Dual mode shock energy conversion damper

Abstract

The application discloses a double-mode shock-absorbing energy conversion shock absorber, and solves the problems of easy generation of large noise and poor shock-absorbing effect of the existing shock absorber during use, through setting electromagnetic conversion devices and hydraulic conversion devices on the shock absorber. The structure of the electromagnetic conversion device comprises coils and a plurality of permanent magnets arranged on a cylinder body and a piston respectively and capable of interacting with each other; the structure of the hydraulic conversion device comprises a connecting seat fixed on the other end of the cylinder body, and the other hanger ring is fixed on the connecting seat; the connecting seat extends to the outside of the cylinder body, and a hydraulic motor is connected to the extending part of the connecting seat; the hydraulic motor is communicated with the upper cavity and the lower cavity through two sets of oil paths respectively; when the piston moves axially in the cylinder body, the shock absorber oil is pushed to realize the one-way rotation of the hydraulic motor through the two sets of oil paths.

Description

TECHNICAL FIELD

[0001] The present application relates to a shock absorber arranged on a vehicle, in particular a shock absorber arranged on a motorcycle, which can realize conversion of shock absorbing energy. BACKGROUND

[0002] With the increasingly serious urban traffic congestion problem and the continuous growth of personalized traffic demand, motorcycles still play an important role in the global market, especially in developing countries, urban and rural commuting and urban logistics, due to their flexible maneuverability, good passability and lower use cost. Its stock quantity shows a long-term growth trend, and has become an important part of the transportation system that cannot be ignored. Compared with traditional four-wheeled vehicles, motorcycles have compact body structure, light weight and narrow wheelbase, so they are more easily affected by road unevenness, sudden impact or continuous bumping during driving. Frequent and intense vibration not only affects the driving comfort, but also threatens the vehicle handling and driving safety. The performance of the shock absorbing system plays a decisive role in the dynamic quality of the whole vehicle.

[0003] Traditional motorcycles generally use hydraulic type damping shock absorbers. The working principle is that the piston moves inside the cylinder to drive the shock absorber oil through the throttle hole on the piston combined with the structure of the valve plate to realize viscous damping to consume the vibration energy of the motorcycle during operation. This type of device has mature structure, rapid response and controllable cost, so it has been widely used for a long time. However, this type of hydraulic shock absorber has a fundamental defect: the mechanical energy generated during vibration is all dissipated in the form of heat energy and cannot be recycled. For new models such as electric motorcycles with limited energy, this means that the kinetic energy that could have been recycled is wasted, neither supplementing the energy management system nor improving the overall energy utilization efficiency of the vehicle. In addition, the shock absorber with this structure is prone to high temperature of the shock absorber oil, which reduces the viscosity and changes the performance parameters of the shock absorber during the movement of the piston. On the other hand, it is also easy to emit sharp noise when the shock absorber works.

[0004] In summary, the existing motorcycle shock absorbing system still has obvious technical gaps in the integration of vibration suppression and energy recovery functions. On the one hand, a single form of energy recovery mechanism cannot balance compactness and efficiency; on the other hand, although complex solutions have high energy conversion potential, they are difficult to achieve engineering feasibility in the motorcycle scenario. Therefore, there is an urgent need for a new, compact and efficient, high-structure-integration energy regeneration shock absorber technology that can integrate electromagnetic and hydraulic energy recovery paths, maximize the recovery of shock absorbing energy while meeting the motorcycle use space, mass and environmental condition constraints, and achieve the optimization of vehicle energy efficiency and the technical support of sustainable development goals. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a dual-mode shock-absorbing energy conversion shock absorber that can well adapt to the conversion of shock-absorbing energy.

[0006] To solve the technical problem, the technical solution of the present application is a dual-mode shock-absorbing energy conversion shock absorber, which comprises a damper and a spring sleeved on the outer periphery of the damper and jointly serving as a shock absorber. The damper comprises a cylinder and a piston coaxially arranged together. The piston divides the inside of the cylinder into an upper cavity and a lower cavity. A piston rod coaxially connected with the piston extends to the outside of one end of the cylinder. An eye ring is fixed to the outer end of the piston rod. Another eye ring is arranged on the other end side of the cylinder. The shock absorber further comprises:

[0007] An electromagnetic conversion device comprising a coil and a plurality of permanent magnets arranged on the cylinder and the piston, respectively, and capable of interacting with each other.

[0008] A hydraulic conversion device comprising a coupling seat fixed to the other end of the cylinder, and the other eye ring fixed to the coupling seat. The coupling seat extends to the outside of the cylinder. A hydraulic motor is connected to the extended part of the coupling seat. The hydraulic motor is connected to the upper cavity and the lower cavity through two sets of oil paths, respectively. When the piston moves axially in the cylinder, it pushes the shock absorber oil through the two sets of oil paths to realize the one-way rotation of the hydraulic motor.

[0009] The electromagnetic conversion device realizes the conversion of mechanical energy into electrical energy during the shock-absorbing process. An external resistor can be connected to the coil to consume the mechanical energy generated during the shock-absorbing process, or a step-up and wave cutting circuit can be used to supply power to the charging interface of the vehicle-mounted battery. During the shock-absorbing process, the shock absorber oil can drive the hydraulic motor to idle to consume the hydraulic energy generated during the shock-absorbing process. An electromagnetic conversion device can be arranged at the hydraulic motor to generate electricity, and a step-up circuit can be used to supply power to the charging interface of the vehicle-mounted battery. The oil path connected to the lower cavity can be arranged on the outside of the cylinder, or it can pass through the piston rod as described below. However, in general, the oil path connected to the upper cavity generally passes through the inside of the coupling seat.

[0010] Further, the permanent magnets are arranged on the piston, and the coil is arranged on the outer periphery of the cylinder. This makes the arrangement convenient, and the sealing requirement of the permanent magnets for the shock absorber oil is low.

[0011] Further, the piston is of a split structure, and an annular mounting groove is formed on the outer periphery of the piston. A plurality of permanent magnets are arranged side by side in the mounting groove. The permanent magnets can be annular or semi-annular and arranged in opposition. By arranging the piston in a split structure, it is also convenient to fix the permanent magnets.

[0012] Further, the piston comprises a hollow fixing column and at least one fixing body, the fixing column is sleeved on the piston rod, the fixing body is fixed on the piston rod, and the fixing column is fixed on the fixing body. The piston rod is fixed by the fixing column and the fixing body, the structure is simple, and the permanent magnet can be well installed and fixed.

[0013] Further, the fixing body is two, the fixing body is in the shape of "convex", the two fixing bodies are symmetrically arranged, the two ends of the fixing column are sleeved on the convex heads of the fixing bodies, and the mounting grooves are formed between the fixing bodies and the fixing column. The fixing nut can be arranged at the two ends of the piston respectively, so that the permanent magnet is clamped and connected. The two fixing bodies are used for fixing the fixing column, the structure is simple, and a stable piston can be formed.

[0014] Further, the coupling seat is blocky, and the two sets of oil channels pass through the coupling seat, so that the structure of the shock absorber is compact.

[0015] Further, one of the two sets of oil channels directly leads to the upper cavity; an oil inlet hole communicating with the lower cavity is arranged at the position of the lower cavity part on the piston rod, an oil passage hole communicating with the oil inlet hole is arranged in the piston rod in the axial direction, a hose is arranged in the upper cavity, and the two ends of the hose are connected with the oil passage hole and the coupling seat respectively, and the other set of oil channels passes through the oil inlet hole, the oil passage hole and the hose. The structure of the shock absorber is simple, and the requirements of double-mode shock absorbing energy conversion can be well met.

[0016] Further, a plurality of one-way check valves are arranged in the extension part of the coupling seat, the one-way check valves are arranged in the two sets of oil channels, so that the shock absorber oil in the upper cavity and the lower cavity respectively flows from the shock absorber oil input end of the hydraulic motor under the pushing of the piston. Through the arrangement of the one-way check valve, when the shock absorber works, the shock absorber oil can enter and exit from the fixed position of the hydraulic motor, so that the shock absorbing energy can be accumulated and superimposed on the hydraulic motor in the same direction through the shock absorber oil, and the hydraulic motor is continuously pushed to rotate.

[0017] Further, the one-way check valve comprises two groups, the two groups of one-way check valves are connected in parallel between the two sets of oil channels; one group of one-way check valves is used for cutting off the flow of the shock absorber oil in the same direction, and the other group of one-way check valves is used for cutting off the flow of the shock absorber oil in the opposite direction; the group of one-way check valves for cutting off the flow of the shock absorber oil in the opposite direction leads to the shock absorber oil input end of the hydraulic motor, and the group of one-way check valves for cutting off the flow of the shock absorber oil in the same direction leads to the shock absorber oil output end of the hydraulic motor. The arrangement of the two groups of one-way check valves can well control the flow direction of the shock absorber oil, and meet the conversion requirements of the hydraulic motor for the kinetic energy of the shock absorber oil.

[0018] Further, the coupling seat is provided with a mounting pit, a reversing block is arranged in the mounting pit, and the one-way stop valve is arranged in the reversing block; two through holes are arranged on the side surface of the reversing block and correspond to the positions of the two sets of oil paths, and the shock absorber oil in the two sets of oil paths respectively enters and exits the reversing block from the corresponding through holes. By arranging the reversing block, the one-way stop valve can be well installed, so that the structure is compact and convenient to assemble.

[0019] The shock absorber has the advantages that: in the shock absorber, the permanent magnet and the coil are arranged to adapt to the movement of the piston, so that the mechanical energy generated by the piston during the movement is converted into electrical energy; and the piston pushes the shock absorber oil, so that the shock absorber oil is converted by the hydraulic motor.

[0020] In the shock absorber, the double-mode energy conversion can well combine the actual working conditions of the shock absorber, fully convert the damping energy, and meet the basic functions of the shock absorber, so that some energy can be converted and absorbed, and the environmental protection concept of “green traffic” can be well combined. The mechanical energy generated by the piston during the movement of the motorcycle is fully utilized, the magnetic-flow double-path energy conversion is realized, the overall energy recovery efficiency is improved, and the energy acquisition capacity per unit stroke is significantly enhanced compared with the traditional single-mode recovery device.

[0021] By the double-mode energy conversion mode, the structure of the piston and the oil hole valve plate is not needed, so that the noise generated by the shock absorber during the working process is small. The shock absorber has the advantages of compact structure and convenient installation on vehicles with limited installation space such as motorcycles.

[0022] The hydraulic energy recovery subsystem adopts a four-group embedded one-way stop valve structure, can automatically guide the oil flow, so that the rotation direction of the hydraulic motor is always consistent no matter the piston moves in the compression or rebound stroke, thereby avoiding the reversing control problem in the energy recovery process and improving the system stability and reliability.

[0023] The electromagnetic coil, the permanent magnet assembly, the hydraulic circuit and the oil path control mechanism are integrated in a single shock absorber cylinder structure, without additional external auxiliary equipment, meet the strict requirements of the motorcycle suspension system on volume, mass and installation convenience, have good system compactness and engineering realizability.

[0024] The oil path control valve, the permanent magnet assembly and the spring pre-tightening structure are modularly designed, are convenient to manufacture, assemble and maintain, and can be adjusted according to the vehicle type (such as spring stiffness, electromagnetic coil specification, hydraulic motor displacement, etc.), have good adaptability and expansibility. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of the shock absorber.

[0026] Figure 2 is Figure 1 an exploded view.

[0027] Figure 3 is a longitudinal sectional view of the present shock absorber.

[0028] Figure 4 is a side view of the reversing block.

[0029] Figure 5 is Figure 4 a sectional view along the direction A-A in the

[0030] Figure 6 is Figure 4 a sectional view along the direction B-B in the

[0031] Figure 7 is a partial enlarged view showing the polarity arrangement of the permanent magnet.

[0032] Figure 8 is a structural diagram of the communication mode of four one-way stop valves, and the arrow shows the flow direction of the shock absorber oil when the piston moves in one direction.

[0033] Figure 9 is a structural diagram of the communication mode of four one-way stop valves, and the arrow shows the flow direction of the shock absorber oil when the piston moves in the other direction.

[0034] In the figure, 1, lifting ring; 2, connecting seat; 3, hydraulic motor; 4, spring; 5, reversing block; 51, mounting hole; 52, thrust spring; 53, oil passage; 54, steel ball; 6, coil; 7, piston rod; 71, oil inlet hole; 72, oil passage hole; 8, permanent magnet; 9, fixed column; 10, adjusting nut; 11, cylinder; 12, hose; 13, fixing nut; 14, electromagnetic isolation cover; 15, locking nut; 16, fixed body. DETAILED DESCRIPTION

[0035] With the proposal of concepts such as "green transportation", "energy recovery", and "carbon neutralization", energy recovery technology in transportation tools has become a research hotspot. The shock absorber in the present application is based on linear electromagnetic induction and shock absorber oil pushing for energy conversion and regeneration. It converts the vibration energy in the process of motorcycle driving into the relative linear motion between the permanent magnet 8 and the coil 6, thereby outputting electric energy externally under the action of electromagnetic induction. Such devices are usually composed of permanent magnets 8 and fixed coils 6, and have the advantages of relatively simple structure, direct output form, and easy control. However, the space of the motorcycle body is limited, the suspension stroke is short, and the mass constraint is strict, so the problems of power generation efficiency, volume, and structural integration need to be considered.

[0036] In addition to the electromagnetic method, the shock absorber also explores the energy recovery method under the hydraulic path. The principle is to introduce a hydraulic motor 3 or a hydraulic power generation module in the shock absorber, which can guide the shock absorber oil driven by the vibration energy to the power generation unit for secondary conversion. This method is theoretically compatible with the original hydraulic structure and does not need to set up too complex structure.

[0037] In the structural design of the electromagnetic system, the arrangement of the permanent magnet 8 needs to be considered to improve the magnetic flux utilization rate, achieve uniform magnetic flux density distribution, and reduce magnetic leakage to ensure the conversion efficiency of the electromagnetic energy recovery system. The Halbach array, as an asymmetric arrangement of permanent magnets 8, can form a single-sided enhanced magnetic field through phase control, significantly improve the magnetic flux density of the induction area, and suppress magnetic leakage, which is expected to improve the power density and efficiency level of the linear electromagnetic energy recovery system under limited structural size. Figure 7 The Halbach array arrangement of the permanent magnet 8 is shown in the figure, the polarity direction of one permanent magnet 8 is formed in the radial direction of the cylinder 11, and the polarity direction of the adjacent upper and lower two permanent magnets 8 is formed in the axial direction of the cylinder 11.

[0038] In combination with the drawings, the structure of the dual-mode shock absorption energy conversion shock absorber includes a damper that plays a common role in shock absorption and a spring 4 sleeved on the outer periphery of the damper. The structure of the damper includes a cylinder 11 and a piston coaxially arranged together, the piston separates the cylinder 11 into an upper chamber and a lower chamber, and the upper chamber and the lower chamber in the cylinder 11 are filled with shock absorber oil. The piston rod 7 coaxially connected with the piston extends to the outside of one end of the cylinder 11, and a lifting ring 1 is fixed to the outer end of the piston rod 7. The other end of the cylinder 11 is provided with another lifting ring 1. In a common shock absorber, the two ends of the spring 4 are respectively abutted on the two lifting rings 1. However, as shown in the figure, a adjusting nut 10 is threadedly connected to the outer peripheral surface of the other end of the cylinder 11, and a locking nut 15 is arranged on the outer side of the adjusting nut 10. One end of the spring 4 is abutted on the inner end surface of the adjusting nut 10, and the compression amount of the spring 4 can be adjusted by rotating the adjusting nut 10, thereby adjusting the hardness of the shock absorber.

[0039] To realize the conversion of shock absorption energy, the electromagnetic conversion device and the hydraulic conversion device are arranged on the shock absorber. The electromagnetic conversion device converts the shock absorption energy into electric energy through electromagnetic form; the hydraulic conversion device realizes partial conversion of shock absorption energy by driving the hydraulic motor 3 to rotate by the shock absorber oil.

[0040] The structure of the electromagnetic conversion device includes a coil 6 and a plurality of permanent magnets 8 arranged on the cylinder 11 and the piston, respectively, which can interact with each other. Here, the interaction refers to the fact that the coil 6 and the permanent magnet 8 generally overlap in the axial direction of the cylinder 11, and when they move relative to each other in the axial direction, the coil 6 will cut the magnetic lines of force to generate electric energy.

[0041] The structure of the hydraulic conversion device comprises a coupling seat 2 fixed on the other end of the cylinder 11, and the other lifting ring 1 is fixed on the coupling seat 2. The coupling seat 2 extends outwardly from the cylinder 11, and a hydraulic motor 3 is connected to the extending part of the coupling seat 2. The hydraulic motor 3 is connected to the upper chamber and the lower chamber through two sets of oil paths respectively. The coupling seat 2 is block-shaped, and the two sets of oil paths pass through the coupling seat 2. When the piston moves axially in the cylinder 11, it pushes the shock absorber oil to rotate the hydraulic motor 3 through the two sets of oil paths. Under normal circumstances, the shock absorber oil pushes the hydraulic motor 3 to rotate in one direction when the piston pushes the shock absorber oil by setting a one-way check valve on the two sets of oil paths.

[0042] The piston is of split structure, and an annular mounting groove is formed on the outer circumferential surface of the piston. A plurality of permanent magnets 8 are mounted in the mounting groove. The permanent magnets 8 are generally annular, and the plurality of permanent magnets 8 are arranged side by side in the mounting groove. The coil 6 is wound on the outer circumference of the cylinder 11, and a cylindrical electromagnetic isolation cover 14 is connected to the outer circumference of the coil 6. The electromagnetic isolation cover 14 is made of metal. The piston comprises a hollow fixing column 9 and at least one fixing body 16. The fixing column 9 is sleeved on the piston rod 7, the fixing body 16 is fixed on the piston rod 7, and the fixing column 9 is fixed on the fixing body 16. The fixing body 16 is in the shape of a "nail", and the two fixing bodies 16 are symmetrically arranged. The two ends of the fixing column 9 are sleeved on the heads of the fixing bodies 16, and the mounting groove is formed between the fixing body 16 and the fixing column 9. A fixing nut 13 is arranged at each end of the piston, and the fixing nut 13 is threadedly connected to the piston rod 7. The two fixing nuts 13 axially position the two fixing bodies 16, thereby forming a stable piston structure. The outer circumferential surface of the fixing body 16 is liquid-tightly sealed with the inner circumferential surface of the cylinder 11. In theory, the shock absorber oil cannot enter the position of the permanent magnets 8.

[0043] Two oil ports are arranged on the end face of the coupling seat 2 facing the cylinder 11, and the two oil ports are arranged within the radial range of the cylinder 11. One of the two sets of oil paths directly communicates with the upper chamber through one of the oil ports. An oil inlet hole 71 is arranged on the piston rod 7 at the position of the lower chamber and communicates with the lower chamber. The oil inlet hole 71 is arranged along the radial direction of the piston rod 7 and penetrates the piston rod 7. An oil passage hole 72 is arranged in the piston rod 7 along the axial direction and communicates with the oil inlet hole 71. A hose 12 is arranged in the upper chamber, and the two ends of the hose 12 are connected to the oil passage hole 72 and the other oil port of the coupling seat 2 respectively. The other set of oil paths passes through the oil inlet hole 71, the oil passage hole 72 and the hose 12. The hose 12 is generally made of soft rubber, which can well adapt to the axial movement of the piston while ensuring the passage of the shock absorber oil.

[0044] The unidirectional stop valve is provided in the extension of the coupling seat 2, and is arranged in two sets of oil paths, so that the shock absorber oil in the upper chamber and the lower chamber respectively flows from the shock absorber oil input end of the hydraulic motor 3 under the pushing of the piston, that is, no matter which direction the piston moves, the flow direction of the shock absorber oil in the hydraulic motor 3 is the same. The structure of the unidirectional stop valve includes a steel ball 54, a thrust spring 52 and a locking stud, a conical surface or a spherical surface is arranged at the position of the steel ball 54 on the oil path, the thrust spring 52 is fixed on the steel ball 54 through the locking of the locking stud, and the steel ball 54 is in contact with the conical surface or the spherical surface, so that the flow direction of the shock absorber oil is positively conducted and reversely stopped. The unidirectional stop valve includes two groups, and each group includes two unidirectional stop valves. The two groups of unidirectional stop valves are connected in parallel between the two sets of oil paths, one group of unidirectional stop valves stops the flow of the shock absorber oil in the same direction, and the other group of unidirectional stop valves stops the flow of the shock absorber oil in the opposite direction. The group of unidirectional stop valves that stop the flow of the shock absorber oil in the opposite direction is connected to the shock absorber oil input end of the hydraulic motor 3, and the unidirectional stop valves that stop the flow of the shock absorber oil in the same direction are connected to the shock absorber oil output end of the hydraulic motor 3.

[0045] Figure 8 、 9 The flow directions of the shock absorber oil through the unidirectional stop valves are shown in FIGS. 1 and 2. For the convenience of description, four unidirectional stop valves are distinguished by a, b, c and d in the figures, wherein the unidirectional stop valves a and b are a group, and the two unidirectional stop valves a and b stop the flow of the shock absorber oil in the opposite direction; the unidirectional stop valves c and d are a group, and the two unidirectional stop valves c and d stop the flow of the shock absorber oil in the same direction. The "same direction" and "opposite direction" are based on the middle positions of the two unidirectional stop valves in a group, and the flow directions of the shock absorber oil of the two unidirectional stop valves are both directed to the middle positions, which are called the same direction, and the flow directions of the shock absorber oil of the two unidirectional stop valves are both away from the middle positions, which are called the opposite direction. In the two figures, the left oil path is connected to the lower chamber in the cylinder body 11, and the right oil path is connected to the upper chamber in the cylinder body 11. Referring to Figure 8 When the piston moves towards the upper chamber of the cylinder body 11, the shock absorber oil in the upper chamber enters the right oil path, the unidirectional stop valve b is conducted, the unidirectional stop valves a and d stop the flow of the shock absorber oil, the shock absorber oil enters the hydraulic motor 3 to push the rotor to rotate, the shock absorber oil from the hydraulic motor 3 enters the lower chamber of the cylinder body 11 through the left oil path, at this time, the unidirectional stop valve c is in the conducting state, and the shock absorber oil on the left side of the unidirectional stop valve d is absorbed by the energy of the hydraulic motor 3, and the pressure is relatively small, the shock absorber oil on the right side of the unidirectional stop valve d is relatively high pressure, and the pressure difference between the two sides makes the unidirectional stop valve d stop the flow of the shock absorber oil. Referring to Figure 9When the piston moves towards the lower cavity of the cylinder 11, the damper oil in the lower cavity enters the hydraulic motor 3 through the left oil path, at this time the one-way check valve a is in the open state, the one-way check valves b and c cut off the damper oil, at this time the one-way check valve d is in the open state, the damper oil which has completed energy conversion in the hydraulic motor 3 enters the upper cavity of the cylinder 11 through the right oil path through the one-way check valve d. Thus, the partial damping energy is continuously converted by the hydraulic motor 3.

[0046] The extension of the coupling seat 2 is provided with a cylindrical mounting pit, and the opening part of the mounting pit faces the cylinder 11. A cylindrical reversing block 5 is embedded in the mounting pit, and the one-way check valve is arranged in the reversing block 5. Figure 4 、 5 , 6, four mounting holes 51 with relatively large inner diameters are arranged on the side surface of the reversing block 5, and each mounting hole 51 is provided with a set of steel balls 54, a thrust spring 52 and a locking stud (not shown in the figure). The inner end surface of the mounting hole 51 is a conical surface or a hemispherical surface, and the steel balls 54 are in contact with the inner end surface of the mounting hole 51 under the action of the locking stud and the thrust spring 52. The elastic force of the thrust spring 52 is relatively small, and only plays a supporting and resetting role. The elastic force of the thrust spring 52 can be easily overcome by the damper oil. To realize the one-way check action, the steel balls 54 are generally pressed against the inner end surface of the mounting hole 51 by the pushing of the damper oil. The four mounting holes 51 are connected in communication through the oil channels 53 arranged in the reversing block 5, and the inner diameter of the oil channels 53 is smaller than the inner diameter of the mounting holes 51. The oil channels 53 are multiple, some of which are arranged in the axial direction of the reversing block 5, and some of which are arranged in the direction perpendicular to the axis of the reversing block 5. In order to realize the flow direction of the damper oil shown in Figure 8 、 9 , the port of the oil channel 53 on the end surface of the reversing block 5 is closed by a plug. Two through holes are arranged on the side surface of the reversing block 5 corresponding to the positions of the two sets of oil paths, and the damper oil in the two sets of oil paths enters and exits the reversing block 5 through the corresponding through holes respectively.

Claims

1. A dual-mode vibration damping energy conversion damper, comprising a damper that jointly performs vibration damping and a spring sleeved around the outer periphery of the damper, the damper comprising a cylinder and a piston coaxially arranged together, the piston dividing the interior of the cylinder into an upper chamber and a lower chamber, a piston rod coaxially connected to the piston extending to the outer side of one end of the cylinder, a lifting ring fixed to the outer end of the piston rod, and another lifting ring provided at the other end of the cylinder, characterized in that, Further comprising: An electromagnetic conversion device, including coils and a plurality of permanent magnets respectively arranged on the cylinder body and the piston and capable of interacting with each other; A hydraulic conversion device, including a connecting seat fixedly connected to the other end of the cylinder body, and another lifting ring fixedly connected to the connecting seat; the connecting seat extends outward from the cylinder body, and a hydraulic motor is connected to the extended part of the connecting seat; the hydraulic motor is respectively communicated with the upper cavity and the lower cavity through two sets of oil circuits; when the piston axially moves in the cylinder body, it will push the shock absorber oil through the two sets of oil circuits to realize the one-way rotation of the hydraulic motor; The piston is of a split structure, and an annular installation groove is formed on the outer peripheral surface of the piston, and a plurality of permanent magnets are arranged side by side in the installation groove; the piston includes a hollow fixed column and at least one fixed body, the fixed column is sleeved on the piston rod, the fixed body is fixedly connected to the piston rod, and the fixed column is fixedly connected to the fixed body; There are two fixed bodies, the fixed bodies are "convex" shaped, the two fixed bodies are symmetrically arranged, and both ends of the fixed column are sleeved on the convex heads of the fixed bodies, and the installation groove is formed between the fixed body and the fixed column; The connecting seat is in a block shape, and both sets of oil circuits pass through the connecting seat; in the two sets of oil circuits, one set of oil circuits directly leads to the upper cavity; an oil inlet hole communicated with the lower cavity is provided on the piston rod at the position of the lower cavity, and an oil through hole communicated with the oil inlet hole is provided axially in the piston rod, a hose is provided in the upper cavity, and both ends of the hose are respectively communicated and connected with the oil through hole and the connecting seat, and the other set of oil circuits passes through the oil inlet hole, the oil through hole and the hose; 2. The dual-mode shock absorption energy conversion shock absorber according to claim 1, characterized in that, The permanent magnets are arranged on the piston, and the coils are arranged on the outer periphery of the cylinder body; 3. The dual-mode vibration damping energy conversion damper according to claim 1 or 2, characterized in that, A plurality of one-way check valves are provided in the extended part of the connecting seat, and the one-way check valves are arranged in the two sets of oil circuits, so that the shock absorber oil in the upper cavity and the lower cavity respectively flows through the hydraulic motor from the shock absorber oil input end of the hydraulic motor under the push of the piston; 4. The dual-mode shock absorption energy conversion shock absorber according to claim 3, characterized in that, The one-way check valves include two groups, and the two groups of one-way check valves are connected in parallel between the two sets of oil circuits; one group of one-way check valves截止 the flow of the shock absorber oil in the same direction, and the other group of one-way check valves截止 the flow of the shock absorber oil in the reverse direction; the group of one-way check valves that截止 the flow of the shock absorber oil in the reverse direction leads to the shock absorber oil input end of the hydraulic motor, and the group of one-way check valves that截止 the flow of the shock absorber oil in the same direction leads to the shock absorber oil output end of the hydraulic motor; 5. The dual-mode damping energy conversion damper according to claim 4, characterized in that, An installation pit is provided in the connecting seat, a commutation block is provided in the installation pit, and the one-way check valves are provided in the commutation block; two through holes are provided on the side surface of the commutation block corresponding to the positions of the two sets of oil circuits, and the shock absorber oil in the two sets of oil circuits respectively enters and exits the commutation block from the corresponding through holes;

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