CN205244233U - From energizing quantity formula vehicle magnetorheological damper device - Google Patents

Abstract

The utility model discloses a self-supplied energy type vehicle magneto-rheological damping device, which comprises a shock absorbing device body and a shock absorbing device controller. The shock absorbing device body includes a first cylinder body, a piston rod, a piezoelectric power generation unit, and a force transmission spring. unit, magnetorheological damping unit and electromagnetic induction unit; the piezoelectric generating unit includes a plurality of piezoelectric modules, and each piezoelectric module is embedded with a plurality of piezoelectric vibrators; the force transmission spring unit includes an upper spring pressing plate and a lower spring pressing plate , lower spring holder, upper spring holder and force transmission spring; the magneto-rheological damping unit includes outer cylinder, inner cylinder, lower sealing end cap, upper sealing end cap, permanent magnet protective cover, upper damping channel, lower damping channel, excitation coil and piston; the electromagnetic induction unit includes an anti-leakage magnetic sleeve, a second cylinder, multiple permanent magnets and an electromagnetic induction coil. The utility model has the advantages of compact structure, high energy feeding efficiency, high working stability and reliability, can make the vibration reduction in the best state, has strong practicability and broad application prospect.

Description

Magneto-rheological damping device for self-powered vehicles

technical field

The utility model belongs to the technical field of vehicle damping devices, in particular to a self-supplied energy type vehicle magneto-rheological damping device.

Background technique

Magnetorheological fluid is an ideal intelligent material, which can change from a well-flowing liquid to a viscous fluid in a short time under the action of a magnetic field. It has certain yield characteristics, and its yield strength increases with the increase of the magnetic field intensity. The magnetorheological damper manufactured by using this characteristic of magnetorheological fluid has the advantages of wide range of damping characteristics and easy control under the action of an external magnetic field. With a certain control strategy, the magnetorheological damper can become An ideal semi-active control damper with excellent performance, compared with the existing damper, can achieve the purpose of controlling the damping force by real-time controlling the current passed into the excitation coil.

Because the magnetorheological damper has the characteristics of fast response, large damping force, small energy demand, simple mechanism and good durability, it can still act as a passive control device even in the case of a control system failure, and has strong reliability and practicality. sex. It can be widely used in various vehicles, helicopters, fitness equipment, civil construction, long-span structures (frames, beams, bridges), etc., and the shear yield stress of magnetorheological fluid is 38% of the shear yield stress of electrorheological materials. ~50 times, in this way, the volume of the magneto-rheological device can be much smaller than that of the electro-rheological device, and it is not sensitive to the influence of impurities. However, it is still a semi-active control device, which needs to consume a part of energy, which limits the promotion of magnetorheological dampers. In order to solve this problem, someone proposed a self-powered magnetorheological damper. Although the structure is a bit simple, However, there are some defects such as slow response, poor reliability, high energy consumption, insufficient real-time damping force, and limited self-supply energy.

For example, the Chinese utility model patent with application number 201310471102.7 discloses a self-powered electromagnetic rheological damper. The self-powered damper mainly includes a cylinder, a positioning cylinder, a compensation unit, an air-core coil, and a permanent magnet. Inside the cylinder, the hollow coil is set in the lower cavity of the positioning cylinder, and the permanent magnet is set in the inner cavity of the hollow coil and fixed with the compensation unit. The reciprocating motion of the magnet in the inner cavity of the hollow coil converts mechanical energy into electrical energy, which is not only unstable but also unable to meet the energy demand of the damper itself. On the other hand, the magnetic field generated by the permanent magnet cutting the magnetic induction line has an interference effect on the magnetorheological fluid. At the same time, the magnetic field path passed by the flow type of the magnetorheological fluid designed by it is relatively short, which cannot better provide the effective magnetic field required for its function. For example, the Chinese utility model patent application with the application number 200910103744. The rheological damper, when the damper moves, the magnetorheological fluid scours the multiple blades to convert the linear motion into the rotation of the butterfly rotor, thereby changing the magnetic flux of the coil on the butterfly rotor, that is, the change of the magnetic field intensity, and realizing the mechanical energy direction. The conversion of electric energy, but the blades of this structure must be processed into a special shape, which is complicated to process. At the same time, due to the environment, the size of the centrifugal force is limited, resulting in a limited blade speed and low energy conversion efficiency. The demand for the required electric energy, the utilization rate of the magnetic field generated by its excitation coil is limited.

Utility model content

The technical problem to be solved by the utility model is to provide a self-supplied energy type vehicle magneto-rheological damping device, which has a compact structure, novel and reasonable design, convenient implementation, high energy feeding efficiency and stable operation. The utility model has the advantages of high reliability and high vibration reduction, strong practicability, broad application prospect and convenient popularization and use.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a self-powered vehicle magneto-rheological damping device, which is characterized in that it includes a first cylinder and a piston rod passing through the first cylinder from bottom to top , and piezoelectric generating unit, force transmission spring unit, magnetorheological damping unit and electromagnetic induction unit;

The piezoelectric generating unit includes a plurality of piezoelectric modules arranged at the bottom of the first cylinder and bonded to each other by double-sided adhesive thin iron plates, each of the piezoelectric modules is embedded with a plurality of piezoelectric vibrators; The piezoelectric module at the bottom is bonded to the inner bottom wall of the first cylinder through a double-sided adhesive thin iron plate;

The force transmission spring unit includes an upper spring pressing plate and a lower spring pressing plate arranged at intervals in the upper part of the first cylinder, and the bottom surface of the lower spring pressing plate is bonded to the topmost piezoelectric module through a double-sided viscous thin iron plate, The top of the lower spring pressing plate is fixedly connected with the lower spring holder, the bottom of the upper spring pressing plate is fixedly connected with the upper spring holder, and a force transmission spring is arranged between the upper spring holder and the lower spring holder. The upper end of the force transmission spring is fixedly connected with the upper spring holder, and the lower end of the force transmission spring is fixedly connected with the lower spring holder;

The magneto-rheological damping unit includes an outer cylinder fixedly connected to the top of the upper spring pressure plate and an inner cylinder sleeved inside the outer cylinder, the lower end of the outer cylinder, the upper spring pressure plate and the upper spring holder are passed through a first sliding The bearing is slidingly connected to the middle part of the piston rod, and the lower part of the outer cylinder is provided with an energy storage buffer partition and a lower sealing end cover fixedly connected to the top of the energy storage buffer partition, and the energy storage buffer partition is connected with the inner part of the outer cylinder. The space between the bottom walls is the energy storage buffer chamber, the energy storage buffer partition and the lower sealing end cover are slidingly connected to the middle part of the piston rod through the second sliding bearing, and the inner upper part of the outer cylinder is provided with a The upper sealing end cover fixedly connected to the top wall, the top of the outer cylinder is fixedly connected with a permanent magnet protective cover covering the outer cylinder, the upper end of the outer cylinder, the upper end of the permanent magnet protective cover and the upper sealing end cover pass through The third sliding bearing is slidingly connected to the upper part of the piston rod. The cavity between the upper sealing end cover and the lower sealing end cover in the outer cylinder is a magnetorheological damping cavity filled with magnetorheological fluid. The inner cylinder The barrel divides the magnetorheological damping chamber into an outer magnetorheological damping chamber located between the outer wall of the inner cylinder and the inner wall of the outer cylinder and an inner magnetorheological damper located between the inner wall of the inner cylinder and the piston rod. cavity, an upper damping passage is provided between the top of the inner cylinder and the bottom of the upper sealing end cap, a lower damping passage is provided between the bottom of the inner cylinder and the top of the lower sealing end cap, and the top outer wall of the inner cylinder Excitation coils are wound on the upper and lower outer walls, and the upper part of the piston rod is fixedly connected with a piston located in the inner magneto-rheological damping chamber;

The electromagnetic induction unit includes an anti-leakage magnetic sleeve fitted on the outside of the outer cylinder close to the outer wall of the outer cylinder and a second cylinder fixedly connected to the top of the first cylinder, and the second cylinder is covered by the permanent magnet protection cover Inside, there is a gap between the outer wall of the anti-leakage magnetic sleeve and the inner wall of the second cylinder, and a plurality of permanent magnets are arranged at intervals on the inner wall of the second cylinder, and the outer wall of the anti-leakage magnetic sleeve is wound There is an electromagnetic induction coil;

The bottom of the piston rod is fixedly connected with a lower suspension ring, the top of the permanent magnet protective cover is fixedly connected with a support base, and the top of the support base is fixedly connected with an upper suspension ring.

The above self-supplied energy vehicle magneto-rheological damping device is characterized in that: the axial center of the piston rod is provided with a piston rod center hole, and the lower part of the piston rod is opened with a piston rod passage connected with the piston rod center hole. Wire holes; the upper end of the permanent magnet protective cover is provided with a first protective cover wire hole and a second protective cover wire hole.

The above self-powered vehicle magneto-rheological damping device is characterized in that: the inner diameter of the second cylinder is larger than the inner diameter of the first cylinder.

The aforementioned self-powered vehicle magneto-rheological damping device is characterized in that: the number of the piezoelectric modules is three, the shape of the piezoelectric modules is cylindrical, and each of the piezoelectric modules is embedded with ten The two piezoelectric vibrators and the twelve piezoelectric vibrators are divided into two groups and arranged uniformly in a ring with the geometric center of the piezoelectric module as the center.

The above self-powered vehicle magneto-rheological damping device is characterized in that: the thickness of the double-sided viscous thin iron plate is 0.15mm-0.5mm.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has the advantages of compact structure, novel and reasonable design, convenient realization and low cost, high electric energy generation, real-time change of damping force within a considerable range, and high energy conversion rate.

2. The piezoelectric module of the utility model has a novel arrangement form, and at the same time, it is combined with a double-sided viscous thin iron plate, so that the structure is more compact and the electric energy generated is more.

3. The electromagnetic induction coil of the electromagnetic induction unit of the utility model is wound on the outer wall of the anti-leakage magnetic sleeve, and the permanent magnet is arranged on the inner wall of the second cylinder body. The magnetic field interferes with the magnetic field generated by the field coil.

4. The design of the upper damping channel and the lower damping channel of the utility model is ingenious, which can make the magnetic field utilization rate of the magneto-rheological fluid flowing through the magneto-rheological damping unit higher, thereby generating greater damping force, To achieve the purpose of real-time vibration reduction.

5. The utility model adopts the piezoelectric generating unit and the electromagnetic induction unit to jointly generate electric energy to realize the function of feeding energy, which can generate enough electric energy to supply the magnetorheological damping unit. The new model can always work in the energy feeding mode, and can transfer the excess electric energy generated to the vehicle battery for storage, which not only saves energy consumption, but also can be used in case of emergency.

6. The utility model has high working reliability and stability. Even if the piezoelectric generating unit and the electromagnetic induction unit for energy feeding fail, they can be used as a general damper without deteriorating the working conditions.

7. The utility model can make the semi-active suspension in the best damping state, and can better highlight the active control effect of the magneto-rheological damper in the working process.

8. The utility model has strong practicability and good use effect, and can meet the current purpose of achieving better vibration reduction and generating sufficient power consumption when feeding energy. It has broad application prospects and is convenient for popularization and use.

To sum up, the utility model has the advantages of compact structure, novel and reasonable design, convenient realization, high energy feeding efficiency, high working stability and reliability, and can make vibration reduction in the best state. It has strong practicability and broad application prospects. , which is convenient for promotion and use.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a sectional view along A-A of Fig. 1 .

Fig. 3 is a B-B sectional view of Fig. 1 .

Explanation of reference signs:

1—lower ring; 2—first cylinder; 3—magnetorheological fluid;

4—piezoelectric module; 5—double-sided adhesive thin iron plate; 6—piezoelectric vibrator;

7—lower damping channel; 8—second cylinder; 9—permanent magnet;

10—electromagnetic induction coil; 11—permanent magnet protective cover; 12—leakage-proof magnetic sleeve;

14—outer cylinder; 15—support seat; 16—first protective cover wire hole;

17—the wire hole of the second protective cover; 18—the wire hole of the piston rod;

19—hanging ring; 20—third sliding bearing; 21—upper sealing end cover;

22—upper damping channel; 23—excitation coil; 24—inner magnetorheological damping cavity;

25—external magnetorheological damping cavity; 26—piston; 27—inner cylinder;

30—second sliding bearing; 31—lower sealing end cover; 32—energy storage buffer partition;

33—energy storage buffer cavity; 34—first sliding bearing; 35—upper spring pressure plate;

36—upper spring holder; 37—force transmission spring; 38—lower spring holder;

39—lower spring pressing plate; 40—piston rod; 41—piston rod central hole.

detailed description

As shown in Fig. 1, Fig. 2 and Fig. 3, the magneto-rheological damping device for self-powered vehicles of the present utility model includes a first cylinder body 2 and a piston rod 40 passing through the first cylinder body 2 from bottom to top, and Piezoelectric generating unit, force transmission spring unit, magnetorheological damping unit and electromagnetic induction unit;

The piezoelectric generating unit includes a plurality of piezoelectric modules 4 arranged at the bottom of the first cylinder 2 and bonded alternately by double-sided adhesive thin iron plates 5, each of the piezoelectric modules 4 is embedded with a plurality of Piezoelectric vibrator 6; the piezoelectric module 4 at the bottom is bonded to the inner bottom wall of the first cylinder body 2 through a double-sided adhesive thin iron plate 5; during specific implementation, the double-sided adhesive thin iron plate 5 is The upper surface and the lower surface of the thin iron plate are made by applying structural glue;

The force transmission spring unit includes an upper spring pressing plate 35 and a lower spring pressing plate 39 arranged at intervals on the upper part of the first cylinder body 2, and the bottom surface of the lower spring pressing plate 39 is connected with the pressing plate located on the top layer through the double-sided viscous thin iron plate 5. The electric module 4 is bonded, the top of the lower spring pressing plate 39 is fixedly connected with the lower spring holder 38, the bottom of the upper spring pressing plate 35 is fixedly connected with the upper spring holder 36, and the upper spring holder 36 is connected with the lower spring holder. A force transmission spring 37 is arranged between the decks 38, the upper end of the force transmission spring 37 is fixedly connected with the upper spring deck 36, and the lower end of the force transmission spring 37 is fixedly connected with the lower spring deck 38;

The magnetorheological damping unit includes an outer cylinder 14 fixedly connected to the top of the upper spring pressure plate 35 and an inner cylinder 27 set inside the outer cylinder 14, the lower end of the outer cylinder 14, the upper spring pressure plate 35 and the upper spring The card seat 36 is slidably connected to the middle part of the piston rod 40 through the first sliding bearing 34, and the inner lower part of the outer cylinder 14 is provided with an energy storage buffer partition 32 and a lower sealing end cover 31 fixedly connected to the top of the energy storage buffer partition 32 The space between the energy storage buffer partition 32 and the inner bottom wall of the outer cylinder 14 is the energy storage buffer cavity 33, and the energy storage buffer partition 32 and the lower sealing end cover 31 are slidingly connected by the second sliding bearing 30 In the middle part of the piston rod 40, the upper inner part of the outer cylinder 14 is provided with an upper sealing end cap 21 fixedly connected with the inner top wall of the outer cylinder 14, and the top of the outer cylinder 14 is fixedly connected with a cover on the outside of the outer cylinder 14. The permanent magnet protective cover 11, the upper end of the outer cylinder 14, the upper end of the permanent magnet protective cover 11 and the upper sealing end cover 21 are slidably connected to the upper part of the piston rod 40 through the third sliding bearing 20, and the outer cylinder 14 is located The cavity between the upper sealing end cap 21 and the lower sealing end cap 31 is a magnetorheological damping chamber filled with magnetorheological fluid 3, and the inner cylinder 27 separates the magnetorheological damping chamber into The outer magnetorheological damping chamber 25 between the outer wall of the barrel 27 and the inner wall of the outer cylinder 14 and the inner magnetorheological damping chamber 24 between the inner wall of the inner cylinder 27 and the piston rod 40, the inner cylinder 27 An upper damping channel 22 is provided between the top and the bottom of the upper sealing end cover 21, and a lower damping channel 7 is provided between the bottom of the inner cylinder 27 and the top of the lower sealing end cover 31, and the top outer wall of the inner cylinder 27 The excitation coil 23 is wound on the outer wall of the bottom and the bottom, and the upper part of the piston rod 40 is fixedly connected with a piston 26 located in the inner magneto-rheological damping cavity 24;

The electromagnetic induction unit includes a leakage-proof magnetic sleeve 12 that is fitted on the outside of the outer cylinder 14 close to the outer wall of the outer cylinder 14 and a second cylinder 8 that is fixedly connected to the top of the first cylinder 2. The second cylinder 8 Covered in the permanent magnet protective cover 11, a gap is provided between the outer wall of the anti-leakage magnetic sleeve 12 and the inner wall of the second cylinder 8, and a plurality of permanent magnets 9 are arranged at intervals on the inner wall of the second cylinder 8 , the outer wall of the anti-leakage magnetic sleeve 12 is wound with an electromagnetic induction coil 10; during specific implementation, the anti-leakage magnetic sleeve 12 is made of non-magnetic material, and the anti-leakage magnetic sleeve 12 is used to avoid The magnetic field generated by the coil 10 interferes with the magnetic field generated by the excitation coil 23;

The bottom of the piston rod 40 is fixedly connected with the lower suspension ring 1 , the top of the permanent magnet protection cover 11 is fixedly connected with the support base 15 , and the top of the support base 15 is fixedly connected with the upper suspension ring 19 .

As shown in Figures 1 and 2, in this embodiment, the axial center of the piston rod 40 is provided with a piston rod center hole 41, and the lower part of the piston rod 40 is provided with a piston rod communicating with the piston rod center hole 41. Rod wire passing hole 18; the upper end of the permanent magnet protective cover 11 is provided with a first protective cover wire passing hole 16 and a second protective cover wire passing hole 17 .

As shown in FIG. 1 , in this embodiment, the inner diameter of the second cylinder 8 is larger than the inner diameter of the first cylinder 2 .

As shown in Figures 1 and 3, in this embodiment, the number of the piezoelectric modules 4 is three, the shape of the piezoelectric modules 4 is cylindrical, and each of the piezoelectric modules 4 is embedded with Twelve piezoelectric vibrators 6 are divided into two groups and arranged uniformly in a ring with the geometric center of the piezoelectric module 4 as the center.

In this embodiment, the thickness of the double-sided adhesive thin iron plate 5 is 0.15mm-0.5mm.

The working process of the utility model is: when the vehicle is driving on an uneven road surface, the upper suspension ring 19 and the lower suspension ring 1 produce relative motion, and the movement of the upper suspension ring 19 drives the support seat 15 to move together, thereby driving the magnetorheological damping module to move, At this time, the upper and lower volumes of the inner magnetorheological damping chamber 24 change. When the magnetorheological damping module moves downward, the lower volume of the inner magnetorheological damping chamber 24 decreases, and the upper volume increases, and the magnetorheological fluid 3 flows from the inner magnetorheological damping chamber 24 to the outer magnetorheological damping chamber 25 through the lower damping channel 7 and the upper damping channel 22, when the magnetorheological damping module moves upward, the inner magnetorheological damping chamber 24 The lower volume increases and the upper volume decreases, and the magnetorheological fluid 3 flows from the outer magnetorheological damping chamber 25 through the upper damping passage 22 and the lower damping passage 7 into the inner magnetorheological damping chamber 24 to damp the vehicle The device generates damping force; on the one hand, when the magneto-rheological damping module moves, it drives the electromagnetic induction coil 10 to move relative to the permanent magnet 9, cuts the magnetic induction line to generate electric energy and rectifies it through an external rectifier, and then passes through the battery charging circuit. The on-board battery is charged, and the output electric energy of the on-board battery is then supplied to the excitation coil 23; on the other hand, when the magnetorheological damping module moves, it drives the upper spring pressing plate 35 and the upper spring holder 36 to move, and further realizes vibration reduction through the force transmission spring 37 , and transmit the force to the lower spring pressure plate 39 and the lower spring holder 38, and then act on the piezoelectric module 4, so that the piezoelectric vibrator 6 has a positive piezoelectric effect, generates electric energy and is rectified by an external rectifier, and then charged by the battery The circuit charges the on-board battery, and the output power of the on-board battery is supplied to the excitation coil 23; the current input to the excitation coil 23 is controlled by an external controller, so that the magneto-rheological damping device of the vehicle can be adjusted to make it in the best vibration reduction state.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (5)

1. a confession energy type vehicle magnetorheological damping device, is characterized in that: comprise the first cylinder body (2) and wear from top to bottomCross the piston rod (40) of the first cylinder body (2), and piezo-electric generating unit, power transmission spring unit, magnetorheological damping unit and electromagnetismSensing unit;

Described piezo-electric generating unit comprises and is arranged on the first cylinder body (2) inner bottom part and alternate sticky by biadhesive sheet iron (5)The multiple piezo electric module (4) that connect, are all inlaid with multiple piezoelectric vibrators (6) in each described piezo electric module (4); Be positioned at the bottomPiezo electric module (4) is bonding with the interior diapire of the first cylinder body (2) by biadhesive sheet iron (5);

Described power transmission spring unit comprises the upper spring pressing plate (35) and the lower spring pressure that are disposed on the first cylinder body (2) internal upper partPlate (39), the underrun biadhesive sheet iron (5) of described lower spring pressing plate (39) and the piezo electric module (4) that is positioned at top layerBonding, the top of described lower spring pressing plate (39) is fixedly connected with lower spring deck (38), the end of described upper spring pressing plate (35)Portion is fixedly connected with upper spring deck (36), between described upper spring deck (36) and lower spring deck (38), is provided with power transmission bulletSpring (37), the upper end of described power transmission spring (37) is fixedly connected with upper spring deck (36), the lower end of described power transmission spring (37)Be fixedly connected with lower spring deck (38);

Outside described magnetorheological damping unit comprises and is fixedly connected on the outer cylinder (14) at upper spring pressing plate (35) top and is sleeved onThe inner cylinder tube (27) that cylinder barrel (14) is inner, lower end, upper spring pressing plate (35) and the upper spring deck (36) of described outer cylinder (14)Be slidably connected at piston rod (40) middle part by the first sliding bearing (34), it is slow that the interior bottom of described outer cylinder (14) is provided with accumulation of energyRush dividing plate (32) and be fixedly connected on the lower seal end cap (31) at energy-storage buffering dividing plate (32) top, described energy-storage buffering dividing plate(32) space and between the interior diapire of outer cylinder (14) is energy-storage buffering chamber (33), described energy-storage buffering dividing plate (32) and lower sealEnd cap (31) is slidably connected at piston rod (40) middle part, described outer cylinder (14) internal upper part setting by the second sliding bearing (30)Have the upper end cover (21) being fixedly connected with outer cylinder (14) inner roof wall, described outer cylinder (14) top is fixedly connected with and covers onThe permanent magnet protective cover (11) that outer cylinder (14) is outside, the upper end of described outer cylinder (14), the upper end of permanent magnet protective cover (11)Be slidably connected at piston rod (40) top with upper end cover (21) by the 3rd sliding bearing (20), in described outer cylinder (14)The cavity being positioned between end cover (21) and lower seal end cap (31) is the magnetorheological damping that is filled with magnetic flow liquid (3)Chamber, described inner cylinder tube (27) separates described magnetorheological damping chamber in order to be positioned at the outer wall of inner cylinder tube (27) and outer cylinder (14)Outer magnetorheological damping chamber (25) between inwall and be positioned at the inwall of inner cylinder tube (27) and piston rod (40) between magnetorheologicalDamping cavity (24), is provided with damp channel (22), institute between described inner cylinder tube (27) top and upper end cover (21) bottomState between inner cylinder tube (27) bottom and lower seal end cap (31) top and be provided with lower damp channel (7), described inner cylinder tube (27)In top exterior walls He in bottom outer wall, be all wound with magnet exciting coil (23), described piston rod (40) top is fixedly connected with and is positioned atPiston (26) in magnetorheological damping chamber (24);

Described electromagnetic induction unit comprises that the outer wall of being close to outer cylinder (14) is sleeved on the outside leakproof magnetosheath of outer cylinder (14)(12) and be fixedly connected on second cylinder body (8) at the first cylinder body (2) top, described the second cylinder body (8) covers on permanent magnet protective cover(11), in, between the outer wall of described leakproof magnetosheath (12) and the inwall of the second cylinder body (8), be provided with gap, described the second cylinder body(8) on inwall, be arranged at intervals with multiple permanent magnets (9), on the outer wall of described leakproof magnetosheath (12), be wound with electromagnetic induction coil(10)；

The bottom of described piston rod (40) is fixedly connected with lower lift ring (1), the fixing company of top of described permanent magnet protective cover (11)Be connected to supporting seat (15), the top of described supporting seat (15) is fixedly connected with upper lift ring (19).

2. according to confession energy type vehicle magnetorheological damping device claimed in claim 1, it is characterized in that: described piston rod(40) axial centre is provided with piston rod centre bore (41), and the bottom of described piston rod (40) has and piston rod centre bore(41) the piston rod cable-through hole (18) being connected; Described permanent magnet protective cover (11) upper end has the first protective cover cable-through hole (16)With the second protective cover cable-through hole (17).

3. according to confession energy type vehicle magnetorheological damping device claimed in claim 1, it is characterized in that: described the second cylinder body(8) internal diameter is greater than the internal diameter of the first cylinder body (2).

4. according to confession energy type vehicle magnetorheological damping device claimed in claim 1, it is characterized in that: described piezo electric module(4) quantity is three, and being shaped as of described piezo electric module (4) is cylindrical, in each described piezo electric module (4), is all inlaid with tenTwo piezoelectric vibrators (6), after 12 piezoelectric vibrators (6) points two groups taking the geometric center of piezo electric module (4) as the center of circle ringwiseEvenly lay.

5. according to confession energy type vehicle magnetorheological damping device claimed in claim 1, it is characterized in that: described biadhesiveThe thickness of sheet iron (5) is 0.15mm～0.5mm.