A vibration reduction device and system based on energy recovery and a train

Abstract

The present invention discloses a vibration reduction device and system based on energy recovery and a train, comprising a U-shaped double-tooth assembly, a transmission assembly, a mounting plate assembly and a DC generator, wherein the transmission assembly comprises a driving shaft, a first gear arranged at both ends of the driving shaft, and a second gear arranged in the middle of the driving shaft through a one-way bearing, and the mounting plate assembly comprises a lower base plate and mounting plates installed on the left and right sides of the lower base plate, the driving shaft is rotatably arranged on the mounting plate, the lower base plate is slidably arranged on the bottom surface of the U-shaped double-tooth assembly, racks are arranged on the two arms of the U-shaped double-tooth assembly, the racks are meshed with the first gears, when the U-shaped double-tooth assembly and the lower base plate slide relative to each other, the racks drive the first gears to rotate, and the second gears are connected to the input end of the DC generator. The present invention improves the structural strength of the vibration reduction device, avoids the instability due to eccentric force, and thus improves the working efficiency and service life of the energy recovery vibration reduction device.

Description

Technical Field

[0001] The present invention relates to the field of vibration reduction devices, and in particular to a vibration reduction device and system based on energy recovery. Background Art

[0002] At present, the shock absorbers used in most vehicles mainly consider vibration isolation and energy dissipation. Existing shock absorbers mainly convert mechanical vibration energy into heat energy through friction or other means and dissipate it in the air. The mechanical energy in this process cannot be recycled, resulting in energy waste. However, many existing freight trains are not equipped with power systems, which poses a great challenge to the monitoring of the safety status of freight trains. The track condition of freight railways is generally worse than that of passenger railways, and the vibration of trains is more severe during operation. The vibration energy during the operation of freight trains is converted into electrical energy and used to power monitoring equipment. This can not only solve the problem of energy supply shortage, but also realize the efficient and clean use of energy, achieving the effect of energy conservation and emission reduction.

[0003] The survey results show that shock absorbers with vibration energy recovery have been reported in the field of automobile transportation. For example, the authorized invention patent CN 108386330 B discloses a method of converting linear vibration into rotational motion of a gear set by cooperating with a rack and a gear set, thereby driving a DC motor to convert mechanical energy into electrical energy. The authorized invention patent CN 106763400 B discloses a similar vibration reduction device that uses a combination of gears and racks to achieve energy collection. In addition to using racks and gear sets for transmission, there are also cases reported of using fluids such as hydraulic oil or air for energy transmission. The application for patent CN 109004727 A discloses a shock absorber device with energy recovery using hydraulic transmission. The device connects the plunger cylinder between the axle and the frame, connects the upper and lower oil chambers of the plunger cylinder to the oil outlet and oil inlet of the gear pump through a hose, and uses the flow of hydraulic oil in the plunger cylinder under vibration conditions to drive the gear pump, thereby driving the connected DC motor to generate electricity. Authorized patent CN 106438275 B uses the compressible properties of gas to achieve vibration reduction effects, and uses compressed air to drive a turbocharger to achieve energy reuse.

[0004] Since freight trains operate in a large area, the ambient temperature will change dramatically, which will have a great impact on the working performance of the fluid medium. In addition, the connecting pipe is also a weak link in the fluid transmission device. Factors such as material aging and fatigue load can easily lead to pipeline leakage, affecting the reliability of the system. Therefore, the shock absorber that uses fluid for energy transmission in the existing technology is not suitable for freight trains.

[0005] The rack-and-pinion combined energy recovery vibration reduction device is less affected by external environmental factors and is suitable for use in freight trains. For example, the invention patent with application number CN201710171674.1 discloses a railway freight car vibration power generation device, which uses a rack-and-pinion mechanism and is placed in the bogie bolster to convert the vibration of the bolster into the rotation of the generator. This device is a single-sided rack-and-pinion device, which is subject to lateral impact force and bending moment during the movement of the freight car, especially under the dynamic impact load of a heavy-loaded railway freight car, and is very prone to bending and breaking, which seriously affects the working efficiency and service life of the energy recovery vibration reduction device.

[0006] In addition, there are cases that use the combination of a screw and a nut to convert motion based on the characteristics of railway freight cars. For example, the invention patent application with application number CN201810498301.X discloses a railway freight car vibration power generation device, including a reversing mechanism, a speed change device, and a vibration generator. The power input end of the reversing mechanism corresponds to the pillow spring, and the pillow spring is used to transmit its vertical vibration force to the reversing mechanism. The reversing mechanism is used to convert the vertical vibration force transmitted by the pillow spring into rotational motion and output it to the speed change device, and finally generate electricity through the generator. The utility model patent with application number CN201820768730.X is a specific reversing mechanism of the above system. The reversing mechanism mainly includes a reversing screw and a reversing nut. By converting the vertical movement of the reversing screw driven by the force into the rotational motion of the reversing nut and outputting it, the vertical vibration force of the pillow spring in the railway freight car is converted. The above-mentioned power generation device converts the linear motion of the pillow spring into the rotational motion of the nut through the screw nut-reset spring mechanism, thereby driving the transmission and the generator. When the pillow spring contacts the reversing lead screw, it limits the rotation of the lead screw, so that the lead screw can only move in a straight line, and the nut that matches the lead screw can rotate; when the pillow spring is separated from the lead screw, the rotation restriction force of the pillow spring on the lead screw disappears, and the reversing lead screw moves downward while rotating under the action of the return spring, and the nut remains stationary. The repeated contact and separation process between the pillow spring and the lead screw will generate dynamic impact restoring force, aggravating the loss of the system, thereby reducing the efficiency of energy recovery. Summary of the invention

[0007] The purpose of the present invention is to provide a vibration reduction device and system based on energy recovery and a train, so that the structure has stronger bending stiffness and avoids instability due to eccentric force, thereby improving the working efficiency and service life of the energy recovery vibration reduction device.

[0008] To achieve the above object, the present invention provides the following solutions:

[0009] The present invention provides a vibration reduction device based on energy recovery, comprising a U-shaped double-tooth component, a transmission component, a mounting plate component and a DC generator, wherein the transmission component comprises a driving shaft, a first gear arranged at both ends of the driving shaft, and a second gear arranged in the middle of the driving shaft through a one-way bearing, the mounting plate component comprises a lower base plate and mounting plates installed on the left and right sides of the lower base plate, the driving shaft is rotatably arranged on the mounting plate, the lower base plate is slidably arranged on the bottom surface of the U-shaped double-tooth component, racks are arranged on the two arms of the U-shaped double-tooth component, the racks are meshed with the first gear, when the U-shaped double-tooth component and the lower base plate slide relative to each other, the racks drive the first gear to rotate, and the second gear is connected to the input end of the DC generator.

[0010] Preferably, the active shaft includes an active left shaft and an active right shaft, the active left shaft and the active right shaft are connected by a slip ring, the second gear includes a left bevel gear and a right bevel gear, the left bevel gear is arranged on the active left shaft through a left one-way bearing, the right bevel gear is arranged on the active right shaft through a right one-way bearing, the left one-way bearing and the right one-way bearing are set to the same working direction, a reducer is arranged between the second gear and the DC generator, a third bevel gear is fixedly connected to the end of the central shaft of the reducer, and the third bevel gear is meshed with the left bevel gear and the right bevel gear at the same time.

[0011] Preferably, the first gear is arranged on the outside of the mounting plate, and the second gear is arranged on the inside of the mounting plate.

[0012] Preferably, the U-shaped double-tooth component includes a bottom connecting plate and a toothed rib plate vertically and symmetrically arranged on the bottom connecting plate, a sliding block is arranged on the inner side of the bottom connecting plate, a linear slide rail is arranged on the outer side of the lower bottom plate, and limit blocks are respectively arranged at the upper and lower ends of the linear slide rail.

[0013] Preferably, the mounting plate assembly further comprises a reducer mounting plate mounted on the lower base plate and connected to the two mounting plates, and the reducer is mounted on the reducer mounting plate.

[0014] Preferably, the mounting plate assembly further comprises an upper base plate, which is connected to the mounting plate and the reducer mounting plate and is arranged opposite to the lower base plate.

[0015] Preferably, an upper earring is provided at one end of the bottom connecting plate, and a lower earring is provided on the lower bottom plate in the opposite direction of the upper earring, and the lower earring is located at the other end of the bottom connecting plate.

[0016] Preferably, the end of the driving shaft and the end of the central shaft of the reducer are both provided with gear pressing blocks, and the gear pressing blocks limit the first gear and the third bevel gear.

[0017] The present invention provides a vibration reduction system based on energy recovery, comprising a vibration reduction device based on energy recovery, a DC boost module and a supercapacitor energy storage module. The vibration reduction device based on energy recovery reduces vibration through the resistance torque provided during the rotation of a DC generator, while the DC generator converts mechanical energy into electrical energy. The DC boost module filters and boosts the unstable electrical signal generated by the DC generator, and the supercapacitor energy storage module stores and allocates electrical energy.

[0018] The present invention provides a train, comprising a vibration reduction system based on energy recovery, wherein the side frame and the bolster of the train bogie are respectively connected to the U-shaped double-tooth component and the lower base plate through a connecting structure, and when the train vibrates, the side frame and the bolster produce relative displacement, driving the U-shaped double-tooth component and the lower base plate to produce relative sliding.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] 1. The present invention provides a U-shaped double-tooth assembly so that the two racks on the support arm of the U-shaped double-tooth assembly are respectively meshed with the gears at both ends of the driving shaft, thereby improving the structural strength of the vibration reduction device, avoiding instability due to eccentric force, and improving the working efficiency and service life of the energy recovery vibration reduction device.

[0021] 2. The present invention arranges that the active left shaft and the active right shaft are connected through a slip ring, the left bevel gear is connected to the active left shaft through a left one-way bearing, the right bevel gear is connected to the active right shaft through a right one-way bearing, and the working directions of the left one-way bearing and the right one-way bearing are set to be in the same direction, so that the clockwise or counterclockwise rotation of the first gear at both ends of the active shaft can be transmitted to the third bevel gear through one of the left bevel gear or the right bevel gear, thereby realizing bidirectional transmission; the left-right symmetrical structure can offset the axial impact of the single-sided bevel gear and improve the bending resistance of the rotating shaft.

[0022] 3. By adopting the form of bevel gear meshing, the linear motion of vibration is converted into directional rotation of the reducer center shaft, so that the vibration direction is consistent with the axial direction of the reducer center shaft, the radial size of the device is reduced, and it is more suitable for the size parameters of the suspension system of railway freight cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the internal structure of the vibration reduction device based on energy recovery;

[0025] Figure 2 It is a schematic diagram of the transmission component structure;

[0026] Figure 3 It is a schematic diagram of the force transmission when the rack moves upward;

[0027] Figure 4 It is a schematic diagram of the force transmission when the rack moves downward;

[0028] Figure 5 It is a schematic diagram of the assembly of the slider and the linear guide rail;

[0029] Figure 6 It is a schematic diagram of the structure of the mounting plate assembly;

[0030] Figure 7 It is a schematic diagram of the structure of a U-shaped double-tooth component;

[0031] Figure 8 It is a schematic diagram of a vibration reduction device cover based on energy recovery;

[0032] Among them, 10-U-shaped double-tooth component, 11-bottom connecting plate; 12-toothed rib plate, 13-slider, 20-transmission component, 21-first gear, 22-active left shaft, 23-active right shaft, 24-left one-way bearing, 25-left bevel gear, 26-right one-way bearing, 27-right bevel gear, 28-slip ring, 29-gear pressing block one, 30-mounting plate assembly, 31-lower bottom plate, 32-mounting plate, 33-reducer mounting plate, 34-upper bottom plate, 35-linear slide rail, 36-limit block, 41-DC generator, 42-reducer, 43-third bevel gear, 44-gear pressing block two, 51-upper earring, 52-lower earring, 53-upper cover, 54-lower cover. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The purpose of the present invention is to provide a vibration reduction device and system based on energy recovery and a train, so that the structure has stronger bending stiffness and is not easy to become unstable due to eccentric force, thereby improving the working efficiency and service life of the energy recovery vibration reduction device.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Please refer to Figure 1-8 .

[0037] Embodiment 1

[0038] This embodiment provides a vibration reduction device based on energy recovery, such as Figure 1 As shown, it includes a U-shaped double-tooth assembly 10, a transmission assembly 20, a mounting plate assembly 30 and a DC generator 41. Figure 1 and Figure 2 As shown, the transmission assembly 20 includes a driving shaft, a first gear 21 arranged at both ends of the driving shaft, and a second gear arranged in the middle of the driving shaft through a one-way bearing. The mounting plate assembly 30 includes a lower base plate 31 and two mounting plates 32 mounted on the left and right sides of the lower base plate 31. The driving shaft is rotatably arranged on the mounting plate 32, and the U-shaped double-tooth assembly 10 is slidably connected to the lower base plate 31. The two arms of the U-shaped double-tooth assembly 10 are provided with racks, which mesh with the first gear 21. The rack can be arranged at the top of the two arms or on the side of the two arms, as long as the rack can mesh with the first gear. In this embodiment, the rack is preferably arranged at the top of the two arms. When the U-shaped double-tooth assembly 10 and the lower base plate 31 slide relative to each other, the rack drives the first gear to rotate, and the input end of the DC generator is connected to the second gear through chain drive, gear drive or other connection methods that can realize power transmission, thereby transmitting power to the DC generator. By providing a U-shaped double-tooth component 10, the two racks on the support arms of the U-shaped double-tooth component 10 are respectively meshed with the first gears 21 at both ends of the driving shaft, thereby improving the structural strength of the vibration reduction device, avoiding instability due to eccentric force, and improving the working efficiency and service life of the energy recovery vibration reduction device.

[0039] As a preference, Figure 2As shown, in this embodiment, the active shaft includes an active left shaft 22 and an active right shaft 23, a first gear 21 is installed at the left end of the active left shaft 22, and another first gear 21 is installed at the right end of the active right shaft 23. The second gear includes a left bevel gear 25 and a right bevel gear 27, the left bevel gear 25 is installed on the active left shaft 22 through a left one-way bearing 24, and the right bevel gear 27 is installed on the active right shaft 23 through a right one-way bearing 26, and the inner shaft ends of the active left shaft 22 and the active right shaft 23 are connected through a slip ring 28. The active left shaft 22 and the active right shaft 23 are connected as a whole through the slip ring 28, thereby improving the anti-lateral bending ability of the active shaft. The left end of the active left shaft 22 and the right end of the active right shaft 23 are both provided with a gear pressing block 29 for limiting the first gear 21.

[0040] In the transmission assembly 20, the left one-way bearing 24 and the right one-way bearing 26 are arranged in the same working direction. For example, when the U-shaped double-tooth assembly moves upward, as shown in FIG. Figure 3 As shown in the figure, from the left side of the device, the first gear 21 on the active left shaft 22 rotates clockwise, and the left one-way bearing 24 is locked in this direction, thereby driving the left bevel gear 25 to rotate clockwise, and the left bevel gear 25 meshes with the third bevel gear 43, causing the third bevel gear 43 to rotate clockwise (looking down). When the U-shaped double-tooth assembly moves downward, as shown in FIG. Figure 4 As shown, from the right side of the device, the first gear 21 on the active right shaft 23 rotates clockwise, and the right one-way bearing 26 is locked in this direction, thereby driving the right bevel gear 27 to rotate clockwise, and the right bevel gear 27 is meshed with the third bevel gear 43, so that the third bevel gear 43 rotates clockwise (looking down). The left one-way bearing 24 and the right one-way bearing 26 can also be set to the opposite rotation direction of the above process at the same time. Through the above process, it is achieved that no matter whether the U-shaped double-tooth component 10 moves upward or downward, it can drive the third bevel gear 43 to rotate in the same direction, so that the bidirectional force generated during the vibration process can be effectively transmitted and utilized, and the energy conversion efficiency is improved.

[0041] Preferably, in this embodiment, the mounting plate 32 is provided with a through hole, through which the active left shaft 22 and the active right shaft 23 respectively pass, and the active left shaft 22 and the active right shaft 23 can rotate relative to the mounting plate 32. The first gear 21 is arranged on the outside of the mounting plate 32, the left bevel gear 25 and the right bevel gear 27 are arranged on the inside of the mounting plate 32, and the racks arranged on the two arms of the U-shaped double-tooth assembly 10 are meshed with the first gear 21.

[0042] Preferably, in this embodiment, the relative sliding between the U-shaped double-tooth component 10 and the mounting plate component 30 can also be achieved by the following structure: a linear slide rail 35 is arranged on the outer side of the lower bottom plate, and the cross section of the slide rail 35 is T-shaped; a slider 13 is arranged on the inner side of the bottom connecting plate, and the slider 13 is provided with a slide groove, and the cross section shape of the slide groove is the same as the cross section shape of the slide rail 35; the slider 13 can slide up and down along the linear slide rail 35, but is limited in other directions. Limit blocks 36 are respectively arranged at the upper and lower ends of the linear slide rail 35, and the limit blocks 36 can limit the sliding space of the slider 13, such as Figure 5 shown.

[0043] As a preferred embodiment, Figure 7 As shown, the U-shaped double-tooth assembly 10 is assembled by a bottom connecting plate 11 and toothed ribs 12 located on both sides of the bottom connecting plate 11. This assembly structure makes the production of the U-shaped double-tooth assembly simpler.

[0044] Preferably, if Figure 1 and Figure 6 As shown, the mounting plate assembly 30 also includes a reducer mounting plate 33 and an upper base plate 34. The reducer mounting plate 33 is mounted on the lower base plate 31 and connected to the ends of the two mounting plates 32. The upper base plate 34 is connected to the two mounting plates 32 and the reducer mounting plate 33. The lower base plate 31, the mounting plate 32, the reducer mounting plate 33 and the upper base plate 34 together form a stable frame structure to improve the bearing capacity of the mounting plate 32.

[0045] Preferably, in this embodiment, the DC generator is connected to the reducer 42, which is mounted on the reducer mounting plate 33. A third bevel gear 43 is provided at the end of the central axis of the reducer 42, and a second gear pressing block 44 is provided at the end of the central axis of the reducer 42 to limit the third bevel gear 43. The third bevel gear 43 is meshed with the left bevel gear 25 and the right bevel gear 27. Preferably, the reducer 42 adopts a planetary gear reducer, which adjusts the rotation speed through the cooperation of the planetary gear set to achieve the best match with the generator performance, thereby achieving the most efficient electric energy conversion.

[0046] Preferably, in this embodiment, an upper earring 51 is provided above the bottom connecting plate 11, and a lower earring 52 is provided below the lower bottom plate 31. The upper earring 51 and the lower earring 52 are respectively connected to the side frame and the bolster of the train bogie by pins, and may also be connected by other connecting parts.

[0047] Preferably, the vibration reduction device based on energy recovery in this embodiment further includes an upper cover 53 and a lower cover 54, wherein the lower cover 54 is arranged outside the reducer 42 and the DC generator 41 and is connected to the lower bottom plate 31. The upper cover 53 is arranged outside the transmission assembly 20 and is connected to the bottom connecting plate 11. The upper cover 53 and the lower cover 54 jointly protect the transmission assembly 20, the reducer 42 and the DC generator 41.

[0048] The working principle of the present invention is as follows: when the train is running, it will produce violent vibrations. At this time, the relative displacement between the side frame and the bolster will drive the upper earring 51 and the lower earring 52 and the structure connected thereto to move relative to each other. The linear motion generated by the vibration is converted into rotational motion through the transmission assembly 20, and then transmitted to the third bevel gear 43 through the left bevel gear 25 or the right bevel gear 27. The third bevel gear drives the central axis of the reducer 42 to rotate, and the rotation is then transmitted to the DC generator through the reducer, thereby converting mechanical energy into electrical energy. At the same time, the function of vibration reduction is achieved through the resistance torque generated by the DC generator during the rotation process.

[0049] Embodiment 2

[0050] This embodiment provides a vibration reduction system based on energy recovery, including the vibration reduction device based on energy recovery in the first embodiment, and also including a DC boost module and a supercapacitor energy storage module. The energy recovery vibration reduction device reduces vibration through the resistance torque provided during the rotation of the DC generator, while the DC generator converts mechanical energy into electrical energy, the DC boost module filters and boosts the unstable electrical signal generated by the DC generator, and the supercapacitor energy storage module stores and allocates electrical energy.

[0051] Embodiment 3

[0052] This embodiment provides a train, including the vibration reduction system based on energy recovery in the second embodiment, wherein the vibration reduction device based on energy recovery is connected to the side frame and the bolster of the train bogie.

[0053] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0054] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A vibration reduction device based on energy recovery, characterized in that: It comprises a U-shaped double-tooth component, a transmission component, a mounting plate component and a DC generator, wherein the transmission component comprises a driving shaft, a first gear arranged at both ends of the driving shaft, and a second gear arranged in the middle of the driving shaft through a one-way bearing, the mounting plate component comprises a lower base plate and mounting plates installed on the left and right sides of the lower base plate, the driving shaft is rotatably arranged on the mounting plate, the lower base plate is slidably arranged on the bottom surface of the U-shaped double-tooth component, racks are arranged on the two arms of the U-shaped double-tooth component, the racks are meshed with the first gear, when the U-shaped double-tooth component and the lower base plate slide relative to each other, the racks drive the first gear to rotate, and the second gear is connected to the input end of the DC generator; The driving shaft comprises a driving left shaft and a driving right shaft, the driving left shaft and the driving right shaft are connected by a slip ring, the second gear comprises a left bevel gear and a right bevel gear, the left bevel gear is arranged on the driving left shaft through a left one-way bearing, the right bevel gear is arranged on the driving right shaft through a right one-way bearing, a reducer is arranged between the second gear and the DC generator, a third bevel gear is fixedly connected to the end of the central shaft of the reducer, and the third bevel gear is meshed with the left bevel gear and the right bevel gear at the same time; The first gear is arranged on the outside of the mounting plate, and the second gear is arranged on the inside of the mounting plate; The mounting plate assembly also includes a reducer mounting plate mounted on the lower base plate and connected to the two mounting plates, and the reducer is mounted on the reducer mounting plate.

2. The vibration reduction device based on energy recovery according to claim 1, characterized in that: The U-shaped double-tooth component includes a bottom connecting plate and a toothed rib plate vertically and symmetrically arranged on the bottom connecting plate, a sliding block is arranged on the inner side of the bottom connecting plate, a linear slide rail is arranged on the outer side of the lower bottom plate, and limit blocks are respectively arranged on the upper and lower ends of the linear slide rail.

3. The vibration reduction device based on energy recovery according to claim 1, characterized in that: The mounting plate assembly also includes an upper base plate, which is connected to the mounting plate and the reducer mounting plate and is arranged opposite to the lower base plate.

4. The vibration reduction device based on energy recovery according to claim 2, characterized in that: An upper earring is arranged at one end of the bottom connecting plate, and a lower earring arranged opposite to the upper earring is arranged on the lower bottom plate, and the lower earring is located at the other end of the bottom connecting plate.

5. The vibration reduction device based on energy recovery according to claim 1, characterized in that: The end of the driving shaft and the end of the central shaft of the reducer are both provided with a gear pressing block, and the gear pressing block limits the first gear and the third bevel gear.

6. A vibration reduction system based on energy recovery, characterized in that: It comprises a vibration reduction device based on energy recovery as described in any one of claims 1 to 5, a DC boost module and a supercapacitor energy storage module, wherein the vibration reduction device based on energy recovery reduces vibration through the resistance torque provided during the rotation of the DC generator, and the DC generator converts mechanical energy into electrical energy, the DC boost module filters and boosts the unstable electrical signal generated by the DC generator, and the supercapacitor energy storage module stores and allocates electrical energy.

7. A train, characterized in that: Including the vibration reduction system based on energy recovery as described in claim 6, the side frame and the bolster of the train bogie are respectively connected to the U-shaped double-tooth assembly and the lower base plate through a connecting structure, when the train vibrates, the side frame and the bolster produce relative displacement, driving the U-shaped double-tooth assembly and the lower base plate to produce relative sliding.

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