for a long time, the surface of the friction plate 5 will inevitably be worn, at which time the matching friction force between the friction plate 5 and the center plate 6 will be reduced, affecting the normal use of the device, at which time the adjusting screw 16 can be screwed into the inside of the screw sleeve by rotating the rotating handle 11, the guide frame 13 is stably moved towards the fixed plate 4, and the fixed plate 4 is extruded by the push plate 14, at which time the fixed plate 4 is moved along the guide groove towards the center plate 6 through the cooperation of the guide block 8 and the guide groove, until the two friction plates 5 clamp the center plate 6, without frequent replacement of the friction plate 5.

[0022] In the embodiment, the friction plate 5 is a thickened friction plate 5, and the push plate 14 is made of rubber.

[0023] The center plate and the two thickened friction plates can alleviate the shaking of the building through friction damping when the building shakes, the adjusting assembly can facilitate the pushing of the friction plate towards the position of the center plate, the thickened friction plate is thick as a whole, which can make it more wear-resistant, and the thickened friction plate does not need to be frequently disassembled and maintained.

[0024] The above only describes the preferred embodiments of the present application, and does not limit the scope of the present application, and any equivalent changes made by applying the content of the specification and the drawings of the present application are included in the scope of the present application.

Claims

1. A friction damper, comprising a mounting plate, characterized in that; The mounting plate includes an upper mounting plate and a lower mounting plate. The lower mounting plate has symmetrically arranged fixing boxes, and each fixing box has a fixing plate that is movably installed inside. Friction plates are fixedly connected to the sides of the two fixing plates that are close to each other. A center plate is arranged between the two friction plates, and the top of the center plate is connected to the upper mounting plate. The two fixing boxes are connected by screws.

2. The friction damper according to claim 1, characterized in that: There are two screws. The friction plate and the fixing plate are respectively provided with clearance holes for each screw. The center plate is respectively provided with slots for each screw.

3. The friction damper according to claim 1, characterized in that: Each fixed plate has several guide blocks spaced apart on its top, and each fixed box has a guide groove on its top that matches the guide block on its corresponding fixed block.

4. The friction damper according to claim 1, characterized in that: It also includes an adjustment component, which includes a guide frame. The guide frame has a U-shaped structure. The two ends of the guide frame pass through the fixed box and slide with the fixed box. The two ends of each guide frame are connected to the push plate inside the fixed box on its side. Each push plate is placed on the outside of the fixed plate.

5. The friction damper according to claim 4, characterized in that: Each fixed box is equipped with a threaded sleeve on its outer side, and an adjusting screw is threadedly connected inside each threaded sleeve. The end of the adjusting screw away from the threaded sleeve passes through the guide frame and is rotatably connected to the guide frame.

6. The friction damper according to claim 5, characterized in that: Each adjusting screw has a rotating handle at the end furthest from the threaded sleeve, and the rotating handle is located on the outside of the guide frame on its side.

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