CN116398573A - Shock absorber assembly - Google Patents

Shock absorber assembly Download PDF

Info

Publication number
CN116398573A
CN116398573A CN202310379620.XA CN202310379620A CN116398573A CN 116398573 A CN116398573 A CN 116398573A CN 202310379620 A CN202310379620 A CN 202310379620A CN 116398573 A CN116398573 A CN 116398573A
Authority
CN
China
Prior art keywords
shock absorber
rotor pump
moving part
guide cylinder
absorber assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310379620.XA
Other languages
Chinese (zh)
Inventor
颜伏伍
王恒达
景华斌
陈罚
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.)
Chongqing Seres New Energy Automobile Design Institute Co Ltd
Original Assignee
Chongqing Seres New Energy Automobile Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Seres New Energy Automobile Design Institute Co Ltd filed Critical Chongqing Seres New Energy Automobile Design Institute Co Ltd
Priority to CN202310379620.XA priority Critical patent/CN116398573A/en
Publication of CN116398573A publication Critical patent/CN116398573A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
    • B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units 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
    • F16F13/007—Units 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01—Attitude or posture control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/066—Variable stiffness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/18—Control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention discloses a shock absorber assembly, which comprises a shock absorber shell, a guide cylinder, a moving part, an elastic part and a driving part, wherein a piston is arranged in the shock absorber shell and divides the inside of the shock absorber shell to form an upper cavity and a lower cavity; the guide cylinder is arranged at the bottom of the shock absorber shell, the moving part moves axially in the guide cylinder, the driving part is used for pushing the moving part to move axially, and the elastic part is used for applying downward elastic force to the moving part. This patent is through driving piece, changes the position of bumper shock absorber assembly, better adjustment vehicle state, and damping road surface vibration.

Description

Shock absorber assembly
Technical Field
The invention relates to the technical field of shock absorbers, in particular to a shock absorber assembly.
Background
The shock absorber assembly weakens the influence of road vibration on a driver in the running process of the vehicle, the current general shock absorber assembly comprises a hydraulic spring and a compression spring, the comfort provided for the vehicle is gradually increased, but the air spring needs a compressor to provide compressed air, a throttle valve matched with the air spring, high sealing requirements and the like, and the system is complex; the hydraulic spring provides damping by means of hydraulic oil of the hydraulic spring and is matched with the spring to achieve damping, but the hydraulic spring cannot actively adapt to the running working condition of a vehicle.
Disclosure of Invention
In view of the above, the present invention provides a shock absorber assembly, which can not only satisfy the shock absorbing function, but also actively adapt to the vehicle state, and further increase the vehicle comfort.
The invention provides a shock absorber assembly which adopts the following technical scheme:
a shock absorber assembly comprises a shock absorber shell, a guide cylinder, a moving part, an elastic part and a driving part, wherein a piston is arranged in the shock absorber shell and divides the interior of the shock absorber shell into an upper cavity and a lower cavity;
the guide cylinder is arranged at the bottom of the shock absorber shell, the moving part moves axially in the guide cylinder, the driving part is used for pushing the moving part to move axially, and the elastic part is used for applying downward elastic force to the moving part.
Optionally, the shock absorber further comprises a rotor pump, wherein the rotor pump is arranged in the lower cavity of the shock absorber shell, the rotor pump is in running fit with the moving part, the rotor pump is provided with planetary gears, and the rotor of the rotor pump can be driven to rotate.
Optionally, the moving member drives the rotor pump to rotate.
Optionally, the moving part is an internal gear, and a rotor of the rotor pump is fixedly connected with the transmission shaft through a rotating shaft.
Optionally, a draft tube for allowing hydraulic oil to circulate between the upper cavity and the lower cavity is arranged on the damper housing.
Optionally, the bottom of guide cylinder is provided with the retainer plate, retainer plate and automobile body suspension fixed connection, internal gear sliding fit sets up between retainer plate and guide cylinder.
Optionally, the driving piece comprises a motor, and the motor drives the internal gear to axially move through the transmission shaft.
Optionally, an upper tray is fixedly arranged at the upper end of the damper shell, a lower tray is arranged at the lower end of the damper shell in a sliding fit manner, the elastic piece is a spring, the spring is arranged between the upper tray and the lower tray, and the internal gear is used for driving the lower tray to axially move
Optionally, a dust cover is fixedly arranged on the upper tray of the damper shell.
Optionally, the rotor pump and the internal gear are coaxial and have different diameters.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. this patent changes the position of bumper shock absorber assembly through the driving piece, better adjustment vehicle state, and damping road surface vibration can satisfy shock-absorbing function, can initiatively adapt to vehicle state again, further increases vehicle travelling comfort.
2. The internal gear and the rotor pump act together, and the shock absorber can actively adjust the vehicle posture, so that excitation is attenuated to the greatest extent, and better comfort is provided.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present invention;
fig. 2 is a schematic view of a part of the structure of an embodiment of the present invention.
Reference numerals illustrate: 1. a damper housing; 2. a guide cylinder; 3. a moving member; 4. an elastic member; 5. a driving member; 6. a piston; 7. a rotor pump; 8. a planet wheel; 9. a rotating shaft; 10. a draft tube; 11. a fixing ring; 12. an upper tray; 13. a lower tray; 14. a dust cover.
Detailed Description
The invention is described in further detail below with reference to fig. 1-2.
The embodiment of the invention discloses a shock absorber assembly.
Referring to fig. 1 and 2, a shock absorber assembly includes a shock absorber housing 1, a guide cylinder 2, a moving member 3, an elastic member 4, and a driving member 5, wherein a piston 6 is provided in the shock absorber housing 1, and the piston 6 divides the inside of the shock absorber housing 1 and forms an upper cavity and a lower cavity; the guide cylinder 2 is arranged at the bottom of the shock absorber shell 1, the moving part 3 moves axially inside the guide cylinder 2, the driving part 5 is used for pushing the moving part 3 to move axially, and the elastic part 4 is used for applying downward elastic force to the moving part 3. This patent changes the position of bumper shock absorber assembly through driving piece 5, better adjustment vehicle state, and damping road surface vibration can satisfy shock-absorbing function, can initiatively adapt to vehicle state again, further increases vehicle travelling comfort.
The damper housing 1 is provided with a draft tube 10 for circulating hydraulic oil between the upper chamber and the lower chamber.
In the present embodiment, the moving member 3 employs an internal gear, and the inside of the guide cylinder 2 is hollow for the internal gear to reciprocate in the axial direction of the guide cylinder 2, and the upper end surface of the internal gear can be made to compress the elastic member 4. The driving part 5 comprises a motor, and the motor drives the inner gear to axially move along the guide cylinder 2 through a transmission shaft. The transmission shaft adopts a screw, the internal gear is in threaded connection with the screw, the motor drives the screw to rotate, the internal gear moves along the axial direction of the guide cylinder 2, and the internal gear is driven to move up and down by the positive and negative rotation of the motor.
In this embodiment, the upper end of the damper housing 1 is fixedly provided with an upper tray 12, the lower end is provided with a lower tray 13 in a sliding fit, the upper tray 12 is connected with a vehicle body, and the guide cylinder 2 is used for preventing the lower tray 13 from rotating. In this embodiment, the elastic member 4 is a spring, the spring is disposed between the upper tray 12 and the lower tray 13, the spring is used for applying downward elastic force to the lower tray 13, the internal gear is used for driving the lower tray 13 to move along the axial direction, and the compression stroke of the spring is changed by adjusting the interval between the lower tray 13 and the upper tray 12, so as to change the elastic force of the spring, thereby realizing the change of the shock absorption degree of the shock absorber assembly.
The motor pushes the inner gear to move along the axial direction, the upper end face of the inner gear can compress the spring supported by the outside so as to adjust the axial height of the damper assembly, so that the damper can actively adapt to the state of a vehicle, and the comfort of the vehicle is further improved.
The lower cavity of shock absorber casing 1 sliding fit is provided with rotor pump 7, have planet wheel 8 on the rotor pump 7, in this embodiment, planet wheel 8 installs two along rotor pump 7 circumference interval, planet wheel 8's axis of rotation is located rotor pump 7, have the worm on the rotor pump 7, worm and two planet wheel 8 meshing, the worm passes through axis of rotation 9 and transmission shaft fixed connection, the transmission shaft is under the drive of motor, order about the worm rotation, thereby order about planet wheel 8 rotation, the motor realizes through positive and negative rotation that planet wheel 8 just reverses, thereby change the flow direction of hydraulic oil at shock absorber casing 1.
When the piston 6 moves downwards, the rotor pump 7 pressurizes hydraulic oil after rotating clockwise, and the pressure of the hydraulic oil at the lower end of the rotor pump 7 is reduced, so that the hydraulic oil at the upper end of the piston 6 flows to the lower end of the rotor pump 7 through the vent pipe 10; the oil pressure between the upper end of the rotor pump 7 and the piston 6 is increased, so that the moving distance of the piston 6 is reduced, and the road vibration is further reduced; when the piston 6 moves upwards, the rotor pump 7 rotates anticlockwise, the pressure of hydraulic oil at the lower end of the rotor pump 7 increases, the hydraulic oil flows to the upper end of the piston 6 through the ventilation pipe 10, the moving speed and the moving distance of the piston 6 are attenuated, and meanwhile, the oil pressure between the rotor pump 7 and the piston 6 is reduced, and the upward movement of the piston 6 is also blocked.
The bottom of the guide cylinder 2 is provided with a fixed ring 11, the fixed ring 11 is fixedly connected with a suspension of an automobile, and an internal gear is arranged between the fixed ring 11 and the guide cylinder 2 in a sliding fit along the axial direction of the guide cylinder 2. The retainer plate 11 is made of a high-strength material, and the height of the guide cylinder 2 can be shortened under the condition of meeting the strength, thereby shortening the height of the damper assembly and reducing the overall weight of the damper assembly.
The driving piece 5 drives the moving piece 3 to axially move along the guide cylinder 2, so that the height of the lower tray 13 is adjusted, the first height of the shock absorber assembly is adjusted, meanwhile, the second height of the shock absorber assembly can be adjusted through the rotation of the rotor pump 7, the driving motor drives the inner gear to axially move, meanwhile, the planet gears 8 of the rotor pump 7 can be driven to rotate, the inner gear and the rotor pump 7 jointly act, the shock absorber can actively adjust the vehicle posture, the damping excitation is maximally carried out, and better comfort is provided.
In addition, the rotor pump 7 and the internal gear are coaxial and have different diameters, in the embodiment, the diameter of the internal gear is larger than that of the rotor pump 7, so that the rotating speed of the planet gears 8 of the rotor pump 7 is faster than that of the internal gear, and the height of the damper assembly is adjusted more rapidly through the rotor pump 7, so that better comfort can be provided.
Moreover, the control of the flow direction speed of the hydraulic oil of the rotor pump 7 can be accurately controlled through the rotation speed control of the motor, and when the rotation speed of the motor is high, the pressure applied by the planet wheel 8 of the rotor pump 7 to the hydraulic oil is high, so that the flow direction speed of the hydraulic oil is high; when the rotating speed of the motor is low, the flow direction speed of the hydraulic oil is low, so that the pressure of the hydraulic oil can be adjusted.
The shock attenuation effect of hydraulic oil is more violent than the spring, and the damping effect on decay road surface is better, and wherein, road surface damping includes peak damping, to peak damping, the shock attenuation effect of hydraulic oil is better, when the vehicle passes through the road surface pothole, carries out the shock attenuation through the spring, and is softer.
The dust cover 14 is fixedly arranged on the upper tray 12 of the shock absorber housing 1, and the dust cover 14 improves the dust-proof effect of the shock absorber housing 1.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (10)

1. A shock absorber assembly, characterized in that: the novel shock absorber comprises a shock absorber shell (1), a guide cylinder (2), a moving part (3), an elastic part (4) and a driving part (5), wherein a piston (6) is arranged in the shock absorber shell (1), and the piston (6) separates the interior of the shock absorber shell (1) and forms an upper cavity and a lower cavity;
the guide cylinder (2) is arranged at the bottom of the shock absorber shell (1), the moving part (3) moves axially inside the guide cylinder (2), the driving part (5) is used for pushing the moving part (3) to move axially, and the elastic part (4) is used for applying downward elastic force to the moving part (3).
2. The shock absorber assembly as set forth in claim 1 wherein: still include rotor pump (7), rotor pump (7) set up in the lower cavity of bumper shock absorber casing (1), rotor pump (7) and moving part (3) normal running fit, rotor pump (7) have planet wheel (8), the rotation that the rotor of rotor pump (7) can be driven.
3. The shock absorber assembly as set forth in claim 2 wherein: the moving part (3) drives the rotor pump (7) to rotate.
4. A shock absorber assembly as claimed in claim 3, wherein: the moving part (3) is an internal gear, and a rotor of the rotor pump (7) is fixedly connected with the transmission shaft through a rotating shaft (9).
5. The shock absorber assembly as set forth in claim 1 wherein: a draft tube (10) for circulating hydraulic oil between the upper cavity and the lower cavity is arranged on the shock absorber shell (1).
6. A shock absorber assembly as claimed in claim 3, wherein: the bottom of guide cylinder (2) is provided with retainer plate (11), retainer plate (11) and automobile body suspension fixed connection, internal gear sliding fit sets up between retainer plate (11) and guide cylinder (2).
7. A shock absorber assembly as claimed in claim 3, wherein: the driving piece (5) comprises a motor, and the motor drives the internal gear to axially move through the transmission shaft.
8. A shock absorber assembly as claimed in claim 3, wherein: the upper end of the shock absorber shell (1) is fixedly provided with an upper tray (12), the lower end of the shock absorber shell is provided with a lower tray (13) in a sliding fit mode, the elastic piece (4) is a spring, the spring is arranged between the upper tray (12) and the lower tray (13), and the inner gear is used for driving the lower tray (13) to move along the axial direction.
9. A shock absorber assembly as claimed in claim 3, wherein: a dust cover (14) is fixedly arranged on the upper tray (12) of the shock absorber shell (1).
10. The shock absorber assembly as defined in claim 4, wherein: the rotor pump (7) and the internal gear are coaxial and have different diameters.
CN202310379620.XA 2023-04-10 2023-04-10 Shock absorber assembly Pending CN116398573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310379620.XA CN116398573A (en) 2023-04-10 2023-04-10 Shock absorber assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310379620.XA CN116398573A (en) 2023-04-10 2023-04-10 Shock absorber assembly

Publications (1)

Publication Number Publication Date
CN116398573A true CN116398573A (en) 2023-07-07

Family

ID=87009966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310379620.XA Pending CN116398573A (en) 2023-04-10 2023-04-10 Shock absorber assembly

Country Status (1)

Country Link
CN (1) CN116398573A (en)

Similar Documents

Publication Publication Date Title
CN101801695B (en) Electromagnetic shock absorber for vehicle
JP2001027275A (en) Damper
US20100007103A1 (en) Actuator for Active Roll Control System
CN1066249C (en) Single cylinder aerating bidirectional vibration absorber
US6412615B1 (en) Hydraulic shock absorber for motor vehicles
TW202030100A (en) Full-length height adjustable mechanism for shock absorber
CN116398573A (en) Shock absorber assembly
CN211715620U (en) Double-cylinder shock absorber for automobile
CN201916409U (en) Motor vehicle shock absorber
US8701846B2 (en) Inverted strut comprising an air damper combined with a hydraulic stop
CN114294366B (en) Flow velocity control type adjustable damping shock absorber and control method
RU2726324C1 (en) Damper
RU2733906C1 (en) Shock-absorber
CN209909058U (en) Full-length variable shock absorber vehicle height adjusting mechanism and shock absorber
CN204900643U (en) Damper
CN112128288A (en) Compression hydraulic buffer structure for vibration damper
CN1193902C (en) Small caster with buffer
CN207961395U (en) Vehicle shock absorber
CN110936780A (en) Automobile body balancing device
CN109340296B (en) Shock absorber capable of prolonging service life
CN213298665U (en) Motorcycle and front buffering mechanism thereof
CN210634360U (en) Adjustable automobile shock absorber ware support
CN214788746U (en) Impeller-driven electromagnetic energy-feedback type shock absorber
CN221097301U (en) Piston structure of shock absorber
CN108953451B (en) Air spring for electromechanical suspension device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination