Composite damping rubber wire rope isolator

Abstract

The present application relates to the technical field of vibration isolator, especially to a composite damping rubber steel wire rope vibration isolator, which comprises an upper mounting module, a lower mounting module and a deformation module, the deformation module is arranged between the upper mounting module and the lower mounting module, the deformation module can produce elastic deformation, so that the upper mounting module and the lower mounting module are elastically connected; the deformation module comprises at least one set of composite rolls, two sets of composite pieces and a vulcanized rubber structure, the composite rolls and the composite pieces have elastic deformation capacity and can absorb vibration through elastic deformation. The present application combines viscous damping and dry friction damping together, fully utilizes the respective advantages of the two kinds of damping, so that the composite damping of the vibration isolator is greatly increased; the deformation module of the present application adopts the composite of rubber and steel wire, which not only increases the damping of the vibration isolator, but also improves the structural strength of the vibration isolator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vibration isolators, and in particular to a composite damping rubber wire rope vibration isolator. BACKGROUND

[0002] With the development of vibration isolator technology, it is required that the vibration isolator must have excellent vibration isolation, shock isolation and sound isolation triple functions, and be easy to install. In the prior art, E-type and EA-type vibration isolators are generally used, and the number of vibration isolators used on some ships is more than 2000. The vibration isolators have poor vibration isolation, sound isolation and impact resistance, and the system inherent frequency is about 35 Hz. At present, they are still widely used because of their simple structure and low price. In particular, they are very easy to install, and can be installed in a side-hung manner on a bulkhead or structure to install equipment.

[0003] According to research data, the resonance amplification factor of the vibration isolator should be less than three, that is, the damping ratio of the vibration isolator is about 0.17. In the prior art, the vibration isolator mainly includes a rubber vibration isolator and a steel wire rope vibration isolator. It is difficult for the rubber vibration isolator to achieve the above requirements, especially when the resonance test is performed. Heat is rapidly generated and accumulated in the rubber within a short time, which can damage the rubber vibration isolator. The steel wire rope vibration isolator relies on the dry friction between the steel wires to generate damping, and the resonance amplification factor of the steel wire rope vibration isolator is usually 4 or even higher, and the damping ratio cannot meet the requirements. Another disadvantage of the steel wire rope vibration isolator is that the stiffness decreases with the increase of the compression deformation, which easily causes the secondary impact of "bottom collision".

[0004] Therefore, there is a need for a vibration isolator with a resonance amplification factor less than three to meet the increasingly stringent use requirements. SUMMARY

[0005] The present application aims at the above-mentioned shortcomings in the prior art production technology, and provides a composite damping rubber wire rope vibration isolator. The viscous damping of the rubber material and the friction damping generated by the mutual friction of the steel wire rope net are combined together, the advantages of the two kinds of damping are fully utilized, the equivalent damping coefficient is effectively improved, the resonance amplification coefficient is reduced, the resonance amplification factor of the vibration isolator is less than three, and the use requirements are met.

[0006] The technical scheme adopted by the present application is as follows:

[0007] The composite damping rubber wire rope vibration isolator comprises an upper mounting module, a lower mounting module and a deformation module, the deformation module is arranged between the upper mounting module and the lower mounting module, the deformation module can produce elastic deformation, and the upper mounting module and the lower mounting module are elastically connected;

[0008] The deformation module comprises at least one set of composite rolls, two sets of composite pieces and a vulcanized rubber structure, the composite rolls and the composite pieces have elastic deformation capacity and can absorb vibration through elastic deformation; the at least one set of composite rolls are arranged side by side between the upper mounting module and the lower mounting module, the upper end surface of the at least one set of composite rolls contacts and bears the middle part of the lower end surface of the upper mounting module, and the lower end surface of the at least one set of composite rolls contacts the middle part of the upper end surface of the lower mounting module; the two sets of composite pieces are symmetrically arranged on the left and right sides of the at least one set of composite rolls, the upper end surfaces of the two sets of composite pieces contact and bear the left and right sides of the lower end surface of the upper mounting module, the lower end surfaces of the two sets of composite pieces contact the left and right sides of the upper end surface of the lower mounting module, the outer surfaces of the composite rolls and the composite pieces are covered with the vulcanized rubber structure, the upper and lower parts of the vulcanized rubber structure are connected with the upper mounting module and the lower mounting module respectively, and the vulcanized rubber structure fills the space between the upper mounting module and the lower mounting module, so that the upper mounting module, the lower mounting module and the deformation module form an integral whole.

[0009] Further, two through holes are arranged on the deformation module in the longitudinal direction.

[0010] Further, the composite roll is in the form of a multi-layer cylindrical structure wound in a winding manner, the composite roll is in a flat rubber wire rope composite layer structure in an unfolded state, and the rubber wire rope composite layer structure comprises a first rubber layer and a steel wire rope arranged in the first rubber layer.

[0011] Further, the composite piece is a rubber steel wire mesh composite layer structure, and the rubber steel wire mesh composite layer structure comprises a second rubber layer and a plurality of layers of steel wire meshes arranged in the second rubber layer.

[0012] Further, the upper mounting module comprises an upper bottom plate, a cylindrical upper mounting column made of steel is welded to the center of the lower end surface of the upper bottom plate, a flat upper mounting plate made of steel is welded to the lower end of the upper mounting column, a threaded hole is arranged in the center of the upper mounting column, and the upper end of the threaded hole extends upward to the upper end surface of the upper bottom plate.

[0013] Further, the lower mounting module comprises a lower bottom plate, a T-shaped lower mounting frame is welded to the center of the upper end surface of the lower bottom plate, the lower mounting frame is used for positioning and mounting the composite roll, mounting holes are arranged at both ends of the lower bottom plate respectively, and the mounting holes are used for connecting the lower bottom plate and the mounting base.

[0014] Further, the upper and lower parts of the composite roll are respectively sleeved on the upper mounting plate and the lower mounting frame.

[0015] The beneficial effects of the present application are as follows:

[0016] The present application combines the viscous damping of the rubber material and the friction damping generated by the mutual friction of the steel wire mesh, fully gives the respective advantages of the two dampings, effectively improves the equivalent damping coefficient, thereby reduces the resonance amplification coefficient, so that the resonance amplification multiple of the vibration isolator is less than three, meeting the use requirement; the deformation module of the present application adopts the composite of rubber and steel wire, improving the structural strength of the vibration isolator; the steel wire rope and the steel wire mesh of the composite roll and the composite piece of the present application can rapidly conduct the heat generated during the operation of the vibration isolator to the upper mounting module and the lower mounting module and dissipate, effectively avoiding the heating problem; the rubber layer of the present application enables the rubber steel wire rope composite layer structure to have the elastic deformation capacity, and the steel wire rope arranged in the rubber layer can improve the tensile capacity of the rubber steel wire rope composite layer structure; the rubber layer of the present application enables the rubber steel wire mesh composite layer structure to have the elastic deformation capacity, and the multiple steel wire meshes arranged in the rubber layer can improve the tensile capacity of the rubber steel wire mesh composite layer structure; the deformation module of the present application adopts the composite of rubber and steel wire, which is conducive to the transmission of the isolation structure noise, and the sound wave is constantly reflected and diverted due to the sound impedance mismatch when passing through the combination of the rubber and the steel wire mesh and the steel wire rope, increasing the energy of the shear loss; the through hole arranged on the deformation module can adjust the rigidity of the whole deformation module, the through hole can allow the deformation of the rubber material, prevent the damage caused by the excessive extrusion of the steel wire and the rubber, and protect the rubber body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the embodiment one of the present application.

[0018] Figure 2 It is the top view of the embodiment one of the present application.

[0019] Figure 3 It is the sectional view of the embodiment one of the present application.

[0020] Figure 4 It is the front view of the embodiment two of the present application.

[0021] Figure 5 It is the structure diagram of the composite roll of the present application.

[0022] Figure 6 It is the structure diagram of the composite piece of the present application.

[0023] Among them: 100, the upper mounting module; 101, the upper bottom plate; 102, the upper mounting column; 103, the upper mounting plate; 104, the threaded hole; 200, the lower mounting module; 201, the lower bottom plate; 202, the lower mounting frame; 203, the mounting hole; 300, the deformation module; 310, the composite roll; 311, the first rubber layer; 312, the steel wire rope; 320, the composite piece; 321, the second rubber layer; 322, the steel wire mesh; 330, the coated rubber; 400, the through hole. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be described below with reference to the accompanying drawings. Example One:

[0025] As shown in Figure 1 , Figure 2 and Figure 3 , the composite damping rubber steel wire rope vibration isolator includes an upper mounting module 100, a lower mounting module 200, and a deformation module 300, the deformation module 300 is arranged between the upper mounting module 100 and the lower mounting module 200, and the deformation module 300 can produce elastic deformation to form an elastic connection between the upper mounting module 100 and the lower mounting module 200.

[0026] As shown in Figure 3 , the deformation module 300 includes two groups of cylindrical structure composite rolls 310, two groups of circular arc structure composite pieces 320, and a vulcanized rubber structure 330, the composite rolls 310 and the composite pieces 320 have elastic deformation capability and can absorb vibration through elastic deformation. The two groups of composite rolls 310 are arranged side by side between the upper mounting module 100 and the lower mounting module 200, the upper end surfaces of the two groups of composite rolls 310 contact and bear the middle part of the lower end surface of the upper mounting module 100, and the lower end surfaces of the two groups of composite rolls 310 contact the middle part of the upper end surface of the lower mounting module 200. The two groups of composite pieces 320 are symmetrically arranged on the left and right sides of the two groups of composite rolls 310, the upper end surfaces of the two groups of composite pieces 320 contact and bear the left and right sides of the lower end surface of the upper mounting module 100, and the lower end surfaces of the two groups of composite pieces 320 contact the left and right sides of the upper end surface of the lower mounting module 200. The outer surfaces of the composite rolls 310 and the composite pieces 320 are covered with the vulcanized rubber structure 330, the upper and lower parts of the vulcanized rubber structure 330 are connected to the upper mounting module 100 and the lower mounting module 200 respectively, and the vulcanized rubber structure 330 fills the space between the upper mounting module 100 and the lower mounting module 200, so that the upper mounting module 100, the lower mounting module 200, and the deformation module 300 form an integral whole.

[0027] The deformation of the vibration isolator is the largest when the two sides bear dynamic load, so the two composite pieces 320 are placed on the two sides of the vibration isolator, and the composite pieces 320 can most effectively increase the damping because the damping is proportional to the speed of relative deformation. This structure is also conducive to the transmission of structure-borne noise, and the sound waves are constantly reflected and diverted when passing through the combination of rubber and steel wire mesh, steel wire rope, increasing the energy loss of shear. At the same time, because the thermal conductivity of metal is much higher than that of rubber products, the steel wire rope and steel wire mesh of the composite rolls 310 and the composite pieces 320 can quickly conduct the heat generated during the operation of the vibration isolator to the upper mounting module 100 and the lower mounting module 200 and dissipate it, effectively avoiding the heating problem.

[0028] According to different specific use requirements, the composite roll 310 can also be one or more groups. The composite roll 310 is formed in a coiled manner to form a multi-layer cylindrical structure, and the composite roll 310 is a flat rubber steel wire rope composite layer structure in an unfolded state. As shown in Figure 5 The rubber steel wire rope composite layer structure includes a first rubber layer 311 and a steel wire rope 312 arranged in the first rubber layer 311. The first rubber layer 311 enables the rubber steel wire rope composite layer structure to have elastic deformation capability, and the steel wire rope 312 arranged in the first rubber layer 311 can improve the tensile capacity of the rubber steel wire rope composite layer structure. The practice of ship resistance to underwater explosion tells us that the main reason for the destruction of the vibration isolator caused by the explosion is the strong tensile stress and large deformation caused by the negative wave, and the tensile capacity of the steel wire rope can prevent the above-mentioned destruction from occurring. The double-wave impact test proves that the above-mentioned measures are very effective. Coiling the rubber steel wire rope composite layer structure to form a multi-layer structure can further improve the elastic deformation capability and tensile capacity of the composite roll 310.

[0029] As shown in Figure 6 The composite part 320 is a rubber steel wire mesh composite layer structure, which includes a second rubber layer 321 and a plurality of layers of steel wire mesh 322 arranged in the second rubber layer 321. The second rubber layer 321 enables the rubber steel wire mesh composite layer structure to have elastic deformation capability, and the plurality of layers of steel wire mesh 322 arranged in the second rubber layer 321 can improve the tensile capacity of the rubber steel wire mesh composite layer structure.

[0030] As shown in Figure 2 and Figure 3 The upper mounting module 100 includes a flat upper bottom plate 101 made of steel, and the center of the lower end surface of the upper bottom plate 101 is welded to the upper end of a cylindrical upper mounting column 102 made of steel. The lower end of the upper mounting column 102 is welded to a flat upper mounting plate 103 made of steel. The center of the upper mounting column 102 is provided with a threaded hole 104, and the upper end of the threaded hole 104 is open upward to extend to the upper end surface of the upper bottom plate 101. The threaded hole 104 is used for threaded connection of the equipment to be isolated, and the upper mounting plate 103 is used for positioning and mounting the composite roll 310.

[0031] As shown in Figure 2 and Figure 3 The lower mounting module 200 includes a flat lower bottom plate 201 made of steel, and the center of the upper end surface of the lower bottom plate 201 is welded to a T-shaped lower mounting frame 202 made of steel. The lower mounting frame 202 is used for positioning and mounting the composite roll 310. The two ends of the lower bottom plate 201 are respectively provided with mounting holes 203, and the mounting holes 203 are used for connection of the lower bottom plate 201 and the mounting base.

[0032] The upper and lower parts of the composite roll 310 are respectively sleeved on the upper mounting plate 103 and the lower mounting frame 202, and the positioning and installation of the composite roll 310 are realized through the upper mounting plate 103 and the lower mounting frame 202.

[0033] Before vulcanization coating, the surfaces of the steel wire rope of the composite roll 310 and the steel wire mesh of the composite piece 320 are treated and then coated with adhesive, so that high adhesive strength can be obtained after vulcanization with rubber, and the vulcanized rubber structure 330 can be firmly combined with the upper mounting module 100, the lower mounting module 200, the composite roll 310 and the composite piece 320 to form an integrated whole.

[0034] The difference between the second embodiment and the first embodiment is that:

[0035] As shown in Figure 4 The deforming module 300 is longitudinally provided with two through holes 400, which can adjust the rigidity of the whole deforming module 300 and allow the rubber material to deform, so as to prevent the steel wire and the rubber from being damaged due to excessive extrusion and protect the rubber body. According to different use requirements, there can be one through hole 400 or multiple through holes 400. The size and shape of the through hole 400 are related to the load capacity, installation mode (flat or side hanging), rigidity and damping of the vibration isolator and other factors.

[0036] After the preparation work is completed, the present application is placed in a mold with a specific structure according to the procedure, the mold cavity is filled with high-damping rubber by injection method, and after high-temperature vulcanization, the rubber steel wire vibration isolator is formed.

[0037] The rubber involved in the present application adopts a formula with high damping, aging resistance, high strength and certain oil resistance, which is used in an oil-free or basically oil-free working environment. The rubber can also be a high-damping oil-resistant formula or a radiation-resistant formula, which is used in an oil-containing or radiation-containing working environment. The hardness of the rubber can be adjusted to meet various dynamic performance requirements.

[0038] The above description is an explanation of the present application, not a limitation of the invention. The scope of the present application is defined in the claims, and any form of modification within the protection scope of the present application can be made.

Claims

1. A composite damping rubber steel wire rope isolator, comprising an upper mounting module (100), a lower mounting module (200) and a deformation module (300), characterized in that: The deformation module (300) is arranged between the upper mounting module (100) and the lower mounting module (200), and the deformation module (300) can be elastically deformed to form an elastic connection between the upper mounting module (100) and the lower mounting module (200); The deformation module (300) comprises at least one set of composite rolls (310), two sets of composite members (320) and a vulcanized rubber structure (330), the composite rolls (310) and the composite members (320) have an elastic deformation capability and can absorb vibration through elastic deformation; the at least one set of composite rolls (310) are arranged side by side between the upper mounting module (100) and the lower mounting module (200), the upper end surface of the at least one set of composite rolls (310) contacts and bears the middle part of the lower end surface of the upper mounting module (100), and the lower end surface of the at least one set of composite rolls (310) contacts the middle part of the upper end surface of the lower mounting module (200); the two sets of composite members (320) are symmetrically arranged on the left and right sides of the at least one set of composite rolls (310), the upper end surface of the two sets of composite members (320) contacts and bears the left and right sides of the lower end surface of the upper mounting module (100), the lower end surface of the two sets of composite members (320) contacts the left and right sides of the upper end surface of the lower mounting module (200), the outer surfaces of the composite rolls (310) and the composite members (320) are covered with the vulcanized rubber structure (330), the upper and lower parts of the vulcanized rubber structure (330) are connected with the upper mounting module (100) and the lower mounting module (200) respectively, and the vulcanized rubber structure (330) fills the space between the upper mounting module (100) and the lower mounting module (200), so that the upper mounting module (100), the lower mounting module (200) and the deformation module (300) form an integral whole; The composite roll (310) is in the form of a multi-layer cylindrical structure in a wound manner, and the composite roll (310) is a flat rubber steel wire rope composite layer structure in an unfolded state; the upper mounting module (100) comprises an upper bottom plate (101), a cylindrical upper mounting column (102) is welded to the center of the lower end surface of the upper bottom plate (101), an upper mounting plate (103) is welded to the lower end of the upper mounting column (102), the lower mounting module (200) comprises a lower bottom plate (201), a T-shaped lower mounting frame (202) is welded to the center of the upper end surface of the lower bottom plate (201), and the lower mounting frame (202) is used for positioning and mounting the composite roll (310), and the upper and lower parts of the composite roll (310) are respectively sleeved on the upper mounting plate (103) and the lower mounting frame (202).

2. The composite-damping rubber-covered steel wire cord isolator of claim 1, wherein: Two through holes (400) are arranged on the deformation module (300) in the longitudinal direction.

3. The composite-damping rubber steel wire cord isolator of any one of claims 1-2, wherein: The rubber steel wire rope composite layer structure comprises a first rubber layer (311) and a steel wire rope (312) arranged in the first rubber layer (311).

4. The composite-damped rubber-covered steel cord isolator of claim 3, wherein: The composite member (320) is a rubber steel wire mesh composite layer structure, and the rubber steel wire mesh composite layer structure comprises a second rubber layer (321) and a plurality of layers of steel wire meshes (322) arranged in the second rubber layer (321).

5. The composite, damped rubber, steel cord isolator of claim 4, wherein: The upper mounting column (102) is centrally provided with a threaded hole (104) which is open upward at the upper end and extends to the upper end surface of the upper bottom plate (101).

6. The composite-damped rubber-covered steel cord isolator of claim 5, wherein: The lower bottom plate (201) is provided with mounting holes (203) at both ends, which are used for connecting the lower bottom plate (201) and the mounting base.

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