CN116877623B - Shock absorber with adjustable ground clearance - Google Patents

Shock absorber with adjustable ground clearance Download PDF

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Publication number
CN116877623B
CN116877623B CN202310849626.9A CN202310849626A CN116877623B CN 116877623 B CN116877623 B CN 116877623B CN 202310849626 A CN202310849626 A CN 202310849626A CN 116877623 B CN116877623 B CN 116877623B
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CN
China
Prior art keywords
cylinder
wall
ring
piston rod
pressure
Prior art date
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Active
Application number
CN202310849626.9A
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Chinese (zh)
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CN116877623A (en
Inventor
孟令民
任朋成
王帅帅
郑加彬
孙良伟
施猛
曾庆华
时尚科
徐鑫
王乐宁
徐淑金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linyi Tianyi Shock Absorber Co ltd
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Linyi Tianyi Shock Absorber Co ltd
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Priority to CN202310849626.9A priority Critical patent/CN116877623B/en
Publication of CN116877623A publication Critical patent/CN116877623A/en
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Publication of CN116877623B publication Critical patent/CN116877623B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/53Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535Magnetorheological [MR] fluid dampers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00Materials; Material properties
    • F16F2224/04Fluids
    • F16F2224/045Fluids magnetorheological
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/0047Measuring, indicating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/08Sensor arrangement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/18Control arrangements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention discloses a vibration damper with an adjustable ground clearance, which relates to the technical field of automobile vibration dampers and comprises a first elastic retainer ring, wherein a multi-contact type height sensor is arranged at the top of the first elastic retainer ring, the multi-contact type height sensor comprises a wire harness, a chuck is sleeved on an outer surface fixing sleeve of the wire harness, a circuit board is mounted at the bottom of the chuck, a central processing unit is mounted on the front surface of the circuit board, a plurality of capacitors are mounted on the front surface of the circuit board, two energizing coils are mounted on the back surface of the circuit board, and a plurality of contact bodies are mounted on the front surface of the circuit board in an equidistant distribution mode.

Description

Shock absorber with adjustable ground clearance
Technical Field
The invention relates to the technical field of automobile shock absorbers, in particular to a shock absorber with an adjustable ground clearance.
Background
When the existing off-road vehicle is switched to a motion mode and passes through a bumpy road surface, a ground clearance is lifted to pass through a plurality of larger ditches. However, when the vehicle is driven on a flat road surface such as a city and the like to be switched to an economic mode, the air resistance can be better reduced by the smaller ground clearance from the viewpoint of hydrodynamics, and the ground grabbing force of the vehicle is increased. The ground clearance of the existing domestic and foreign off-road vehicle manufacturing enterprises is preset when the vehicles leave the factory, and cannot be adjusted when the vehicle is used, so that the ground clearance of the vehicles in a movement mode and an economic mode can be considered, the trafficability of the vehicles can be ensured, the fuel consumption of the vehicles can be reduced to the maximum extent, and the vehicle is an important parameter for designing and purchasing the shock absorber of the automobile manufacturing enterprises.
However, the shock absorber is used as an important component of an automobile suspension system to determine the size of an automobile ground clearance, and the main function of the shock absorber is to convert the energy of impact and vibration into the potential energy of the spring through the deformation of the spring. The spring can not store energy, the spring can rebound and restore the original shape to release the energy, and the spring rebound has instantaneity, so that damping is required to be arranged for inhibiting the vibration of the spring during rebound after shock absorption, driving comfort and stability of a vehicle are improved, and the using effect of the shock absorber is improved.
Therefore, a new shock absorber with adjustable ground clearance is needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a shock absorber with an adjustable ground clearance, which can lift the ground clearance of a chassis of a vehicle by adjusting the length of the shock absorber according to the actual condition of a road when the vehicle is switched to a motion mode, so that the vehicle can cross a larger ditch. When the vehicle is switched to the economic mode, the length of the shock absorber is dynamically adjusted in real time through information data collected and processed by the ECU, the ground clearance is intelligently adjusted, the air resistance is reduced, and the problem that the shock absorber is poor in use effect is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the shock absorber comprises a first circlip, wherein the top of the first circlip is provided with a multi-contact type height sensor;
the multi-contact type height sensor comprises a wire harness, a chuck is sleeved on an outer surface fixing sleeve of the wire harness, a circuit board is installed at the bottom of the chuck, a central processing unit is installed on the front face of the circuit board, a plurality of capacitors are installed on the front face of the circuit board, two electrifying coils are installed on the back face of the circuit board, a plurality of contact bodies are distributed on the front face of the circuit board at equal intervals, two electrifying coils are electrically connected with the central processing unit, and the wire harness is electrically connected with the central processing unit.
Preferably, the inside of first circlip is provided with the motion subassembly, the motion subassembly includes magnet, embedded formula skeleton has been inlayed to the outer wall of magnet, embedded formula skeleton's inside is provided with first stoneley and seals, embedded formula skeleton's inside intermediate position installs first slide bearing.
Preferably, a first O-shaped ring is arranged at a groove on the outer surface of the embedded framework, a first framework oil seal is arranged at a position, close to the bottom, of the inner part of the embedded framework, and the inner wall of the magnet is in contact with the position, close to the bottom, of the outer surface of the embedded framework.
Preferably, the outer surface of the first elastic retainer ring is provided with a pressure-bearing cylinder, the outer surface of the first O-shaped ring is in contact with the inner wall of the pressure-bearing cylinder, the outer surface of the embedded type framework is in contact with the inner wall of the pressure-bearing cylinder, a hydraulic cylinder is installed at the top opening of the pressure-bearing cylinder, the outer wall of the embedded type framework is close to the top and is in contact with the inner wall of the hydraulic cylinder, a fixing seat is installed at the top opening of the hydraulic cylinder, and a hydraulic oil pipe is installed at the input end of the fixing seat.
Preferably, the surface groove of fixing base is provided with the second O type circle, the surface of second O type circle contacts with the inner wall of pneumatic cylinder, the bolt is installed to the top opening part of fixing base, the top activity of bolt has the magnetic coil, the one end bottom of one end activity running through bolt of pencil, the inner wall of fixing base is provided with the third O type circle, the outer wall groove of fixing base is provided with the second circlip.
Preferably, the inner wall of the outer surface hydraulic cylinder of second circlip contacts, be provided with the slip subassembly between the outer wall of inner wall and the pneumatic cylinder of pressure-bearing cylinder, the slip subassembly includes steel lip skeleton, the inside of steel lip skeleton is close to the top position and is provided with the second stoneley and seals, second slide bearing is installed to the inside intermediate position of steel lip skeleton, the outer wall recess department of steel lip skeleton is provided with the fourth O type circle, the surface of fourth O type circle contacts with the inner wall of pressure-bearing cylinder.
Preferably, the inside of steel lip skeleton is close to the bottom position and is provided with the second skeleton oil blanket, the inside of pneumatic cylinder is provided with the holding ring, a plurality of bayonet sockets and a hydraulic pressure hydraulic fluid port have been seted up on the holding ring, the inside of fixing base is provided with the piston rod, the one end threaded connection of bolt is in the open-top department of piston rod, the piston rod activity cup joints in the inside of pneumatic cylinder, the inside of first slide bearing is installed with the surface of piston rod mutually, the spring holder is installed to the bottom opening part of embedded skeleton.
Preferably, the bottom of pressure-bearing jar is in the top recess department of spring holder, the spring body is installed to the downside of spring holder, the piston rod all is in the inside of spring holder and the inside of spring body, the inside of spring body is provided with the oil storage jar, the bottom of piston rod is in the inside of oil storage jar, the hole of placing has been seted up at the top of piston rod, magnet coil and pencil all are in the inside of placing the hole, two recess departments that the surface of piston rod is close to the bottom position all are provided with the third circlip.
Preferably, the inside of reservoir is provided with the director, the piston rod activity cup joints in the inside of director, the inside of reservoir is fixed with the working cylinder, the bottom of director is in the top opening part of working cylinder, the inside of working cylinder is provided with the magnet wire loop, the magnet wire loop includes the upper gland, the disk seat is installed to the bottom of upper gland, the inside of disk seat is provided with the magnetism isolation ring, the lower gland is installed to the bottom of disk seat.
Preferably, a plurality of smooth through holes are uniformly distributed at the top of the upper gland, the top of the magnetism isolation ring and the top of the lower gland, the bottom ends of the magnetic coils are movably sleeved in the upper gland, the two third circlips and the magnetism isolation ring respectively, the spring disc is installed on the outer wall of the oil storage cylinder, a fourth circlip is arranged at the groove of the inner wall of the spring disc and is positioned on the outer wall of the oil storage cylinder, the bottom valve is installed at the bottom of the inner wall of the oil storage cylinder, and the lifting ring is installed at the bottom of the bottom valve.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can transmit the detected position signal to the vehicle-mounted electronic control unit connected with the other end of the wire harness through the arranged multi-contact type height sensor, then analyze and process the received signal data through the vehicle-mounted electronic control unit, and then control corresponding equipment to perform corresponding action operation through the execution unit on the vehicle, namely the invention can realize that the length of the shock absorber can be adjusted by the intelligent body and the ground clearance can be intelligently adjusted when the vehicle is switched to the economic mode.
2. According to the invention, the sliding component and the moving component are arranged, so that a high-pressure airtight movable structure can be better formed, the operability and the safety of the adjustment of the ground clearance of the shock absorber are ensured, the interference of the piston rod on the magnetic field force can be reduced under the matched use of the piston rod, the magnetism isolating ring and the annular magnet, and the requirement of the use strength of the piston rod is perfectly solved.
3. The invention can change the speed of the magnetorheological fluid flowing into and out of the magnetic wire ring through the unblocked hole by arranging the magnetic wire ring structure, and simultaneously can convert the energy of impact and vibration into the potential energy of the spring body by changing the deformation of the spring body by arranging the spring body, and the damage of the spring resilience force to the vehicle can be reduced by adopting the conical structure design.
Drawings
FIG. 1 is a perspective view of a shock absorber with adjustable ground clearance according to the present invention;
FIG. 2 is a cross-sectional perspective view of an adjustable ground clearance shock absorber of the present invention;
FIG. 3 is a schematic perspective view of a multi-contact type height sensor of a shock absorber with adjustable ground clearance according to the present invention;
FIG. 4 is a schematic perspective view of a sliding assembly of a shock absorber with adjustable ground clearance according to the present invention;
FIG. 5 is a schematic perspective view of a supporting ring of a shock absorber with adjustable ground clearance according to the present invention;
FIG. 6 is a schematic perspective view of a magnet wire ring of an adjustable shock absorber with ground clearance according to the present invention;
fig. 7 is a schematic perspective view of a moving assembly of a shock absorber with adjustable ground clearance according to the present invention.
In the figure: 1. a first circlip; 2. a motion assembly; 201. a magnet; 202. a first stoneley seal; 203. a first sliding bearing; 204. a first O-ring; 205. a buried skeleton; 206. a first framework oil seal; 3. a hydraulic oil pipe; 4. a second O-ring; 5. a fixing seat; 6. A magnetic coil; 7. a multi-contact height sensor; 701. a wire harness; 702. a chuck; 703. a central processing unit; 704. a capacitor; 705. a circuit board; 706. a power-on coil; 707. a contact body; 8. a bolt; 9. a third O-ring; 10. the second elastic retainer ring; 11. a sliding assembly; 1101. a second stoneley seal; 1102. a steel lip skeleton; 1103. a second sliding bearing; 1104. a fourth O-ring; 1105. a second framework oil seal; 12. placing the hole; 13. a support ring; 1301. a bayonet; 1302. a hydraulic oil port; 14. a hydraulic cylinder; 15. a pressure-bearing cylinder; 16. a spring seat; 17. a piston rod; 18. a spring body; 19. a guide; 20. an oil storage cylinder; 21. a working cylinder; 22. a third circlip; 23. a magnet wire loop; 2301. a gland is arranged; 2302. a clear through hole; 2303. a magnetism isolating ring; 2304. a valve seat; 2305. a lower gland; 24. a spring plate; 25. a fourth circlip; 26. a bottom valve; 27. and (5) hanging rings.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a ground clearance adjustable shock absorber, including first circlip 1, the top of first circlip 1 is provided with multi-contact type height sensor 7, multi-contact type height sensor 7 includes pencil 701, the surface mounting cover of pencil 701 has cup jointed chuck 702, circuit board 705 is installed to the bottom of chuck 702, central processing unit 703 is installed in the front of circuit board 705, a plurality of electric capacities 704 are installed in the front of circuit board 705, two power-on coils 706 are installed to the back of circuit board 705, a plurality of contact bodies 707 are installed to the positive equidistance distribution of circuit board 705, two power-on coils 706 are connected with central processing unit 703 electricity, pencil 701 and central processing unit 703 electric connection.
According to fig. 2 and 7, the first circlip 1 is internally provided with a moving assembly 2, the moving assembly 2 includes a magnet 201, an embedded skeleton 205 is embedded on the outer wall of the magnet 201, a first stirling seal 202 is arranged in the embedded skeleton 205, and a first sliding bearing 203 is installed in the middle of the embedded skeleton 205, so that a supporting and guiding function can be provided for the piston rod 17 under the action of the first sliding bearing 203.
According to the embodiment shown in fig. 7, a first O-ring 204 is disposed at a groove on the outer surface of the embedded skeleton 205, a first skeleton oil seal 206 is disposed at a position near the bottom inside the embedded skeleton 205, and the inner wall of the magnet 201 contacts with the position near the bottom of the outer surface of the embedded skeleton 205, so that the current on the magnetic coil 6 can be conveniently adjusted under the cooperation of the magnet 201 and the energizing coil 706.
According to the figures 1, 2 and 7, the outer surface of the first circlip 1 is provided with a pressure-bearing cylinder 15, the outer surface of the first O-ring 204 is in contact with the inner wall of the pressure-bearing cylinder 15, the outer surface of the embedded skeleton 205 is in contact with the inner wall of the pressure-bearing cylinder 15, the hydraulic cylinder 14 is installed at the top opening of the pressure-bearing cylinder 15, the outer wall of the embedded skeleton 205 is close to the top and is in contact with the inner wall of the hydraulic cylinder 14, the fixed seat 5 is installed at the top opening of the hydraulic cylinder 14, the input end of the fixed seat 5 is provided with a hydraulic oil pipe 3, and hydraulic oil can be guided into a gap between the inside of the hydraulic cylinder 14 and the outer wall of the piston rod 17 and a gap between the inner wall of the pressure-bearing cylinder 15 and the outer wall of the hydraulic cylinder 14 under the action of the hydraulic oil pipe 3.
According to the embodiment shown in fig. 1-3 and fig. 6, the groove on the outer surface of the fixing seat 5 is provided with the second O-ring 4, the outer surface of the second O-ring 4 contacts with the inner wall of the hydraulic cylinder 14, the top opening of the fixing seat 5 is provided with the bolt 8, the top of the bolt 8 is movably provided with the magnetic coil 6, one end of the wire harness 701 movably penetrates through the bottom of one end of the bolt 8, the inner wall of the fixing seat 5 is provided with the third O-ring 9, the groove on the outer wall of the fixing seat 5 is provided with the second elastic retainer ring 10, and the sliding assembly 11 can be prevented from moving under the action of the second elastic retainer ring 10.
According to the embodiment shown in fig. 1, 2 and 4, the inner wall of the outer surface hydraulic cylinder 14 of the second circlip 10 is in contact, a sliding component 11 is arranged between the inner wall of the pressure cylinder 15 and the outer wall of the hydraulic cylinder 14, the sliding component 11 comprises a steel lip frame 1102, a second stirling seal 1101 is arranged in the steel lip frame 1102 near the top, a second sliding bearing 1103 is arranged in the middle of the steel lip frame 1102, a fourth O-shaped ring 1104 is arranged in a groove of the outer wall of the steel lip frame 1102, and the outer surface of the fourth O-shaped ring 1104 is in contact with the inner wall of the pressure cylinder 15, so that the tightness between the steel lip frame 1102 and the pressure cylinder 15 can be improved under the action of the fourth O-shaped ring 1104.
According to the embodiment shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 7, the second frame oil seal 1105 is provided in the steel lip frame 1102 near the bottom, the support ring 13 is provided in the hydraulic cylinder 14, a plurality of bayonets 1301 and a hydraulic oil port 1302 are provided on the support ring 13, the piston rod 17 is provided in the fixing seat 5, one end of the bolt 8 is screwed on the top opening of the piston rod 17, the piston rod 17 is movably sleeved in the hydraulic cylinder 14, the first sliding bearing 203 is mounted on the outer surface of the piston rod 17, the spring seat 16 is mounted on the bottom opening of the embedded frame 205, and the spring body 18 can be stably fixed on the shock absorber under the cooperation of the spring seat 16 and the spring disc 24.
According to the figures 1, 2 and 6, the bottom of the pressure-bearing cylinder 15 is positioned at the top groove of the spring seat 16, the spring body 18 is installed at the lower side of the spring seat 16, the piston rod 17 is positioned in the spring seat 16 and the spring body 18, the oil storage cylinder 20 is arranged in the spring body 18, the bottom end of the piston rod 17 is positioned in the oil storage cylinder 20, the placement hole 12 is formed in the top of the piston rod 17, the magnetic coil 6 and the wire harness 701 are positioned in the placement hole 12, the third circlip 22 is arranged at the two grooves, which are close to the bottom, of the outer surface of the piston rod 17, and the magnetic wire ring 23 and the piston rod 17 can be connected together under the action of the third circlip 22.
According to the embodiments shown in fig. 1, 2 and 6, a guide 19 is provided in the oil storage cylinder 20, a piston rod 17 is movably sleeved in the guide 19, a working cylinder 21 is fixed in the oil storage cylinder 20, the bottom of the guide 19 is located at the top opening of the working cylinder 21, a magnet ring 23 is provided in the working cylinder 21, the magnet ring 23 includes an upper gland 2301, a valve seat 2304 is mounted at the bottom of the upper gland 2301, a magnetism isolation ring 2303 is provided in the valve seat 2304, a lower gland 2305 is mounted at the bottom of the valve seat 2304, and the magnetism isolation ring 2303 can be fixed in the valve seat 2304 under the cooperation of the lower gland 2305 and the upper gland 2301.
According to the embodiments shown in fig. 1, fig. 2 and fig. 6, a plurality of clear holes 2302 are formed on the top of the upper gland 2301, the top of the magnetism isolation ring 2303 and the top of the lower gland 2305 at equal intervals, the bottom ends of the magnetic coils 6 are respectively movably sleeved in the upper gland 2301, the two third circlips 22 and the magnetism isolation ring 2303, the outer wall of the oil storage cylinder 20 is provided with a spring disc 24, the bottom end of the spring body 18 is installed on the top of the spring disc 24, a groove on the inner wall of the spring disc 24 is provided with a fourth circlip 25, the fourth circlip 25 is positioned on the outer wall of the oil storage cylinder 20, the bottom valve 26 is installed on the bottom of the inner wall of the oil storage cylinder 20, and the bottom valve 26 is provided with a hanging ring 27, so that the hanging ring 27 and the oil storage cylinder 20 can be conveniently connected together under the action of the bottom valve 26.
The whole mechanism achieves the following effects: firstly, one end of a hydraulic oil pipe 3 is connected with an oil pump of an automobile, hydraulic oil in the oil pump of the automobile directly enters the hydraulic oil pipe 3, then passes through the inside of a fixed seat 5 and then directly enters a gap between the inside of a hydraulic cylinder 14 and the outer wall of a piston rod 17 and a gap between the inner wall of a pressure-bearing cylinder 15 and the outer wall of the hydraulic cylinder 14 to generate a high-pressure cavity, at the moment, the high-pressure cavity needs to be increased in space for releasing pressure, at the moment, when the high-pressure cavity releases pressure, the high-pressure cavity directly pushes a moving assembly 2 to move in a direction away from the hydraulic cylinder 14, the moving assembly 2 and a sliding assembly 11 are respectively fixed on the inner end surface of the pressure-bearing cylinder 15 under the cooperation of a first elastic check ring 1 and a second elastic check ring 10, namely, the whole movement of the components in a direction away from the hydraulic cylinder 14 is realized, at this time, under the cooperation of the piston rod 17, the fixing seat 5, the bolt 8, the spring seat 16, the moving assembly 2 and the spring body 18, the spring body 18 directly generates acting force to prevent the moving assembly 2 from moving towards the direction of the spring body 18, so that the piston rod 17 stretches, and then the multi-contact type height sensor 7 inside the placement hole 12 on the piston rod 17 and the magnet 201 on the moving assembly 2 change in position, when the energizing coil 706 and the magnet 201 move, according to faraday's law of electromagnetic induction, the multi-contact type height sensor 7 directly transmits the position signal of each contact body 707 to the vehicle-mounted electronic control unit for processing and analysis through the cooperation of the corresponding contact body 707 triggered by the connection of the wire harness 701 and the vehicle-mounted electronic control unit, and gives a designation, then the signal given by the wire harness 701 is transmitted to the magnet coil 6 in the magnet wire loop 23, the current on the magnetic coil 6 is improved, so that the speed of the magnetorheological fluid flowing into and out of the magnetic wire loop 23 is reduced, the damping force is increased finally, the distance between the fixed seat 5 and the lifting ring 27 is increased, namely, the ground clearance of the automobile is increased, when the distance between the fixed seat 5 and the lifting ring 27 is increased, the external force applied to the whole ground clearance adjustable shock absorber is unchanged, namely, the weight of the automobile is unchanged, and therefore, the spring body 18 is not deformed, and the moving assembly 2 is not displaced. When the pressure of hydraulic oil in an automobile oil pump is reduced, low pressure difference is generated in gaps between the hydraulic cylinder 14 and the piston rod 17 and between the pressure-bearing cylinder 15 and the hydraulic cylinder 14, the distance between the piston rod 17 is shortened under the action of external force of the weight of the automobile body, so that the distance between the fixed seat 5 and the lifting ring 27 is reduced, when the distance between the fixed seat 5 and the lifting ring 27 is shortened, the magnetic coil 6 can reduce current, so that the speed of flowing magnetorheological fluid into and out of the magnetic wire ring 23 is improved, the damping force is reduced finally, and then the ground clearance of the automobile is reduced.
Wherein, the magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic permeability, the change of magnetic field force can change the speed of the magnetorheological fluid flowing into and out of the magnetic wire ring 23 through the unblocked holes 2302, the larger the magnetic field force is, the slower the circulation speed is;
the supporting ring 13 is in a ring buckle shape and is made of nylon flexible materials; the sliding component 11 is in a circular sleeve shape; the motion component 2 is in a boss shape; the spring body 18 is tapered; the piston rod 17 is made of 304 austenitic stainless steel and is nonmagnetic; the magnet wire ring 23 is honeycomb briquette-shaped;
the multi-contact level sensor 7, the cpu 703, the capacitor 704, the circuit board 705, the power coil 706, the contact body 707, the magnetism isolating ring 2303, and the bottom valve 26 are all prior art and will not be explained in any great detail herein.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (1)

1. The utility model provides a ground clearance adjustable shock absorber which characterized in that: the device comprises a first circlip (1), wherein the top of the first circlip (1) is provided with a multi-contact type height sensor (7);
the multi-contact type height sensor (7) comprises a wire harness (701), a chuck (702) is sleeved on an outer surface fixing sleeve of the wire harness (701), a circuit board (705) is installed at the bottom of the chuck (702), a central processing unit (703) is installed on the front surface of the circuit board (705), a plurality of capacitors (704) are installed on the front surface of the circuit board (705), two energizing coils (706) are installed on the back surface of the circuit board (705), a plurality of contact bodies (707) are installed on the front surface of the circuit board (705) in an equidistant distribution mode, the two energizing coils (706) are electrically connected with the central processing unit (703), and the wire harness (701) is electrically connected with the central processing unit (703);
the inside of first circlip (1) is provided with motion subassembly (2), motion subassembly (2) include magnet (201), the outer wall of magnet (201) is inlayed and is equipped with embedded skeleton (205), the inside of embedded skeleton (205) is provided with first ston and seals (202), first slide bearing (203) are installed to the inside intermediate position of embedded skeleton (205), the surface groove department of embedded skeleton (205) is provided with first O type circle (204), the inside of embedded skeleton (205) is close to bottom position and is provided with first skeleton oil blanket (206), the inner wall of magnet (201) is close to bottom position with the surface of embedded skeleton (205) and contacts, the surface of first circlip (1) is provided with pressure-bearing cylinder (15), the surface of first O type circle (204) is contacted with the inner wall of pressure-bearing cylinder (15), the surface of embedded skeleton (205) is contacted with the inner wall of pressure-bearing cylinder (15), the opening of pressure-bearing cylinder (15) is located, the opening of pressure-bearing cylinder (205) is located at the position of being close to bottom position of being installed, the fixing base (14) is located at the opening of pressure-bearing cylinder (15), the opening of pressure-bearing cylinder (14) is located at the top (5), the novel hydraulic cylinder is characterized in that a second O-shaped ring (4) is arranged at a groove on the outer surface of the fixed seat (5), the outer surface of the second O-shaped ring (4) is in contact with the inner wall of the hydraulic cylinder (14), a bolt (8) is arranged at the top opening of the fixed seat (5), a magnetic coil (6) is movably arranged at the top of the bolt (8), one end of a wire harness (701) penetrates through the bottom of one end of the bolt (8), a third O-shaped ring (9) is arranged on the inner wall of the fixed seat (5), and a second elastic retainer ring (10) is arranged at the groove on the outer wall of the fixed seat (5);
the inner wall of an outer surface hydraulic cylinder (14) of the second elastic retainer ring (10) is contacted, a sliding component (11) is arranged between the inner wall of a pressure cylinder (15) and the outer wall of the hydraulic cylinder (14), the sliding component (11) comprises a steel lip framework (1102), a second stent (1101) is arranged in the steel lip framework (1102) near the top, a second sliding bearing (1103) is arranged in the middle of the inside of the steel lip framework (1102), a fourth O-shaped ring (1104) is arranged at the groove of the outer wall of the steel lip framework (1102), the outer surface of the fourth O-shaped ring (1104) is contacted with the inner wall of the pressure cylinder (15), a second framework oil seal (1102) is arranged in the steel lip framework (1102) near the bottom, a supporting ring (13) is arranged in the hydraulic cylinder (14), a plurality of fixing seats (1301) and a hydraulic oil port (1302) are arranged on the supporting ring (13), a fourth O-shaped ring (1104) is arranged in the middle of the steel lip framework (1102), a plurality of fixing seats (17) is arranged in the supporting ring (13), a plurality of bolts (1301) are connected with the piston rod (17) at one end of the piston rod (17) in a sleeved mode, the piston rod (17) is connected with the piston rod (17), the bottom opening part of the embedded type framework (205) is provided with a spring seat (16), the bottom of the pressure-bearing cylinder (15) is positioned at a top groove of the spring seat (16), the lower side of the spring seat (16) is provided with a spring body (18), the piston rod (17) is positioned in the spring seat (16) and the spring body (18), the spring body (18) is internally provided with a storage cylinder (20), the bottom end of the piston rod (17) is positioned in the storage cylinder (20), the top of the piston rod (17) is provided with a placement hole (12), the magnetic coil (6) and the wire harness (701) are positioned in the placement hole (12), and two grooves, close to the bottom, of the outer surface of the piston rod (17) are provided with third elastic check rings (22);
the inside of the oil storage cylinder (20) is provided with a guide (19), a piston rod (17) is movably sleeved in the guide (19), a working cylinder (21) is fixed in the oil storage cylinder (20), the bottom of the guide (19) is positioned at the top opening of the working cylinder (21), a magnet wire ring (23) is arranged in the working cylinder (21), the magnet wire ring (23) comprises an upper gland (2301), a valve seat (2304) is arranged at the bottom of the upper gland (2301), a magnetism isolation ring (2303) is arranged in the valve seat (2304), a lower gland (2305) is arranged at the bottom of the valve seat (2304), a plurality of through holes (2302) are uniformly distributed at the top of the upper gland (2301), the top of the magnetism isolation ring (2303) and the top of the lower gland (2305), the bottom of the magnet wire ring (6) is movably sleeved in the inner part of the upper gland (2301), the inner side of the two third elastic retainer rings (22) and the inner wall (24) of the inner cylinder (20), a fourth elastic retainer ring (24) is arranged at the bottom of the valve seat (20), and a hanging ring (27) is arranged at the bottom of the bottom valve (26).
CN202310849626.9A 2023-07-12 2023-07-12 Shock absorber with adjustable ground clearance Active CN116877623B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066299A1 (en) * 1981-06-03 1982-12-08 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Hydraulic telescopic shock absorber for a motor vehicle
DE4029596A1 (en) * 1990-09-19 1992-03-26 Teves Gmbh Alfred Vibration damper for vehicles - includes by=pass pipe and axially displaceable inertia bodies
KR20090100485A (en) * 2008-03-20 2009-09-24 주식회사 만도 Shock absorber for adjusting damping force using electromagnets
JP2011007322A (en) * 2009-05-29 2011-01-13 Hitachi Automotive Systems Ltd Damping force adjustment type shock absorber
CN102935794A (en) * 2012-04-19 2013-02-20 浙江金刚汽车有限公司 Vehicle body active balance damping system and control method
CN104989771A (en) * 2015-06-17 2015-10-21 东华大学 Intelligent-regulation automobile car damper based on single chip microcomputer
WO2016188933A2 (en) * 2015-05-28 2016-12-01 Adrian Ioan Niculescu Shock absorbers and suspensions with trim correctors
WO2022133748A1 (en) * 2020-12-22 2022-06-30 浙江吉利控股集团有限公司 Damper
CN116221332A (en) * 2023-04-11 2023-06-06 临沂天一减震器有限公司 Cylinder type shock absorber for automotive suspension

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066299A1 (en) * 1981-06-03 1982-12-08 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Hydraulic telescopic shock absorber for a motor vehicle
DE4029596A1 (en) * 1990-09-19 1992-03-26 Teves Gmbh Alfred Vibration damper for vehicles - includes by=pass pipe and axially displaceable inertia bodies
KR20090100485A (en) * 2008-03-20 2009-09-24 주식회사 만도 Shock absorber for adjusting damping force using electromagnets
JP2011007322A (en) * 2009-05-29 2011-01-13 Hitachi Automotive Systems Ltd Damping force adjustment type shock absorber
CN102935794A (en) * 2012-04-19 2013-02-20 浙江金刚汽车有限公司 Vehicle body active balance damping system and control method
WO2016188933A2 (en) * 2015-05-28 2016-12-01 Adrian Ioan Niculescu Shock absorbers and suspensions with trim correctors
CN104989771A (en) * 2015-06-17 2015-10-21 东华大学 Intelligent-regulation automobile car damper based on single chip microcomputer
WO2022133748A1 (en) * 2020-12-22 2022-06-30 浙江吉利控股集团有限公司 Damper
CN116221332A (en) * 2023-04-11 2023-06-06 临沂天一减震器有限公司 Cylinder type shock absorber for automotive suspension

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