Shock absorber with self-power supply function

Abstract

The application discloses a shock absorber with self-power supply function and relates to the technical field of shock absorbers, which comprises a support structure, a power generation detection module, a damping module and an energy collector, wherein the power generation detection module and the damping module are connected to the support structure; the damping module comprises an electric driving device and a carrier table, the carrier table can generate displacement opposite to the vibration direction of the load under the driving of the electric driving device; the input end of the power generation detection module is in transmission connection with the carrier table, the power generation detection module can convert mechanical energy into electric energy when the carrier table moves and transmit the electric energy to the energy collector, the energy collector can store the electric energy transmitted by the power generation detection module and transmit the electric energy to the damping module; the power generation detection module can also detect the displacement of the carrier table and send an alarm signal when the displacement of the carrier table reaches a preset value. The shock absorber with self-power supply function can save energy, and the amplitude of the load can be detected, so that the safety is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock absorber, in particular to a shock absorber with self-power supply function. BACKGROUND

[0002] Vibration is a major public nuisance in the field of engineering. For example, the vibration propagation of wind turbine generator set or engine will directly affect the reliability and service life of the machinery. The vibration of the engine will also affect the accuracy and indication of the instruments of the engineering machinery, and even cause damage to the instruments. For this reason, workers will generally install some damping devices to reduce vibration. However, the current vibration device can only reduce the generation of vibration by using active vibration isolation or passive vibration isolation and other methods, and has few other functions. Many shock absorbers cannot warn whether the vibration of the load reaches a dangerous amplitude, and the safety is poor. Moreover, the current shock absorber using active vibration isolation often consumes a large amount of electric energy. Therefore, there is an urgent need for a shock absorber with self-power supply function which can convert mechanical energy into electric energy and supply power for itself, save energy, and detect load amplitude, and has higher safety. SUMMARY

[0003] The purpose of the present application is to provide a shock absorber with self-power supply function to solve the problems existing in the prior art, which can convert mechanical energy into electric energy and supply power for itself, save energy, and detect load amplitude, and has higher safety.

[0004] To achieve the above purpose, the present application provides the following scheme:

[0005] The present application provides a shock absorber with self-power supply function, comprising a support structure, a power generation detection module, a damping module and an energy collector, the power generation detection module and the damping module are connected to the support structure; the damping module comprises an electric drive device and a load table, the load table is drivingly connected to the output end of the drive device, the load table is used for setting a load, and the load table can generate displacement opposite to the vibration direction of the load under the drive of the electric drive device; the power generation detection module has an input end, the input end of the power generation detection module is drivingly connected to the load table, the power generation detection module can convert the mechanical energy of the load table movement into electric energy and transmit it to the energy collector, the energy collector can rectify the electric energy transmitted by the power generation detection module and transmit the rectified current to the damping module; the power generation detection module can also detect the displacement of the load table and send an alarm signal when the displacement of the load table reaches a preset value.

[0006] In some embodiments, the damping module further comprises a first ring gear, a first planetary gear, a first sun gear and a first connecting member, the electric drive device is an electric motor, the electric drive device and the first ring gear are fixedly connected to the support structure, the first sun gear is coaxially arranged with the output shaft of the electric drive device and is fixedly connected, the first sun gear is located in the first ring gear and is coaxially arranged with the first ring gear, the first planetary gear is arranged between the first ring gear and the sun gear, the first planetary gear is engaged with the first sun gear and the first ring gear respectively, the first connecting member is slidingly connected to the support structure in the vertical direction, a first sliding groove extending in the horizontal direction is arranged on the first connecting member, a first sliding shaft is fixedly connected to the first planetary gear, the axis of the first sliding shaft is parallel to the axis of the center shaft of the first planetary gear and has a spacing, the first sliding shaft is slidingly connected in the first sliding groove, the two sides of the first sliding shaft are in contact with the two inner sides of the first sliding groove opposite to each other, and the object table is fixedly connected to the top end of the first connecting member.

[0007] In some embodiments, a control assembly and an acceleration sensor are further included, the acceleration sensor is fixedly connected to the object table, the acceleration sensor can detect the acceleration when the object table moves, and the control assembly can control the rotating speed and direction of the output shaft of the electric drive device according to the detection result of the acceleration sensor.

[0008] In some embodiments, the power generation detection module comprises a generator, a second ring gear, a second planetary gear, a second sun gear and a second connecting member, the generator and the second ring gear are fixedly connected to the support structure, the second sun gear is coaxially arranged with the input shaft of the generator and is fixedly connected, the second sun gear is located in the second ring gear and is coaxially arranged with the second ring gear, the second planetary gear is arranged between the second ring gear and the sun gear, the second planetary gear is engaged with the second sun gear and the second ring gear, the second connecting member is slidingly connected to the support structure in the vertical direction, a second sliding groove extending in the horizontal direction is arranged on the second connecting member, a second sliding shaft is fixedly connected to the second planetary gear, the axis of the second sliding shaft is parallel to the center shaft of the second planetary gear and has a spacing, the second sliding shaft is slidingly connected in the second sliding groove, the two sides of the second sliding shaft are in contact with the two inner sides of the second sliding groove opposite to each other, and the second connecting member is fixedly connected with the object table and forms an input end of the power generation detection module.

[0009] In some embodiments, the damping module further comprises at least one spring, the spring is vertically arranged, one end of the spring is fixedly connected to the support structure, and the other end is fixedly connected to the object table.

[0010] In some embodiments, the power generation detection module further comprises a first limiting plate, the first limiting plate is provided with a first through hole and a first mounting shaft, the center of the first sun gear is fixedly connected with a first center shaft, the first center shaft is rotatably connected in the first through hole, the center of the first planetary gear is provided with a first center hole, and the first mounting shaft is rotatably connected in the first center hole; the damping module further comprises a second limiting plate, the second limiting plate is provided with a second through hole and a second mounting shaft, the center of the second sun gear is fixedly connected with a second center shaft, the second center shaft is rotatably connected in the second through hole, the center of the second planetary gear is provided with a second center hole, and the second mounting shaft is rotatably connected in the second center hole.

[0011] In some embodiments, the first connecting piece comprises a first sliding rod, a first support rod and a first fixing piece, one end of the first support rod is fixedly connected to the first sliding rod, the first sliding rod is horizontally arranged and both ends thereof are respectively slidably connected to the support structure in the vertical direction, the first sliding groove is arranged on the first sliding rod, the first fixing piece is fixedly connected to the first ring gear, the first fixing piece is provided with a first guide hole extending in the vertical direction, and the first support rod penetrates and is slidably connected in the first guide hole; the second connecting piece comprises a second sliding rod, a second support rod and a second fixing piece, both ends of the second support rod are fixedly connected to the second sliding rod, the second sliding rod is horizontally arranged and both ends thereof are respectively slidably connected to the support structure in the vertical direction, the second sliding groove is arranged on the second sliding rod, the second fixing piece is fixedly connected to the second ring gear, the second fixing piece is provided with a second guide hole extending in the vertical direction, and the second support rod penetrates and is slidably connected in the first guide hole; and the end of the first support rod away from the first sliding rod and the end of the second support rod away from the second sliding rod are both fixedly connected to the object table.

[0012] In some embodiments, the support structure comprises a bottom plate, two side plates, a first support frame, a second support frame, a driving frame and a power generator frame, the two side plates are oppositely arranged and respectively fixedly connected to both ends of the bottom plate, the two side plates are perpendicular to the bottom plate, the first support frame, the second support frame, the driving frame and the power generator frame are all fixedly connected to the bottom plate, the first support is fixedly connected to the first support frame, the second ring gear is fixedly connected to the second support frame, the upper sides of the driving frame and the power generator frame are both provided with damping pads, and the electric driving device and the power generator are respectively fixedly connected to the damping pads of the driving frame and the power generator frame.

[0013] In some embodiments, the power generation detection module further comprises a friction assembly, the friction assembly comprises a substrate, a friction electrode, a triboelectric layer and a mounting plate arranged in sequence, the substrate and the mounting plate are both insulating materials, the substrate is fixedly connected to the side plate, the friction electrode is fixedly connected to the substrate, the triboelectric layer is slidingly connected to the friction electrode in the vertical direction, the triboelectric layer is fixedly connected to the mounting plate, and the friction electrode and the triboelectric layer are both connected to the energy collector.

[0014] In some embodiments, the friction electrode is provided with two first and second electrodes in sequence along the vertical direction, the first and second electrodes have a spacing therebetween, and the friction assembly further comprises a warning electrode, a signal lamp and a warning lamp, the warning electrode is fixedly connected to the side surface close to the lower end of the substrate and has a spacing from the second electrode, the sizes of the first and second electrodes are equal to those of the friction electrode, and the side of the warning electrode away from the substrate is flush with the friction electrode, the signal lamp is connected to the friction electrode and forms a first loop, and the warning lamp is connected in parallel to the first loop and connected to the warning electrode.

[0015] The present application has the following technical effects relative to the prior art:

[0016] The vibration damper with the self-power supply function can drive the object table to generate displacement opposite to the vibration direction of the load through the electric driving device, so as to realize vibration reduction. Moreover, the energy generated by the electric driving device and the energy generated by the load vibration can act on the object table and make the object table move. The mechanical energy generated by the movement of the object table can be converted into electric energy through the power generation detection module, that is, the energy of the load vibration and the energy of the electric driving device are indirectly utilized. Then, the power generation detection module can deliver the electric energy to the vibration reduction module, so as to supply power to the vibration reduction module. In addition, a preset value of the object table can be set in advance. When the displacement of the object table reaches the preset value, it indicates that the amplitude is large and reaches a dangerous state. At this time, the displacement of the object table can be detected through the power generation detection module, and an alarm signal can be sent when the preset value is reached, so as to improve the safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A perspective view of a shock absorber with self-power supply function in some embodiments of the present application;

[0019] Figure 2 A perspective view of a partial shock absorbing module in some embodiments of the present application;

[0020] Figure 3 A perspective view of a partial power generation detection module in some embodiments of the present application;

[0021] Figure 4 An exploded view of a shock absorber with self-power supply function in some embodiments of the present application;

[0022] Figure 5 A structural view of a first ring gear, a first planetary gear and a first sun gear in some embodiments of the present application;

[0023] Figure 6 A perspective view of a friction assembly in some embodiments of the present application;

[0024] Figure 7 A perspective view of a first connecting member in some embodiments of the present application;

[0025] Figure 8 A structural view of a shock absorber with self-power supply function in some embodiments of the present application;

[0026] Figure 9 A comparison chart of transmission rate curves of a conventional shock absorber with self-power supply function, a spring shock absorber in the present application and a stage shock absorber controlled by an electric driver in the present application;

[0027] In the figure: 1, support structure; 11, bottom plate; 12, side plate; 13, first support frame; 14, second support frame; 15, drive frame; 16, generator frame; 17, damping pad; 2, damping module; 21, electric drive device; 211, first coupling; 22, object table; 221, acceleration sensor; 23, first ring gear; 24, first planetary gear; 241, first sliding shaft; 25, first sun gear; 251, first central shaft; 26, first connecting piece; 261, first sliding rod; 262, first sliding groove; 263, first support rod; 264, first fixing piece; 27, spring; 28, first limiting plate; 281, first through hole; 282, first mounting shaft; 3, power generation detection module; 31, generator; 311, second coupling; 32, second ring gear; 33, second planetary gear; 331, second sliding shaft; 34, second sun gear; 341, second central shaft; 35, second connecting piece; 351, second sliding rod; 352, second sliding groove; 353, second support rod; 354, second fixing piece; 36, friction assembly; 361, base plate; 362, friction electrode; 3621, first electrode; 3622, second electrode; 363, triboelectric layer; 364, mounting plate; 365, early warning electrode; 37, second limiting plate; 371, second through hole; 372, second mounting shaft; 4, energy collector. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] The present application aims to provide a damping device with self-power supply function to solve the problems in the prior art, which can convert mechanical energy into electrical energy and supply power for itself, save energy, and detect load amplitude, and is safer.

[0030] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] The present application provides a damping device with self-power supply function, as shown in Figures 1-8As shown, it comprises: a support structure 1, a power generation detection module 3, a damping module 2 and an energy collector 4, the power generation detection module 3 and the damping module 2 are both connected on the support structure 1; the damping module 2 comprises an electric drive device 21 and a load table 22, the load table 22 is in transmission connection with the output end of the drive device, the load table 22 is used for setting a load, and the load table 22 can generate displacement opposite to the vibration direction of the load under the drive of the electric drive device 21; the power generation detection module 3 has an input end, the input end of the power generation detection module 3 is in transmission connection with the load table 22, the power generation detection module 3 can convert the mechanical energy of the load table 22 into electric energy and transmit to the energy collector 4, the energy collector 4 can rectify the electric energy transmitted by the power generation detection module 3 and transmit the rectified current to the damping module 2; the power generation detection module 3 can also detect the displacement of the load table 22 and send an alarm signal when the displacement of the load table 22 reaches a preset value.

[0032] The damping device with self-power supply function provided by the application can drive the load table 22 to generate displacement opposite to the vibration direction of the load through the electric drive device 21, so as to realize damping, and the energy of the load vibration and the energy generated by the output end of the electric drive device 21 can act on the load table 22 and make the load table 22 move, the mechanical energy generated by the movement of the load table 22 can be converted into electric energy through the power generation detection module 3, that is, the energy of the load vibration and the energy of the electric drive device 21 are indirectly utilized, then the power generation detection module 3 delivers the electric energy to the damping module 2, so as to supply power to the damping module 2. In addition, a preset value of the load table 22 can be set in advance, when the displacement of the load table 22 reaches the preset value, it indicates that the amplitude is large and reaches a dangerous state, at this time, the displacement of the load table 22 can be detected through the power generation detection module 3, and an alarm signal is sent when the preset value is reached, so as to improve the safety. In addition to the power generation detection module 3, an external power supply is also needed to supply power to the damping module 2.

[0033] In the embodiment, the damping module 2 further comprises a first ring gear 23, a first planetary gear 24, a first sun gear 25 and a first connecting member 26, the electric drive device 21 is a motor, the electric drive device 21 and the first ring gear 23 are fixedly connected to the support structure 1, the first sun gear 25 is coaxially arranged with an output shaft of the electric drive device 21 and is fixedly connected, the first sun gear 25 is arranged in the first ring gear 23 and is coaxially arranged with the first ring gear 23, the first planetary gear 24 is arranged between the first ring gear 23 and the sun gear, the first planetary gear 24 is meshed with the first sun gear 25 and the first ring gear 23 respectively, the first connecting member 26 is slidingly connected to the support structure 1 in the vertical direction, the first connecting member 26 is provided with a first sliding groove 262 extending in the horizontal direction, the first planetary gear 24 is fixedly connected with a first sliding shaft 241, the axis of the first sliding shaft 241 is parallel to the axis of the first planetary gear 24 and has a spacing, the first sliding shaft 241 is slidingly connected in the first sliding groove 262, the two sides of the first sliding shaft 241 are in contact with the two opposite inner sides of the first sliding groove 262 respectively, and the object table 22 is fixedly connected to the top end of the first connecting member 26. When the damper works, the electric drive device 21 drives the first sun gear 25 to rotate, the first sun gear 25 drives the first planetary gear 24 to move along the circumference of the first ring gear 23, and then the first sliding shaft 241 rotates along the circumferential track with the center of the first planetary gear 24 as the center, at this time, the first sliding shaft 241 will slide horizontally along the first sliding groove 262 and generate an acting force on the inner side of the first sliding groove 262, and then the first connecting member 26 slides in the vertical direction, and drives the object table 22 to slide in the vertical direction, by controlling the rotating speed and rotating direction of the electric drive device 21, the object table 22 can generate displacement opposite to the direction of load vibration, and then active vibration isolation is realized. The motor is preferably a servo motor.

[0034] Specifically, the transmission ratio of the first planetary gear 24 and the first sun gear 25 is:

[0035]

[0036] In the formula, Z R is the number of teeth of the first ring gear 23, Z S is the number of teeth of the first sun gear 25, the transmission ratio of the first planetary gear 24 and the first sun gear 25 is greater than 1, the first planetary gear 24 can amplify the torque output by the first sun gear 25, and then the control of the object table 22 is facilitated.

[0037] In the embodiment, the control assembly and the acceleration sensor 221 are further included, the acceleration sensor 221 is fixedly connected to the object table 22, the acceleration sensor 221 can detect the acceleration when the object table 22 moves, and the control assembly can control the rotating speed and rotating direction of the output shaft of the electric driving device 21 according to the detection result of the acceleration sensor 221. By arranging the acceleration sensor 221, the control device can control the rotating speed and rotating direction of the output shaft of the electric driving device 21 according to the detection result of the acceleration sensor 221, and then the displacement speed and displacement direction of the object table 22 can be adjusted in real time according to the load condition.

[0038] The control assembly is controlled by a ceiling damping feedback control algorithm, and the transfer function can be written as:

[0039]

[0040] In the formula, x1 is the vibration response displacement of the object table, x0 is the displacement of the support structure, C is the equivalent damping of the vibration damper with self-power supply function, K is the equivalent stiffness of the support structure and the object table, M is the mass of the object table, s=jω is a complex variable of Laplace transform, ω is a frequency domain coefficient, and λ is a gain coefficient of the ceiling damping.

[0041] It should be noted that when the frequency and amplitude of the vibration of the load have a known rule, the control assembly and the acceleration sensor 221 can not be arranged, and the rotating speed and rotating direction of the output shaft of the electric driving device 21 can be directly controlled according to the known rule.

[0042] In an embodiment of the present application, the power generation detection module 3 comprises a generator 31, a second ring gear 32, a second planetary gear 33, a second sun gear 34 and a second connecting member 35. The generator 31 and the second ring gear 32 are fixedly connected to the support structure 1. The second sun gear 34 is coaxially arranged with the input shaft of the generator 31 and is fixedly connected. The second sun gear 34 is located in the second ring gear 32 and is coaxially arranged with the second ring gear 32. The second planetary gear 33 is arranged between the second ring gear 32 and the sun gear. The second planetary gear 33 is in meshing with the second sun gear 34 and the second ring gear 32. The second connecting member 35 is slidingly connected to the support structure 1 in the vertical direction. The second connecting member 35 is provided with a second sliding groove 352 extending in the horizontal direction. The second sliding shaft 331 is fixedly connected to the second planetary gear 33. The axis of the second sliding shaft 331 is parallel to the central axis of the second planetary gear 33 with a spacing. The second sliding shaft 331 is slidingly connected in the second sliding groove 352. The two sides of the second sliding shaft 331 are in contact with the two inner sides of the second sliding groove 352 respectively. The second connecting member 35 is fixedly connected with the object table 22 and forms an input end of the power generation detection module 3. When the damper works, the object table 22 moves in the vertical direction under the drive of the electric drive device 21, thereby driving the second connecting member 35 to move in the vertical direction. At this time, the inner side wall of the second sliding groove 352 will generate an acting force on the second sliding shaft 331, and the sliding shaft will slide in the second sliding groove 352. At the same time, the sliding shaft moves around the track with the center of the second planetary gear 33 as the center, and drives the second planetary gear 33 to rotate along the circumference of the second ring gear 32, thereby driving the second sun gear 34 to rotate. The second sun gear 34 transmits torque to the input shaft of the generator 31, and the generator 31 can generate electric energy and transmit the electric energy to the energy collector 4. The generator 31 is preferably a permanent magnet generator 31.

[0043] Specifically, the transmission ratio of the second planetary gear 33 and the second sun gear 34 is:

[0044]

[0045] In the formula, Z R is the number of teeth of the second ring gear 32, Z S is the number of teeth of the second sun gear 34. At this time, the transmission ratio of the second planetary gear and the second sun gear is less than 1. The second planetary gear 33 can transmit higher rotating speed to the second sun gear 34, that is, the rotating speed of the input shaft of the generator can be increased, and the power generation efficiency can be improved.

[0046] In an embodiment of the present embodiment, the damping module 2 further comprises at least one spring 27, the spring 27 is vertically arranged, one end of the spring 27 is fixedly connected to the support structure 1, and the other end is fixedly connected to the object table 22. When the damper works, the vibration generated by the load is transmitted to the object table 22, the spring 27 is compressed and generates a force on the object table 22, thereby realizing passive vibration isolation. Preferably, the spring 27 is provided with two.

[0047] In an embodiment of the present embodiment, the power generation detection module 3 further comprises a first limiting plate 28, the first limiting plate 28 is provided with a first through hole 281 and a first mounting shaft 282, the center of the first sun gear 25 is fixedly connected with a first center shaft 251, the first center shaft 251 is rotatably connected in the first through hole 281, the center of the first planetary gear 24 is provided with a first center hole, and the first mounting shaft 282 is rotatably connected in the first center hole; the damping module 2 further comprises a second limiting plate 37, the second limiting plate 37 is provided with a second through hole 371 and a second mounting shaft 372, the center of the second sun gear 34 is fixedly connected with a second center shaft 341, the second center shaft 341 is rotatably connected in the second through hole 371, the center of the second planetary gear 33 is provided with a second center hole, and the second mounting shaft 372 is rotatably connected in the second center hole. The first limiting plate 28 can relatively fix the positions of the first planetary gear 24 and the first sun gear 25 in the direction parallel to the center axis of the first sun gear 25, the second limiting plate 37 can relatively fix the positions of the second planetary gear 33 and the second sun gear 34 in the direction parallel to the center axis of the second sun gear 34, thereby preventing the first planetary gear 24 and the second planetary gear 33 from falling off. The output shaft of the motor is fixedly connected with the first center shaft 251 through a first coupling 211, and the input shaft of the generator 31 is fixedly connected with the second center shaft 341 through a second coupling 311.

[0048] In an embodiment of the present application, the first connecting member 26 comprises a first sliding rod 261, a first supporting rod 263 and a first fixing member 264, one end of the first supporting rod 263 is fixedly connected to the first sliding rod 261, the first sliding rod 261 is horizontally arranged and both ends thereof are slidingly connected to the support structure 1 along the vertical direction, a first sliding groove 262 is arranged on the first sliding rod 261, the first fixing member 264 is fixedly connected to the first gear ring 23, a first guide hole extending along the vertical direction is arranged on the first fixing member 264, the first supporting rod 263 passes through and is slidingly connected in the first guide hole, the second connecting member 35 comprises a second sliding rod 351, a second supporting rod 353 and a second fixing member 354, both ends of the second supporting rod 353 are fixedly connected to the second sliding rod 351, the second sliding rod 351 is horizontally arranged and both ends thereof are slidingly connected to the support structure 1 along the vertical direction, a second sliding groove 352 is arranged on the second sliding rod 351, the second fixing member 354 is fixedly connected to the second gear ring 32, a second guide hole extending along the vertical direction is arranged on the second fixing member 354, the second supporting rod 353 passes through and is slidingly connected in the first guide hole, the end of the first supporting rod 263 away from the first sliding rod 261 and the end of the second supporting rod 353 away from the second sliding rod 351 are both fixedly connected to the object table 22. The first guide hole on the first fixing member 264 limits the first supporting rod 263 in the horizontal direction, the second guide hole on the second fixing member 354 can limit the second supporting rod 353 in the horizontal direction, the first fixing member 264 and the second fixing member 354 can prevent the moving direction of the first supporting rod 263 and the second supporting rod 353 from deviating from the vertical direction and causing the object table 22 to tilt, thereby improving the safety.

[0049] In an embodiment of the present application, the support structure 1 comprises a bottom plate 11, two side plates 12, a first supporting frame 13, a second supporting frame 14, a driving frame 15 and a generator frame 16, the two side plates 12 are oppositely arranged and are both fixedly connected to both ends of the bottom plate 11, the two side plates 12 are both perpendicular to the bottom plate 11, the first supporting frame 13, the second supporting frame 14, the driving frame 15 and the generator frame 16 are all fixedly connected to the bottom plate 11, the first gear ring 23 is fixedly connected to the first supporting frame 13, the second gear ring 32 is fixedly connected to the second supporting frame 14, the upper sides of the driving frame 15 and the generator frame 16 are both provided with a damping pad 17, the electric driving device 21 and the generator 31 are both fixedly connected to the damping pad 17 of the driving frame 15 and the generator frame 16 respectively. The damping pad 17 can dissipate the vibration energy transmitted during the working process of the electric driving device 21 and the generator 31, so as to prevent the vibration energy of the generator 31 and the electric driving device 21 from being transmitted to the object table 22, thereby optimizing the damping effect. Preferably, the damping pad 17 is a rubber pad.

[0050] In an embodiment of the present application, the power generation detection module 3 further comprises a friction assembly 36, the friction assembly 36 comprising a substrate 361, a friction electrode 362, a friction electrification layer 363 and a mounting plate 364 arranged in sequence, the substrate 361 and the mounting plate 364 are both made of insulating material, the substrate 361 is fixedly connected to the side plate 12, the friction electrode 362 is fixedly connected to the substrate 361, the friction electrification layer 363 is slidably connected to the friction electrode 362 in the vertical direction, the friction electrification layer 363 is fixedly connected to the mounting plate 364, and the friction electrode 362 and the friction electrification layer 363 are both connected to the energy collector; at least one of the four ends of the first slide rod 261 and the second slide rod 351 is a power generation end and is slidably connected to the side plate 12 through the friction assembly 36, and the power generation end is fixedly connected to the mounting plate 364. When the first slide rod 261 or the second slide rod 351 moves in the vertical direction, the mounting plate 364 moves in the vertical direction, the mounting plate 364 drives the friction electrification layer 363 to move in the vertical direction, and the friction electrification layer 363 and the friction electrode 362 slide relative to each other and rub against each other, thereby generating electric energy, and the electric energy generated by friction is transmitted to the energy collector 4 and used to power the damping module 2. Preferably, the mounting plate 364 and the substrate 361 are both made of acrylic plate; preferably, the two ends of the first slide rod 261 are slidably connected to the side plate 12 through two friction assemblies 36, the two ends of the second slide rod 351 are slidably connected to the side plate 12 through two friction assemblies 36, and the four sliding assemblies generate electricity by friction, thereby improving the efficiency of generating electric energy.

[0051] In this embodiment, two friction electrodes 362 are arranged vertically in sequence, namely a first electrode 3621 and a second electrode 3622. There is a gap between the first electrode 3621 and the second electrode 3622. The friction assembly 36 also includes a warning electrode 365, a signal light, and a warning lamp. The warning electrode 365 is fixedly connected to the side near the lower end of the substrate 361 and is spaced from the second electrode 3622. The dimensions of the first electrode 3621 and the second electrode 3622 are equal to those of the friction electrode 365. The side of the warning electrode 365 away from the substrate is flush with the friction electrode. The signal lamp is connected to the friction electrode 362 and forms a first circuit. The warning lamp is connected in parallel to the first circuit and is connected to the warning electrode 365. When no load is applied, the friction electrode 362 coincides with the first electrode, and neither the signal light nor the warning light illuminates. When the vibration amplitude is small, the triboelectric layer 363 slides along the friction electrode 362, causing charges of opposite polarity to those on the first electrode 3621 and the second electrode 3622. To maintain electrostatic balance in the first circuit, the charges on the first electrode 3621 and the second electrode 3622 flow to each other, generating current in the first circuit (the circuit containing the warning light is already electrostatically balanced). In a balanced state (where the warning light is not illuminated), when the vibration amplitude is large, the stage 22 undergoes a large displacement, causing the triboelectric layer 363 to slide to the lower end of the substrate 361. At this time, the triboelectric layer 363 comes into contact with the warning electrode 365. Due to the large potential difference between the triboelectric layer 363 and the warning electrode 365, air breakdown occurs between them, generating direct current, which causes the warning light to illuminate. Once the staff observes the warning light illuminating, they can take appropriate emergency measures. The warning light can be installed on the support structure or at another location far from the support structure 1 and connected to the warning electrode 365 via a circuit.

[0052] like Figure 9 As shown, traditional passive vibration damping mechanisms exhibit high natural frequencies and large resonance peak amplitudes during vibration reduction. However, using the self-powered vibration damper of this invention, as seen by the dotted line in the figure, the passive vibration isolation (i.e., spring) transmittance decreases at the low-frequency resonance peak, shifting the natural frequency forward. However, due to the higher damping, the vibration reduction performance in the high-frequency range decreases. The dotted line in the figure shows that the composite vibration isolation of this invention (i.e., vibration isolation through displacement of the platform controlled by an electric drive device and a combination of spring vibration isolation) exhibits better vibration reduction effects and superior overall vibration reduction performance. The low-frequency value is 10. 0 -10 2 rad / s, 10 at high frequencies 2 -10 5 rad / s.

[0053] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A shock absorber having a self-power supply function, characterized by: The utility model relates to a support structure, power generation detection module, damping module and energy collector, the power generation detection module and the damping module are connected on the support structure, The damping module includes electric drive device, object table and first connecting piece, the object table is transmission connection with the output end of drive device, the object table is used for setting load, the object table can produce displacement opposite with the vibration direction of load under the drive of electric drive device, the first connecting piece is connected in the vertical direction on the support structure, the power generation detection module has input, the input of power generation detection module is transmission connection with the object table, the power generation detection module can convert mechanical energy when the object table moves into electric energy and transmit to energy collector, the energy collector can rectify the electric energy of power generation detection module transmission and transmit the rectified current to damping module, the power generation detection module can also detect the displacement of object table and send out alarm signal when the displacement of object table reaches the preset value, the power generation detection module also includes: friction assembly, the friction assembly includes the substrate that sets out successively, friction electrode, friction electrification layer and mounting plate, the substrate and the mounting plate are all insulating material, the substrate is fixedly connected on the support structure, the friction electrode is fixedly connected with the substrate, the friction electrification layer is connected in the vertical direction with the friction electrode, the friction electrification layer is fixedly connected with the mounting plate, the friction electrode and the friction electrification layer are all connected with the energy collection ware signal, the first connecting piece is fixedly connected on the mounting plate, the friction electrode sets out successively two in the vertical direction and is first electrode and second electrode respectively, the first electrode has spacing with the second electrode, the friction assembly also includes early warning electrode, signal lamp and early warning lamp, the early warning electrode is fixedly connected on the side close to the lower end of substrate and has spacing with the second electrode, the size of first electrode and second electrode is equal with the friction electrode, the side away from the substrate of early warning electrode is flush with the friction electrode, the signal lamp is conducted with the friction electrode and forms first loop, the early warning lamp is connected in parallel on the first loop, the early warning lamp is conducted with the early warning electrode. ​ 2. The damper with self-power supply function according to claim 1, characterized in that: The damping module further comprises a first ring gear, a first planetary gear and a first sun gear, the electric drive device is a motor, the electric drive device and the first ring gear are fixedly connected to the support structure, the first sun gear is coaxially arranged with the output shaft of the electric drive device and is fixedly connected, the first sun gear is located in the first ring gear and is coaxially arranged with the first ring gear, the first planetary gear is arranged between the first ring gear and the sun gear, the first planetary gear is meshed with the first sun gear and the first ring gear respectively, a first sliding groove extending in the horizontal direction is arranged on the first connecting piece, a first sliding shaft is fixedly connected to the first planetary gear, the axis of the first sliding shaft is parallel to the axis of the center shaft of the first planetary gear and has a spacing, the first sliding shaft is slidingly connected in the first sliding groove, the two sides of the first sliding shaft are in contact with the two inner sides of the first sliding groove opposite to each other, and the object table is fixedly connected to the top end of the first connecting piece.

3. The damper with self-power supply function according to claim 2, characterized in that: Further comprising a control assembly and an acceleration sensor, the acceleration sensor is fixedly connected to the object table, the acceleration sensor can detect the acceleration when the object table moves, and the control assembly can control the rotating speed and rotating direction of the output shaft of the electric drive device according to the detection result of the acceleration sensor.

4. The damper with self-power supply function according to claim 2, characterized in that: The power generation detection module comprises a generator, a second ring gear, a second planetary gear, a second sun gear and a second connecting piece, the generator and the second ring gear are fixedly connected to the support structure, the second sun gear is coaxially arranged with the input shaft of the generator and is fixedly connected, the second sun gear is located in the second ring gear and is coaxially arranged with the second ring gear, the second planetary gear is arranged between the second ring gear and the sun gear, the second planetary gear is meshed with the second sun gear and the second ring gear, the second connecting piece is slidingly connected to the support structure in the vertical direction, a second sliding groove extending in the horizontal direction is arranged on the second connecting piece, a second sliding shaft is fixedly connected to the second planetary gear, the axis of the second sliding shaft is parallel to the center shaft of the second planetary gear and has a spacing, the second sliding shaft is slidingly connected in the second sliding groove, the two sides of the second sliding shaft are in contact with the two inner sides of the second sliding groove opposite to each other, and the second connecting piece is fixedly connected with the object table and forms an input end of the power generation detection module.

5. The damper with self-power supply function according to claim 2, characterized in that: The damping module further comprises at least one spring, the spring is vertically arranged, one end of the spring is fixedly connected to the support structure, and the other end is fixedly connected to the object table.

6. The self-powered shock absorber of claim 4, wherein: The power generation detection module further comprises a first limiting plate, a first through hole and a first mounting shaft are arranged on the first limiting plate, a first center shaft is fixedly connected to the center of the first sun gear, the first center shaft is rotatably connected in the first through hole, a first center hole is arranged at the center of the first planetary gear, and the first mounting shaft is rotatably connected in the first center hole; the damping module further comprises a second limiting plate, a second through hole and a second mounting shaft are arranged on the second limiting plate, a second center shaft is fixedly connected to the center of the second sun gear, the second center shaft is rotatably connected in the second through hole, a second center hole is arranged at the center of the second planetary gear, and the second mounting shaft is rotatably connected in the second center hole.

7. The self-powered shock absorber of claim 4, wherein: The first connecting piece comprises a first sliding rod, a first support rod and a first fixing piece, one end of the first support rod is fixedly connected to the first sliding rod, the first sliding rod is horizontally arranged and both ends thereof are slidably connected to the support structure in the vertical direction, the first sliding groove is arranged on the first sliding rod, the first fixing piece is fixedly connected to the first ring gear, the first fixing piece is provided with a first guide hole extending in the vertical direction, and the first support rod penetrates through and is slidably connected in the first guide hole; the second connecting piece comprises a second sliding rod, a second support rod and a second fixing piece, both ends of the second support rod are fixedly connected to the second sliding rod, the second sliding rod is horizontally arranged and both ends thereof are slidably connected to the support structure in the vertical direction, the second sliding groove is arranged on the second sliding rod, the second fixing piece is fixedly connected to the second ring gear, the second fixing piece is provided with a second guide hole extending in the vertical direction, and the second support rod penetrates through and is slidably connected in the first guide hole; and the end of the first support rod away from the first sliding rod and the end of the second support rod away from the second sliding rod are both fixedly connected to the object table.

8. The damper with self-power supply function according to claim 7, characterized in that: The support structure comprises a bottom plate, two side plates, a first support frame, a second support frame, a driving frame and a power generator frame, the two side plates are oppositely arranged and are fixedly connected to both ends of the bottom plate respectively, the two side plates are perpendicular to the bottom plate, the first support frame, the second support frame, the driving frame and the power generator frame are all fixedly connected to the bottom plate, the first support is fixedly connected to the first support frame, the second ring gear is fixedly connected to the second support frame, and the upper sides of the driving frame and the power generator frame are both provided with damping pads, and the electric driving device and the power generator are fixedly connected to the damping pads of the driving frame and the power generator frame respectively.

9. The self-powered shock absorber of claim 8, wherein: The substrate is fixedly connected to the side plate; at least one of the four ends of the first sliding rod and the second sliding rod is a power generation end, and the power generation end is fixedly connected to the mounting plate.

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