Self-resetting damping device using gear amplification of inertia

Abstract

The present application belongs to the field of rail transit damping technology, and particularly relates to a self-resetting damping device using gear to amplify inertia; the device comprises a triangular frame, a spiral rod and a pre-pressed disc spring are connected below each corner of the triangular frame; a first cylinder is rotatably sleeved on the spiral rod below the first top corner and the second top corner of the triangular frame; a second cylinder is rotatably sleeved on the spiral rod below the third top corner of the triangular frame; a first gear is sleeved on the outer side of each first cylinder, and the two first gears are engaged with a third gear; a second gear is sleeved on the outer side of the second cylinder, and a fourth gear is engaged between each first gear and the second gear; when the pre-pressed disc springs corresponding to the first top corner and the second top corner of the triangular frame are deformed, the spiral rod above the pre-pressed disc springs drives the first cylinder to rotate, the first cylinder drives the first gear to rotate, and then drives the second gear to rotate, so that the third top corner of the triangular frame rises or falls.

Description

Technical Field

[0001] This invention belongs to the field of vibration reduction technology for rail transit, specifically relating to a self-resetting vibration reduction device that utilizes gears to amplify inertia. Background Technology

[0002] With social progress and rapid economic development, more and more high-speed rail and subway tracks are under construction. In order to ensure the stability of train operation and the comfort of passengers, the requirements for the vibration reduction performance of the tracks are also getting higher and higher, and vibration reduction devices are often required to be installed on the tracks.

[0003] However, traditional self-resetting vibration damping devices have limited energy consumption capacity and self-resetting performance, and cannot be flexibly modified according to vibration damping requirements. Therefore, there is an urgent need for a vibration damping device with good self-resetting performance and better energy consumption effect to ensure better economic efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a self-resetting vibration damping device that utilizes gears to amplify inertia. This solves the problems of limited energy consumption and self-resetting performance of traditional self-resetting vibration damping devices, and the inability to flexibly change the device according to vibration damping requirements.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-resetting vibration damping device utilizing gear amplification of inertia, comprising a triangular frame, wherein a helical rod and a preloaded disc spring are connected below each corner of the triangular frame; a first cylinder is rotatably sleeved on the helical rod below the first and second apex of the triangular frame; a second cylinder is rotatably sleeved on the helical rod below the third apex of the triangular frame; a first gear is respectively sleeved on the outer side of the two first cylinders, and both first gears mesh with a third gear; a second gear is sleeved on the outer side of the second cylinder, and a fourth gear meshes between each of the first gears and the second gear; When the preloaded disc springs corresponding to the first and second vertices of the triangular frame deform, the spiral rod above the preloaded disc spring drives the first cylinder to rotate, the first cylinder drives the first gear to rotate, and then drives the second gear to rotate, causing the third vertices in the triangular frame to rise or fall.

[0006] Furthermore, the top covers of the first cylinder and the second cylinder are respectively provided with openings that cooperate with the screw rod. The top covers drive the first cylinder to rotate by the rising or falling of the screw rod.

[0007] Furthermore, the base is provided with a circular slide rail, and the bottom of the first cylinder is rotatably connected to the circular slide rail.

[0008] Furthermore, a transmission spring is connected between the upper end of the helical rod and each corner of the triangular frame.

[0009] Furthermore, the triangular frame is formed by connecting the ends of connecting rods with cavities. The cavities are divided into multiple interval zones by spacers, and each interval zone contains several particles.

[0010] Furthermore, the triangular frame is an equilateral triangle frame.

[0011] Furthermore, the material of the particles is one or more of metal, concrete, glass, or ceramic.

[0012] Furthermore, both the first and second cylinders have double-walled structures, and the cavity between the inner and outer walls of the double-walled structure contains a viscous liquid.

[0013] Furthermore, a spiral blade is fixedly connected to the outer side of the inner cylinder wall.

[0014] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: (1) Under the condition of vertical load, the triangular frame remains tilted during loading and unloading, so that nonlinear collisions occur continuously between particles and between particles and spacers in the triangular frame, generating friction, dissipating vibration energy, and having a good vibration reduction effect.

[0015] (2) After the device is put into use, the device achieves the self-resetting function of the whole by utilizing the different rotation directions of the first gear and the second gear when they move with their corresponding screw rods and the combined action of the preloaded disc spring. This makes the self-resetting performance of the vibration damping device good and easy to use in rail transit subjected to vertical downward loads. Attached Figure Description

[0016] The accompanying drawings are incorporated in and form part of this specification, and together with the description serve to explain the principles of the invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cylindrical structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a structural diagram of the top cover of the present invention.

[0019] Wherein: 1 is a triangular frame; 2 is a spacer; 3 is a particle; 4 is a transmission spring; 5 is a spiral rod; 6 is a preloaded disc spring; 7 is a first cylinder; 8 is a second cylinder; 9 is a top cover; 10 is a spiral blade; 11 is a viscous liquid; 12 is a first gear; 13 is a second gear; 14 is a third gear; 15 is a fourth gear; 16 is a base; 17 is a first apex; 18 is a second apex; 19 is a third apex; 20 is an opening. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples consistent with some aspects of the invention as detailed in the appended claims.

[0021] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example

[0022] See Figure 1-3 This invention provides a self-resetting vibration damping device that utilizes gear amplification of inertia, comprising a triangular frame 1, with a helical rod 5 and a preloaded disc spring 6 connected below each corner of the triangular frame 1; a first cylinder 7 is rotatably sleeved on the helical rod 5 below the first apex 17 and the second apex 18 of the triangular frame 1; a second cylinder 8 is rotatably sleeved on the helical rod 5 below the third apex 19 of the triangular frame 1; a first gear 12 is respectively sleeved on the outer side of the two first cylinders 7, and both first gears 12 mesh with a third gear 14; a second gear 13 is sleeved on the outer side of the second cylinder 8, and a fourth gear 15 meshes between each first gear 12 and the second gear 13; When the preloaded disc spring 6 corresponding to the first vertex 17 and the second vertex 18 of the triangular frame 1 deforms, the spiral rod 5 above the preloaded disc spring 6 drives the first cylinder 7 to rotate, the first cylinder 7 drives the first gear 12 to rotate, and then drives the second gear 13 to rotate, causing the third vertex 19 in the triangular frame 1 to rise or fall.

[0023] In this embodiment: the lower end of the spiral rod 5 is fixedly connected to the upper end of the preloaded disc spring 6; the lower end of the preloaded disc spring 6 is fixedly connected to the base 16; and the first gear 12 is sleeved on the outer wall of the first cylinder 7.

[0024] The vibration damping device is placed horizontally below the track, with a force-transmitting support placed between the track and the top of the device. The lower end of the helical rod 5 is fixedly connected to the upper end of the pre-compressed disc spring 6. Under a vertically downward load, external vibrations act on the first apex 17 and the second apex 18 of the triangular frame 1 through the force-transmitting support, and then are transmitted to the two helical rods 5 through the transmission springs 4 corresponding to the first apex 17 and the second apex 18. The two helical rods 5 move downward under the force, causing the two first cylinders 7 and the two first gears 12 corresponding to the helical rods 5 to rotate clockwise. At this time, the pre-compressed disc spring 6 is compressed. The rotation of the two first gears 12 will drive the second gear 13 and the second cylinder 8 corresponding to the third apex 19 of the triangular frame 1 to rotate through the fourth gear 15. The corresponding helical rod 5 moves upward and compresses the transmission spring 4, thus causing the triangular frame 1 to tilt. During this process, the gears and helical rods 5... The combination of these factors allows the device to provide a greater inertial amplification effect. When the external vibration disappears, the first apex 17 and the second apex 18 of the triangular frame 1 are no longer under force, and the preloaded disc spring 6 rebounds, causing the spiral rod 5 to move upward. This drives the first cylinder 7 and the first gear 12 corresponding to the spiral rod 5 to rotate counterclockwise. At the same time, the counterclockwise rotation of the first gear 12 drives the second gear 13 and the second cylinder 8 to rotate counterclockwise through the fourth gear 15, causing the corresponding spiral rod 5 to move downward, thus achieving the self-resetting of the entire device. This invention provides a greater inertial amplification effect by converting linear motion into rotation. Furthermore, by utilizing the different rotation directions of the first gear 12 and the second gear 13 as they move with their corresponding spiral rod 5, the self-resetting function of the vibration damping device is achieved, enabling the device to exert a high-efficiency vibration damping capability under vertical load and meet the vibration damping requirements.

[0025] Furthermore, the top cover 9 of the first cylinder 7 is provided with an opening 20 that cooperates with the screw rod 5. The top cover 9 drives the first cylinder 7 to rotate by the rising or falling of the screw rod 5.

[0026] In this embodiment: the opening 20 is matched with the screw rod 5. The descent of the screw rod 5 will cause the first cylinder 7 to rotate clockwise, and the rise of the screw rod 5 will cause the first cylinder 7 to rotate counterclockwise.

[0027] Furthermore, a circular slide rail is provided on the base 16, and the bottom of the first cylinder 7 is rotatably connected to the circular slide rail. The circular slide rail on the base 16 has a center point on the vertical projection point of the three vertices of the triangular frame 1 onto the base 16, which serves to reduce friction.

[0028] Furthermore, a transmission spring 4 is connected between the upper end of the screw rod 5 and each corner of the triangular frame 1. The upper end of the screw rod 5 is fixedly connected to the lower end of the transmission spring 4 through processes such as high-temperature welding.

[0029] Furthermore, the triangular frame 1 is formed by connecting the ends of a connecting rod with a cavity. The cavity is divided into multiple interval zones by spacers 2, and each interval zone is provided with several particles 3.

[0030] Furthermore, triangular frame 1 is an equilateral triangular frame.

[0031] Furthermore, the material of particle 3 is one or more of metal, concrete, glass, or ceramic. The interior of the triangular frame 1 is divided into multiple interval zones by spacers 2, and the interval zones are filled with particles 3, which are any one or more of steel balls, concrete balls, glass balls, or ceramic balls.

[0032] Furthermore, the first cylinder 7 has a double-walled inner and outer structure, and a viscous liquid 11 is disposed in the cavity between the inner and outer double-walled structures.

[0033] Furthermore, a spiral blade 10 is provided in the cavity between the inner and outer double-layer cylinder walls, and the spiral blade 10 is fixedly connected to the outer side of the inner cylinder wall.

[0034] In this embodiment: during the entire loading-unloading process, particles 3 in each small space within the triangular frame 1 collide nonlinearly with each other, and particles 3 and spacers 2 collide with each other, and friction occurs between particles 3 and between particles 3 and spacers 2, resulting in the loss of some of the energy input from the external vibration structure, and energy is continuously consumed throughout the entire loading-unloading process; at the same time, the spiral blades 10 on the outer walls of the inner cylinders of the first cylinder 7 and the second cylinder 8 agitate the viscous liquid 11 in the interlayer, dissipating some of the energy.

[0035] In addition, the helical rod 5 is made of metal; the transmission spring 4 can be a steel spring, a cylindrical helical metal spring or a conical helical metal spring; the first cylinder 7 and the second cylinder 8 can be made of metal; and the first gear 12, the second gear 13, the third gear 14 and the fourth gear 15 are metal gears.

[0036] The operation and use method of this invention: The vibration damping device is placed horizontally below the track, and a force transmission support is placed between the track and the top of the vibration damping device. Under the action of a vertical downward load, the external vibration acts on the first apex 17 and the second apex 18 of the first cylinder 7 connected to the lower part of the triangular frame 1 through the force transmission support, and then is transmitted to the screw rod 5 through the transmission spring 4. The screw rod 5 moves downward under the force, driving the first cylinder 7 and the first gear 12 to rotate clockwise. The clockwise rotation of the two first gears 12 will drive the second gear 13 and the second cylinder 8 to rotate clockwise through the fourth gear 15. The corresponding screw rod 5 moves upward to compress the transmission spring 4. Therefore, the triangular frame 1 tilts. The particles 3 in each small space of the triangular frame 1 collide and rub against each other nonlinearly, and the particles 3 and the spacers 2 lose part of the energy of the external vibration input structure. Simultaneously, the spiral blades 10 on the outer walls of the inner cylinders of the first cylinder 7 and the second cylinder 8 agitate the viscous liquid 11 in the interlayer, dissipating some energy. The linear motion of the spiral rod 5 is converted into the rotational motion of the first gear 12, thereby providing a greater inertial amplification effect. During unloading, the pre-compressed disc spring 6 provides a restoring force, causing the spiral rod 5 corresponding to the first cylinder 7 to move upward, driving the first cylinder 7 and the first gear 12 to rotate counterclockwise. At the same time, the counterclockwise rotation of the first gear 12 drives the second gear 13 and the second cylinder 8 to rotate counterclockwise through the fourth gear 15, causing the corresponding spiral rod 5 to move downward, realizing the self-resetting of the entire device. During the entire loading-unloading process, the particles 3 inside the triangular frame 1 maintain nonlinear collisions with each other and with the spacer 2, and the particles 3 rub against each other and with the spacer 2, continuously consuming energy.

[0037] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0038] It should be understood that the present invention is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A self-resetting vibration damping device utilizing gear amplification of inertia, characterized in that, The system includes a triangular frame (1), with a helical rod (5) and a preloaded disc spring (6) connected below each corner of the triangular frame (1); a first cylinder (7) is rotatably sleeved on the helical rod (5) below the first apex (17) and the second apex (18) of the triangular frame (1); a second cylinder (8) is rotatably sleeved on the helical rod (5) below the third apex (19) of the triangular frame (1); a first gear (12) is respectively sleeved on the outside of the two first cylinders (7), and both first gears (12) mesh with a third gear (14); a second gear (13) is sleeved on the outside of the second cylinder (8), and a fourth gear (15) meshes between each first gear (12) and the second gear (13). When the preloaded disc springs (6) corresponding to the first apex (17) and the second apex (18) of the triangular frame (1) deform, the spiral rod (5) above the preloaded disc spring (6) drives the first cylinder (7) to rotate, the first cylinder (7) drives the first gear (12) to rotate, and then drives the second gear (13) to rotate, so that the third apex (19) in the triangular frame (1) rises or falls; the first gear and the second gear rotate in different directions as their corresponding spiral rods (5) move; the triangular frame (1) is formed by connecting the ends of connecting rods with cavities, and the cavity is divided into multiple interval areas by spacers (2), and each interval area is provided with several particles (3).

2. The self-resetting vibration damping device utilizing gear amplification inertia according to claim 1, characterized in that: The top cover (9) of the first cylinder (7) and the second cylinder (8) are respectively provided with openings (20) that cooperate with the screw rod (5). The top cover (9) drives the first cylinder (7) to rotate by the rise or fall of the screw rod (5).

3. The self-resetting vibration damping device utilizing gear amplification inertia according to claim 2, characterized in that: A circular slide rail is provided on the base (16), and the bottom of the first cylinder (7) is rotatably connected to the circular slide rail.

4. The self-resetting vibration damping device utilizing gear amplification inertia according to claim 1, characterized in that: The upper end of the helical rod (5) is connected to each corner of the triangular frame (1) by a transmission spring (4).

5. A self-resetting vibration damping device utilizing gear amplification inertia according to claim 1, characterized in that: The triangular frame (1) is an equilateral triangle frame.

6. The self-resetting vibration damping device utilizing gear amplification inertia according to claim 1, characterized in that: The material of the particles (3) is one or more of metal, concrete, glass or ceramic.

7. A self-resetting vibration damping device utilizing gear amplification inertia according to claim 1, characterized in that: The first cylinder (7) and the second cylinder (8) both have double-layered walls, and the cavity between the inner and outer walls of the double-layered walls is filled with a viscous liquid (11).

8. A self-resetting vibration damping device utilizing gear amplification inertia according to claim 7, characterized in that: A spiral blade (10) is fixedly connected to the outer side of the inner cylinder wall.

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