Damping rubber mat for compressor

Abstract

The utility model relates to a compressor accessory technical field especially relates to a kind of shock-absorbing rubber mat for compressor, it is characterized in that, including from top to bottom coaxial arrangement and by vulcanization process integrated moulding shock-absorbing layer and support layer, the shore hardness of the shock-absorbing layer is less than the shore hardness of the support layer;Annular metal framework is embedded in the inside of the support layer, and the metal framework is embedded in the first annular cavity formed in support layer;Second annular cavity is equipped in the shock-absorbing layer, and annular hollow groove is set up with the first annular cavity coaxial arrangement on the outer circumferential side wall of the shock-absorbing layer;Compared with prior art, through the layered design of shock-absorbing layer plus support layer, the hardness difference characteristics of the combination of both are realized simultaneously Shock-absorbing and supporting performance of shock-absorbing foot pad;Metal framework adopts wave shape structure and surface anchoring hole design, can increase the contact area with support layer rubber, simultaneously with the aid of the "mechanical occlusion" effect formed when rubber vulcanization, the connection strength of framework and support layer is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of compressor parts technology, and in particular to a vibration damping pad for compressors. Background Technology

[0002] Compressors are widely used in refrigeration equipment or industrial gas conveying equipment. During operation, they generate continuous vibrations due to the operation of the motor and the reciprocating motion of the piston. If the vibrations are directly transmitted to the equipment casing or mounting foundation, they will not only generate noise, but may also cause pipeline loosening, component wear, and shorten the service life of the equipment.

[0003] Existing compressor vibration damping pads are mostly made of a single rubber material, which presents the problem of "difficulty in achieving both vibration damping effect and support strength": if the rubber hardness is low, the vibration damping effect is good but the load-bearing capacity is weak, and permanent deformation is likely to occur; if the rubber hardness is high, the support is strong but the vibration damping capacity is poor, and the vibration transmission rate is high; although some pads have built-in metal skeletons to enhance support, the metal skeletons are not firmly bonded to the rubber layer, and after long-term vibration, they are prone to displacement and detachment, leading to support failure; at the same time, the pads generate heat due to vibration and friction during operation, and the existing structure lacks an effective heat dissipation channel, and the heat accumulation is prone to rubber aging, further reducing vibration damping performance. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a vibration damping pad for compressors.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vibration damping pad for a compressor, characterized in that it comprises a damping layer and a support layer coaxially arranged from top to bottom and integrally formed by a vulcanization process, wherein the Shore hardness of the damping layer is less than that of the support layer; an annular metal skeleton is embedded inside the support layer, the metal skeleton being embedded in a first annular cavity formed within the support layer; a second annular cavity is provided within the damping layer, and an annular hollow groove coaxially arranged with the first annular cavity is formed on the outer peripheral sidewall of the damping layer.

[0007] Furthermore, the metal skeleton has a ring-shaped wave structure with a wave-shaped cross-section and multiple anchoring holes stamped on its surface.

[0008] Furthermore, the metal skeleton is arranged asymmetrically about the axial center of the support layer.

[0009] Furthermore, the second annular cavity is connected to the annular hollow groove through a first channel; the bottom surface of the support layer is provided with a ventilation hole, which is connected to the second annular cavity through a second channel.

[0010] Furthermore, the annular hollow groove is a wavy annular groove or a honeycomb annular groove.

[0011] Furthermore, the top surface of the damping layer is uniformly provided with a plurality of first protrusions; the bottom surface of the support layer is uniformly provided with a plurality of second protrusions.

[0012] Furthermore, the first channel and the second channel are spiral channels.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Compared with existing technologies, this technology achieves both shock absorption and support performance of the shock-absorbing pads through a layered design of a damping layer and a support layer, combined with the difference in hardness between the two. The metal frame adopts a wave-shaped structure and surface anchoring hole design, which increases the contact area with the rubber support layer. At the same time, the "mechanical interlocking" effect formed during rubber vulcanization strengthens the connection strength between the frame and the support layer, preventing frame displacement caused by long-term vibration. The asymmetrical arrangement of the frame can adapt to the vibration differences in different areas of the compressor, improving the overall stability of the shock-absorbing pad. The ventilation channel design improves the heat dissipation efficiency of traditional shock-absorbing pads, delays rubber aging, and extends the service life of the shock-absorbing pads. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the vibration damping pad for the compressor proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of the vibration damping pad for the compressor proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the metal frame in the compressor vibration damping pad proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the honeycomb annular groove in the compressor damping pad proposed in this utility model. In the figure: 1-support layer, 101-first annular cavity, 102-first protrusion, 2-damping layer, 201-annular hollow groove, 202-second annular cavity, 203-second protrusion, 3-support, 4-metal frame, 401-ventilation hole, 402-anchoring hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, this embodiment provides a vibration damping pad for a compressor, characterized in that it includes a damping layer 2 and a support layer 1, which are coaxially arranged from top to bottom and integrally formed by a vulcanization process. The Shore hardness of the damping layer 2 is less than that of the support layer 1. An annular metal skeleton 4 is embedded inside the support layer 1, and the metal skeleton 4 is embedded in a first annular cavity 101 formed inside the support layer 1. A second annular cavity 202 is provided inside the damping layer 2, and an annular hollow groove 201 coaxially arranged with the first annular cavity 101 is formed on the outer peripheral sidewall of the damping layer 2.

[0021] Overall, the main structure consists of a damping layer 2 and a support layer 1 arranged coaxially from top to bottom. The two are integrally formed through a vulcanization process to ensure structural integrity and avoid delamination. The Shore hardness of the damping layer 2 is lower than that of the support layer 1. The damping layer 2 focuses on deformation vibration absorption, while the support layer 1 focuses on load-bearing stability. The bottom of the support layer 1 has multiple supports 3 integrally formed with it, which facilitates the installation and disassembly of the overall structure. The support layer 1 has a first annular cavity 101 inside, and an annular metal skeleton 4 is embedded in the cavity. The metal skeleton 4 provides rigid support for the support layer 1 and prevents the rubber pad from being excessively deformed under pressure. The damping layer 2 has a second annular cavity 202 inside, and an annular hollow groove 201 coaxial with the first annular cavity 101 is formed on the outer peripheral sidewall. The second annular cavity 202 and the annular hollow groove 201 can increase the deformation space of the damping layer 2 and enhance its vibration absorption capacity.

[0022] like Figures 2-3 As shown, in this embodiment, the metal skeleton 4 has an annular wave-shaped structure with a wave-shaped cross-section and multiple anchoring holes 402 stamped on its surface.

[0023] Specifically, the metal skeleton 4 adopts an annular wave-shaped structure with a continuous "peak-valley" wave-shaped cross-section. Multiple circular anchoring holes 402, with a diameter of 3-5 mm, are stamped on the skeleton surface and arranged in a circumferential array around the metal skeleton 4. By embedding the metal skeleton 4 into the first annular cavity 101 of the support layer 1, the wave-shaped "peak-valley" structure increases the contact area with the rubber. Simultaneously, the rubber of the support layer 1 embeds into the anchoring holes 402 during vulcanization, forming a "mechanical interlocking" structure. The wave-shaped structure and the anchoring holes 402 work synergistically to significantly improve the connection strength between the metal skeleton 4 and the support layer 1, preventing skeleton displacement caused by long-term vibration. Furthermore, the wave-shaped skeleton itself possesses a certain degree of elasticity, which can help absorb some high-frequency vibrations, further optimizing the vibration damping adaptability of the support layer 1.

[0024] like Figure 2 As shown, in this embodiment, the metal skeleton 4 is arranged asymmetrically about the axial center of the support layer 1.

[0025] Specifically, the metal frame 4 is asymmetrically arranged about the axial center of the support layer 1. Relative to the axial centerline of the support layer 1, the embedding depth of the metal frame 4 closer to the compressor input side is greater than that farther from the input side. When the compressor is working, the vibration intensity closer to the motor input side is usually higher than that on the other side. The asymmetrical arrangement of the metal frame 4 can create a "gradient stiffness" in the support layer 1: the support stiffness on the side with stronger vibration is slightly lower (shallow embedding, high rubber ratio), and the support stiffness on the side with weaker vibration is slightly higher (deep embedding, high metal ratio). This structure adapts to the non-uniform vibration distribution characteristics of the compressor, avoiding the problems of "excessive rigidity leading to high local vibration transmission rate" or "insufficient rigidity leading to insufficient local load-bearing capacity", thus improving the directional vibration reduction effect.

[0026] like Figure 2 As shown, in this embodiment, the second annular cavity 202 is connected to the annular hollow groove 201 through a first channel; the bottom surface of the support layer 1 is provided with a ventilation hole 401, which is connected to the second annular cavity 202 through a second channel.

[0027] Specifically, the damping layer 2 has multiple second annular cavities 202, and adjacent second annular cavities 202 are interconnected. The second annular cavities 202 are connected to the annular hollow grooves 201 through multiple evenly distributed first channels. The bottom surface of the support layer 1 has multiple ventilation holes 401, and each ventilation hole 401 is connected to the second annular cavity 202 through a second channel. The airflow path is: outside → outside air → ventilation hole 401 on the bottom surface of the support layer 1 → second channel → second annular cavity 202 → first channel → annular hollow groove 201 → outside; forming a closed-loop ventilation system. The heat generated by the rubber pad during operation can be discharged with the airflow, and at the same time, cold outside air can enter the cavity to cool it down. By constructing an active heat dissipation channel, the frictional heat and deformation heat during the operation of the rubber pad can be discharged in time, which can reduce the working temperature of the rubber pad, effectively delay the thermal aging of the rubber, and extend the service life of the rubber pad.

[0028] like Figure 1 and Figure 4 As shown, in this embodiment, the annular hollow groove 201 is a wavy annular groove or a honeycomb annular groove.

[0029] Specifically, the annular perforated groove 201 has two structures: a wavy annular groove, the cross-section of which is shaped like a sine wave with a distance of 8-10 mm between the crests and troughs; and a honeycomb annular groove, which is composed of multiple regular hexagonal cavities, each with a side length of 5-6 mm and a wall thickness of 2-3 mm. The wavy annular groove can increase the "buffer path" when the damping layer 2 deforms, while the honeycomb annular groove improves the deformation resistance of the damping layer 2 through its multi-chamber structure. The wavy annular groove is suitable for compressors with low vibration frequencies (50-100 Hz), and the vibration reduction rate can be effectively improved. The honeycomb annular groove is suitable for compressors with high vibration frequencies (100-200 Hz), and while ensuring the vibration reduction effect, it can reduce the permanent deformation of the rubber pad.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the top surface of the damping layer 2 is uniformly provided with a plurality of first protrusions 102; the bottom surface of the support layer 1 is uniformly provided with a plurality of second protrusions 203.

[0031] Specifically, the top surface of the vibration damping layer 2 is uniformly provided with multiple first protrusions 102; the bottom surface of the support layer 1 is uniformly provided with multiple second protrusions 203; when the first protrusions 102 contact the bottom of the compressor, they can increase the friction (preventing the compressor from sliding laterally), and the deformation of the protrusions can help absorb high-frequency micro-vibrations; when the second protrusions 203 contact the mounting base, they can adapt to the slight unevenness of the base surface and improve the fit; the setting of the first protrusions 102 can increase the sliding friction between the compressor and the rubber pad, and the second protrusions 203 can increase the fit rate between the rubber pad and the mounting base, effectively avoiding the displacement problem of the compressor during operation.

[0032] like Figure 2 As shown, in this embodiment, the first channel and the second channel are spiral channels.

[0033] Specifically, both the first and second channels adopt a spiral structure; the spiral channel can extend the residence time of the airflow in the channel, while the spiral wall can enhance the structural strength of the rubber around the channel and avoid local stress concentration caused by the straight channel; by extending the residence time of the airflow, the heat dissipation efficiency can be further improved; the spiral structure can further improve the breaking strength of the rubber in the channel area and prevent the channel from cracking after long-term use.

[0034] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A vibration damping pad for a compressor, characterized in that, The system includes a damping layer (2) and a support layer (1) that are coaxially arranged from top to bottom and integrally formed by vulcanization. The Shore hardness of the damping layer (2) is less than that of the support layer (1). An annular metal skeleton (4) is embedded inside the support layer (1), and the metal skeleton (4) is embedded in a first annular cavity (101) formed inside the support layer (1). A second annular cavity (202) is provided inside the damping layer (2), and an annular hollow groove (201) coaxially arranged with the first annular cavity (101) is opened on the outer peripheral sidewall of the damping layer (2).

2. The compressor damping pad according to claim 1, characterized in that, The metal skeleton (4) has a ring-shaped wave structure with a wave-shaped cross-section and multiple anchoring holes (402) stamped on its surface.

3. The compressor damping pad according to claim 1 or 2, characterized in that, The metal skeleton (4) is arranged asymmetrically about the axial center of the support layer (1).

4. The vibration damping pad for a compressor according to claim 1, characterized in that, The second annular cavity (202) is connected to the annular hollow groove (201) through a first channel; the bottom surface of the support layer (1) is provided with a ventilation hole (401), which is connected to the second annular cavity (202) through a second channel.

5. The vibration damping pad for a compressor according to claim 1, characterized in that, The annular hollow groove (201) is a wavy annular groove or a honeycomb annular groove.

6. The vibration damping pad for a compressor according to claim 1, characterized in that, The top surface of the damping layer (2) is uniformly provided with a plurality of first protrusions (102); the bottom surface of the support layer (1) is uniformly provided with a plurality of second protrusions (203).

7. The vibration damping pad for a compressor according to claim 4, characterized in that, The first channel and the second channel are spiral channels.

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