Tensile Elastic Vibration Isolator

Abstract

The invention belongs to the field of vibration control and particularly relates to a tensile and elastic vibration isolator. The tensile and elastic vibration isolator comprises a top plate, a base plate and an elastic supporting component. The elastic supporting component comprises metal compression springs. The tensile and elastic vibration isolator further comprises a back pressure elastic component, a back pressure plate and a connecting rod. The bottom end of the connecting rod is fixedly connected with the base plate. A limiting piece of the back pressure elastic component is arranged on the top of the connecting rod. The top plate is internally provided with a back pressure groove, a back pressure circular bead or a back pressure cavity. The back pressure elastic component is arranged on the back pressure circular bead or in the limiting groove or the back pressure cavity through the limiting piece on the top of the connecting rod. The tensile and elastic supporting component is simple in structure, can bear downward pressure, can also bear upward tension, is high in vibration isolation efficiency and more stable and reliable in vibration isolation performance, can be widely applied to elastic vibration isolation foundation projects of various industrial rotation devices or rail transit vehicle operation and has wide market application prospects.

Description

technical field

[0001] The invention belongs to the field of vibration control, in particular to a vibration isolation device, in particular to a tensile elastic vibration isolator that can be widely used for vibration isolation of rail floating slab track beds, equipment or equipment foundations, and the like. Background technique

[0002] In recent years, with the continuous advancement of my country's industrial upgrading, various large-scale impact or rotary equipment are widely used in industrial production and commercial fields, such as various forging equipment, stamping equipment, nuclear power turbine generator sets, etc. At the same time, these The control of vibration and noise generated during the operation of equipment has also attracted people's attention. At present, in order to control this kind of vibration and noise problems, the technical principle of mass tuning is mostly used, and the vibration isolation system is composed of mass blocks and elastic compo...

Examples

Embodiment 1

[0029] Such as figure 1 , figure 2 with image 3 The tensile elastic vibration isolator of the present invention shown includes a top plate 1, a base plate 8 and an elastic support element 5. The elastic support element 5 is specifically a metal compression spring composed of a helical steel spring. There are four helical steel springs in total. In addition, It also includes a back pressure elastic element 10, a back pressure plate 3 and a connecting rod 9. The back pressure elastic element 10 adopts a compression spring, specifically a helical steel spring. As for the limiting part of the pressure elastic element, the back pressure groove 2 is integrally provided on the top plate 1 , and the back pressure elastic element 10 is limited in the limiting groove 2 by the limiting part on the top of the connecting rod 9 . The limiter is a lock nut 4, and the corresponding connecting rod 9 top is provided with a threaded connection section, and the counter pressure plate 3 is arr...

Embodiment 2

[0034] Such as Figure 5 with Image 6 The difference between the tensile elastic vibration isolator of the present invention shown in Embodiment 1 is that the back pressure chamber 12 made by welding steel pipes and steel plates is integrally arranged on the top plate 1, and the back pressure plate 3 and the back pressure elastic element 10 are arranged on the back pressure chamber. In the pressure chamber 12, for the convenience of installation and maintenance, the top plate 1 is provided with installation through holes 13 correspondingly. In addition, a damping device 11 is provided between the back pressure chamber 12 and the base plate 8, and the damping device 11 is specifically two hydraulic damping devices.

[0035] Compared with the technical solution described in Embodiment 1, in the technical solution described in this example, since the damping device 11 is arranged between the back pressure chamber 12 and the base plate 8, the product structure is more compact, a...

Embodiment 3

[0037] Such as Figure 7 The difference between the tensile elastic vibration isolator of the present invention shown in Embodiment 2 is that the damping device is specifically a viscous damping device, and the viscous damping device includes a damping cylinder 14 fixedly arranged on the base plate 8, and the damping cylinder 14 is provided with a liquid damping material 15, the liquid damping material 15 is specifically a liquid viscous damping, the back pressure chamber 12 is partly placed in the damping cylinder and the lower part of the back pressure chamber 12 is immersed in the liquid damping material 15.

[0038] Compared with Embodiment 2, in the technical solution described in this example, the back pressure chamber 12 is used as the moving body of the viscous damping device. The back pressure chamber 12 reciprocates and shears the liquid damping material 15 in the damping cylinder 14, which can quickly realize energy consumption, which has the advantages of large dam...

technical field

[0001] The invention belongs to the field of vibration control, in particular to a vibration isolation device, in particular to a tensile elastic vibration isolator that can be widely used for vibration isolation of rail floating slab track beds, equipment or equipment foundations, and the like. Background technique

[0002] In recent years, with the continuous advancement of my country's industrial upgrading, various large-scale impact or rotary equipment are widely used in industrial production and commercial fields, such as various forging equipment, stamping equipment, nuclear power turbine generator sets, etc. At the same time, these The control of vibration and noise generated during the operation of equipment has also attracted people's attention. At present, in order to control this kind of vibration and noise problems, the technical principle of mass tuning is mostly used, and the vibration isolation system is composed of mass blocks and elastic compo...

Examples

Embodiment 1

[0029] Such as figure 1 , figure 2 with image 3 The tensile elastic vibration isolator of the present invention shown includes a top plate 1, a base plate 8 and an elastic support element 5. The elastic support element 5 is specifically a metal compression spring composed of a helical steel spring. There are four helical steel springs in total. In addition, It also includes a back pressure elastic element 10, a back pressure plate 3 and a connecting rod 9. The back pressure elastic element 10 adopts a compression spring, specifically a helical steel spring. As for the limiting part of the pressure elastic element, the back pressure groove 2 is integrally provided on the top plate 1 , and the back pressure elastic element 10 is limited in the limiting groove 2 by the limiting part on the top of the connecting rod 9 . The limiter is a lock nut 4, and the corresponding connecting rod 9 top is provided with a threaded connection section, and the counter pressure plate 3 is arr...

Embodiment 2

[0034] Such as Figure 5 with Image 6 The difference between the tensile elastic vibration isolator of the present invention shown in Embodiment 1 is that the back pressure chamber 12 made by welding steel pipes and steel plates is integrally arranged on the top plate 1, and the back pressure plate 3 and the back pressure elastic element 10 are arranged on the back pressure chamber. In the pressure chamber 12, for the convenience of installation and maintenance, the top plate 1 is provided with installation through holes 13 correspondingly. In addition, a damping device 11 is provided between the back pressure chamber 12 and the base plate 8, and the damping device 11 is specifically two hydraulic damping devices.

[0035] Compared with the technical solution described in Embodiment 1, in the technical solution described in this example, since the damping device 11 is arranged between the back pressure chamber 12 and the base plate 8, the product structure is more compact, a...

Embodiment 3

[0037] Such as Figure 7 The difference between the tensile elastic vibration isolator of the present invention shown in Embodiment 2 is that the damping device is specifically a viscous damping device, and the viscous damping device includes a damping cylinder 14 fixedly arranged on the base plate 8, and the damping cylinder 14 is provided with a liquid damping material 15, the liquid damping material 15 is specifically a liquid viscous damping, the back pressure chamber 12 is partly placed in the damping cylinder and the lower part of the back pressure chamber 12 is immersed in the liquid damping material 15.

[0038] Compared with Embodiment 2, in the technical solution described in this example, the back pressure chamber 12 is used as the moving body of the viscous damping device. The back pressure chamber 12 reciprocates and shears the liquid damping material 15 in the damping cylinder 14, which can quickly realize energy consumption, which has the advantages of large dam...

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