Vibration isolation and noise reduction device and air pump component with same
阅读说明:本技术 一种隔振降噪装置及带有该隔振降噪装置的气泵构件 (Vibration isolation and noise reduction device and air pump component with same ) 是由 张彦军 马军 田涛 宋振兴 石梅生 于 2020-08-03 设计创作,主要内容包括:本发明提供一种隔振降噪装置及带有该隔振降噪装置的气泵,该隔振降噪装置设有底板和安装在底板上的隔振降噪机构,隔振降噪机构包括安装法兰以及穿套于安装法兰周边的多个固定杆和套装在固定杆上的圆柱弹簧,固定杆固定在底板上,安装法兰滑动穿套在固定杆上,圆柱弹簧的上端固定在固定杆的上部、下端固定连接安装法兰,且安装法兰与底板之间有间距。本发明通过隔振降噪机构支撑气泵,圆柱弹簧以固定杆为支撑导向机构,圆柱弹簧具有较小的刚性和较好的伸缩性,具有更好的纵向振动的隔振效果;安装法兰的圆形通槽内设置有环形弹性垫,使得气泵的水平方向的振动由于环形弹性垫的缓冲而减弱,实现降噪的效果。(The invention provides a vibration isolation and noise reduction device and an air pump with the same, wherein the vibration isolation and noise reduction device is provided with a bottom plate and a vibration isolation and noise reduction mechanism arranged on the bottom plate, the vibration isolation and noise reduction mechanism comprises an installation flange, a plurality of fixing rods penetrating and sleeving the periphery of the installation flange and cylindrical springs sleeved on the fixing rods, the fixing rods are fixed on the bottom plate, the installation flange penetrates and sleeves the fixing rods in a sliding manner, the upper ends of the cylindrical springs are fixed on the upper parts of the fixing rods, the lower ends of the cylindrical springs are fixedly connected with the installation flange. The air pump is supported by the vibration isolation and noise reduction mechanism, the cylindrical spring takes the fixed rod as the support guide mechanism, and the cylindrical spring has smaller rigidity and better flexibility and has better vibration isolation effect of longitudinal vibration; the circular through groove of the mounting flange is internally provided with the annular elastic pad, so that the vibration of the air pump in the horizontal direction is weakened due to the buffering of the annular elastic pad, and the noise reduction effect is realized.)
1. The utility model provides a device of making an uproar falls in vibration isolation, is equipped with bottom plate (1) and installs the mechanism of making an uproar falls in vibration isolation on bottom plate (1), a serial communication port, the mechanism of making an uproar falls in vibration isolation includes mounting flange (3) and wears to overlap in peripheral a plurality of dead levers (6) of mounting flange and cylinder spring (7) of suit on the dead lever, dead lever (6) are fixed on bottom plate (1), mounting flange (3) slip is worn to overlap on the dead lever, the upper portion at dead lever (6), lower extreme fixed connection mounting flange (3) are fixed to the upper end of cylinder spring (7), and there is the interval between mounting flange (3) and.
2. The vibration and noise isolation device according to claim 1, wherein the lower end of the cylindrical spring (7) is fixedly connected with the mounting flange (3) through a plurality of lower positioning pins (10), pin holes are formed in the upper ends of the lower positioning pins (10), the lower end of the cylindrical spring (7) penetrates through the pin holes of the lower positioning pins (10), and the lower end of the lower positioning pin (10) penetrates through the mounting flange (3) and is fastened by nuts.
3. The vibration isolation and noise reduction device according to claim 2, wherein the bottom plate (1) below the lower positioning pin (10) is correspondingly provided with an anti-interference groove (2).
4. The vibration and noise isolation and reduction device according to any one of claims 1 to 3, wherein the upper end of the cylindrical spring (7) is fixed on the upper part of the fixing rod (6) through an upper gasket (9), a positioning nut (14) and an upper positioning pin (11), the upper gasket (9) is sleeved on the fixing rod (6) and is positioned between the two positioning nuts (14) in threaded connection with the fixing rod (6); the lower end of the upper positioning pin (11) is provided with a pin hole, the upper end of the cylindrical spring (7) penetrates through the pin hole of the upper positioning pin (11), and the upper end of the upper positioning pin (11) is fastened through a nut.
5. The vibration and noise isolation and reduction device according to any of claims 1 to 4, wherein said mounting flange (3) is used for inserting an annular elastic pad (12) in a through hole of the fixing rod (6), and the inner diameter of the annular elastic pad (12) is larger than the outer diameter of the fixing rod (6).
6. The vibration isolation and noise reduction device according to claim 5, wherein the through hole of the mounting flange (3) for penetrating and sleeving the fixing rod (6) is a circular through groove (4), the inner circumference of the circular through groove (4) is wide at the top and narrow at the bottom to form an inner step, the outer circumference of the annular elastic pad (12) is wide at the top and narrow at the bottom to form an outer step, the annular elastic pad (12) is nested in the circular through groove (4), and the outer step of the annular elastic pad is attached to the inner step of the circular through groove (4).
7. The vibration isolation and noise reduction device according to claim 6, wherein a lower gasket (8) is further arranged at the circular through groove (4) of the mounting flange (3), the lower gasket (8) is provided with a through hole with an inner diameter smaller than the outer diameter of the annular elastic pad (12), the lower gasket (8) is sleeved on the fixing rod (6) in a penetrating manner and is fixedly attached to the upper surface of the mounting flange (3), and the through hole of the lower gasket (8) is coaxially arranged with the circular through groove (4); preferably, the lower end of the annular elastic cushion (12) extends out of the circular through groove (4).
8. The vibration and noise insulation and reduction device according to any of claims 1 to 7, wherein each fixing rod (6) is provided with a fixing rod fastening nut (13) at the upper end face of the bottom plate (1).
9. The vibration isolation and noise reduction device according to any one of claims 1 to 8, wherein a limiting mechanism is further provided, the limiting mechanism comprises a limiting seat (15) and a limiting protrusion (5) which are arranged outside the mounting flange (3), the limiting seat (15) is provided with a limiting groove (16) which is opened towards the limiting protrusion (5), the limiting protrusion (5) is a protrusion which extends outwards from the mounting flange (3) or is directly fixed on the mounting flange (3), the limiting protrusion (5) extends into the limiting groove (16), and the size of the limiting groove (16) is matched with the limit value of the expansion and contraction amplitude of the cylindrical spring (7).
10. An air pump component with vibration and noise isolation and reduction device, comprising an air pump and the vibration and noise isolation and reduction device as claimed in any one of claims 1 to 9, wherein air pump foot seats (18) at two ends of the air pump are respectively fixed on a mounting flange (3) of the vibration and noise isolation and reduction device.
Technical Field
The invention relates to the technical field of air pumps, in particular to a vibration isolation and noise reduction device and an air pump component with the same.
Background
The air pump is used very extensively in industrial production, and it is generally through providing high-pressure gas through circulation compressed air, and at compressed gas's in-process, the inner assembly of air pump can inevitably produce the vibration, and then sends the noise, and the influence lies in staff around the air pump, can cause staff's attention not to concentrate, influences production efficiency, can influence staff's healthy even.
For example, an air pump applied to an indoor oxygen supply system has relatively large vibration during operation, relatively obvious resonance during installation on a casing, vibration transmission to the casing, and resonance caused by force excitation and sound excitation due to the thin-wall structure of the casing, so that noise is caused and the noise is radiated outwards, and the stability of the air pump during long-time operation is seriously affected.
An air pump in the existing indoor oxygen supply system is generally fixed on a bottom plate connected with a machine shell, the vibration reduction effect is realized through a spring arranged at the bottom of an air pump foot seat of the air pump, the weight of the air pump is directly born by the spring at the bottom and the vibration of the air pump is absorbed by the spring, so that the vibration is reduced and is transmitted to the machine shell from the bottom plate; in order to support the weight of the air pump, the spring is required to have higher rigidity so as to ensure that the air pump keeps a certain levelness, and the spring with higher rigidity has poor vibration absorption effect compared with the spring with lower rigidity.
Disclosure of Invention
In order to solve the above problems, the present invention provides a vibration isolation and noise reduction device.
The invention adopts the following technical scheme:
the utility model provides a device of making an uproar falls in vibration isolation, is equipped with bottom plate (1) and installs the mechanism of making an uproar falls in vibration isolation on bottom plate (1), the mechanism of making an uproar falls in vibration isolation includes mounting flange (3) and wears to overlap in peripheral a plurality of dead levers (6) of mounting flange and cylindrical spring (7) of suit on the dead lever, and dead lever (6) are fixed on bottom plate (1), and the cover is worn on the dead lever in mounting flange (3) slip, and the upper end of cylindrical spring (7) is fixed on the upper portion of dead lever (6), lower extreme fixed connection mounting flange (3), and there is the interval between mounting flange (.
In the vibration isolation and noise reduction device, the lower end of the cylindrical spring (7) is fixedly connected with the mounting flange (3) through the lower positioning pins (10), the upper ends of the lower positioning pins (10) are provided with pin holes, the lower end of the cylindrical spring (7) penetrates through the pin holes of the lower positioning pins (10), and the lower end of the lower positioning pins (10) penetrates through the mounting flange (3) and is fastened by nuts.
In the vibration isolation and noise reduction device, the bottom plate (1) positioned below the lower positioning pin (10) is correspondingly provided with the anti-interference groove (2).
In the vibration isolation and noise reduction device, the upper end of the cylindrical spring (7) is fixed on the upper part of the fixing rod (6) through an upper gasket (9), a positioning nut (14) and an upper positioning pin (11), and the upper gasket (9) is sleeved on the fixing rod (6) in a penetrating manner and is positioned between the two positioning nuts (14) in threaded connection with the fixing rod (6); the lower end of the upper positioning pin (11) is provided with a pin hole, the upper end of the cylindrical spring (7) penetrates through the pin hole of the upper positioning pin (11), and the upper end of the upper positioning pin (11) is fastened through a nut.
In the vibration isolation and noise reduction device, the mounting flange (3) is provided with an annular elastic pad (12) in a through hole for penetrating and sleeving the fixing rod (6), and the inner diameter of the annular elastic pad (12) is larger than the outer diameter of the fixing rod (6).
Among the above-mentioned vibration isolation noise reduction device, the perforation that mounting flange (3) are used for wearing cover dead lever (6) is circular logical groove (4), and the internal periphery of circular logical groove (4) is wide down the narrow interior step that forms, and the periphery of annular elastic pad (12) is wide down the narrow outer step that forms, and annular elastic pad (12) nestification is in circular logical groove (4), and the laminating of its outer step and the interior step of circular logical groove (4).
In the vibration isolation and noise reduction device, a lower gasket (8) is further arranged at the circular through groove (4) of the mounting flange (3), the lower gasket (8) is provided with a through hole with the inner diameter smaller than the outer diameter of the annular elastic pad (12), the lower gasket (8) is sleeved on the fixing rod (6) in a penetrating manner and is fixedly attached to the upper surface of the mounting flange (3), and the through hole of the lower gasket (8) is coaxially arranged with the circular through groove (4); preferably, the lower end of the annular elastic cushion (12) extends out of the circular through groove (4).
In the vibration isolation and noise reduction device, each fixing rod (6) is provided with a fixing rod fastening nut (13) at the upper end face of the bottom plate (1).
Above-mentioned vibration isolation noise reduction device still is equipped with stop gear, stop gear is including setting up spacing seat (15) and spacing arch (5) in mounting flange (3) outside, spacing seat (15) are equipped with spacing groove (16) of opening orientation spacing arch (5), spacing arch (5) are the arch of mounting flange (3) outside extension, or the arch of snap-on mounting flange (3), spacing arch (5) stretch into spacing groove (16), the flexible range limit value phase-match of size and cylindrical spring (7) of spacing groove (16).
The invention also provides an air pump component with the vibration isolation and noise reduction device, which comprises an air pump and the vibration isolation and noise reduction device, wherein air pump foot seats (18) at two ends of the air pump are respectively fixed on the mounting flange (3) of the vibration isolation and noise reduction device.
Different from the prior art, the invention has the following beneficial effects:
the vibration isolation and noise reduction device has the vibration isolation function of longitudinal vibration and the vibration attenuation and noise reduction function of horizontal vibration, wherein the vibration isolation refers to isolating the longitudinal vibration of the air pump from the bottom plate fixed on the machine shell, so that the vibration isolation effect of the longitudinal vibration of the air pump and the machine shell is realized, and compared with the existing scheme of utilizing the spring arranged at the bottom of the air pump foot base to realize vibration attenuation, the vibration isolation and noise reduction device has the advantages that the influence on the machine shell is smaller, and resonance is not easily formed; the noise reduction means that the horizontal vibration of the air pump is buffered and absorbed through the elastic cushion, so that the vibration reduction and noise reduction effects are realized. The device supports the air pump through a mounting flange, a plurality of fixing rods penetrating the periphery of the mounting flange and a vibration isolation and noise reduction mechanism formed by cylindrical springs sleeved on the fixing rods, the cylindrical springs take the fixing rods as a support and guide mechanism, the mounting flange is spaced from a bottom plate, longitudinal vibration of the air pump is absorbed by the cylindrical springs, the vibration of the air pump is prevented from being transmitted to a casing through the bottom plate, resonance is avoided, and therefore the vibration isolation function is achieved; a mounting flange suit for installing the air pump is on the dead lever and fix the lower extreme at cylindrical spring, and is provided with annular elastic pad in mounting flange's the circular logical inslot for the vibration of the horizontal direction of air pump weakens because annular elastic pad's buffering, thereby realizes making an uproar the effect of falling.
Drawings
FIG. 1A is a schematic structural view of the vibration and noise isolating device of the present invention;
FIG. 1B is a partial cross-sectional view of the vibration and noise isolating and reducing device of the present invention;
FIG. 2A is an enlarged view of region G of FIG. 1B;
FIG. 2B is an enlarged view of region H in FIG. 1B;
fig. 3 is a schematic structural diagram of the air pump with vibration and noise isolation device according to the present invention.
The main reference numbers:
100-vibration and noise reduction devices;
1-a bottom plate, 2-an interference-preventing groove, 3-a mounting flange, 4-a circular through groove, 5-a limiting bulge, 6-a fixing rod, 7-a cylindrical spring, 8-a lower gasket, 9-an upper gasket, 10-a lower positioning pin, 11-an upper positioning pin, 12-an annular elastic pad, 13-a fixing rod fastening nut, 14-a positioning nut, 15-a limiting seat and 16-a limiting groove; 17-air pump, 18-air pump foot stool.
Detailed Description
The vibration isolation and noise reduction device and the air pump component with the vibration isolation and noise reduction device of the invention are described in detail below with reference to the accompanying drawings and specific implementation examples.
Fig. 1A and 1B are schematic structural views of the vibration and noise isolating device according to the present invention. In this embodiment, the vibration isolation and
the vibration and
The vibration isolation and noise reduction mechanism comprises a
Further, referring to fig. 2A and 2B, the lower end of the
Because
Further, in order to prevent the annular
Preferably, each of the
Furthermore, an
During installation, the vibration isolation and noise reduction mechanism in the vibration isolation and
Further, the vibration isolation and
Preferably, an elastic cushion is laid on the inner wall of the limiting
The air pump with the vibration isolation and noise reduction device is used in an indoor oxygen supply system, as shown in fig. 3, the
Specifically, when the
Obviously, the application of the vibration isolating and
The vibration isolation and noise reduction device and the air pump with the vibration isolation and noise reduction device have the following characteristics:
1) the vibration isolation and
2) The vibration isolation and
3) Annular
3) The lower end of each
It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention, and that various equivalent modifications and changes may be made thereto without departing from the scope of the present invention.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:压缩机及其压缩机壳体组件、回油测量方法