Novel anti-impact vibration isolation device

Abstract

The utility model belongs to the technical field of vibration prevention, and relates to a novel anti-impact vibration isolation device which sequentially comprises a bottom plate, a middle plate and a top plate from bottom to top, and metal rubber is arranged between the bottom plate and the middle plate. The metal rubber comprises a metal wire pad and a metal wire ring; the metal wire pad is arranged between the bottom surface of the groove and the lower bottom surface of the middle plate; the metal wire ring is arranged in the buffering gap, and a steel wire rope is arranged between the middle plate and the top plate. According to the device, the metal rubber is arranged between the middle plate and the bottom plate for vibration isolation, and the low creep characteristic of the metal rubber is utilized, so that the problems that the rigid joint of the damper and the bottom plate is pulled apart and cracked due to impact are solved; in other words, a multi-layer anti-vibration structure can be finally formed, and the impact resistance and vibration isolation effect is greatly improved. The damping material has unique damping characteristics and has good impact resistance under low-frequency and high-frequency impact.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-vibration equipment, in particular to a novel anti-impact vibration isolation device. Background Art

[0002] Shock-resistant vibration isolation device refers to a device that effectively reduces shock and vibrations for equipment or items in environments such as high-intensity collisions and explosion shocks. Common shock-resistant vibration isolation devices include the following: 1. Rubber vibration isolator: Rubber materials have good elasticity and energy absorption performance, and can effectively isolate and absorb vibrations and shocks under reasonable design; 2. Metal spring vibration isolator: Metal spring vibration isolator absorbs energy through elastic deformation and achieves isolation effect while absorbing shock; 3. Hydraulic vibration isolator: The vibration isolation principle of hydraulic vibration isolator is similar to that of rubber vibration isolator, but due to the incompressibility of liquid, the vibration isolation effect is better; 4. Wire rope vibration isolator: Wire rope vibration isolator consists of multiple strands of steel wire rope, upper and lower flanges and a center bearing, etc., which can damp and isolate the vibration of mechanical equipment or industrial facilities in multiple directions. Air spring vibration isolator: Air spring vibration isolator achieves shock absorption and vibration isolation effects by filling gas. Due to the advantages of light material and low maintenance cost, it is increasingly widely used in shock-resistant vibration isolation. The above-mentioned types of impact-resistant vibration isolation devices have their own characteristics and applicable scopes, and need to be selected according to specific usage scenarios and vibration isolation requirements.

[0003] With the continuous progress of science and technology and the development of economy and society, people's requirements for vibration isolation devices will continue to increase, and the improvement of vibration isolation devices will never end. Although many existing anti-impact vibration isolation devices have been widely used, their performance still needs to be improved. For example, the wire rope vibration isolation device has the advantages of multi-directional vibration isolation, good durability, and easy maintenance, and is widely used in the isolation of explosion vibration in protective engineering. Chinese patent publication number CN116464733A discloses a new type of wire rope-viscous damping anti-impact shock-absorbing device. By setting a wire rope and a viscous fluid device, the vertical frequency of the upper structure is adjusted by using the lower vertical stiffness of the wire rope, and at the same time, the friction deformation energy between the strands of the wire rope and the shear deformation energy of the non-Newtonian fluid in the viscous fluid device are consumed. However, in the case of excessive impact, the viscous fluid device is rigidly connected to the upper and lower sealing plates, and the huge impact energy can easily cause the rigid connection to break and crack due to the impact, as well as the rigid collision caused by the sinking and tilting of the equipment. In view of this, the present application aims to provide a new type of impact-resistant vibration isolation device, which has the advantages of both liquid-solid coupling impact-resistant vibration isolation devices and can resist the effects of greater impact energy, especially having good impact resistance under low-frequency and high-frequency impacts. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a novel anti-impact vibration isolation device, which overcomes the above-mentioned defects of the traditional liquid-solid coupling type vibration isolation device and has good anti-impact vibration isolation effect.

[0005] The technical solution of the utility model is: a new type of impact-resistant vibration isolation device, which includes a bottom plate, an intermediate plate and a top plate from bottom to top, wherein metal rubber is arranged between the bottom plate and the intermediate plate; a steel wire rope is arranged between the intermediate plate and the top plate; a cylinder is arranged on the upper surface of the intermediate plate or the bottom plate, and a piston rod corresponding to the cylinder is arranged on the lower surface of the top plate, and the lower end of the piston rod is located in the internal cavity of the cylinder; the internal cavity of the cylinder is filled with a non-Newtonian fluid.

[0006] Furthermore, a groove is provided on the upper surface of the bottom plate, and the groove is filled with metal rubber; the shape of the groove is adapted to the shape of the lower bottom surface of the middle plate, and the size of the groove is larger than the size of the lower bottom surface of the middle plate, so that a buffer gap is left between the lower bottom surface of the middle plate and the inner wall of the groove.

[0007] Furthermore, the metal rubber includes a metal wire pad and a metal wire ring, wherein the metal wire pad is arranged between the bottom surface of the groove and the lower bottom surface of the middle plate; the metal wire ring is arranged between the buffer gap, and a sealing ring is arranged on the upper surface of the metal wire ring; the metal rubber used in the utility model is a porous functional structural damping material, which can be made of stainless steel wire through wire selection, wire winding, stretching, blank weaving and molding, cleaning and other processes, and is a new type of high elasticity and large damping material. Between the middle plate and the bottom plate, the metal wire pad can achieve a good buffering and vibration-proof function in the vertical direction, and the metal wire ring can achieve a buffering and vibration-proof effect in the horizontal direction.

[0008] Furthermore, the wire pad and the wire ring are specifically spiral wires, adjacent spiral wires are offset by one pitch and are horizontally stacked and wound, and a number of polygonal buffer zones are formed between adjacent spiral wires. The impact load on the wire pad and the wire ring is buffered by the polygonal buffer zones in the stacked and wound spiral wires.

[0009] Furthermore, the bottom plate is polygonal, circular or elliptical, and the bottom plate can be set to a specific shape according to implementation needs.

[0010] Furthermore, the middle plate includes a base plate and a wing plate arranged on the side of the base plate, and the wing plate is provided with a mounting hole for fixing the end of the wire rope; the cylinder is arranged in the middle of the upper surface of the base plate. Preferably, in some embodiments, the cylinder can also be arranged on the bottom plate, so that a damping structure is formed between the bottom plate and the top plate.

[0011] Furthermore, the middle plate is made of metal material, and the wing plate and the base plate are formed in one piece; preferably, the middle plate is made of spring steel, and the angle between the wing plate and the base plate is between 120-140 degrees. In this way, the wing plate can also have a certain elasticity and can achieve the corresponding buffering function.

[0012] Furthermore, the cylinder barrel and the base plate are integrally formed. Preferably, the cylinder barrel is cylindrical with an opening on the top, and the lower end of the piston rod can pass through the opening to perform lifting motion in the cylinder barrel.

[0013] Furthermore, the lower end of the piston rod is connected with a pressing plate, which is kept horizontal; the shape of the pressing plate is adapted to the shape of the inner cavity of the cylinder; preferably, the size of the pressing plate is smaller than the inner diameter of the cylinder, and a gap is left between the side wall of the pressing plate and the inner wall of the cylinder. In this way, when the top plate and the middle plate undergo a certain degree of horizontal displacement, the piston rod and the pressing plate will not exert too much squeezing force on the inner wall of the cylinder.

[0014] Furthermore, the tablet is completely immersed in the non-Newtonian fluid in the cylinder; in this way, during operation, no matter whether the tablet rises or falls, the tablet can cooperate with the non-Newtonian fluid to achieve a good damping effect. Preferably, the tablet can have a certain thickness, for example, a thickness of 1-3 cm, so that the side of the tablet and the non-Newtonian fluid also have a considerable contact area, and when facing a horizontal force, the piston rod and the cylinder structure can also produce a certain damping effect. A vertical baffle can also be directly set on the tablet to increase the contact area between the tablet and the non-Newtonian fluid in the horizontal direction and improve the damping effect in the horizontal direction.

[0015] Furthermore, the non-Newtonian fluid is polyisobutylene or dimethyl silicone oil.

[0016] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, a wire rope vibration isolator structure can be formed between the top plate and the middle plate, and a hydraulic damping structure can also be formed through the piston plate and the cylinder, and metal rubber vibration isolation is also used between the middle plate and the bottom plate; that is, the utility model can ultimately form a multi-layer vibration isolation structure, which greatly improves the impact resistance and vibration isolation effect; and the combined design of the hydraulic damping structure, the wire rope vibration isolator and the metal rubber makes the device of the utility model have unique damping characteristics, and has good impact resistance under low-frequency and high-frequency impacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of embodiment 1 of the utility model;

[0018] Figure 2 It is a three-dimensional cross-sectional schematic diagram of embodiment 1 of the utility model;

[0019] Figure 3 yes Figure 2 A magnified view of part A;

[0020] Figure 4 This is a side view of Example 1 of the utility model after omitting the bottom plate structure;

[0021] Figure 5 It is a three-dimensional schematic diagram of embodiment 2 of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the metal wire ring of the utility model;

[0023] In the figure: 1-bottom plate, 2-sealing ring, 3-middle plate, 31-base plate, 32-wing plate, 4-top plate, 5-wire rope, 6-cylinder, 7-piston rod, 8-wire ring, 9-wire pad. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art.

[0025] Example 1

[0026] like Figure 1-4 As shown, this embodiment is a new type of impact-resistant vibration isolation device, which includes a bottom plate 1, a middle plate 3 and a top plate 4 from bottom to top, and a metal rubber is arranged between the bottom plate 1 and the middle plate 3; a steel wire rope 5 is arranged between the middle plate 3 and the top plate 4; a cylinder 6 is arranged on the upper surface of the middle plate 3, and a piston rod 7 corresponding to the cylinder 6 is arranged on the lower surface of the top plate 4, and the lower end of the piston rod 7 is located in the internal cavity of the cylinder 6; the internal cavity of the cylinder 6 is filled with a non-Newtonian fluid, and the non-Newtonian fluid is dimethyl silicone oil; the cylinder 6, the non-Newtonian fluid and the piston rod 7 cooperate to form a damping structure.

[0027] In this embodiment, the bottom plate 1 is rectangular, and a groove is arranged on the upper surface of the bottom plate 1. The shape of the groove is adapted to the shape of the lower bottom surface of the middle plate 3, and the size of the groove is larger than the size of the lower bottom surface of the middle plate 3, so that a buffer gap is left between the lower bottom surface of the middle plate 3 and the inner wall of the groove. The groove is filled with metal rubber. The metal rubber in this embodiment includes a metal wire pad 9 and a metal wire ring 8, wherein the metal wire pad 9 is arranged between the bottom surface of the groove and the lower bottom surface of the middle plate 3; the metal wire ring 8 is arranged between the buffer gap; and a sealing ring 2 is arranged on the upper surface of the metal wire ring 8. In this embodiment, the metal rubber used can be made of stainless steel wire through the processes of wire selection, wire winding, stretching, blank weaving, molding, cleaning, etc. The metal wire pad 9 is arranged between the lower surface of the middle plate 3 and the bottom surface of the groove of the bottom plate 1. The metal wire pad 9 can achieve a good buffering and vibration-proof function in the vertical direction; and by arranging the metal wire ring 8 between the buffer gap, when the middle plate 3 and the bottom plate 1 undergo relative horizontal displacement, a buffering and vibration-proof effect in the horizontal direction can be provided.

[0028] In this embodiment, the metal wire pad 9 and the metal wire ring 8 are specifically spiral metal wires 81. Adjacent spiral metal wires 81 are offset by one pitch and are horizontally stacked and wound. A number of polygonal buffer zones 82 are formed between adjacent spiral metal wires 81. The impact loads on the metal wire pad 9 and the metal wire ring 8 are buffered by the polygonal buffer zones 82 in the stacked and wound spiral metal wires 81.

[0029] In this embodiment, the middle plate 3 includes a base plate 31 and a wing plate 32. The base plate 31 is also rectangular. The wing plates 32 are symmetrically arranged on both sides of the base plate 31. The middle plate 3 is made of spring steel, and the wing plates 32 are integrally formed with the base plate 31. The angle between the wing plates 32 and the base plate 31 is about 135 degrees. In this way, the wing plates 32 can also have a certain elasticity, which increases the buffering function of the entire device. The wing plates 32 are provided with mounting holes for fixing the ends of the steel wire ropes 5; the cylinder barrel 6 is arranged at the center of the upper surface of the base plate 31. The cylinder barrel 6 is integrally formed with the base plate 31, and the cylinder barrel 6 is cylindrical with an opening on the top. The lower end of the piston rod 7 can pass through the opening to perform lifting and lowering movements in the cylinder barrel 6. In some other embodiments, the cylinder barrel 6 can also be arranged on the bottom plate 1, so that a damping structure is formed between the bottom plate 1 and the top plate 4.

[0030] In this embodiment, the lower end of the piston rod 7 is connected with a pressing plate, which is kept horizontal; the shape of the pressing plate is adapted to the shape of the inner cavity of the cylinder 6; and the size of the pressing plate is smaller than the inner diameter of the cylinder 6, so that a gap is left between the side wall of the pressing plate and the inner wall of the cylinder 6. In this way, when the top plate 4 and the middle plate 3 undergo a certain degree of horizontal displacement, the piston rod 7 and the pressing plate will not generate too much squeezing force on the inner wall of the cylinder 6.

[0031] In this embodiment, the tablet is completely immersed in the non-Newtonian fluid in the cylinder 6; in this way, during operation, no matter whether the tablet rises or falls, the tablet can cooperate with the non-Newtonian fluid to achieve a good damping effect. Preferably, the tablet can have a certain thickness, for example, a thickness of 1-3 cm, so that the side of the tablet and the non-Newtonian fluid also have a considerable contact area, and when facing a horizontal force, the piston rod 7 and the cylinder 6 structure can also produce a certain damping effect. A vertical baffle can also be directly set on the tablet to increase the contact area between the tablet and the non-Newtonian fluid in the horizontal direction and improve the damping effect in the horizontal direction.

[0032] The multi-layer vibration reduction principle of the anti-vibration isolation device in this embodiment is: a metal rubber vibration isolation structure is formed between the bottom plate 1 and the middle plate 3 through the metal wire pad 9 and the metal wire ring 8, a wire rope 5 vibration isolation structure is formed between the middle plate 3 and the top plate 4 through the wire rope 5, and a liquid group vibration isolation structure is formed between the middle plate 3 and the top plate 4 through the piston rod 7, the cylinder 6 and the dimethyl silicone oil, so that the whole device has a three-layer vibration reduction effect. When in use, the vibration source and the vibration response body are respectively arranged on both sides of the bottom plate 1 and the top plate 4, and an excellent vibration isolation effect can be achieved.

[0033] Example 2

[0034] like Figure 5 As shown, the difference between this embodiment and embodiment 1 is mainly that the shape of the bottom plate 1 is designed to be circular, and the shapes of the middle plate 3 and the top plate 4 are also adjusted accordingly. Figure 4 The technical solution in this embodiment can be clearly understood by referring to the text description in Example 1; therefore, it will not be described in detail.

[0035] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and modifications of the aforementioned technical features. Without departing from the spirit and scope of the present invention, those skilled in the art may improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection of the present invention.

Claims

1. A novel anti-shock and vibration isolation device, which comprises a bottom plate, an intermediate plate and a top plate from bottom to top, wherein a cylinder is arranged on the upper surface of the intermediate plate or the bottom plate, and a piston rod corresponding to the cylinder is arranged on the lower surface of the top plate, and the lower end of the piston rod is located in the inner cavity of the cylinder; the inner cavity of the cylinder is filled with a non-Newtonian fluid, Features: The upper surface of the bottom plate is provided with a groove, and the groove is filled with metal rubber; the shape of the groove is adapted to the shape of the lower bottom surface of the middle plate, and the size of the groove is larger than the size of the lower bottom surface of the middle plate, so that a buffer gap is left between the lower bottom surface of the middle plate and the inner side wall of the groove; The metal rubber includes a metal wire pad and a metal wire ring, wherein the metal wire pad is arranged between the bottom surface of the groove and the lower bottom surface of the middle plate; the metal wire ring is arranged between the buffer gaps, and a sealing ring is arranged on the upper surface of the metal wire ring; The metal wire pad and the metal wire ring are specifically spiral metal wires. Adjacent spiral metal wires are offset by one pitch and are horizontally stacked and wound. A number of polygonal buffer zones are formed between adjacent spiral metal wires. The impact load on the metal wire pad and the metal wire ring is buffered by the polygonal buffer zones in the stacked and wound spiral metal wires.

2. According to the novel anti-shock and vibration isolation device of claim 1, Features: The bottom plate is polygonal, circular or elliptical.

3. According to the novel anti-shock and vibration isolation device of claim 1, Features: The middle plate comprises a base plate and a wing plate arranged on the side of the base plate, the wing plate is provided with a mounting hole for fixing the end of the wire rope, and the cylinder is arranged on the upper surface of the base plate.

4. According to the novel anti-shock and vibration isolation device of claim 1, Features: The cylinder barrel is arranged on the upper surface of the bottom plate, and there are a plurality of cylinder barrels which are evenly arranged on the bottom plate.

5. According to the novel anti-shock and vibration isolation device of claim 1, Features: The middle plate is made of metal material, the wing plate and the base plate are formed in one piece, and the angle between the wing plate and the base plate is in the range of 120-140 degrees.

6. According to the novel anti-shock and vibration isolation device of claim 1, Features: The lower end of the piston rod is connected with a pressing sheet, which is kept horizontal; the shape of the pressing sheet is adapted to the shape of the inner cavity of the cylinder.

7. According to the novel anti-shock and vibration isolation device of claim 6, Features: The pressed tablet is completely immersed in the non-Newtonian fluid in the cylinder.

8. According to the novel anti-shock and vibration isolation device of claim 1, Features: The non-Newtonian fluid is polyisobutylene or dimethyl silicone oil.

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