Elastic cabin-penetrating vibration isolation device

Abstract

The invention discloses an elastic cabin-penetrating vibration isolation device, and relates to the technical field of ship sound stealth and impact protection. Comprising a pipe body and further comprises a reinforcing structure, a pair of vulcanized bodies, a pair of limiting pieces, a rubber layer and a middle mass body, the reinforcing structure comprises a pair of welding cushion cylinders and a pair of welding base plates which are coaxially arranged, the welding cushion cylinders penetrate through and are connected with a bulkhead, and the welding base plates are connected with the two sides of the bulkhead correspondingly; the welding cushion plates are connected to the welding cushion cylinders in a one-to-one correspondence mode. The pipe body is used for penetrating through the pair of welding cushion cylinders, the rubber layer and the middle mass body are arranged on the pipe body in a sleeving mode from inside to outside, and the middle mass body is located in the pair of welding cushion cylinders. In the working process, the welding cushion cylinders and the welding cushion plates form a cabin wall reinforcing structure, and the liquid passing pipe body penetrates through the pair of welding cushion cylinders; the welding base plate can be used for reinforcing the bulkhead and can also be used for installing a vulcanized body.

Description

Technical Field

[0001] The invention relates to the technical field of ship acoustic stealth and impact protection, and in particular to an elastic cabin penetration vibration isolation device. Background Art

[0002] Mechanical noise is the main noise source of underwater acoustic radiation of ships during stealth navigation. Mechanical noise is mainly caused by the vibration of the auxiliary engine system. The pipeline system, as an important channel for the transmission of vibration of the auxiliary engine system, is a weak point in the control of mechanical noise. Because the pipeline system involves boundary conditions such as bulkhead sealing and bulkhead pressure, the application of elastic penetration vibration isolation devices at the pipeline penetration part is one of the main technical means for pipeline vibration reduction and impact resistance.

[0003] For example, the patent with publication number CN112963627A published by the State Intellectual Property Office on June 15, 2021, entitled "A double-layer vibration isolation device for elastic pipeline penetration", reduces vibration through a double-layer vibration isolation design, but the structure is relatively complex and cannot meet the low stiffness requirements. Summary of the invention

[0004] In view of the above problems, the present invention provides an elastic cabin penetration vibration isolation device which has a simple structure, is easy to process and has reliable vibration reduction.

[0005] The technical solution of the present invention is: an elastic cabin penetration vibration isolation device, comprising a pipe body, a reinforcement structure, a pair of vulcanized bodies, a pair of stoppers, a rubber layer and an intermediate mass body, The reinforcement structure includes a pair of coaxially arranged welding pads and a pair of welding pads. A pair of welding pads pass through and are connected to the bulkhead, and a pair of welding pads are respectively connected to two sides of the bulkhead, and the welding pads are connected to the welding pads one by one; The tube body is used to pass through a pair of welding cushion cylinders, the rubber layer and the intermediate mass body are sleeved on the tube body from the inside to the position, and the intermediate mass body is located in the pair of welding cushion cylinders; The cross section of the vulcanized body is curved, and the vulcanized body corresponds to the welding backing plate one by one. One end of the sulfide body is connected to the welding pad through the sulfide body frame 1, and the other end is arranged on the middle mass body through the sulfide body frame 2. The stopper is connected to the middle mass body, and the second sulfide frame is located outside the stopper. The intermediate mass body is provided with a nut connected by threads on the outer side of the second vulcanized body frame.

[0006] The vulcanized body is annular and includes a rubber body and a cord fabric. The rubber body is used to wrap the cord fabric to form a whole. Two ends of the cord fabric extend out of the rubber body respectively.

[0007] It also includes a pair of steel wire rings, which are connected to the two ends of the cord fabric in a one-to-one correspondence. Both ends of the cord fabric extending out of the rubber body are respectively provided with holes, and the wire ring is used to pass through the holes of the cord fabric.

[0008] The rubber body is provided with an annular retaining ring at one end of the cord fabric, and a plurality of limiting holes are evenly distributed on the annular retaining ring.

[0009] The annular retaining ring is used to contact the sulfide frame one, and the limiting hole is used to place screws connecting the sulfide frame one and the welding pad.

[0010] The intermediate mass body comprises a pair of vibration-damping body frames and a connecting piece, the pair of vibration-damping body frames are symmetrically arranged, and the connecting piece is connected between the pair of vibration-damping body frames; The limiting members are connected to the vibration-damping body frame in a one-to-one correspondence.

[0011] The vulcanized body skeleton is used to limit the cord fabric extending out of one end of the rubber body; The second vulcanized body skeleton is used to limit the cord fabric extending out of the other end of the rubber body.

[0012] An axial sealing O-ring is arranged between the vulcanized body frame 1 and the welding pad.

[0013] The limiting member is ring-shaped, and the outer diameter of the limiting member is larger than the inner diameter of the welding cushion tube.

[0014] The rubber layer includes a pair of rubber bodies, and the pair of rubber bodies are symmetrically arranged.

[0015] The rubber body is provided with an annular hole on the end surface, and the rubber body is provided with a cord fabric in the axial direction.

[0016] In the present invention, during operation, the welding pad tube and the welding pad plate form a bulkhead reinforcement structure, and a pipe body passing liquid passes through a pair of welding pad tubes; wherein the welding pad plate can be used not only for bulkhead reinforcement but also for installing a vulcanized body.

[0017] The vulcanized body, the intermediate mass body and the rubber layer are arranged on the pipe body in sequence from the inside to the outside, thereby forming a double-layer vibration isolation, with a reliable layout and convenient installation.

[0018] One end of the vulcanized body is connected to the welding pad through the vulcanized body frame 1, and the other end is set on the middle mass body through the vulcanized body frame 2 to ensure the support of the vulcanized body to the pipeline, and also to ensure the relative position of the vulcanized body and the pipeline. The cross section of the vulcanized body is curved, which ensures low stiffness requirements and axial compensation displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the following briefly introduces the drawings required for the specific implementation or the prior art description. In the drawings, each part is not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the present invention, Figure 2 yes Figure 1 A partial enlarged view of the M in the middle. Figure 3 It is a schematic diagram of the structure of the sulfide. Figure 4 yes Figure 3 Schematic diagram of the structure in the N direction; In the figure, 1 is a tube body, 2 is a vulcanized body, 21 is a rubber body, 22 is a cord fabric, 23 is a wire ring, 24 is a perforation, 25 is an annular retaining ring, and 26 is a limiting hole. 3 is a limiter, 4 is a rubber layer, 41 is a rubber body, 42 is an annular hole, 5 is the middle mass body, 51 is the vibration reduction body frame, 52 is the connecting member, 6 is a welding gasket, 7 is a welding gasket, 8 is a bulkhead, 9 is a vulcanized body frame 1, 10 is a vulcanized body frame 2, 11 is a nut, 12 is a screw, and 13 is an axial sealing O-ring. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The present invention Figure 1-4 As shown, an elastic cabin penetration vibration isolation device includes a pipe body 1, a reinforcement structure, a pair of vulcanized bodies 2, a pair of stoppers 3, a rubber layer 4 and an intermediate mass body 5. The reinforcement structure includes a pair of coaxially arranged welding pads 6 and a pair of welding pads 7. A pair of welding pads 6 pass through and are connected to the bulkhead 8, and a pair of welding pads 7 are respectively connected to both sides of the bulkhead. The welding pads 7 are connected to the welding pads 6 one by one, and the welding pads are arranged on the outer ring of the welding pads; The tube body 1 is used to pass through a pair of welding cushion tubes 6, and the rubber layer 4 and the intermediate mass body 5 are sleeved on the tube body 1 from the inside to the position, and the intermediate mass body is located in the pair of welding cushion tubes; The cross section of the vulcanized body 2 is curved, and the vulcanized body 2 corresponds to the welding pad 7 one by one. One end of the sulfide body 2 is connected to the welding pad 7 through the sulfide body frame 1 9, and the other end is arranged on the middle mass body 5 through the sulfide body frame 2 10. The stopper 3 is connected to the intermediate mass body 5, and the sulfide frame 10 is located outside the stopper 3. The intermediate mass body 5 is provided with a nut 11 on the outer side of the vulcanized body frame 2 10 through a threaded connection, and the nut is used to achieve compression of the vulcanized body in a pre-tightened state.

[0025] In the present invention, during operation, the welding pad tube and the welding pad plate form a bulkhead reinforcement structure, and a pipe body passing liquid passes through a pair of welding pad tubes; wherein the welding pad plate can be used not only for bulkhead reinforcement but also for installing a vulcanized body.

[0026] The vulcanized body, the intermediate mass body and the rubber layer are arranged on the pipe body in sequence from the inside to the outside, thereby forming a double-layer vibration isolation, with a reliable layout and convenient installation.

[0027] One end of the vulcanized body is connected to the welding pad through the vulcanized body frame 1, and the other end is set on the middle mass body through the vulcanized body frame 2 to ensure the support of the vulcanized body to the pipeline, and also to ensure the relative position of the vulcanized body and the pipeline. The cross section of the vulcanized body is curved, which ensures low stiffness requirements and axial compensation displacement.

[0028] The vulcanized body 2 is annular and includes a rubber body 21 and a cord fabric 22. The rubber body is used to wrap the cord fabric to form a whole. Both ends of the cord fabric 22 extend out of the rubber body respectively.

[0029] The rubber body wraps the cord fabric to form a vulcanized body as a whole, which improves the strength while ensuring the elasticity; at the same time, both ends of the cord fabric extend out of the rubber body respectively, which is convenient for installation and connection.

[0030] In use, the cord fabric can be a whole ring or a plurality of strips evenly distributed in a ring.

[0031] It also includes a pair of wire rings 23, which are connected to the two ends of the cord fabric in a one-to-one correspondence. Both ends of the cord fabric extending out of the rubber body are respectively provided with perforations 24 (the ends of the cord fabric are bent to form the perforations), and the wire ring is used to pass through the perforations of the cord fabric.

[0032] A wire ring is provided to connect to the perforations of the cord fabric to form a whole and improve the strength.

[0033] The rubber body is provided with an annular retaining ring 25 at one end of the tire cord fabric, and a plurality of limiting holes 26 are evenly distributed on the annular retaining ring.

[0034] An annular retaining ring and a limiting hole are provided to play a positioning role.

[0035] The annular retaining ring is used to contact the sulfide frame 1 9, and the limiting hole is used to place the screws 12 connecting the sulfide frame 1 and the welding pad.

[0036] The annular retaining ring plays a further limiting role, and the limiting hole is used to place the screw, which is convenient and reliable.

[0037] The intermediate mass body 5 includes a pair of vibration-damping body frames 51 and a connecting member 52, the pair of vibration-damping body frames are symmetrically arranged, and the connecting member is connected between the pair of vibration-damping body frames; The limiting members 3 are connected to the vibration-absorbing body frame 51 in a one-to-one correspondence.

[0038] The middle mass body adopts a split type, which is convenient for processing and installation and saves costs.

[0039] The vulcanized body skeleton 9 is used to limit the cord fabric extending out of one end of the rubber body; The vulcanized body skeleton 10 is used to limit the cord fabric extending out of the other end of the rubber body.

[0040] Since the two ends of the cord fabric extend out of the rubber body respectively, they are limited and fixed by the vulcanized body frame 1 and the vulcanized body frame 2.

[0041] The sulfide frame one and the sulfide frame two are both ring-shaped. In application, the sulfide frame one and the sulfide frame two are split, and the two parts are butt-jointed and wrapped to limit the position, which is convenient for disassembly and assembly.

[0042] An axial sealing O-ring is provided between the vulcanized body frame 9 and the welding pad 7.

[0043] In this way, sealing is performed by providing an axial sealing O-ring.

[0044] The limiting member 3 is ring-shaped, and the outer diameter of the limiting member is larger than the inner diameter of the welding cushion tube.

[0045] The welding washer is located between a pair of limiting members, thus playing the role of axial limiting.

[0046] During application, the tube body is provided with a limiter for the rubber layer to prevent the rubber layer from shifting.

[0047] The rubber layer 4 includes a pair of rubber bodies 41 , which are symmetrically arranged.

[0048] In this way, the rubber layer is arranged as a pair of rubber bodies, which are convenient for splicing and sleeve-arranging on the pipe body, and convenient for processing.

[0049] The rubber body 41 is provided with an annular hole 42 on the end surface, and the rubber body is provided with a cord fabric in the axial direction.

[0050] In this way, the rubber body is provided with an annular hole to save materials; and the cord fabric is provided to improve strength.

[0051] Regarding the contents disclosed in this case, there are a few points that need to be explained: (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design; (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to obtain new embodiments; The above are only specific implementation methods disclosed in this case, but the protection scope of the present disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. An elastic cabin penetration vibration isolation device, comprising a tube body, characterized in that: It also includes a reinforcement structure, a pair of vulcanized bodies, a pair of stoppers, a rubber layer and an intermediate mass body. The reinforcement structure includes a pair of coaxially arranged welding pads and a pair of welding pads. A pair of welding pads pass through and are connected to the bulkhead, and a pair of welding pads are respectively connected to two sides of the bulkhead, and the welding pads are connected to the welding pads one by one; The tube body is used to pass through a pair of welding cushion cylinders, the rubber layer and the intermediate mass body are sleeved on the tube body from the inside to the position, and the intermediate mass body is located in the pair of welding cushion cylinders; The cross section of the vulcanized body is curved, and the vulcanized body corresponds to the welding backing plate one by one. One end of the sulfide body is connected to the welding pad through the sulfide body frame 1, and the other end is arranged on the middle mass body through the sulfide body frame 2. The limiting member is connected to the middle mass body, and the second sulfide frame is located outside the limiting member. The intermediate mass body is provided with a nut connected by threads on the outer side of the second vulcanized body frame.

2. The elastic cabin penetration vibration isolation device according to claim 1, characterized in that: The vulcanized body is annular and includes a rubber body and a cord fabric. The rubber body is used to wrap the cord fabric to form a whole. Two ends of the cord fabric extend out of the rubber body respectively.

3. The elastic cabin penetration vibration isolation device according to claim 2, characterized in that: It also includes a pair of steel wire rings, which are connected to the two ends of the cord fabric in a one-to-one correspondence. Both ends of the cord fabric extending out of the rubber body are respectively provided with perforations, and the wire ring is used to pass through the perforations of the cord fabric.

4. The elastic cabin penetration vibration isolation device according to claim 2, characterized in that: The rubber body is provided with an annular retaining ring at one end of the cord fabric, and a plurality of limiting holes are evenly distributed on the annular retaining ring; The annular retaining ring is used to contact the vulcanized body frame one, and the limiting hole is used to place screws connecting the vulcanized body frame one and the welding pad.

5. The elastic cabin penetration vibration isolation device according to claim 1, characterized in that: The intermediate mass body comprises a pair of vibration-damping body frames and a connecting piece, the pair of vibration-damping body frames are symmetrically arranged, and the connecting piece is connected between the pair of vibration-damping body frames; The limiting members are connected to the vibration-damping body frame in a one-to-one correspondence.

6. The elastic cabin penetration vibration isolation device according to claim 2, characterized in that: The vulcanized body skeleton is used to limit the cord fabric extending out of one end of the rubber body; The second vulcanized body skeleton is used to limit the cord fabric extending out of the other end of the rubber body.

7. The elastic cabin penetration vibration isolation device according to claim 1, characterized in that: An axial sealing O-ring is arranged between the vulcanized body frame 1 and the welding pad.

8. The elastic cabin penetration vibration isolation device according to claim 1, characterized in that: The limiting member is ring-shaped, and the outer diameter of the limiting member is larger than the inner diameter of the welding cushion tube.

9. The elastic cabin penetration vibration isolation device according to claim 1, characterized in that: The rubber layer includes a pair of rubber bodies, and the pair of rubber bodies are symmetrically arranged.

10. The elastic cabin penetration vibration isolation device according to claim 9, characterized in that: The rubber body is provided with an annular hole on the end surface, and the rubber body is provided with a cord fabric in the axial direction.

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