An axial damping buffer device for a flywheel energy storage system

Abstract

The application discloses a kind of axial damping buffering device for flywheel energy storage system in the technical field of flywheel energy storage system damping reduction, including base, buffer base and the mounting seat for installing flywheel energy storage system device body, the mounting seat is fixed in the buffer base top, the top edge of the base is fixed with enclosure;Between the base and the buffer base, axial damping buffering structure is connected, including first axial damping buffering component, second axial damping buffering component, damping component and sealing protection component.The application carries out axial damping buffering operation to flywheel energy storage system device body by double damping reduction mode, greatly improves the axial damping buffering effect of flywheel energy storage system device body, and axial damping buffering mechanism can also have the function of positioning flywheel energy storage system device body, so that flywheel energy storage system device body can be well assisted positioning installation in base center, rich function, suitable for promotion.

Description

Technical Field

[0001] This invention relates to an axial vibration damping device for a flywheel energy storage system, belonging to the field of vibration damping technology for flywheel energy storage systems. Background Technology

[0002] Flywheel energy storage system is an electromechanical energy conversion and storage device, belonging to physical energy storage. The flywheel energy storage system stores kinetic energy in the form of high-speed rotation of the flywheel body, and completes the conversion between kinetic energy and electrical energy through an electric generator coaxial with the flywheel body. It has advantages such as fast response speed, high charge and discharge cycles, high conversion efficiency, zero attenuation, low maintenance cost, and small environmental impact.

[0003] Currently, axial damping and buffering of flywheel energy storage systems are usually achieved by adding damping pads and other structures. This not only results in poor buffering effect but also has a limited function. The damping structure only has the function of damping and cannot effectively assist the flywheel energy storage system in positioning and installation. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an axial vibration damping and buffering device for a flywheel energy storage system. This device can perform axial vibration damping and buffering operations on the flywheel energy storage system body through a dual vibration damping method, and the axial vibration damping and buffering mechanism can also have the function of positioning the flywheel energy storage system body.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution: In a first aspect, the present invention provides an axial vibration damping device for a flywheel energy storage system, comprising a base, a buffer base, and a mounting seat for mounting the flywheel energy storage system body. The mounting seat is fixed to the top of the buffer base, and a barrier is fixed to the top edge of the base. An axial vibration damping structure is connected between the base and the buffer base, comprising a first axial vibration damping component, a second axial vibration damping component, a damping component, and a sealing and protective component. An installation auxiliary positioning component is provided on the side end of the buffer base, comprising a plurality of adjusting sleeves, an adjusting rod inserted into the adjusting sleeves, and an arc-shaped positioning piece fixed to the end of the adjusting rod. The surface of the arc-shaped positioning piece abuts against the inner surface of the barrier.

[0006] Furthermore, the first axial damping buffer assembly includes several first spring grooves opened on the top of the base, a sleeve fixed to the top of the base and communicating with the first spring grooves, a buffer column fixed to the bottom of the buffer base and vertically inserted into the sleeve, and a first buffer spring disposed in the first spring groove and connected at both ends to the bottom of the groove and the bottom of the buffer column, respectively.

[0007] Furthermore, the sleeve has vertically formed strip-shaped limiting holes on both sides, and limiting sliders are fixed at the bottom of both sides of the buffer column, with the limiting sliders slidably connected to the strip-shaped limiting holes.

[0008] Furthermore, a protective pad is fitted on the outside of the buffer column, and the protective pad is fixed to the bottom of the buffer base.

[0009] Furthermore, the second axial damping and buffer assembly includes a plurality of second spring grooves formed on the top of the base, a sliding block slidably connected in the second spring groove, a second buffer spring with its two ends respectively connected to the sliding block and the inner wall of the second spring groove, and a buffer rod with its two ends respectively rotatably connected to the sliding block and the bottom of the buffer base.

[0010] Furthermore, the damping assembly includes several dampers, with both ends of the dampers fixed to the top of the base and the bottom of the buffer base, respectively.

[0011] Furthermore, the sealing and protective assembly includes a corrugated sleeve, the two ends of which are respectively fixed to the edge of the buffer base and the top of the base, and seal the first axial damping buffer assembly and the second axial damping buffer assembly inside it.

[0012] Furthermore, a limiting piece is fixed at one end of the adjusting rod located inside the adjusting sleeve, and a limiting groove is formed at the bottom of the inner wall of the adjusting sleeve, with the limiting piece slidably connected within the limiting groove.

[0013] Furthermore, the top of the adjusting sleeve is provided with a threaded hole, and a tightening screw is threaded into the threaded hole, with the bottom end of the tightening screw abutting against the surface of the adjusting rod.

[0014] Furthermore, the top of the adjusting rod is provided with scale lines.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This solution, through the coordinated use of the flywheel energy storage system device body, base, enclosure, axial vibration damping mechanism, buffer base, mounting base, and installation auxiliary positioning components, can perform axial vibration damping of the flywheel energy storage system device body through a dual vibration damping method. This greatly improves the axial vibration damping effect of the flywheel energy storage system device body. Furthermore, the axial vibration damping mechanism can be sealed and protected, resulting in a longer service life. In addition, the axial vibration damping mechanism of this application can also have the function of positioning the flywheel energy storage system device body, thereby effectively assisting in positioning the flywheel energy storage system device body at the center of the base. This enriches its functions and makes it suitable for widespread application. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A structural cross-sectional view of an axial vibration damping device for a flywheel energy storage system provided in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of the structure at point A in the image; Figure 3 for Figure 2 Enlarged view of the structure at point B in the image; Figure 4 This is a partial front view of an axial vibration damping and buffering device for a flywheel energy storage system provided in an embodiment of the present invention; Figure 5 This is a partial top view of an axial vibration damping device for a flywheel energy storage system provided in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of the structure at point C in the image; Figure 7 This is a front view of the structure of an axial vibration damping device for a flywheel energy storage system, provided in an embodiment of the present invention.

[0017] In the diagram: 1. Flywheel energy storage system body; 2. Base; 3. Enclosure; 4. Buffer base; 5. Mounting seat; 6. First spring groove; 7. Sleeve; 8. Buffer column; 9. First buffer spring; 10. Strip-shaped limiting hole; 11. Limiting slider; 12. Protective pad; 13. Second spring groove; 14. Sliding block; 15. Second buffer spring; 16. Buffer rod; 17. Damper; 18. Corrugated sleeve; 19. Adjusting sleeve; 20. Adjusting rod; 21. Arc-shaped positioning piece; 22. Limiting piece; 23. Limiting groove; 24. Threaded hole; 25. Tightening screw; 26. Scale line. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0019] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0020] Example: Please see Figures 1 to 7 This embodiment provides an axial vibration damping device for a flywheel energy storage system, including a flywheel energy storage system body 1 and a base 2. A barrier 3 is fixed at the top edge of the base 2. A buffer base 4 is fixed to the top of the base 2 through an axial vibration damping structure. A mounting seat 5 is fixed to the top of the buffer base 4. The flywheel energy storage system body 1 is fixed to the top of the mounting seat 5. An installation auxiliary positioning component is fixed to the side of the buffer base 4. The axial vibration damping structure includes a first axial vibration damping component, a second axial vibration damping component, a damping component, and a sealing protection component. The first axial vibration damping component, the second axial vibration damping component, the damping component, and the sealing protection component are all fixedly installed between the base 2 and the buffer base 4. The first axial damping and buffer assembly includes several first spring grooves 6, which are arranged in a circular array at the top edge of the base 2. Several sleeves 7 are also fixed in a circular array at the top edge of the base 2, with their bottom ends corresponding to the top ends of the first spring grooves 6. Several buffer posts 8 are fixed in a circular array at the bottom edge of the buffer base 4, with their bottom ends vertically inserted into the sleeves 7. First buffer springs 9 are vertically fixed to the bottom of the inner walls of the first spring grooves 6, with their top ends fixed to the bottom ends of the buffer posts 8. The sleeves 7... The buffer column 8 has symmetrical and vertically opened strip-shaped limiting holes 10 on both sides. Limiting sliders 11 are fixed at the bottom of both sides. The limiting sliders 11 are slidably connected to the inside of the strip-shaped limiting holes 10. It should be noted that under the combined limiting action of the limiting sliders 11 and the strip-shaped limiting holes 10, when the flywheel energy storage system device 1 installed on the buffer base 4 vibrates axially, the buffer base 4 can drive several buffer columns 8 to move vertically in the corresponding sleeves 7, thereby squeezing the first buffer spring 9. The first buffer spring 9 deforms and generates a reverse force, thereby realizing the function of axial shock absorption. Several protective pads 12 are fixed in a circular array at the bottom edge of the buffer base 4. The protective pads 12 are respectively sleeved on the outside of several buffer posts 8. It should be noted that the protective pads 12 can effectively prevent the buffer base 4 from colliding with the top of the sleeve 7. The second axial damping and buffering assembly includes several second spring grooves 13, which are symmetrically opened on both sides of the top of the base 2. Each second spring groove 13 has a sliding block 14 slidably connected to its inner side. Each sliding block 14 has a second buffer spring 15 fixed to its two ends. The ends of the second buffer spring 15 are fixed to the inner wall of the second spring groove 13. Each sliding block 14 has a buffer rod 16 rotatably mounted on its top. The tops of several buffer rods 16 are symmetrically rotatably mounted on both sides of the bottom of the buffer base 4. It should be noted that when the flywheel energy storage system device 1 installed on the buffer base 4 vibrates axially, the buffer rods 16 can drive the corresponding sliding block 14 to slide in the corresponding second spring groove 13. When the sliding block 14 slides, it squeezes and stretches the corresponding second buffer spring 15, causing the second buffer spring 15 to undergo elastic deformation and generate elastic force, thus realizing the function of axial damping and buffering again. The damping assembly includes several dampers 17. The bottom ends of the dampers 17 are symmetrically fixed to the top of the base 2, and the top ends of the dampers 17 are all fixed to the bottom of the buffer base 4. It should be noted that under the action of the dampers 17, the flywheel energy storage system device body 1 on the buffer base 4 can quickly become stable, and can effectively absorb the energy generated by the elastic force of the first buffer spring 9 and the second buffer spring 15, thereby effectively preventing the flywheel energy storage system device body 1 from vibrating under the elastic force of the first buffer spring 9 and the second buffer spring 15. In summary, this device can perform axial vibration damping and buffering operations on the flywheel energy storage system device body 1 through a dual vibration damping method, which greatly improves the axial vibration damping and buffering effect of the flywheel energy storage system device body 1. The sealing and protective assembly includes a corrugated sleeve 18. The top end of the corrugated sleeve 18 is fixed to the edge of the buffer base 4, and the bottom end of the corrugated sleeve 18 is fixed to the top of the base 2. It should be noted that under the protective function of the corrugated sleeve 18, the overall structure of the first axial damping buffer assembly and the second axial damping buffer assembly located inside the corrugated sleeve 18 can be effectively sealed and protected, thereby giving the axial damping buffer mechanism a better service life. The installation auxiliary positioning assembly includes several adjusting sleeves 19, with their ends arranged in a circular array and fixed to the side of the buffer base 4. Each adjusting sleeve 19 has an adjusting rod 20 inserted inside it, and each adjusting rod 20 has an arc-shaped positioning piece 21 fixed to its end. The surfaces of the arc-shaped positioning pieces 21 abut against the inner surface of the enclosure 3. A limiting piece 22 is fixed to one end of each adjusting rod 20 located inside the adjusting sleeve 19. A limiting groove 23 is formed at the bottom of the inner wall of each adjusting sleeve 19, and the limiting piece 22 slides within the limiting groove 23. A threaded hole 24 is vertically formed at the top of each adjusting sleeve 19 away from the buffer base 4, and a tightening screw 25 is threaded onto the wall of each threaded hole 24. The bottom ends of all 5 abut against the surface of the adjusting rod 20. The top of the adjusting rod 20 is provided with scale lines 26. It should be noted that when the operator installs the overall structure of the axial damping buffer mechanism on the top of the base 2, the adjusting rod 20 can be extended and adjusted at equal intervals through the scale lines 26, so that several arc-shaped positioning pieces 21 abut against the inner surface of the enclosure 3, and are locked and fixed by tightening the screws 25. Thus, the overall structure of the axial damping buffer mechanism can be conveniently positioned and installed at the center of the top of the base 2, which can have the function of positioning the flywheel energy storage system device body 1, thereby effectively assisting in positioning and installing the flywheel energy storage system device body 1 at the center of the base 2, enriching its functions.

[0021] The usage process of this invention is as follows: When in use, the operator first installs the overall structure of the axial damping buffer mechanism on the base 2. Then, the operator can adjust the adjustment rod 20 at equal intervals through the telescopic adjustment rod 20 and the scale line 26 so that several arc-shaped positioning pieces 21 abut against the inner surface of the enclosure 3 and are locked and fixed by tightening the screws 25. Thus, the overall structure of the axial damping buffer mechanism can be conveniently positioned and installed at the top center of the base 2. Then, the operator installs the flywheel energy storage system device body 1 in the mounting seat 5 at the top of the buffer base 4, which can effectively assist the flywheel energy storage system device body 1 in being positioned and installed at the center of the base 2. When the flywheel energy storage system device 1 mounted on the buffer base 4 vibrates axially, the buffer base 4 can drive several buffer columns 8 to move vertically within the corresponding sleeves 7, thereby compressing the first buffer spring 9. The first buffer spring 9 deforms and generates a reverse force, thus achieving the function of axial shock absorption. When the flywheel energy storage system device 1 mounted on the buffer base 4 vibrates axially, the buffer rod 16 can drive the corresponding sliding block 14 to slide within the corresponding second spring groove 13. When the sliding block 14 slides, it compresses and stretches the corresponding second buffer spring 15, causing the second buffer spring 15 to undergo elastic deformation. The elastic force can again realize the function of axial shock absorption and buffering. Moreover, under the action of several dampers 17, the flywheel energy storage system device body 1 on the buffer base 4 can quickly become stable, and can effectively absorb the energy generated by the elastic force of the first buffer spring 9 and the second buffer spring 15, thereby effectively avoiding the situation of self-vibration of the flywheel energy storage system device body 1 under the action of the elastic force of the first buffer spring 9 and the second buffer spring 15. Therefore, the device can also perform axial shock absorption and buffering operation on the flywheel energy storage system device body 1 through dual shock absorption, greatly improving the axial shock absorption and buffering effect of the flywheel energy storage system device body 1.

[0022] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An axial vibration damping device for a flywheel energy storage system, characterized in that, The system includes a base (2), a buffer base (4), and a mounting seat (5) for mounting the flywheel energy storage system device body (1). The mounting seat (5) is fixed to the top of the buffer base (4), and a barrier (3) is fixed to the top edge of the base (2). An axial damping buffer structure is connected between the base (2) and the buffer base (4), including a first axial damping buffer assembly, a second axial damping buffer assembly, a damping assembly, and a sealing and protection assembly. An installation auxiliary positioning assembly is provided on the side end of the buffer base (4), including several adjusting sleeves (19), an adjusting rod (20) inserted into the adjusting sleeve (19), and an arc-shaped positioning piece (21) fixed to the end of the adjusting rod (20). The surface of the arc-shaped positioning piece (21) abuts against the inner surface of the barrier (3).

2. The axial vibration damping and buffering device for a flywheel energy storage system according to claim 1, characterized in that, The first axial damping buffer assembly includes several first spring grooves (6) opened on the top of the base (2), a sleeve (7) fixed on the top of the base (2) and communicating with the first spring grooves (6), a buffer column (8) fixed on the bottom of the buffer base (4) and vertically inserted into the sleeve (7), and a first buffer spring (9) disposed in the first spring groove (6) and connected at both ends to the bottom of the groove and the bottom of the buffer column (8) respectively.

3. The axial vibration damping and buffering device for a flywheel energy storage system according to claim 2, characterized in that, The sleeve (7) has vertically opened strip-shaped limiting holes (10) on both sides, and the bottom of the buffer column (8) is fixed with limiting sliders (11), which are slidably connected in the strip-shaped limiting holes (10).

4. The axial vibration damping and buffering device for a flywheel energy storage system according to claim 2, characterized in that, The buffer column (8) is fitted with a protective pad (12) on its outer side, and the protective pad (12) is fixed to the bottom of the buffer base (4).

5. The axial vibration damping device for a flywheel energy storage system according to claim 1, characterized in that, The second axial damping buffer assembly includes several second spring grooves (13) opened on the top of the base (2), a sliding block (14) slidably connected in the second spring groove (13), a second buffer spring (15) with both ends connected to the sliding block (14) and the inner wall of the second spring groove (13) respectively, and a buffer rod (16) rotatably connected to the sliding block (14) and the bottom of the buffer base (4) respectively.

6. The axial vibration damping and buffering device for a flywheel energy storage system according to claim 1, characterized in that, The damping assembly includes several dampers (17), with the two ends of the dampers (17) fixed to the top of the base (2) and the bottom of the buffer base (4), respectively.

7. The axial vibration damping device for a flywheel energy storage system according to claim 1, characterized in that, The sealing and protective assembly includes a corrugated sleeve (18), the two ends of which are fixed to the edge of the buffer base (4) and the top of the base (2), respectively, and seal the first axial damping buffer assembly and the second axial damping buffer assembly inside it.

8. The axial vibration damping device for a flywheel energy storage system according to claim 1, characterized in that, One end of the adjusting rod (20) located inside the adjusting sleeve (19) is fixed with a limiting piece (22). A limiting groove (23) is opened at the bottom of the inner wall of the adjusting sleeve (19), and the limiting piece (22) is slidably connected in the limiting groove (23).

9. The axial vibration damping device for a flywheel energy storage system according to claim 8, characterized in that, The top of the adjusting sleeve (19) is provided with a threaded hole (24), and a tightening screw (25) is connected to the threaded hole (24). The bottom end of the tightening screw (25) abuts against the surface of the adjusting rod (20).

10. The axial vibration damping device for a flywheel energy storage system according to claim 9, characterized in that, The top of the adjusting rod (20) is provided with a scale line (26).

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