Vibration energy recovery device

Abstract

The invention provides a vibration energy recovery device, and relates to the technical field of vibration energy utilization, the vibration energy recovery device comprises a magnetofluid bin, a movable rod, a mounting cylinder, a spiral magnetic flow pipe and an electric energy recovery mechanism, one end of the movable rod extends into the magnetofluid bin and is connected with a piston, and the other end of the movable rod is located outside the magnetofluid bin; the installation cylinder is located outside the magnetic fluid bin and provided with a first magnetic pole and a second magnetic pole which are opposite in polarity, and a magnetic field is formed between the first magnetic pole and the second magnetic pole. The spiral magnetic flow pipe is located in a magnetic field between the first magnetic pole and the second magnetic pole, and the two ends of the spiral magnetic flow pipe communicate with the rod cavity and the rodless cavity correspondingly. Vibration power generation can be achieved, the magnetic fluid flows in the spiral magnetic flow pipe and cuts magnetic induction lines to generate electric energy, the flow path is longer, and compared with the structural form that the magnetic fluid only flows in the axial direction and cuts the magnetic induction lines, the power generation capacity and the vibration relieving capacity are higher.

Description

Technical Field

[0001] The invention relates to the technical field of vibration energy utilization, and in particular to a vibration energy recovery device. Background Art

[0002] During the operation of cars or other equipment, vibrations will occur, which will affect the stability of the car or equipment. For example, shock absorbers are installed in the suspension systems of most cars or on the equipment. Shock absorbers are the main components that generate damping force. Their function is to quickly attenuate the vibration of the car, improve the smoothness of the car's driving, enhance the adhesion between the wheels and the road, reduce the change in the body inclination angle caused by the inertia force of the car, improve the car's handling and stability, and extend the service life of the car.

[0003] At the same time, since vibration is ubiquitous, if the energy of vibration can be recovered, it can both attenuate equipment vibration and save energy. Summary of the invention

[0004] The purpose of the present invention is to provide a vibration energy recovery device to solve the problems existing in the above-mentioned prior art and to realize vibration power generation. It not only reasonably recycles and utilizes the vibration energy, but also reduces the vibration tendency between the two components, which is beneficial to ensure the smooth operation of the two components. In addition, in the present invention, the magnetic fluid flows in the spiral magnetic flux tube and cuts the magnetic flux lines to generate electrical energy. The flow path is longer, and the power generation capacity and the ability to alleviate vibration are stronger.

[0005] To achieve the above object, the present invention provides the following solutions: A vibration energy recovery device, comprising: A magnetic fluid warehouse, wherein magnetic fluid is stored inside the magnetic fluid warehouse; A moving rod, one end of which extends into the interior of the magnetic fluid chamber and is fixedly connected to the piston, and the other end of which is located outside the magnetic fluid chamber; the piston divides the internal cavity of the magnetic fluid chamber into a rod cavity and a rodless cavity; A mounting tube, the mounting tube is located outside the magnetic fluid compartment, a first magnetic pole and a second magnetic pole with opposite polarities are arranged in the mounting tube, and a magnetic field is formed between the first magnetic pole and the second magnetic pole; A spiral magnetic flux tube, wherein the spiral magnetic flux tube is located in the magnetic field between the first magnetic pole and the second magnetic pole, an angle is formed between an extension direction of the spiral magnetic flux tube and a direction of the magnetic field, and two ends of the spiral magnetic flux tube are respectively connected to the rod cavity and the rodless cavity; An electric energy recovery mechanism, wherein the electric energy collection end of the electric energy recovery mechanism is connected to the spiral magnetic flux tube, and is used to recover the electric energy generated by the flow of magnetic fluid in the radial magnetic field.

[0006] Preferably, two coaxial and sleeved magnetic isolation sleeves are arranged in the installation cylinder, the first magnetic pole and the second magnetic pole are respectively fixed on the two magnetic isolation sleeves to form a radial magnetic field, and the spiral magnetic flow tube is arranged in the radial magnetic field.

[0007] Preferably, the rod cavity and the rodless cavity are both connected to the spiral magnetic flow tube via thermal expansion bolts.

[0008] Preferably, the magnetic fluid storehouse, the mounting cylinder and the magnetic isolation sleeve are all made of heat-conducting materials.

[0009] Preferably, a cooling liquid bin which is slidable along its axial direction is also sleeved on the outer side of the top of the mounting tube, and a middle partition is fixed on the outer wall of the mounting tube, and the middle partition is slidingly and sealingly connected to the inner wall of the cooling liquid bin, so as to divide the internal cavity of the cooling liquid bin into an upper cooling cavity and a lower cooling cavity, and the end of the movable rod is fixedly connected to the upper cooling cavity; a spiral circulation tube is embedded in the top of the side wall of the mounting tube, and the two ends of the spiral circulation tube are respectively connected to the upper cooling cavity and the lower cooling cavity.

[0010] Preferably, at least two one-way pressure buffers are arranged on the middle partition plate, and the one-way pressure buffer comprises a pressure buffer body and a top plate connected to the end of the pressure buffer body through a middle column; a through hole connecting the upper cooling chamber and the lower cooling chamber is arranged on the pressure buffer body, a cover plate and a compression spring are arranged between the through hole and the top plate, the cover plate is buckled at the through hole, and the two ends of the compression spring are respectively connected to the cover plate and the top plate; there are at least two one-way pressure buffers with different orientations.

[0011] Preferably, a high-pressure gas sealing chamber is provided between the bottom of the cooling liquid chamber and the mounting tube.

[0012] Preferably, a cooling liquid tank buffer is provided between the top of the moving rod and the cooling liquid tank, a bottom partition is provided above the bottom plate of the rodless cavity, and a moving rod contact buffer is provided between the bottom partition and the bottom plate of the rodless cavity.

[0013] Preferably, a rod cavity buffer is also provided on the moving rod, and a gap is provided between the rod cavity buffer and the inner wall of the magnetic fluid warehouse; and a moving rod contact buffer is provided at the bottom of the piston.

[0014] Preferably, the electric energy recovery mechanism includes a current collecting film, a conductive tube, an electric energy recoverer and a recovery battery, the current collecting film is coated on the outer surface of the spiral magnetic flux tube, the conductive tube is located in the mounting tube, one end of the conductive tube is connected to the current collecting film, and the other end of the conductive tube is connected to the electric energy recoverer; the electric energy recoverer stores the electric energy in the recovery battery.

[0015] Compared with the prior art, the present invention has the following technical effects: The present invention can convert the vibration energy between two components that have produced relative position changes into electrical energy for storage, thereby realizing vibration power generation. It not only reasonably recycles the vibration energy, but also reduces the vibration tendency between the two components, which is beneficial to ensuring the smooth operation of the two components. In addition, in the present invention, the magnetic fluid flows in the spiral magnetic flux tube and cuts the magnetic flux lines to generate electrical energy, and the flow path is longer. Compared with the structural form in which the magnetic fluid only flows along the axial direction to cut the magnetic flux lines, the power generation capacity and the ability to alleviate vibration are stronger.

[0016] In other technical solutions of the present invention, the following technical effects are also achieved: In the present invention, the first magnetic pole and the second magnetic pole are both cylindrical, and there is a gap between the two to accommodate the spiral magnetic flux tube, and a radial magnetic field is formed in the gap. Compared with the magnetic field in the axial direction, the radial magnetic field space formed by the first magnetic pole and the second magnetic pole can be smaller, the magnetic field intensity is higher and more uniform, which is more conducive to the generation of induced current in the magnetic fluid and improves the vibration energy recovery efficiency.

[0017] In the present invention, a cooling liquid tank is provided on the outer side of the top of the magnetic fluid tank, which can properly dissipate heat from the magnetic fluid tank and prevent the high temperature generated by the magnetic fluid tank from affecting the service life of the internal components of the vibration energy recovery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a schematic diagram of the overall structure of the vibration energy recovery device in the present invention; Figure 2 for Figure 1 A cross-sectional view of Figure 3 for Figure 2 A partial enlarged view of middle A; Figure 4 It is a schematic diagram of the distribution structure of multiple one-way pressure relief members on the middle partition; Figure 5 It is a structural schematic diagram of a one-way pressure relief member; Figure 6 It is a schematic diagram of the structure of the moving rod contacting the buffer member; Description of reference numerals: 1. Magnetic fluid tank; 2. Moving rod; 3. Mounting cylinder; 4. Spiral magnetic fluid tube; 5. Piston; 6. First magnetic pole; 7. Second magnetic pole; 8. Magnetic isolation sleeve; 9. Thermal expansion bolt; 10. Spiral circulation pipe; 11. Cooling liquid tank; 12. Middle partition; 13. One-way pressure relief member; 14. Pressure relief member body; 15. Top plate; 16. Through hole; 17. Compression spring; 18. High-pressure gas sealing tank; 19. Cooling liquid tank buffer; 20. Bottom partition; 21. Fixed contact buffer; 22. Rod cavity buffer; 23. Moving rod contact buffer; 24. Conductive tube; 25. Electric energy recovery device; 26. Recycled battery. DETAILED DESCRIPTION

[0020] 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.

[0021] The purpose of the present invention is to provide a vibration energy recovery device to solve the problems existing in the above-mentioned prior art and to realize vibration power generation. It not only reasonably recycles and utilizes the vibration energy, but also reduces the vibration tendency between the two components, which is beneficial to ensure the smooth operation of the two components. In addition, in the present invention, the magnetic fluid flows in the spiral magnetic flux tube and cuts the magnetic flux lines to generate electrical energy. The flow path is longer, and the power generation capacity and the ability to alleviate vibration are stronger.

[0022] 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.

[0023] like Figure 1 to Figure 6As shown, a vibration energy recovery device includes a magnetic fluid tank 1, a moving rod 2, a mounting tube 3, a spiral magnetic flux tube 4 and an electric energy recovery mechanism, wherein the magnetic fluid tank 1 stores magnetic fluid; one end of the moving rod 2 extends into the interior of the magnetic fluid tank 1 and is fixedly connected to the piston 5, and the other end is located outside the magnetic fluid tank 1, and is used to connect one of the two components that generate relative displacement. The piston 5 includes a moving rod current limiting ring and a moving rod current limiting ring limiter, wherein the moving rod current limiting ring is in the shape of a wide and thick circular ring, and its main function is to isolate the magnetic fluid in a closed space; the moving rod current limiting ring limiter is installed on the top of the moving rod 2, and is in the shape of a cylindrical structure with a wider groove, the groove is located in the middle section of the cylinder, the top and bottom are rounded, and the moving rod current limiting ring is installed inside this groove. The piston 5 divides the internal cavity of the magnetic fluid tank 1 into a rod cavity and a rodless cavity, and the bottom end of the rodless cavity is used to connect to the other of the two components that generate relative displacement. The mounting tube 3 is fixed to the outside of the magnetic fluid warehouse 1, and has a mounting cavity inside. The mounting cavity is provided with a first magnetic pole 6 and a second magnetic pole 7 of opposite polarity, and there is a magnetic field in the gap between the first magnetic pole 6 and the second magnetic pole 7. The spiral magnetic flux tube 4 is located in the magnetic field between the first magnetic pole 6 and the second magnetic pole 7, and there is an angle between the extension direction of the spiral magnetic flux tube 4 and the direction of the magnetic field, and this angle is close to or equal to 90°. The two ends of the spiral magnetic flux tube 4 are respectively connected to the rod cavity and the rodless cavity. The electric energy recovery mechanism is connected to the spiral magnetic flux tube 4 to recover the electric energy generated by the flow of magnetic fluid in the radial magnetic field.

[0024] During use, the end of the moving rod 2 and the end of the magnetic fluid chamber 1 are respectively connected to two components that will produce relative position changes along the axial direction of the moving rod 2 when vibrating. When the relative position of the two components changes, for example, when the piston 5 moves upward in the magnetic fluid chamber 1, under the action of pressure, the magnetic fluid in the rod chamber flows into the rodless chamber through the spiral magnetic flow tube 4. If the piston 5 moves downward, the magnetic fluid flows from the rodless chamber into the rod chamber. Since the spiral magnetic flow tube 4 is located in the magnetic field between the first magnetic pole 6 and the second magnetic pole 7, the magnetic fluid can cut the magnetic flux lines when it flows spirally in the spiral magnetic flow tube 4, thereby generating an induced current, and the electric energy recovery mechanism collects and stores this induced current.

[0025] Therefore, this embodiment can convert the vibration energy between the two components that produce relative position changes into electrical energy for storage, thereby realizing vibration power generation. It not only reasonably recycles the vibration energy, but also reduces the vibration trend between the two components, which is beneficial to ensure the smooth operation of the two components. In addition, in this embodiment, the magnetic fluid flows in the spiral magnetic flux tube 4 and cuts the magnetic flux lines to generate electrical energy, and the flow path is longer. Compared with the structural form in which the magnetic fluid only flows axially and cuts the magnetic flux lines, the power generation capacity and the ability to alleviate vibration are stronger.

[0026] Regarding the installation method of the first magnetic pole 6 and the second magnetic pole 7, they can be installed at both ends of the mounting tube 3 in the axial direction to generate an axial magnetic field; or in order to increase the magnetic field strength, several pairs of first magnetic poles 6 and second magnetic poles 7 are arranged at intervals along the axial direction of the mounting tube 3, and the spiral magnetic flux tube 4 is divided into multiple sections and arranged between the corresponding first magnetic poles 6 and second magnetic poles 7. The preferred method in this embodiment is that two coaxial and mutually nested magnetic isolation sleeves 8 are arranged in the mounting tube 3, and the first magnetic pole 6 and the second magnetic pole 7 are respectively fixed on the two magnetic isolation sleeves 8, and the first magnetic pole 6 and the second magnetic pole 7 are arranged opposite to each other. The first magnetic pole 6 and the second magnetic pole 7 are both cylindrical, and there is a gap between the two to accommodate the spiral magnetic flux tube 4, and a radial magnetic field is formed in the gap. Compared with the magnetic field in the axial direction, the radial magnetic field space formed by the first magnetic pole 6 and the second magnetic pole 7 can be smaller, the magnetic field strength is higher and more uniform, which is more conducive to the generation of induced current in the magnetic fluid and improves the vibration energy recovery efficiency.

[0027] In order to improve the flow efficiency of the magnetic fluid under pressure, at least two spiral magnetic flow tubes 4 are arranged in the gap between the first magnetic pole 6 and the second magnetic pole 7 in this embodiment.

[0028] The magnetic fluid will generate heat in the process of cutting the magnetic flux lines by reciprocating flow under the pressure of the piston 5, which will gradually increase the temperature of the magnetic fluid warehouse 1. If the temperature is too high, it will have an adverse effect on the normal use of its internal components. Therefore, in this embodiment, the magnetic fluid warehouse 1, the mounting cylinder 3 and the magnetic isolation sleeve 8 are all made of heat-conducting materials, which is conducive to the heat dissipation of the magnetic fluid warehouse 1. Specifically, the magnetic fluid warehouse 1, the mounting cylinder 3 and the magnetic isolation sleeve 8 can all be made of copper or aluminum alloy.

[0029] In order to prevent the temperature of the magnetic fluid warehouse 1 in this embodiment from being too high, the rod cavity and the rodless cavity in this embodiment are both connected to the spiral magnetic flow tube 4 through the thermal expansion plug 9. The thermal expansion plug 9 is a tubular structure made of thermal expansion material, one end of which is connected to the magnetic fluid warehouse 1, and the other end is connected to the spiral magnetic flow tube 4. When the temperature of the magnetic fluid warehouse 1 rises to the deformation temperature of the thermal expansion plug 9, the thermal expansion plug 9 expands, and the flow channel inside the thermal expansion plug 9 that is connected to the spiral magnetic flow tube 4 becomes narrower, reducing the flow speed of the magnetic fluid, thereby reducing heat generation.

[0030] In order to further increase the volatilization speed of the heat of the magnetic fluid warehouse 1 and avoid heat accumulation, in this embodiment, the outer side of the top of the mounting cylinder 3 is also sleeved with a cooling liquid warehouse 11 that can slide along its axial direction. The cooling liquid warehouse 11 is made of heat-conducting material and is filled with cooling liquid. A middle partition 12 is fixed on the side wall of the mounting cylinder 3, and the middle partition 12 can be made of heat-insulating material. The middle partition 12 is slidably sealed with the inner wall of the cooling liquid warehouse 11, and the internal cavity of the cooling liquid warehouse 11 is divided into an upper cooling chamber and a lower cooling chamber, and the end of the moving rod 2 is fixedly connected to the top of the upper cooling chamber. When in use, the top of the cooling liquid warehouse 11 can be fixedly connected to one of the two components that produce relative position changes. A spiral circulation tube 10 is embedded in the top of the side wall of the mounting cylinder 3, and the two ends of the spiral circulation tube 10 are connected to the upper cooling chamber and the lower cooling chamber respectively. Under normal conditions (when the two components do not change relative positions), the pressure in the upper cooling chamber and the lower cooling chamber is the same. And the part of the magnetic fluid warehouse 1 located in the cooling liquid warehouse 11, the part of the installation tube 3 located in the cooling liquid warehouse 11, and most of the structure in the spiral circulation tube 10 are located in the cooling chamber. When the temperature of the magnetic fluid warehouse 1 increases, most of the heat can be transferred to the cooling liquid in the cooling chamber through the installation tube 3, and a small part of the heat can be transferred to the cooling liquid in the upper cooling chamber, and the cooling liquid is used to cool it. When the magnetic fluid warehouse 1 and the cooling liquid warehouse 11 produce relative movement, resulting in unequal pressures in the upper cooling chamber and the lower cooling chamber, the cooling liquid can flow between the upper cooling chamber and the lower cooling chamber through the spiral circulation tube 10, thereby strengthening the heat exchange between the upper cooling chamber and the lower cooling chamber.

[0031] Research has found that when the temperature of the magnetic fluid warehouse 1 is always at a low level, the power generation efficiency of the magnetic fluid will be reduced. When its temperature is maintained at an appropriate level, its power generation efficiency will be improved. In this embodiment, a middle partition 12 is set to isolate the upper cooling chamber and the lower cooling chamber, and the upper cooling chamber and the lower cooling chamber are not connected over a large area. This is to avoid the cooling liquid in the cooling liquid warehouse 11 from exchanging heat with the magnetic fluid warehouse 1 and the installation cylinder 3 at a fast speed, resulting in an overly obvious cooling effect, and to keep the magnetic fluid in a temperature range with a higher power generation efficiency as much as possible. In actual use, those skilled in the art can reasonably calculate the setting position of the middle partition 12 and the distributed axial length, flow rate and other parameters of the spiral circulation tube 10 based on the suitable power generation temperature, heating efficiency and cooling efficiency of the magnetic fluid; the specific parameters of each component are not described in detail in this embodiment.

[0032] like Figure 4~Figure 5As shown, in this embodiment, at least two one-way pressure buffers 13 are arranged on the middle partition 12, and the one-way pressure buffer 13 includes a pressure buffer body 14 and a top plate 15 connected to the end of the pressure buffer body 14 through a middle column; the pressure buffer body 14 is provided with a through hole 16 connecting the upper cooling chamber and the lower cooling chamber, and a cover plate and a compression spring 17 are arranged between the through hole 16 and the top plate 15, the cover plate is buckled at the through hole 16, and the two ends of the compression spring 17 are respectively connected to the cover plate and the top plate 15; there are at least two one-way pressure buffers 13 with different orientations. In the present embodiment, four one-way pressure buffers 13 are arranged, which are evenly distributed on the middle partition plate 12 along the circumferential direction, and the directions of two adjacent one-way pressure buffers 13 along the circumferential direction are different, so as to ensure that the cooling liquid in the upper cooling chamber and the lower cooling chamber can flow under certain conditions; that is, two of the one-way pressure buffers 13 only allow the cooling liquid to flow from the upper cooling chamber into the lower cooling chamber under certain conditions, and the other two one-way pressure buffers 13 only allow the cooling liquid to flow from the lower cooling chamber into the upper cooling chamber under certain conditions.

[0033] Specifically, when the magnetic fluid warehouse 1 and the cooling liquid warehouse 11 are subjected to pulling force, the magnetic fluid warehouse 1 and the middle partition 12 move downward, and the cooling liquid warehouse 11 moves upward, the magnetic fluid in the rod cavity enters the rodless cavity through the spiral magnetic flux tube 4, cuts the magnetic flux lines on the way in to generate induced current, and is recovered and stored by the electric energy recovery mechanism. After the magnetic fluid warehouse 1 and the middle partition 12 move downward, the volume of the upper cooling cavity increases and the volume of the lower cooling cavity decreases, causing the original pressure balance to be destroyed, the pressure in the upper cooling cavity decreases, and the cooling liquid in the lower cooling cavity flows into the upper cooling cavity through the spiral circulation tube 10. At the same time, the cooling liquid in the lower cooling cavity absorbs more heat, and the temperature rises significantly. With the outflow of the cooling liquid in the lower cooling cavity, the heat can be transferred to the upper cooling cavity, accelerating the cooling, and also reducing the pressure difference between the lower cooling cavity and the upper cooling cavity. When the pressure difference between the upper cooling chamber and the lower cooling chamber changes faster than the speed of relieving the pressure difference caused by the flow of the cooling liquid, the pressure difference between the upper cooling chamber and the lower cooling chamber will gradually increase. When it increases to a certain extent, the cooling liquid in the lower cooling chamber will overcome the elastic force of the compression spring 17 in the two one-way pressure relief members 13, push open the top plate 15, and make the cooling liquid in the lower cooling chamber flow into the upper cooling chamber through the through hole 16, balance the pressure of the two, and strengthen the heat exchange between the two. When the pressure difference between the upper cooling chamber and the lower cooling chamber decreases, the top plate 15 re-fastens on the through hole 16 under the action of the elastic force, preventing the cooling liquid from circulating. In addition, when the temperature of the magnetic fluid warehouse 1 rises to a certain extent, the thermal expansion bolt 9 expands due to heat, the channel for circulating the magnetic fluid becomes narrower, the flow rate of the magnetic fluid decreases, and the power generation efficiency and the heat generated are reduced. When the temperature of the magnetic fluid warehouse 1 decreases to an appropriate level, the thermal expansion bolt 9 contracts, the channel for circulating the magnetic fluid becomes wider, and the normal circulation of the magnetic fluid is restored.

[0034] When the magnetic fluid warehouse 1 and the cooling liquid warehouse 11 are subjected to pressure, the magnetic fluid warehouse 1 and the middle partition 12 move up, and the cooling liquid warehouse 11 moves down, the magnetic fluid in the rodless cavity enters the rod cavity through the spiral magnetic flux tube 4, cuts the magnetic flux lines on the way in, generates induced current, and is recovered and stored by the electric energy recovery mechanism. After the magnetic fluid warehouse 1 and the middle partition 12 move up, the volume of the upper cooling cavity becomes smaller, and the volume of the lower cooling cavity becomes larger, causing the original pressure balance to be destroyed, the pressure in the upper cooling cavity increases, and the cooling liquid in the upper cooling cavity flows into the lower cooling cavity through the spiral circulation tube 10. At the same time, the cooling liquid in the lower cooling cavity absorbs more heat, and the temperature rises significantly. With the inflow of the cooling liquid in the upper cooling cavity, the temperature of the cooling liquid in the lower cooling cavity can be reduced, and the pressure difference between the lower cooling cavity and the upper cooling cavity is also reduced. When the pressure difference between the upper cooling chamber and the lower cooling chamber changes faster than the speed of relieving the pressure difference caused by the flow of the cooling liquid, the pressure difference between the upper cooling chamber and the lower cooling chamber will gradually increase. When it increases to a certain extent, the cooling liquid in the lower cooling chamber will overcome the elastic force of the compression spring 17 in the two one-way pressure relief members 13, push open the top plate 15, and make the cooling liquid in the upper cooling chamber flow into the lower cooling chamber through the through hole 16, balance the pressure of the two, and strengthen the heat exchange between the two. When the pressure difference between the upper cooling chamber and the lower cooling chamber decreases, the top plate 15 re-fastens on the through hole 16 under the action of the elastic force, preventing the cooling liquid from circulating. In addition, when the temperature of the magnetic fluid warehouse 1 rises to a certain extent, the thermal expansion bolt 9 expands due to heat, the channel for circulating the magnetic fluid becomes narrower, the flow rate of the magnetic fluid decreases, and the power generation efficiency and the heat generated are reduced. When the temperature of the magnetic fluid warehouse 1 decreases to an appropriate level, the thermal expansion bolt 9 contracts, the channel for circulating the magnetic fluid becomes wider, and the normal circulation of the magnetic fluid is restored.

[0035] In this embodiment, a high-pressure gas sealing chamber 18 is provided between the bottom of the cooling liquid tank 11 and the mounting tube 3. Specifically, the bottom of the cooling liquid tank 11 is provided with two layers of structure from top to bottom, and is respectively connected to the outer wall of the mounting tube 3 by sliding sealing through an upper air pressure limiting ring and a lower air pressure limiting ring, and the space between the two layers of structure and the outer wall of the mounting tube 3 forms a high-pressure gas sealing chamber 18, which plays a role in preventing the cooling liquid from flowing out of the cooling liquid tank 11 and the external air from flowing into the cooling liquid tank 11.

[0036] A cooling liquid tank buffer 19 is provided between the top of the movable rod 2 and the cooling liquid tank 11, and the cooling liquid tank buffer 19 is fixed on the cooling liquid tank buffer 19 limiter. The cooling liquid tank buffer 19 is located at the top of the movable rod 2, and is in the shape of a flat cylinder with a groove, and the top is rounded. Its main function is to relieve the impact force and reduce the vibration when the magnetic fluid tank 1 moves up a lot; the cooling liquid tank buffer 19 limiter is located at the top of the movable rod 2, and is connected to the cooling liquid tank 11. It is in the shape of a convex hollow cylinder, and the convex part fits with the groove part of the cooling liquid tank buffer 19. Its main function is to fix the cooling liquid tank buffer 19 and keep the cooling liquid tank buffer 19 in position. A bottom partition 20 is spaced apart above the bottom plate of the rodless cavity, and a fixed contact buffer 21 is provided between the bottom partition 20 and the bottom plate of the rodless cavity. The fixed contact buffer 21 includes a first mounting portion fixed on the bottom partition 20, a first built-in spring, a first external spring and a first telescopic rod. The first mounting portion is mounted on the bottom partition 20, and the top end of the first telescopic rod is slidably arranged in a vertical cavity of the first mounting portion. The first built-in spring in the vertical cavity abuts against the top end of the first telescopic rod; the first external spring is sleeved on the first telescopic rod, the top end abuts against the first mounting portion, and the bottom end abuts against the bottom end of the first telescopic rod, so that the impact can be alleviated by the elastic force of the first built-in spring and the first external spring.

[0037] A rod cavity buffer 22 is also provided on the moving rod 2, and there is a gap between the rod cavity buffer 22 and the inner wall of the magnetic fluid warehouse 1. The rod cavity buffer 22 is located in the rod cavity and is installed on the rod cavity buffer 22 limiter. It is in the shape of a flat cylinder with a groove and a rounded top. It is used to relieve the impact force and reduce vibration when the moving rod 2 moves up a lot and collides with the top of the magnetic fluid warehouse 1; the rod cavity buffer 22 limiter is installed at the end of the moving rod 2, in the shape of a convex semi-hollow cylinder, and the convex part cooperates with the groove part of the rod cavity buffer 22, and its main function is to fix the rod cavity buffer 22 and keep the rod cavity buffer in position.

[0038] A moving rod contact buffer 23 is provided at the bottom of the piston 5, which is used to relieve vibration when the bottom end of the moving rod 2 collides with the bottom partition 20. It includes a second mounting portion, a second built-in spring, a second external spring and a second telescopic rod. The second mounting portion is fixed to the bottom end of the moving rod 2, and the top end of the second telescopic rod is slidably arranged in the vertical cavity of the second mounting portion. The second built-in spring in the vertical cavity abuts against the top end of the second telescopic rod; the second external spring is sleeved on the telescopic rod, the top end abuts against the second mounting portion, and the bottom end abuts against the limit plate on the bottom end of the second telescopic rod, so that the impact can be relieved by the elastic force of the second built-in spring and the second external spring.

[0039] In this embodiment, the electric energy recovery mechanism includes a current collecting film, a conductive tube 24, an electric energy recovery device 25 and a recovery battery 26. The current collecting film is coated on the outer surface of the spiral magnetic flow tube 4. The conductive tube 24 is located in the mounting tube 3, one end of which is connected to the current collecting film, and the other end is connected to the electric energy recovery device 25. The electric energy recovery device 25 stores electric energy in the recovery battery 26. The electric energy recovery device 25 and the recovery battery 26 are located at the top of the fixed tube and sealed and waterproofed. The collection equipment and collection principle of the induced current in the magnetic fluid are well known to those skilled in the art, and this embodiment will not be repeated.

[0040] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0041] 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 energy recovery device, characterized in that: include: A magnetic fluid warehouse, wherein magnetic fluid is stored inside the magnetic fluid warehouse; A moving rod, one end of which extends into the interior of the magnetic fluid chamber and is fixedly connected to the piston, and the other end of which is located outside the magnetic fluid chamber; the piston divides the internal cavity of the magnetic fluid chamber into a rod cavity and a rodless cavity; A mounting tube, the mounting tube is located outside the magnetic fluid compartment, a first magnetic pole and a second magnetic pole with opposite polarities are arranged in the mounting tube, and a magnetic field is formed between the first magnetic pole and the second magnetic pole; A spiral magnetic flux tube, wherein the spiral magnetic flux tube is located in the magnetic field between the first magnetic pole and the second magnetic pole, an angle is formed between an extension direction of the spiral magnetic flux tube and a direction of the magnetic field, and two ends of the spiral magnetic flux tube are respectively connected to the rod cavity and the rodless cavity; An electric energy recovery mechanism, wherein the electric energy collection end of the electric energy recovery mechanism is connected to the spiral magnetic flux tube, and is used to recover the electric energy generated by the flow of magnetic fluid in the radial magnetic field.

2. The vibration energy recovery device according to claim 1, characterized in that: Two coaxial and sleeved magnetic isolation sleeves are arranged in the installation cylinder, the first magnetic pole and the second magnetic pole are respectively fixed on the two magnetic isolation sleeves to form a radial magnetic field, and the spiral magnetic flow tube is arranged in the radial magnetic field.

3. The vibration energy recovery device according to claim 2, characterized in that: The rod cavity and the rodless cavity are both connected to the spiral magnetic flow tube through thermal expansion bolts.

4. The vibration energy recovery device according to claim 2, characterized in that: The magnetic fluid storehouse, the mounting cylinder and the magnetic isolation sleeve are all made of heat-conducting materials.

5. The vibration energy recovery device according to claim 4, characterized in that: The top outer side of the mounting tube is also sleeved with a cooling liquid bin which is slidable along its axial direction; a middle partition is fixed on the outer wall of the mounting tube; the middle partition is slidably and sealingly connected to the inner wall of the cooling liquid bin, dividing the internal cavity of the cooling liquid bin into an upper cooling cavity and a lower cooling cavity; the end of the moving rod is fixedly connected to the upper cooling cavity; a spiral circulation tube is embedded in the top of the side wall of the mounting tube, and the two ends of the spiral circulation tube are respectively connected to the upper cooling cavity and the lower cooling cavity.

6. The vibration energy recovery device according to claim 5, characterized in that: At least two one-way pressure buffers are arranged on the middle partition, and the one-way pressure buffer comprises a pressure buffer body and a top plate connected to the end of the pressure buffer body through a middle column; a through hole connecting the upper cooling chamber and the lower cooling chamber is arranged on the pressure buffer body, a cover plate and a compression spring are arranged between the through hole and the top plate, the cover plate is buckled at the through hole, and the two ends of the compression spring are respectively connected to the cover plate and the top plate; there are at least two one-way pressure buffers with different orientations.

7. The vibration energy recovery device according to claim 6, characterized in that: A high-pressure gas sealing chamber is arranged between the bottom of the cooling liquid chamber and the installation cylinder.

8. The vibration energy recovery device according to claim 6, characterized in that: A cooling liquid tank buffer is arranged between the top of the moving rod and the cooling liquid tank, a bottom partition is arranged above the bottom plate of the rodless cavity, and a moving rod contact buffer is arranged between the bottom partition and the bottom plate of the rodless cavity.

9. The vibration energy recovery device according to claim 1, characterized in that: A rod cavity buffer is also provided on the moving rod, and a gap is provided between the rod cavity buffer and the inner wall of the magnetic fluid chamber; a moving rod contact buffer is provided at the bottom of the piston.

10. The vibration energy recovery device according to claim 1, characterized in that: The electric energy recovery mechanism comprises a current collecting film, a conductive tube, an electric energy recovery device and a recovery battery, wherein the current collecting film is coated on the outer surface of the spiral magnetic flow tube, the conductive tube is located in the installation tube, one end of the conductive tube is connected to the current collecting film, and the other end of the conductive tube is connected to the electric energy recovery device; The electric energy recovery device stores electric energy in the recovery battery.

Images