WO2020259023A1

WO2020259023A1 - Modular assembled vibration isolation platform

Info

Publication number: WO2020259023A1
Application number: PCT/CN2020/085222
Authority: WO
Inventors: 宋继萍; 林嘉祥
Original assignee: 厦门嘉达声学技术有限公司
Priority date: 2019-06-24
Filing date: 2020-04-17
Publication date: 2020-12-30
Also published as: CN111005976A

Abstract

A modular assembled vibration isolation platform, comprising vibration isolation modules (1), a load-bearing steel frame (2), connecting members (3), and height adjusting members (4). The vibration isolation modules (1) comprise different models and series of vibration isolation units of vibration isolation elements, mass blocks, and damping structures. The load center of each vibration isolation module (1) is consistent with the plane geometric center. One or more vibration isolation modules (1) are provided for one vibration source device. Each vibration isolation module (1) is disposed below and on one side of a vibration source device base (5) by means of the connecting member (3) and the load-bearing steel frame (2). Multiple vibration isolation modules (1) form, by means of the load-bearing steel frame (2) and connecting members (3), an overall vibration isolation platform for a large vibration source device and a common vibration isolation platform for multiple vibration source device. The optimal load of the multiple vibration isolation modules (1) is consistent with the load of the vibration source device. The overall vibration isolation module platform formed by multiple vibration isolation modules (1), the load-bearing steel frame (2), and connecting members (3) has sufficient rigidity, and can adjust the load borne by the vibration isolation modules (1) by means of the height adjustment members (4), and therefore is suitable for various complicated working conditions, is simple to install, and requires low costs for transformation.

Description

Modular assembly type vibration isolation platform

Technical field

The invention relates to a low-frequency vibration solid sound vibration isolation and noise reduction technology, in particular to a modular assembly type vibration isolation platform.

Background technique

Many electromechanical equipment is the source of vibration and noise in civil buildings. The vibration of the vibration source equipment is transmitted through the solid structure sound generated by the contact between the base of the vibration source equipment and the ground building. The important way to eliminate vibration hazards is to control the transmission of vibration by reducing the technology of vibration isolation. Vibration isolation is to isolate or reduce the transmission of vibration energy. An integral vibration isolation platform is set between the base of the vibration source equipment and the ground to prevent the vibration of the vibration source equipment from propagating to the solid structure of the building structure, so as to achieve the purpose of vibration isolation and noise reduction, which is one of the important ways to eliminate vibration hazards.

According to "Environmental Noise and Vibration Control Engineering Technical Guidelines" HJ 2034-2013 7.4.2 Vibration isolation design, 7.4.2.1 Vibration isolation design should be implemented in accordance with GB50463, GB10070, GB/T 50452 and JGJ/T170. 7.4.2.2 The vibration isolation design should also be carried out according to the following steps: a) Determine the required vibration transmission ratio (or vibration isolation efficiency) and the approximate load and center of gravity distribution; b) Determine the layout, load, and model of the vibration isolation components , Size and quantity; c) determine the static compression, frequency ratio and natural frequency of the vibration isolation system; d) check the vibration isolation parameters and estimate the noise reduction effect of the vibration isolation design. According to the regulations, vibration isolation design considers many factors, and the architectural design institute lacks vibration isolation designers. Therefore, equipment vibration isolation has become a difficulty in the current design work, which has caused many problems.

In actual engineering, when the load and center of gravity of the vibration source equipment are not uniformly distributed, it is difficult to ensure that each vibration isolation element is in the optimal load range by setting up an integral vibration isolation structure, which restricts the improvement of vibration isolation efficiency. Will form a vibration short circuit and cause vibration isolation failure. Especially in the case of the renovation of vibration isolation and noise reduction engineering, the large-scale integral vibration isolation structure does not have an effective transportation path and installation space.

Summary of the invention

The purpose of the present invention is to provide a modular assembly type vibration isolation platform, on the basis of the modularization and serialization of the vibration isolation pedestal, multiple vibration isolation pedestal modules are assembled into a large-scale vibration source through a load-bearing steel frame, a connecting member and a height adjustment member The overall equipment vibration isolation platform and the public vibration isolation platform of multiple vibration source equipment. Each vibration source equipment is equipped with two or more vibration isolation modules, which reduces the weight of the vibration isolation base, facilitates transportation and installation, simple installation and construction, and low renovation costs.

The technical solution adopted by the present invention to solve the technical problem is: a modular assembly type vibration isolation platform, which includes a vibration isolation module, a load-bearing steel frame, a connecting member and a height adjusting member. The vibration isolation module includes vibration isolation elements, masses, and damping structures of different models and series of vibration isolation units. The load center of the vibration isolation module is consistent with the plane geometric center; each vibration source device is equipped with one or more vibration isolation modules , The vibration isolation module is arranged on the lower part and side of the base of the vibration source equipment through the connecting member and the bearing steel frame; multiple vibration isolation modules form a large-scale vibration source equipment integral vibration isolation platform and multiple vibration source equipment through the bearing steel frame and connecting members The public vibration isolation platform, the optimal load of multiple vibration isolation modules is consistent with the load of the vibration source equipment, and the integral vibration isolation module platform formed by multiple vibration isolation modules, load-bearing steel frames, and connecting members has sufficient rigidity. The adjustment member adjusts the load borne by the vibration isolation module.

Vibration isolation module models include basic vibration isolation modules with primary vibration isolation technology <90%, secondary vibration isolation modules with secondary vibration isolation technology <95%, and secondary vibration isolation technology particle damping loss It can technically integrate composite vibration isolation modules with vibration isolation efficiency ≥ 95%. Under the premise of classifying the different parameters and spectrum characteristics of the vibration source equipment, set up passive control vibration isolation pedestals with different parameters. Different types of vibration isolation pedestals can meet the vibration isolation efficiency requirements of their respective vibration source equipment under the most severe working conditions. As a result, the vibration isolation design program is reduced. The designer selects the corresponding type of vibration isolation pedestal according to the parameters of the vibration source equipment and the characteristics of the frequency spectrum, forming a "dumb" vibration isolation design mode, which can solve the large amount of equipment vibration solid in civil buildings. The problem of noise propagation can also effectively improve the efficiency of vibration isolation design and reduce the installation cost of vibration isolation structures. Based on the classification and setting of different types of vibration isolation pedestals according to the characteristics of the vibration source, the vibration isolation pedestal is further modularized. The vibration isolation module includes a complete vibration isolation unit including vibration isolation elements, mass blocks, and damping structures. The load center of the vibration isolation module is consistent with the plane geometric center. The embedded structure is adopted to lower the center of mass of the vibration isolation module.

The series of vibration isolation modules are defined according to the working load of the vibration source equipment, and the load range has a level difference relationship. The series covers the working load range of the main vibration source equipment. The damping characteristics of the same series of vibration isolation modules and the elasticity of the built-in vibration isolation components The modulus is consistent. The vibration isolation modules in the series all have a certain load range, and at the same time there is a proportional margin crossing each other.

When the center of gravity of the load of the vibration source equipment is unevenly distributed, vibration isolation modules are intermittently arranged according to the center of gravity of the load of the vibration source equipment, and the distribution of multiple vibration isolation modules is consistent with the center of gravity distribution of the load of the vibration source equipment.

When the distance between the base of the vibration source equipment and the ground meets the height of the vibration isolation module, the vibration isolation module is arranged at the bottom of the base of the vibration source equipment. When the distance between the base of the vibration source equipment and the ground is not enough to set the vibration isolation module, the vibration isolation module is arranged on the side of the base of the vibration source equipment through the bearing steel frame and the connecting member. The overall vibration isolation module platform can be larger than the base of the vibration source equipment. The shape of the assembled public vibration isolation platform composed of multiple vibration isolation modules should be set according to the equipment distribution, including square, strip flat, T-shaped, L-shaped, U-shaped, back shape, etc.

The beneficial effects of the present invention are:

1. Reduce the workload of vibration isolation design, choose to install vibration isolation modules according to the effective load of the vibration source equipment and the requirements of vibration isolation efficiency, and apply various complex working conditions;

2. Each vibration source equipment is equipped with one or more vibration isolation modules to reduce the weight of the vibration isolation base and facilitate transportation and installation; especially in the case of vibration isolation and noise reduction engineering renovation, large-scale integrated vibration isolation structures have no effective transportation paths And installation space;

3. The vibration isolation module is produced and processed in the workshop, which is beneficial to improve product quality and ensure the efficiency of vibration isolation;

4. On-site assembly operations reduce the workload of on-site operations, which is beneficial to improve work efficiency, simple installation and construction, and low transformation costs;

5. Reduce construction waste at the construction site, so it is more environmentally friendly and meets the requirements of green buildings.

Description of the drawings

The present invention will be further described below in conjunction with the drawings and embodiments.

Fig. 1 is a side view of the structure of the first embodiment of the present invention.

Fig. 2 is a plan view of the structure of Fig. 1.

Fig. 3 is a side view of the structure of the second embodiment of the present invention.

Fig. 4 is a plan view of the structure of Fig. 3.

In the figure 1. Vibration isolation module, 2. Bearing steel frame, 3. Connection member, 4. Height adjustment member, 5. Vibration source equipment base, 6. Floor.

Detailed ways

In the first embodiment shown in Figures 1 and 2, a modular assembly type vibration isolation platform includes a vibration isolation module (1), a load-bearing steel frame (2), a connecting member (3) and a height adjustment member ( 4). The vibration isolation module (1) includes vibration isolation elements, masses, and damping structures of different models and series of vibration isolation units. The load center of the vibration isolation module (1) is consistent with the plane geometric center; each vibration source device is set One or more vibration isolation modules (1), the vibration isolation modules (1) are arranged on the lower part and side of the base of the vibration source equipment through the bearing steel frame (2) and the connecting members (3); multiple vibration isolation modules (1) pass the bearing The force steel frame (2) and the connecting members (3) constitute the overall vibration isolation platform of large-scale vibration source equipment and the common vibration isolation platform of multiple vibration source equipment, the optimal load of multiple vibration isolation modules (1) and the load of vibration source equipment Consistent, the integral vibration isolation module (1) platform formed by multiple vibration isolation modules (1), load-bearing steel frames (2), and connecting members (3) has sufficient rigidity, and the vibration isolation is adjusted by the height adjustment member (4) Load on module (1).

Vibration isolation module (1) models include basic vibration isolation modules with primary vibration isolation technology <90%, secondary vibration isolation modules with secondary vibration isolation technology <95%, and secondary vibration isolation technology Particle damping energy dissipation technology integrates composite vibration isolation modules with vibration isolation efficiency ≥ 95%.

The vibration isolation module (1) series is defined according to the working load of the vibration source equipment, and the load range has a level difference relationship. It forms a series covering the working load range of the main vibration source equipment. The same series of vibration isolation modules (1) Damping characteristics, the elastic modulus of the built-in vibration isolation element is consistent.

When the center of gravity distribution of the vibration source equipment load is unbalanced, the vibration isolation module (1) is intermittently arranged according to the center of gravity of the vibration source equipment load, and the distribution of multiple vibration isolation modules (1) is consistent with the center of gravity distribution of the vibration source equipment load.

When the distance between the vibration source equipment base (5) and the floor (6) meets the height of the vibration isolation module (1), the vibration isolation module (1) is set at the bottom of the vibration source equipment base (6) and the floor (6) between.

In the second embodiment shown in Figures 3 and 4, when the distance between the vibration source equipment base (5) and the ground (6) is not enough to set the vibration isolation module (1), the vibration isolation module (1) passes The bearing steel frame (2) and the connecting member (3) are arranged on the side of the base (5) of the vibration source equipment.

It should be understood that various changes can be made to the above-mentioned embodiments without departing from the scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

A modular assembly type vibration isolation platform, comprising a vibration isolation module, a load-bearing steel frame, a connecting member and a height adjustment member, and is characterized in that the vibration isolation module includes different models of vibration isolation elements, masses, and damping structures, For the series of vibration isolation units, the load center of the vibration isolation module is consistent with the plane geometric center; each vibration source device is equipped with one or more vibration isolation modules, and the vibration isolation module is set on the lower part of the vibration source equipment base through connecting members and load-bearing steel frames. Side; multiple vibration isolation modules form a large-scale vibration source equipment integral vibration isolation platform and a common vibration isolation platform for multiple vibration source equipment through load-bearing steel frames and connecting components, the optimal load of multiple vibration isolation modules and the load of the vibration source equipment Consistent, the integral vibration isolation module platform formed by multiple vibration isolation modules, load-bearing steel frames, and connecting members has sufficient rigidity, and the load on the vibration isolation module is adjusted by the height adjustment member.
The modular assembly type vibration isolation platform according to claim 1, characterized in that: the model of the vibration isolation module includes a basic vibration isolation module with a vibration isolation efficiency of less than 90% using primary vibration isolation technology, and a vibration isolation efficiency using secondary vibration isolation technology <95% secondary vibration isolation module and composite vibration isolation module with secondary vibration isolation technology particle damping energy dissipation technology integrated vibration isolation efficiency ≥ 95%.
The modular assembly type vibration isolation platform according to claim 1, characterized in that the load range of the vibration isolation module series has a step relationship, and the damping characteristics of the same series of vibration isolation modules are consistent with the elastic modulus of the built-in vibration isolation components.
The modular assembly type vibration isolation platform according to claim 1, wherein the distribution of the multiple vibration isolation modules is consistent with the center of gravity distribution of the load of the vibration source device.