Shearing compound type damper

Abstract

The utility model relates to the technical field of dampers, and discloses a shear composite damper which comprises an upper movable end and a lower fixed end, the upper movable end is inserted into the lower fixed end, friction plates are arranged in gaps in the two sides of the upper movable end and the lower fixed end, and the friction plates are connected with the upper movable end and the lower fixed end. The shear pin vertically penetrates through the side faces of the lower fixed end and the upper movable end and is used for resisting energy released by an earthquake. According to the shear compound type damper, through cooperative arrangement of the upper movable end, the friction plate, the shear pin and the lower fixed end, internal friction damping can be better achieved when the damper is used, the overall yield force of the damper can be improved through arrangement of the shear pin, abrasion of a friction material is reduced, and the service life of the friction material is prolonged; the performance of the damper is more stable, and the damper can be better used according to existing scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a shear composite damper. Background Art

[0002] After a conventional friction damper encounters an earthquake, the damper friction material will be worn to varying degrees, and the corresponding damper performance will also decay to varying degrees. At this time, the damper needs to be tested. If the damper performance decays too much, it needs to be replaced, which increases the cost.

[0003] Chinese patent announcement number CN101787752A discloses a shear-extrusion composite lead damper, wherein the upper and lower cover plates provided with a connecting mechanism have intermittently corresponding strip grooves with semicircular cross-sections on the opposite surfaces thereof, a partition is provided in each pair of the above-mentioned grooves, and the two sides of the partition are respectively provided with hemispherical protrusions symmetrical with the partition, the upper and lower end surfaces of the above-mentioned partition contacting the upper and lower cover plates are semi-cylindrical end surfaces corresponding to the strip grooves of the upper and lower cover plates, the above-mentioned partition plate and the left and right end surfaces of the upper and lower cover plates are provided with screw holes, and the mild steel side plates are respectively provided with through holes corresponding to the screw holes on the side surfaces of the partition plate and the upper and lower cover plates, and the fasteners provided in the screw holes connect the upper and lower cover plates, the partition plate and the side plates into a box-shaped body with a plurality of unit spaces therein, and the upper cover plate corresponding to each unit space is provided with a through hole for filling lead, and a lead block is provided in the unit space. The present invention is made of ordinary steel, lead and a small amount of mild steel, has a simple structure, is easy to process, has high energy consumption, and has a high practical application value.

[0004] However, the utility model has the following problems when actually used:

[0005] The utility model cannot reduce the wear of the internal friction material when the overall device is in use, resulting in a limited service life of the friction material, which requires regular inspection and replacement, which not only increases the cost of use, but also fails to ensure the stability of the damper performance. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides a shear composite damper, which solves the problem in the prior art that the damper as a whole cannot reduce the wear of the internal friction material when in use, resulting in a limited service life of the friction material and an inability to ensure the stability of the damper performance;

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical solutions: a shear composite damper, including an upper movable end and a lower fixed end, characterized in that: the upper movable end is inserted into the interior of the lower fixed end, friction plates are arranged in the gaps on both sides of the upper movable end and the lower fixed end, and a shear pin vertically penetrates the side surfaces of the lower fixed end and the upper movable end to resist the energy released by an earthquake. The upper movable end includes an upper top plate, and an insert plate is fixedly connected below the upper top plate. The thickness of the insert plate is less than the distance between the two clamping plates, and there are long strip deformation holes and pin holes on the insert plate.

[0010] Optionally, the lower fixed end includes a lower base plate and a clamping plate, and the clamping plates are two pieces, which are respectively fixed to two sides of the lower fixed end by fixing bolts.

[0011] Optionally, the clamping plate is provided with a bolt hole and a pin hole, and the fastening bolt passes through the bolt hole to fasten the clamping plate.

[0012] Optionally, the friction plates are two pieces, each of which has a bolt hole and a pin hole.

[0013] (III) Beneficial effects

[0014] The utility model provides a shear composite damper, which has the following beneficial effects:

[0015] The shear composite damper, through the coordinated arrangement of the upper movable end, the friction plate, the shear pin and the lower fixed end, can achieve better internal friction shock absorption when the device is used. The shear pin can be arranged to increase the overall yield force of the damper, reduce the wear of the friction material, and increase the service life of the friction material. The two friction plates can increase the docking area between the parts, making the damper performance more stable, and can be better used according to existing scenarios, greatly reducing the damage to the device caused by an earthquake. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the upper movable end of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the lower fixed end of the utility model;

[0020] Figure 5 This is a schematic diagram of the friction plate structure of the utility model;

[0021] In the figure: 1. upper movable end; 101. upper top plate; 102. insert plate; 103. deformation hole; 104. pin hole; 2. lower fixed end; 201. lower bottom plate; 202. clamping plate; 203. bolt hole; 3. shear pin; 4. friction plate; 5. fixing bolt; 6. tightening bolt. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-2 The utility model provides a technical solution: a shear composite damper, including an upper movable end 1 and a lower fixed end 2, the upper movable end 1 includes an upper top plate 101, an insert plate 102 is fixedly connected or movably connected below the upper top plate 101, the lower fixed end 2 includes a lower bottom plate 201 and two clamping plates 202, the two clamping plates 202 are fixed to both sides of the lower fixed end 2 by a plurality of fixing bolts 5, the thickness of the inserting plate 102 is less than the distance between the two clamping plates 202, the inserting plate 102 is plugged into the two clamping plates 20 2, a gap of 1-10mm is reserved on both sides of the insertion plate 102 for inserting the friction plate 4. The two friction plates 4 work simultaneously to increase the friction force when subjected to force. The shear pin 3 vertically penetrates the side surfaces of the lower fixed end 2 and the upper movable end 1. When an earthquake occurs and the energy released by the earthquake is less than the yield point of the shear pin 3, the shear pin 3 plays a role in resisting the energy released by the earthquake; when the energy released by the earthquake is greater than the yield point of the shear pin 3, the shear pin 3 is sheared off, and energy consumption is achieved through the friction contact between the friction material and the upper movable end 1 and the clamping plate 202.

[0024] See also Figure 3-5There are deformation holes 103 and pin holes 104 on the insert plate 102. The deformation holes 103 are long strips up and down, which are convenient for the insert plate 102 to move up and down when subjected to the external force of an earthquake. There are bolt holes 203 and pin holes 104 on the clamping plate 202, bolt holes 203 and pin holes 104 on the friction plate 4, and bolt holes 203 and pin holes 104 on the friction plate 4. There are preferably 4 fastening bolts 6, which penetrate the clamping plate 202, the friction plate 4, and the insert plate 102 through the bolt holes 203 to play a fastening role. There are preferably two shear pins 3, which vertically penetrate the clamping plate 202, the friction plate 4, and the insert plate 102. When in use, first tighten the fastening bolts 6 to a certain degree so that the friction plate 4 and the upper movable end 1 and the clamping plate 202 are subjected to a certain friction force. When an earthquake occurs, if it is a small earthquake, the friction force at this time can offset the energy of the earthquake; when the friction force cannot offset the energy of the earthquake, and the energy released by the earthquake is less than the yield point of the shear pin 3, the shear pin 3 plays a role in resisting the energy released by the earthquake; when the energy released by the earthquake is greater than the yield point of the shear pin 3, the shear pin 3 is sheared off, and at this time, the friction between the friction plate 4 and the upper movable end 1 and the clamping plate 202 continues to consume energy.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shear composite damper, comprising an upper movable end (1) and a lower fixed end (2), characterized in that: The upper movable end (1) is inserted into the interior of the lower fixed end (2), and friction plates (4) are arranged in the gaps on both sides of the upper movable end (1) and the lower fixed end (2). The shear pin (3) vertically penetrates the side surfaces of the lower fixed end (2) and the upper movable end (1) to resist the energy released by an earthquake. The upper movable end (1) comprises an upper top plate (101), and an insert plate (102) is fixedly connected below the upper top plate (101). The thickness of the insert plate (102) is less than the distance between the two clamping plates (202), and the insert plate (102) is provided with a long strip deformation hole (103) and a pin hole (104).

2. A shear composite damper according to claim 1, characterized in that: The lower fixed end (2) comprises a lower base plate (201) and a clamping plate (202). The clamping plate (202) consists of two pieces, which are respectively fixed to two sides of the lower fixed end (2) by fixing bolts (5).

3. A shear composite damper according to claim 2, characterized in that: The clamping plate (202) is provided with a bolt hole (203) and a pin hole (104), and a fastening bolt (6) passes through the bolt hole (203) and penetrates the clamping plate (202).

4. A shear composite damper according to claim 1, characterized in that: The friction plate (4) is composed of two pieces, and a bolt hole (203) and a pin hole (104) are provided on the friction plate (4).

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