Shock absorber for explosion-proof frequency converter

Abstract

The utility model discloses a shock absorber for an explosion-proof frequency converter, which relates to the technical field of explosion-proof frequency converter accessories and comprises a base, a first elastic piece is connected inside the base, a second elastic piece is connected inside the first elastic piece, and an air bag is connected inside the second elastic piece. Reinforcing layers are arranged on the inner walls of the air bags, and first bundle layers are connected into the air bags. Through the arrangement of the first elastic piece, the second elastic piece, the air bag, the first bundle layer, the second bundle layer and the reinforcing layer, the first elastic piece and the second elastic piece serve as elastic supporting parts to play a role in flexible connection for buffering and follow-up resetting, meanwhile, force generated by vibration is absorbed through deformation generated by the air bag, and therefore the damping effect is improved. The air bag deforms, so that air flows in the air bag and rubs with each other, vibration energy is dissipated, vibration is effectively reduced, the springback strength of the first elastic piece and the second elastic piece is reduced, and shaking caused by springback of the first elastic piece and the second elastic piece is reduced; the buffering effect is good, and vibration pairs are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof frequency converter accessories, specifically a shock absorber for explosion-proof frequency converters. Background Technology

[0002] Explosion-proof frequency converters are power transmission components of AC motors that use frequency conversion technology and microelectronics technology to control the power supply frequency and amplitude of the motor. They can achieve high-precision torque control of high-power motors, soft start, soft stop and process control of high-power motors, power balance during motor operation, regenerative braking and energy feedback during four-quadrant operation, and energy saving and emission reduction effects.

[0003] An explosion-proof vibration damper for a frequency converter, with application number 201520549943.X, is installed between the centrifuge base and the distribution box of the explosion-proof frequency converter. The vibration damper includes a fixed base plate and a damping disc. The lower end face of the fixed base plate is fixedly mounted on the centrifuge base, and the upper end face of the damping disc is fixedly mounted on the distribution box of the explosion-proof frequency converter. The fixed base plate and the damping disc are connected by connecting bolts. Several damping springs are provided in the rod area between the fixed base plate and the damping disc. One end of each damping spring abuts against the upper end face of the fixed base plate, and the other end abuts against the lower end face of the damping disc, achieving a flexible connection between the distribution box and the centrifuge. The damping springs absorb vibration energy through the fixed base plate and the damping disc, reducing the failure rate of the distribution box and improving work efficiency.

[0004] This technical solution absorbs vibration energy through springs, but springs have a certain degree of elasticity. Therefore, due to the elasticity of the springs, the explosion-proof frequency converter will shake for a period of time after vibration. As the kinetic energy is continuously consumed by the springs, it will return to calm. The process takes a long time, which makes it easy for components and cables to fall off or collide due to the shaking. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a shock absorber for explosion-proof frequency converters to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber for an explosion-proof frequency converter, comprising a base, wherein a first spring is connected inside the base, and a second spring is connected inside the first spring, and an airbag is connected inside the second spring; and a reinforcing layer is provided on the inner wall of the airbag, a first bundle layer is connected inside the airbag, and a second bundle layer is connected to the outer surface of the airbag.

[0007] By adopting the above technical solution, the first and second spring sheets serve as elastic support components, acting as flexible connections for buffering and subsequent reset. At the same time, the deformation of the airbag absorbs the force generated by vibration, and the deformation of the airbag causes the gas to flow and rub against each other inside the airbag, dissipating vibration energy, thereby effectively reducing vibration and reducing the rebound force of the first and second spring sheets to reduce the shaking caused by the rebound of the first and second spring sheets. Meanwhile, the first bundle layer, the second bundle layer, and the reinforcing layer increase the structural strength of the airbag and prevent the airbag from expanding and bursting.

[0008] Furthermore, the first spring is fixedly connected to the second spring by welding, and the first spring and the second spring are perpendicularly distributed.

[0009] By adopting the above technical solution, the first and second springs are vertically distributed and fixedly connected, which facilitates the bearing of lateral forces and avoids vibration causing the first and second springs to move left and right or back and forth.

[0010] Furthermore, both the first and second springs are made of spring steel, and both the first and second springs are coated with an anti-corrosion coating.

[0011] By adopting the above technical solution, the spring steel has good elasticity, which can effectively support and buffer the explosion-proof frequency converter. In addition, the anti-corrosion coating prevents the spring steel from oxidizing and rusting, which could cause the first and second spring sheets to break and cause the explosion-proof frequency converter to become unbalanced and tip over.

[0012] Furthermore, the first and both sides of the spring, the outer surface of the second spring, and the back of the second spring are all arc-shaped.

[0013] By adopting the above technical solution, the first and second spring sheets serve as elastic support components, playing a role in flexible connection for buffering and subsequent reset.

[0014] Furthermore, both the first and second bundle layers are made of nylon material.

[0015] By adopting the above technical solution, the airbag is wrapped and restrained by the first and second bundle layers to ensure the shape of the airbag. At the same time, the pressure on the airbag is distributed by the reinforcement layer, thereby extending the service life of the airbag.

[0016] Furthermore, the reinforcing layer is made of woven steel wire.

[0017] By adopting the above technical solution, the shape of the airbag is guaranteed by the setting of the reinforcement layer, and the phenomenon of airbag expansion or contraction is avoided, thereby increasing the structural strength of the airbag.

[0018] Furthermore, a connecting seat is provided at the top of the first spring piece, and a screw passes through the top of the connecting seat.

[0019] By adopting the above technical solution, the connector can be easily connected to the explosion-proof frequency converter, and the screw makes it easy to replace a damaged part, thus extending the service life of the shock absorber.

[0020] Furthermore, both the base and the connecting seat are detachably connected to the first spring piece via screws, and the airbag is detachably connected to the second spring piece via screws.

[0021] By adopting the above technical solution, when a component is damaged, the screw can be removed, and then the base and connecting seat can be separated from the first and second springs for replacement, or the airbag can be pried out from the first and second springs and a new airbag can be inserted, and then the screw can be reinstalled to complete the limiting.

[0022] Furthermore, bolts are threaded through both sides of the connecting seat, and the bolts are threadedly connected to the connecting seat.

[0023] By adopting the above technical solution, the support feet of the explosion-proof frequency converter are placed into the connecting seat, and then the bolts are tightened to abut against the support feet of the explosion-proof frequency converter, thereby completing the connection between the explosion-proof frequency converter and this shock absorber.

[0024] In summary, the present invention has the following main advantages:

[0025] This invention utilizes a first elastic sheet, a second elastic sheet, an airbag, a first bundle layer, a second bundle layer, and a reinforcing layer. The first and second elastic sheets act as elastic support components, providing a flexible connection for buffering and subsequent reset. Simultaneously, the deformation of the airbag absorbs the force generated by vibration, and the deformation of the airbag causes the gas to flow and rub against each other within the airbag, dissipating vibration energy and effectively reducing vibration. It also reduces the rebound force of the first and second elastic sheets, thereby reducing the shaking caused by their rebound. Furthermore, the first bundle layer, the second bundle layer, and the reinforcing layer increase the structural strength of the airbag, preventing it from bursting upon expansion. The overall buffering effect is good, effectively reducing the impact of vibration. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the airbag of this utility model;

[0029] Figure 4 This is a schematic diagram of the airbag explosion structure of this utility model.

[0030] In the diagram: 1. Base; 2. Connecting seat; 3. Bolt; 4. First spring; 5. Second spring; 6. Airbag; 7. Screw; 8. First bundle layer; 9. Second bundle layer; 10. Reinforcing layer. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] Example 1:

[0034] A shock absorber for explosion-proof frequency converters, such as Figures 1-4 As shown, the device includes a base 1, with a first spring 4 connected inside the base 1. A second spring 5 is connected inside the first spring 4. The first spring 4 is fixedly connected to the second spring 5 by welding. The first spring 4 and the second spring 5 are perpendicularly distributed. Both the first spring 4 and the second spring 5 are made of spring steel and have an anti-corrosion coating. The first spring 4 and its sides, as well as the outer surface and back of the second spring 5, are all arc-shaped. The first spring 4 and the second spring 5 act as elastic support components, providing a flexible connection for buffering and subsequent reset. An airbag 6 is connected inside the second spring 5. The deformation absorbs the force generated by vibration, and the deformation of the airbag 6 causes the gas to flow and rub against each other inside the airbag 6 to dissipate vibration energy, thereby effectively reducing vibration and reducing the rebound force of the first spring 4 and the second spring 5 to reduce the shaking caused by the rebound of the first spring 4 and the second spring 5. The inner wall of the airbag 6 is provided with a reinforcing layer 10, which is made of steel wire. The first bundle layer 8 is connected inside the airbag 6, and the second bundle layer 9 is connected to the outer surface of the airbag 6. The first bundle layer 8 and the second bundle layer 9 are both made of nylon material. The first bundle layer 8, the second bundle layer 9 and the reinforcing layer 10 increase the structural strength of the airbag 6 and prevent the airbag 6 from expanding and bursting.

[0035] See Figure 1 and Figure 2 In the above embodiment, a connecting seat 2 is provided on the top of the first spring plate 4, and a screw 7 passes through the top of the connecting seat 2. The base 1 and the connecting seat 2 are detachably connected to the first spring plate 4 through the screw 7. The airbag 6 is detachably connected to the second spring plate 5 through the screw 7. When a component is damaged, the screw 7 is removed, and then the base 1 and the connecting seat 2 can be separated from the first spring plate 4 and the second spring plate 5 for replacement, or the airbag 6 can be pried out from the inside of the first spring plate 4 and the second spring plate 5 and a new airbag 6 can be inserted. Then the screw 7 is reinstalled to complete the limiting.

[0036] Example 2:

[0037] Based on the above embodiment one, in order to facilitate the connection between the explosion-proof frequency converter and this shock absorber, the following settings are now adopted.

[0038] See Figure 1 and Figure 2 In the above embodiment, bolts 3 are threaded through both sides of the connecting seat 2. The bolts 3 are threaded to the connecting seat 2. The support feet of the explosion-proof frequency converter are placed into the connecting seat 2, and then the bolts 3 are tightened to press against the support feet of the explosion-proof frequency converter, thereby completing the connection between the explosion-proof frequency converter and the shock absorber.

[0039] The implementation principle of this utility model is as follows: First, the support foot of the explosion-proof frequency converter is placed into the connecting seat 2, and then the bolt 3 is tightened to abut against the support foot of the explosion-proof frequency converter, thereby completing the connection and limiting of the explosion-proof frequency converter and this shock absorber.

[0040] When the explosion-proof frequency converter vibrates, the first spring plate 4 and the second spring plate 5 act as elastic support components, providing a flexible connection for buffering and subsequent reset. At the same time, the airbag 6 deforms to absorb the force generated by the vibration, and the deformation of the airbag 6 causes the gas to flow and rub against each other inside the airbag 6 to dissipate the vibration energy, thereby effectively reducing the vibration and reducing the rebound force of the first spring plate 4 and the second spring plate 5 to reduce the shaking caused by the rebound of the first spring plate 4 and the second spring plate 5. Meanwhile, the first bundle layer 8, the second bundle layer 9 and the reinforcing layer 10 increase the structural strength of the airbag 6 to prevent the airbag 6 from expanding and bursting.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A shock absorber for an explosion-proof frequency converter, comprising a base (1), characterized in that: The base (1) is internally connected to a first spring (4), and the first spring (4) is internally connected to a second spring (5), and the second spring (5) is internally connected to an airbag (6); and the inner wall of the airbag (6) is provided with a reinforcing layer (10), the airbag (6) is internally connected to a first bundle layer (8), and the outer surface of the airbag (6) is connected to a second bundle layer (9).

2. The shock absorber for explosion-proof frequency converters according to claim 1, characterized in that: The first spring piece (4) is fixedly connected to the second spring piece (5) by welding, and the first spring piece (4) and the second spring piece (5) are perpendicularly distributed.

3. The shock absorber for explosion-proof frequency converters according to claim 2, characterized in that: The first spring (4) and the second spring (5) are both made of spring steel, and the surfaces of the first spring (4) and the second spring (5) are coated with an anti-corrosion coating.

4. The shock absorber for explosion-proof frequency converters according to claim 3, characterized in that: The first spring (4) and its two sides, the outer surface of the second spring (5) and the back of the second spring (5) are all arc-shaped.

5. The shock absorber for explosion-proof frequency converters according to claim 1, characterized in that: Both the first bundle layer (8) and the second bundle layer (9) are made of nylon material.

6. The shock absorber for explosion-proof frequency converters according to claim 1, characterized in that: The reinforcing layer (10) is woven from steel wire.

7. The shock absorber for explosion-proof frequency converters according to claim 1, characterized in that: The first spring piece (4) is provided with a connecting seat (2) at the top, and a screw (7) passes through the top of the connecting seat (2).

8. The shock absorber for explosion-proof frequency converters according to claim 7, characterized in that: The base (1) and the connecting seat (2) are both detachably connected to the first spring piece (4) via screws (7), and the airbag (6) is detachably connected to the second spring piece (5) via screws (7).

9. The shock absorber for explosion-proof frequency converters according to claim 7, characterized in that: Bolts (3) are threaded through both sides of the connecting seat (2), and the bolts (3) are threadedly connected to the connecting seat (2).

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