Shock absorption base of air compressor

Abstract

The utility model relates to the technical field of air compressor damping, in particular to an air compressor damping base which comprises two symmetrically-arranged connecting plates, a buffering mechanism is arranged between the connecting plates, one side, close to the buffering mechanism, of each connecting plate is in threaded connection with a connecting screw rod, and one side, away from the connecting screw rod, of each connecting plate is provided with a supporting mechanism. Vibration energy is converted into electric energy through a closed-loop feedback system of the piezoelectric ceramic piece and the energy storage circuit board, reverse damping force is generated, and self-sustaining type damping is achieved. The single-frequency-band attenuation limitation is broken through while external energy dependence is reduced, and the anti-displacement capacity and the damping efficiency are synchronously improved.

Description

Technical Field

[0001] This utility model relates to the field of air compressor vibration reduction technology, specifically an air compressor vibration reduction base. Background Technology

[0002] During operation, air compressors generate continuous and complex mechanical vibrations due to the periodic impacts of their internal moving parts, such as pistons and rotors. If these vibrations are not effectively suppressed, they will be directly transmitted to the mounting surface through the base, causing the equipment's fixing bolts to gradually loosen, and pipe connections to crack or even break due to fatigue stress. Simultaneously, the vibration energy can diffuse to surrounding structures, triggering resonance and exacerbating equipment wear and energy loss. Furthermore, the noise pollution associated with high-frequency vibrations not only affects the working environment but may also pose compliance risks due to exceeding occupational health and safety standards. Therefore, an air compressor vibration damping base is needed.

[0003] However, existing air compressor vibration damping bases typically rely on passive damping materials (such as homogeneous rubber), which cannot recover and utilize vibration energy and lack active vibration damping function, resulting in high energy consumption and limited vibration damping efficiency. At the same time, traditional vibration damping pads, due to their uniform material density and simple fixing structure, are difficult to meet the requirements of wide-frequency vibration absorption, and the connection between the base and the ground is prone to slippage or bolt loosening due to long-term vibration, resulting in poor stability. Utility Model Content

[0004] The purpose of this utility model is to provide a shock-absorbing base for an air compressor to solve the problems mentioned in the background art.

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

[0006] An air compressor vibration damping base includes two symmetrically arranged connecting plates, a buffer mechanism is provided between the connecting plates, a connecting screw is threaded to the side of the connecting plate near the buffer mechanism, and a support mechanism is provided on the side of the connecting plate away from the connecting screw.

[0007] The buffer mechanism includes a connecting rod that runs horizontally through the connecting plate. A piezoelectric ceramic sheet is embedded in the connecting rod. The piezoelectric ceramic sheet is connected to the energy storage circuit board via a wire. The energy storage circuit board is fixedly installed inside the control box.

[0008] Preferably, the buffer mechanism further includes assembly rods arranged parallel to both sides of the connecting rod. The assembly rods are fixedly connected to the connecting rod through assembly plates, and the assembly plates are provided with assembly screws for adjusting the spacing between the connecting plates.

[0009] Preferably, the control box is located between the assembly rods, and a cover is detachably installed on the top of the control box, which is locked in place by fixing screws.

[0010] Preferably, the support mechanism includes a trapezoidal plate that is perpendicularly connected to the connecting plate, a fixing screw is provided at the top of the trapezoidal plate, and a first through hole penetrating its thickness and symmetrically arranged first clamping holes are provided on the trapezoidal plate.

[0011] Preferably, the bottom of the trapezoidal plate is provided with a trapezoidal rubber pad, and the top of the trapezoidal rubber pad is provided with a second through hole corresponding to the first through hole and a second clamping hole corresponding to the first clamping hole, and the clamping screw is sequentially inserted into the first clamping hole and the second clamping hole.

[0012] Preferably, the bottom of the trapezoidal rubber pad is fixedly connected to a clamping plate, the top of the clamping plate is provided with a third through hole, and both sides are provided with clamping screw holes that are threaded to the clamping screw. The bottom surface of the clamping plate is provided with an anti-slip toothed strip.

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

[0014] This air compressor vibration damping base converts vibration energy into electrical energy and actively generates reverse damping force through a closed-loop feedback system of piezoelectric ceramic sheets and energy storage circuit boards, achieving energy-sustaining vibration damping and significantly reducing dependence on external energy.

[0015] This air compressor vibration damping base absorbs high-frequency and low-frequency vibrations through a gradient foaming structure of trapezoidal rubber pads. Combined with the interlocking anti-slip design of the toothed rack at the bottom of the clamping plate, it breaks through the single-frequency vibration damping limitation of traditional homogeneous materials and simultaneously improves the broadband attenuation rate and the base's anti-displacement capability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the trapezoidal rubber pad of this utility model;

[0019] Figure 4 This is a plan view of the buffer mechanism of this utility model.

[0020] In the diagram: 101, connecting plate; 102, buffer mechanism; 103, connecting screw; 104, support mechanism; 105, connecting rod; 106, piezoelectric ceramic sheet; 201, wire; 202, energy storage circuit board; 203, assembly rod; 204, assembly plate; 205, assembly screw; 206, control box; 301, box cover; 302, fixing screw; 303, trapezoidal plate; 304, fixing screw; 305, first through hole; 306, first clamping hole; 401, trapezoidal rubber pad; 402, second through hole; 403, second clamping hole; 404, clamping screw; 405, clamping plate; 406, third through hole; 501, clamping screw hole; 502, rack. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] An air compressor vibration damping base includes two symmetrically arranged connecting plates 101, a buffer mechanism 102 is provided between the connecting plates 101, a connecting screw 103 is threadedly connected to the side of the connecting plate 101 near the buffer mechanism 102, and a support mechanism 104 is provided on the side of the connecting plate 101 away from the connecting screw 103.

[0024] The buffer mechanism 102 includes a connecting rod 105 that runs horizontally through the connecting plate 101. A piezoelectric ceramic sheet 106 is embedded in the connecting rod 105. The piezoelectric ceramic sheet 106 is connected to the energy storage circuit board 202 through a wire 201. The energy storage circuit board 202 is fixedly installed in the control box 206.

[0025] The above scheme achieves a separate connection between the base, the air compressor, and the ground through symmetrically arranged connecting plates to ensure controllable vibration transmission path. The vibration is transmitted to the piezoelectric ceramic sheet through the connecting rod in the buffer mechanism, and the vibration energy is directly offset by the piezoelectric effect. The mechanical energy is converted into electrical energy and stored and fed back to form active damping by connecting the piezoelectric ceramic sheet and the energy storage circuit board through wires. The support mechanism, together with the connecting plate, forms a triangular stable structure to disperse the load pressure of the air compressor.

[0026] In this embodiment, preferably, the buffer mechanism 102 further includes assembly rods 203 arranged parallel to both sides of the connecting rod 105. The assembly rods 203 are fixedly connected to the connecting rod 105 through an assembly plate 204. The assembly plate 204 is provided with assembly screws 205 for adjusting the spacing between the connecting plates 101.

[0027] The above scheme enhances the overall rigidity of the buffer mechanism by using parallel assembly rods to prevent structural deformation caused by multi-directional vibration. The assembly plates fix the assembly rods and connecting rods to form multiple anti-torsional support points. The assembly screws adjust the spacing of the connecting plates to adapt to the installation requirements of air compressors of different specifications.

[0028] In this embodiment, preferably, the control box 206 is disposed between the assembly rods 203, and a cover 301 is detachably installed on the top of the control box 206, and the cover 301 is locked by fixing screws 302.

[0029] The above solution avoids short circuits caused by humid or oily environments by sealing the integrated energy storage circuit board in the control box. The removable cover and fixing screws enable quick maintenance or replacement of circuit components. The energy storage circuit board centrally manages the electrical energy generated by the piezoelectric ceramic sheet, optimizing energy recovery efficiency.

[0030] In this embodiment, preferably, the support mechanism 104 includes a trapezoidal plate 303 that is perpendicularly connected to the connecting plate 101. The top of the trapezoidal plate 303 is provided with a fixing screw 304. The trapezoidal plate 303 has a first through hole 305 that penetrates its thickness and symmetrically arranged first clamping holes 306.

[0031] The above solution utilizes a stable support frame formed by the vertical connection of the trapezoidal plate and the connecting plate to distribute the weight of the air compressor. Quick positioning and installation are achieved by aligning the fixing screws with the air compressor's feet. Alignment of the first through hole with the ground hole ensures the base is vertically fixed. The first clamping hole, in conjunction with the clamping screws, restricts the displacement of the trapezoidal rubber pad.

[0032] In this embodiment, preferably, the bottom of the trapezoidal plate 303 is provided with a trapezoidal rubber pad 401, and the top of the trapezoidal rubber pad 401 is provided with a second through hole 402 corresponding to the first through hole 305 and a second clamping hole 403 corresponding to the first clamping hole 306. The clamping screw 404 is sequentially inserted into the first clamping hole 306 and the second clamping hole 403.

[0033] The above solution utilizes the gradient foaming structure of the trapezoidal rubber pad to absorb vibrations of different frequencies in layers, thereby overcoming the limitations of the vibration reduction frequency band of traditional rubber pads. The clamping screws connecting the second clamping hole and the first clamping hole prevent lateral displacement of the rubber pad after compression. The wedge-shaped structure of the trapezoidal rubber pad increases the contact area and improves the uniformity of energy dissipation.

[0034] In this embodiment, preferably, the bottom of the trapezoidal rubber pad 401 is fixedly connected to a clamping plate 405, the top of the clamping plate 405 is provided with a third through hole 406, and both sides are provided with clamping screw holes 501 that are threadedly engaged with the clamping screw 404. The bottom surface of the clamping plate 405 is provided with an anti-slip toothed rack 502.

[0035] The above solution significantly increases static friction by having the rack at the bottom of the clamping plate engage with the rough surface of the ground to suppress base slippage. The self-locking design of the clamping screw hole and the clamping screw prevents the nut from loosening due to long-term vibration. The third through hole, in conjunction with the second through hole, disperses the shear stress of the bolt assembly and extends the life of the connector.

[0036] In this embodiment, a vibration damping base for an air compressor is used such that, through a clamping screw 404 passing through the first clamping hole 306 and the second clamping hole 403, it is threadedly connected to the clamping screw hole 501, thereby clamping and fixing the trapezoidal rubber pad 401 between the trapezoidal plate 303 and the clamping plate 405. After the trapezoidal rubber pad 401 is fixed, holes are pre-drilled in the ground, and then bolt assemblies are used to connect to the ground holes through the first through hole 305, the second through hole 402, and the third through hole 406, thereby fixing the entire base. When the bolt assembly is fixed, the rack 502 at the bottom end of the clamping plate 405 adopts a serrated design. This increases friction with the ground, preventing significant shifts in the base during vibrations and ensuring the stability of the bolt assembly. It further prevents gaps between the base and the ground from causing increased vibration and compressor shaking during vibration. After the base is fixed, the fixing screws 304 are aligned with the bottom corners of the air compressor and tightened with nuts. When the air compressor vibrates during operation, the vibration force is absorbed by the trapezoidal rubber pad 401, which uses hydrogenated nitrile butadiene rubber (HNBR) as its main material. The trapezoidal rubber pad 401 is designed for phased control... The warm vulcanization process forms a three-layered gradient foam structure inside the trapezoidal rubber pad 401. The top high-elasticity layer absorbs high-frequency vibrations, and the bottom high-density layer suppresses low-frequency resonance, thereby reducing the vibration of the air compressor. Compared with traditional homogeneous rubber pads, it breaks through the limitation of single-frequency band vibration reduction, significantly improves wideband adaptability, and significantly optimizes pressure deformation resistance and durability. Moreover, while the air compressor vibrates, the vibration is transmitted to the piezoelectric ceramic sheet 106 through the connecting rod 105, causing the piezoelectric ceramic sheet 106 to generate charge separation due to mechanical deformation, forming a reverse electric field force opposite to the vibration direction to directly resist the vibration. Vibration energy is eliminated, and the electrical energy generated by the piezoelectric effect is transmitted to the energy storage circuit board 202 (PVC circuit board integrated capacitor) through the wire 201 for rectification and storage. The stored electrical energy is then fed back to the piezoelectric ceramic sheet 106 to form an active reverse excitation electric field amplification damping effect. This adaptive closed-loop system of "mechanical vibration-electric energy conversion-active vibration suppression-energy recovery" continuously weakens the amplitude while converting the residual kinetic energy into usable electrical energy. This enables the vibration damping base to achieve multi-level energy dissipation and reduce external energy dependence in a wide frequency band vibration environment, forming a self-sustaining vibration damping enhancement effect.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vibration damping base for an air compressor, characterized in that: It includes two symmetrically arranged connecting plates (101), a buffer mechanism (102) is provided between the connecting plates (101), a connecting screw (103) is threadedly connected to the side of the connecting plate (101) near the buffer mechanism (102), and a support mechanism (104) is provided on the side of the connecting plate (101) away from the connecting screw (103). The buffer mechanism (102) includes a connecting rod (105) that runs horizontally through the connecting plate (101). A piezoelectric ceramic sheet (106) is embedded in the connecting rod (105). The piezoelectric ceramic sheet (106) is connected to the energy storage circuit board (202) through a wire (201). The energy storage circuit board (202) is fixedly installed in the control box (206).

2. The air compressor vibration damping base according to claim 1, characterized in that: The buffer mechanism (102) further includes an assembly rod (203) arranged parallel to both sides of the connecting rod (105). The assembly rod (203) is fixedly connected to the connecting rod (105) through an assembly plate (204). The assembly plate (204) is provided with an assembly screw (205) for adjusting the spacing between the connecting plates.

3. The air compressor vibration damping base according to claim 2, characterized in that: The control box (206) is located between the assembly rods (203). A cover (301) is detachably installed on the top of the control box (206). The cover (301) is locked by a fixing screw (302).

4. The air compressor vibration damping base according to claim 1, characterized in that: The support mechanism (104) includes a trapezoidal plate (303) that is perpendicularly connected to the connecting plate (101). The top of the trapezoidal plate (303) is provided with a fixing screw (304). The trapezoidal plate (303) has a first through hole (305) that penetrates its thickness and a first clamping hole (306) that is symmetrically arranged.

5. The air compressor vibration damping base according to claim 4, characterized in that: The trapezoidal plate (303) has a trapezoidal rubber pad (401) at the bottom, and the trapezoidal rubber pad (401) has a second through hole (402) corresponding to the first through hole (305) and a second clamping hole (403) corresponding to the first clamping hole (306) at the top. The clamping screw (404) is sequentially inserted into the first clamping hole (306) and the second clamping hole (403).

6. The air compressor vibration damping base according to claim 5, characterized in that: The trapezoidal rubber pad (401) is fixedly connected to a clamping plate (405) at the bottom. The clamping plate (405) has a third through hole (406) at the top and clamping screw holes (501) on both sides that are threaded to the clamping screw (404). The bottom surface of the clamping plate (405) is provided with an anti-slip toothed strip (502).

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