Combined vibration reduction bolt device structure

Abstract

The utility model relates to the technical field of vibration reduction bolts, and discloses a combined vibration reduction bolt device structure which comprises a nut head and a screw assembly installed at the bottom of the nut head, and the screw assembly is provided with energy dissipation elements, an inner cylinder assembly between the energy dissipation elements and an outer cylinder assembly located on the outer sides of the energy dissipation elements. The damping bolt has the advantages of being convenient to disassemble, assemble and install, a plurality of different energy consumption elements can be arranged according to needs, so that the bearing capacity and the energy consumption condition of the damping bolt are changed, the bearing capacity and the energy consumption capacity of the damping bolt can be adjusted and optimized according to specific needs, and the damping requirements in different scenes are met. The vibration reduction bolt device can reduce the vibration response of equipment under the action of earthquakes, wind vibration or other power, the vibration reduction capacity of the equipment is improved, and the safety of the equipment and property is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a damping bolt technical field, concretely is a combined damping bolt device structure. BACKGROUND

[0002] Earthquake is a kind of phenomenon of the earth's surface crust movement, with huge energy release and vibration effect. Earthquake vibration can produce impact, vibration and displacement to equipment and structure, thereby causing the damage, fracture, tilt or failure of equipment. Therefore, considering the influence of earthquake on equipment and carrying out corresponding damping design is an important consideration factor to ensure the safe operation of equipment.

[0003] The damping design of equipment aims at improving the resistance and toughness of equipment to cope with the impact and vibration caused by earthquake. This includes making equipment have enough rigidity, strength and stability by reasonable structure design, material selection and installation mode to withstand the power brought by earthquake vibration. Damping design also includes considering the dead weight and running load of equipment, vibration absorption and damping measures to reduce the influence of earthquake on equipment.

[0004] The equipment is fixed to the ground by bolt, and the common bolt cannot adjust and optimize the bearing capacity and energy dissipation capacity of damping bolt, resulting in poor overall rigidity and stability. Therefore, we launch a combined damping bolt device structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a combined damping bolt device structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A combined damping bolt device structure, comprising a nut head and a screw rod assembly installed at the bottom of the nut head, the screw rod assembly is provided with an inner cylinder assembly between energy dissipation elements and an outer cylinder assembly outside the energy dissipation elements;

[0008] The outer cylinder assembly is installed outside the inner cylinder assembly and is used to limit the radial displacement of energy dissipation elements relative to the screw rod assembly.

[0009] The screw rod assembly is also screwed with a limiting nut assembly, the limiting nut assembly is used to separate energy dissipation elements, and when energy dissipation elements produce axial relative displacement relative to the screw rod assembly, the displacement energy dissipation of energy dissipation elements is used to reduce vibration.

[0010] Preferably, the screw rod assembly comprises an upper screw rod screwed at the bottom of the nut head and a lower screw rod integrally connected to the bottom of the upper screw rod, and the diameter of the upper screw rod is smaller than that of the lower screw rod.

[0011] Preferably, the energy dissipation element comprises an upper energy dissipation piece and a lower energy dissipation piece mounted on the upper screw rod in an up-down manner, and the upper energy dissipation piece and the lower energy dissipation piece are of the same size.

[0012] The limiting nut assembly comprises a plurality of groups of limiting nuts screwed on the upper screw rod, and the plurality of groups of limiting nuts are respectively located between the upper energy dissipation piece and the lower energy dissipation piece and the upper end of the upper energy dissipation piece.

[0013] Preferably, the upper energy dissipation piece and the lower energy dissipation piece are made of rubber material, and the upper energy dissipation piece and the lower energy dissipation piece are fixed to the outer side of the upper screw rod by welding, bonding or inlaying.

[0014] Preferably, the inner cylinder assembly comprises an upper inner cylinder located between the upper energy dissipation piece and the lower energy dissipation piece and a lower inner cylinder located at the lower end of the lower energy dissipation piece, and the limiting nuts between the upper energy dissipation piece and the lower energy dissipation piece are located inside the upper inner cylinder, and the lower inner cylinder is sleeved on the outer side of the lower screw rod.

[0015] Preferably, the outer cylinder assembly comprises an upper outer cylinder and a lower outer cylinder, the upper outer cylinder is fixed to the outer side of the upper end of the upper inner cylinder, and the lower outer cylinder is fixed to the outer side of the lower end of the upper inner cylinder and the outer side of the upper end of the lower inner cylinder.

[0016] The inner diameters of the upper outer cylinder and the lower outer cylinder are consistent, the outer diameters of the upper inner cylinder and the lower inner cylinder are consistent, and the inner diameters of the upper outer cylinder and the lower outer cylinder are greater than the outer diameters of the upper energy dissipation piece and the lower energy dissipation piece.

[0017] Compared with the prior art, the damping bolt device can reduce the vibration response of the equipment under the action of earthquake, wind vibration or other dynamic force, improve the damping capacity of the equipment, and protect the safety of the equipment and property. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first three-dimensional structure schematic view of the whole utility model;

[0019] Figure 2 It is a second three-dimensional structure schematic view of the whole utility model;

[0020] Figure 3 It is a sectional structure schematic view of the whole utility model;

[0021] Figure 4 It is a three-dimensional structure schematic view of the whole utility model Figure 3 It is a three-dimensional structure schematic view of the whole utility model

[0022] In the figure: 1, nut head; 2, upper screw rod; 3, upper outer cylinder; 4, upper inner cylinder; 5, lower outer cylinder; 6, first locking nut; 7, lower inner cylinder; 8, lower screw rod; 9, second locking nut; 10, limiting nut; 11, upper energy dissipation element; 12, lower energy dissipation element. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment:

[0025] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0026] The combined damping bolt device structure comprises a nut head 1 and a screw rod assembly installed at the bottom of the nut head 1, the screw rod assembly comprises an upper screw rod 2 screwed at the bottom of the nut head 1 and a lower screw rod 8 integrally connected to the bottom of the upper screw rod 2, and the diameter of the upper screw rod 2 is smaller than the diameter of the lower screw rod 8.

[0027] The screw rod assembly is provided with energy dissipation elements, an inner cylinder assembly between the energy dissipation elements and an outer cylinder assembly located outside the energy dissipation elements.

[0028] The energy dissipation elements comprise upper energy dissipation elements 11 and lower energy dissipation elements 12 installed above and below the outer side of the upper screw rod 2, and the upper energy dissipation elements 11 and the lower energy dissipation elements 12 are consistent in size.

[0029] The upper energy dissipation elements 11 and the lower energy dissipation elements 12 are both made of rubber material, and the upper energy dissipation elements 11 and the lower energy dissipation elements 12 are fixed on the outer side of the upper screw rod 2 by welding, bonding or inlaying.

[0030] The inner cylinder assembly comprises an upper inner cylinder 4 located between the upper energy dissipation elements 11 and the lower energy dissipation elements 12 and a lower inner cylinder 7 located at the lower end of the lower energy dissipation elements 12, the limiting nut 10 between the upper energy dissipation elements 11 and the lower energy dissipation elements 12 is located on the inner side of the upper inner cylinder 4, and the lower inner cylinder 7 is sleeved on the outer side of the lower screw rod 8.

[0031] The bottom outer side of the lower inner cylinder 7 is further screwed with a first locking nut 6, and the bottom outer side of the lower screw rod 8 is further screwed with a second locking nut 9.

[0032] The outer cylinder assembly includes an upper outer cylinder 3 and a lower outer cylinder 5, and the cross section of the upper outer cylinder 3 and the lower outer cylinder 5 is circular or polygonal to meet the installation requirements. The upper outer cylinder 3 is fixed to the outer upper part of the upper inner cylinder 4, and the lower outer cylinder 5 is fixed to the outer lower part of the upper inner cylinder 4 and the outer upper part of the lower inner cylinder 7;

[0033] The inner diameter of the upper outer cylinder 3 and the lower outer cylinder 5 is consistent, the outer diameter of the upper inner cylinder 4 and the lower inner cylinder 7 is consistent, and the inner diameter of the upper outer cylinder 3 and the lower outer cylinder 5 is greater than the outer diameter of the upper energy dissipation member 11 and the lower energy dissipation member 12, so that the upper outer cylinder 3 and the lower outer cylinder 5 can slide relative to the upper energy dissipation member 11 and the lower energy dissipation member 12.

[0034] The outer cylinder assembly is installed outside the inner cylinder assembly to limit the radial displacement of the energy dissipation member relative to the screw rod assembly;

[0035] The screw rod assembly is also screwed with a limiting nut assembly, and the limiting nut assembly includes a plurality of sets of limiting nuts 10 screwed on the upper screw rod 2. The plurality of sets of limiting nuts 10 are respectively located between the upper energy dissipation member 11 and the lower energy dissipation member 12 and the upper end of the upper energy dissipation member 11.

[0036] The limiting nut assembly is used to separate the energy dissipation members, and when the energy dissipation members produce axial relative displacement relative to the screw rod assembly, the displacement energy dissipation of the energy dissipation members reduces vibration.

[0037] The damping bolt device has the advantages of convenient disassembly, combination and installation, can set the damping energy dissipation effect under multiple requirements as needed, and the energy dissipation member can be replaced separately.

[0038] There can be multiple energy dissipation members, and the number of the inner cylinder assembly and the outer cylinder assembly is adjusted to adjust the energy dissipation mechanism of the damping bolt under the earthquake. In the case of small yield force requirement, one energy dissipation member can be used, and in the case of high load capacity and energy dissipation requirement, the length of the outer cylinder assembly, the limiting nut 10 and the screw rod assembly is increased, and multiple energy dissipation members are added to meet the load capacity and energy dissipation requirements of the damping bolt.

[0039] In the earthquake or other vibration environment, the device can absorb and disperse impact force and vibration, thereby effectively reducing the influence of the earthquake or wind vibration on the equipment.

[0040] The damping bolt has the advantages of easy installation, good damping effect, small space occupation, no need to change the main structure construction method, and convenient maintenance.

[0041] The sleeve is composed of the outer cylinder assembly and the inner cylinder assembly, thereby limiting the movement of the outer edge of the energy dissipation member, the nut limiting nut can limit the movement of the inner edge of the energy dissipation member, and the relative sliding of the outer cylinder assembly, the inner cylinder assembly and the limiting nut, the screw rod assembly can shear the energy dissipation member.

[0042] In the earthquake or other vibration environment, the damping bolt can absorb and disperse the impact force and vibration, thereby effectively reducing the influence of the earthquake or wind vibration on the equipment. Through the device, the damping / seismic / wind resistance performance of the equipment is improved, and the safety margin of the supporting facilities can also be increased. The structure of the device is relatively simple, and is easy to popularize and apply. It can be adjusted and optimized according to specific requirements to meet the damping requirements in different scenes.

[0043] The connection mode between the components of the damping device is firm and reliable, and the damping device can effectively play a damping and anti-seismic role in a vibration environment.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A combined vibration damping bolt device structure, comprising a nut head and a screw assembly mounted at the bottom of the nut head, characterized in that: The screw assembly is provided with an energy-consuming element, an inner cylinder assembly between the energy-consuming element, and an outer cylinder assembly located outside the energy-consuming element. The outer cylinder assembly is installed outside the inner cylinder assembly to limit the radial displacement of the energy-consuming element relative to the screw assembly; A limiting nut assembly is also screwed onto the screw assembly. The limiting nut assembly is used to separate the energy-consuming element and to reduce vibration by dissipating energy through the displacement of the energy-consuming element when the energy-consuming element undergoes axial relative displacement relative to the screw assembly.

2. The structure of the combined vibration damping bolt device according to claim 1, characterized in that: The screw assembly includes an upper screw screwed to the bottom of the nut head and a lower screw screw integrally formed and connected to the bottom of the upper screw screw, wherein the diameter of the upper screw screw is smaller than the diameter of the lower screw screw.

3. The structure of the combined vibration damping bolt device according to claim 2, characterized in that: The energy-consuming element includes an upper energy-consuming component and a lower energy-consuming component installed on the outer side of the upper screw, and the upper energy-consuming component and the lower energy-consuming component have the same size; The limiting nut assembly includes several sets of limiting nuts screwed onto the upper screw, with the sets of limiting nuts located between the upper and lower energy-consuming components and at the upper end of the upper energy-consuming component.

4. The structure of the combined vibration damping bolt device according to claim 3, characterized in that: Both the upper and lower energy-consuming components are made of rubber and are fixed to the outside of the upper screw by welding, bonding, or embedding.

5. The structure of the combined vibration damping bolt device according to claim 3, characterized in that: The inner cylinder assembly includes an upper inner cylinder located between the upper energy-consuming component and the lower energy-consuming component, and a lower inner cylinder located at the lower end of the lower energy-consuming component. The limiting nut between the upper energy-consuming component and the lower energy-consuming component is located inside the upper inner cylinder, and the lower inner cylinder is sleeved on the outside of the lower screw.

6. The structure of the combined vibration damping bolt device according to claim 5, characterized in that: The outer cylinder assembly includes an upper outer cylinder and a lower outer cylinder. The upper outer cylinder is fixed to the upper outer side of the upper inner cylinder, and the lower outer cylinder is fixed to the lower outer side of the upper inner cylinder and the upper outer side of the lower inner cylinder. The upper outer cylinder and the lower outer cylinder have the same inner diameter, and the upper inner cylinder and the lower inner cylinder have the same outer diameter. Furthermore, the inner diameter of the upper outer cylinder and the lower outer cylinder is larger than the outer diameter of the upper energy-consuming component and the lower energy-consuming component.

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