CN112049888B - Car hydraulic pressure suspension structure and car - Google Patents

Car hydraulic pressure suspension structure and car Download PDF

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Publication number
CN112049888B
CN112049888B CN202010879435.3A CN202010879435A CN112049888B CN 112049888 B CN112049888 B CN 112049888B CN 202010879435 A CN202010879435 A CN 202010879435A CN 112049888 B CN112049888 B CN 112049888B
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China
Prior art keywords
runner
automobile
leather cup
hole
main spring
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CN202010879435.3A
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Chinese (zh)
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CN112049888A (en
Inventor
苏泽博
曾肇豪
李锦庭
邓雄志
陈朋
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Priority to CN202010879435.3A priority Critical patent/CN112049888B/en
Publication of CN112049888A publication Critical patent/CN112049888A/en
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    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/085—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper characterised by features of plastics springs; Attachment arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1208—Resilient supports
    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
    • F16F13/102—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of flexible walls of equilibration chambers; decoupling or self-tuning means
    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
    • F16F13/105—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
    • F16F13/107—Passage design between working chambers
    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
    • F16F13/262—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions changing geometry of passages between working and equilibration chambers, e.g. cross-sectional area or length
    • 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
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
    • F16F13/266—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for acting dynamically on the walls bounding a passage between working and equilibration chambers
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention belongs to the technical field of automobile parts, and particularly relates to an automobile hydraulic suspension structure and an automobile. The hydraulic suspension structure of the automobile comprises a main spring assembly, a leather cup assembly and a flow passage assembly; an upper liquid chamber is arranged in the main spring assembly; a lower liquid chamber is arranged in the leather cup component; the runner assembly comprises a runner pipe, a decoupling film and a runner framework; the runner framework is provided with a mounting through hole, an upper runner hole and a lower runner hole; the decoupling film is arranged in the mounting through hole and is used for separating the upper liquid chamber from the lower liquid chamber; one end of the runner pipe is connected with the runner framework through the upper runner hole and communicated with the upper liquid chamber, and the other end of the runner pipe is connected with the runner framework through the lower runner hole and communicated with the lower liquid chamber. According to the invention, the runner pipe is externally arranged, so that the length and the sectional area of the runner pipe can be conveniently changed, further, the automobile can obtain higher damping characteristic under low-frequency large amplitude, meanwhile, the shape and rigidity adjusting space of the decoupling film is larger, and further, the automobile can obtain lower dynamic rigidity characteristic under high-frequency small amplitude.

Description

Car hydraulic pressure suspension structure and car
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to an automobile hydraulic suspension structure and an automobile.
Background
The automobile suspension is an elastic connection system between an automobile engine assembly and a frame, has good damping performance, and can reduce the transmission of the vibration of the automobile engine to an automobile body. The common rubber suspension is widely applied due to low price and simple structure. However, the rubber suspension cannot meet the characteristic requirement of large damping when the automobile is in low-frequency large-amplitude vibration, and cannot meet the characteristic requirement of small rigidity and small damping when the automobile is in high-frequency small-amplitude vibration.
The hydraulic suspension of the automobile is characterized in that a liquid damping mechanism is added on the basis of a rubber structure, has good variable-frequency and variable-amplitude characteristics, and is widely applied to an automobile power assembly suspension system. However, in the prior art, the automobile hydraulic mount is limited by the size of the internal space, and only limited damping can be provided, so that the effect of rapidly reducing vibration when the automobile is subjected to threshold-crossing impact is limited, and the decoupling film in the automobile hydraulic mount in the prior art is also limited by the design space, so that the problem that the adjustable space of the rigidity of the decoupling film under the high-frequency hard rule is small easily occurs, and the vibration isolation performance of the automobile hydraulic mount is limited. In addition, in the prior art, a decoupling film of an automobile hydraulic mount is usually arranged between a runner cover plate and a lower base, and when the decoupling film works, the decoupling film is subjected to reciprocating stamping of damping liquid, and the damping liquid can generate unpleasant abnormal sound to the slapping of the runner cover plate.
Disclosure of Invention
The invention solves the technical problems of small adjustable space of the rigidity of a decoupling film, poor vibration isolation performance and the like of the hydraulic suspension of the automobile in the prior art, and provides an automobile hydraulic suspension structure and an automobile.
In view of the above problems, an embodiment of the present invention provides an automotive hydraulic suspension structure, including a main spring assembly, a cup assembly, and a runner assembly; an upper liquid chamber for containing damping liquid is arranged in the main spring assembly; a liquid discharging chamber used for containing damping liquid is arranged in the leather cup assembly;
the runner assembly comprises a runner pipe, a decoupling film and a runner framework arranged between the main spring assembly and the leather cup assembly; the runner framework is provided with a mounting through hole, an upper runner hole and a lower runner hole; the decoupling film is installed in the installation through hole and is used for separating the upper liquid chamber and the lower liquid chamber; one end of the runner pipe is connected with the runner framework through the upper runner hole and communicated with the upper liquid chamber, and the other end of the runner pipe is connected with the runner framework through the lower runner hole and communicated with the lower liquid chamber.
Optionally, the main spring assembly comprises an inner core, an inner main spring, and an inner skeleton; the upper end of the inner main spring is provided with an installation groove, and the inner core is installed in the installation groove; the lower end of the inner main spring is provided with an annular groove; the inner framework is arranged in the annular groove; and the upper liquid chamber is surrounded between the inner main spring and the decoupling film.
Optionally, the cup assembly comprises a lower cup and a cup pressing plate connected with the lower cup; and the lower leather cup and the decoupling film enclose the lower liquid chamber.
Optionally, the leather cup pressing plate and the lower leather cup are both made of nylon materials; the leather cup pressing plate and the lower leather cup are molded through a vulcanization process.
Optionally, a clamping hook is arranged on the leather cup pressing plate; an annular buckle groove is formed in the inner framework; the runner framework is clamped with the annular clamping groove through the clamping hook and is in interference connection between the inner main spring and the lower leather cup.
Optionally, the hydraulic suspension structure of the automobile further comprises an upper shell and a lower shell connected with the upper shell; an accommodating space is enclosed between the upper shell and the lower shell; the main spring assembly, the leather cup assembly, the decoupling film and the runner framework are all located in the accommodating space.
Optionally, the lower shell is provided with a first through hole and a second through hole which are matched with the runner pipe; the runner pipe comprises a first connecting section, a middle section and a second connecting section which are connected in sequence; the interlude is installed on the lateral wall of casing down, the one end that first linkage segment kept away from the interlude passes first through-hole stretches into in the accommodation space and communicates the up flow channel hole, the one end that the interlude was kept away from to the second linkage segment passes the second through-hole stretches into in the accommodation space and communicates down the flow channel hole.
Optionally, the hydraulic suspension structure of the automobile further comprises a support leg mounted on the outer wall of the lower shell; the automobile hydraulic suspension structure is connected with an automobile body through the support legs.
Optionally, the decoupling film is made of a nylon material, and the decoupling film and the runner framework are formed through a vulcanization process.
According to the invention, the runner assembly comprises a runner pipe, a runner framework and a decoupling film arranged between the upper liquid chamber and the lower liquid chamber, wherein the runner framework is provided with a mounting through hole for mounting the decoupling film, one end of the runner pipe is communicated with the upper liquid chamber through the upper runner hole on the runner framework, the other end of the runner pipe is communicated with the lower liquid chamber through the lower runner hole of the runner pipe, namely the runner pipe is externally arranged on the main spring assembly and the leather cup assembly, the length and the sectional area of the runner pipe can be conveniently changed, so that the automobile can obtain higher damping characteristics under low-frequency large amplitude, meanwhile, the decoupling film is directly connected to the runner framework, the shape and rigidity adjusting space of the decoupling film is larger, and the automobile can obtain lower dynamic rigidity characteristics under high-frequency small amplitude. The hydraulic suspension structure of the automobile has good vibration isolation performance, and is simple in structure and assembly process and good in sealing performance.
The invention also provides an automobile, which comprises the automobile hydraulic suspension structure; the automobile hydraulic suspension structure further comprises a supporting arm connected to one end, far away from the leather cup assembly, of the inner core; the automobile hydraulic suspension structure is connected with an automobile power assembly through the supporting arm.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a cross-sectional view of a hydraulic suspension structure of an automobile according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
fig. 3 is a schematic structural diagram of a flow passage assembly of a hydraulic suspension structure of an automobile according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of section B-B of FIG. 3 in accordance with the present invention;
FIG. 5 is a top view of a hydraulic mount for a vehicle according to an embodiment of the present invention;
fig. 6 is a front view of a hydraulic suspension structure of an automobile according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a main spring assembly; 11. a liquid feeding chamber; 12. an inner core; 13. an inner main spring; 131. mounting grooves; 132. an annular groove; 14. an inner skeleton; 141. an annular snap groove; 2. a cup assembly; 21. a lower liquid chamber; 22. a lower leather cup; 23. a leather cup pressing plate; 231. a hook is clamped; 3. a flow channel assembly; 31. a runner pipe; 311. a first connection section; 312. a middle section; 313. a second connection section; 32. a decoupling membrane; 33. a runner skeleton; 331. mounting a through hole; 332. an upper flow passage hole; 4. an upper housing; 5. a lower housing; 51. a first through hole; 52. a second through hole; 6. a supporting arm; 7. and (3) a support leg.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the invention, in order to better show the structure of the hydraulic suspension structure of the automobile and the connection relationship thereof, the upper direction refers to the direction actually pointing to the roof of the automobile (namely, the upper direction of the hydraulic suspension structure of the automobile shown in fig. 1); the "lower" in the sense of the present invention is the direction that is actually pointing towards the bottom of the car (i.e. below the hydraulic suspension of the car shown in fig. 1).
As shown in fig. 1 and 3, a hydraulic suspension structure for an automobile according to an embodiment of the present invention includes a main spring assembly 1, a cup assembly 2, and a runner assembly 3; an upper liquid chamber 11 for containing damping liquid is arranged in the main spring assembly 1; a lower liquid chamber 21 for containing damping liquid is arranged in the leather cup assembly 2; it is understood that the automobile power assembly (the automobile power assembly comprises an engine, a transmission and the like) is installed on the automobile body through the automobile hydraulic suspension structure, and the automobile hydraulic suspension structure plays a role in isolating vibration between the automobile power assembly and the automobile body.
The runner assembly 3 comprises a runner pipe 31, a decoupling film 32 and a runner framework 33 arranged between the main spring assembly 1 and the leather cup assembly 2; the runner frame 33 is provided with a mounting through hole 331, an upper runner hole 332 and a lower runner hole (not shown); the decoupling film 32 is installed in the mounting through hole 331 and serves to partition the upper liquid chamber 11 and the lower liquid chamber 21; one end of the flow passage pipe 31 is connected to the flow passage frame 33 through the upper flow passage hole 332 and communicates with the upper liquid chamber 11, and the other end of the flow passage pipe 31 is connected to the flow passage frame 33 through the lower flow passage hole and communicates with the lower liquid chamber 21. Understandably, the runner framework 33 and the decoupling film 32 are arranged between the main spring assembly 1 and the leather cup assembly 2, and other structural members such as a support and a runner cover plate are not required to be arranged, so that the problem of abnormal sound generated when the decoupling film 32 slaps the runner cover plate is avoided, the riveting process between the runner cover plate and the decoupling film 32 is reduced, and meanwhile, the lightweight design of an automobile is facilitated. Further, by directly disposing the decoupling film 32 in the mounting through hole 331 of the runner frame 33, the decoupling film 32 with any shape can be designed, so as to fully utilize the hydraulic space between the upper liquid chamber 11 and the lower liquid chamber 21, and the hydraulic suspension structure of the automobile has good vibration isolation performance under low rigidity.
Specifically, when the automobile vibrates at a low frequency with a large amplitude, in order to quickly damp the vibration of the automobile engine caused by the excitation of the road surface, the damping fluid in the upper fluid chamber 11 flows into the lower fluid chamber 21 through the flow passage pipe 31, or the damping fluid in the lower fluid chamber 21 flows into the upper fluid chamber 11 through the flow passage pipe 31, so that the damping coefficient of the damping fluid is increased, and the automobile hydraulic suspension structure can provide large damping; when the automobile vibrates at high frequency and small amplitude, in order to reduce the vibration of the automobile body caused by the excitation of the automobile engine transmitted to the automobile body, the decoupling film 32 can vibrate up and down in the upper liquid chamber 11 and the lower liquid chamber 21 in a reciprocating manner, and the hydraulic suspension structure of the automobile has the characteristics of small rigidity and small damping.
In the invention, the runner component 3 comprises a runner pipe 31, a decoupling film 32 and a runner framework 33 arranged between the main spring component 1 and the leather cup component 2; the decoupling film 32 is mounted in the mounting through-hole 331 and serves to partition the upper liquid chamber 11 and the lower liquid chamber 21; one end of the flow passage pipe 31 is connected to the flow passage frame 33 through the upper flow passage hole 332 and communicates with the upper liquid chamber 11, and the other end of the flow passage pipe 31 is connected to the flow passage frame 33 through the lower flow passage hole and communicates with the lower liquid chamber 21; namely, the runner pipe 31 is externally arranged on the rubber main spring assembly 1 and the leather cup assembly 2, so that the length and the sectional area of the runner pipe 31 can be conveniently changed, and further, the automobile can obtain higher damping characteristic under low-frequency large amplitude. In addition, the decoupling film 32 is directly connected to the runner framework 33, the shape and rigidity adjusting space of the decoupling film 32 is larger, and therefore the automobile can obtain lower dynamic rigidity characteristics under high frequency and small amplitude. The hydraulic suspension structure of the automobile has good vibration isolation performance, and is simple in structure and assembly process and good in sealing performance.
In an embodiment, the runner framework 33 is made of nylon material, and the decoupling film 32 and the runner framework 33 are formed through a vulcanization process. It is understood that the runner framework 33 includes, but is not limited to, nylon material, and the runner framework 33 may also be made of other plastic materials; the runner framework 33 made of nylon materials reduces the weight of the automobile hydraulic suspension structure, meanwhile, the decoupling film 32 and the runner framework 33 are molded through a vulcanization process, the number of parts between the decoupling film 32 and the runner framework 33 is reduced, the assembly efficiency of the automobile hydraulic suspension structure is improved, and the problem of abnormal sound caused by the fact that the decoupling film 32 slaps the runner cover plate in the traditional scheme can be completely avoided. In addition, the shape of the decoupling film 32 can be designed at will according to requirements, and the space inside the runner framework 33 can be greatly utilized, so that the area of the decoupling film 32 is increased, a larger adjustable space under low rigidity of the automobile hydraulic suspension structure can be realized, and the vibration isolation performance of the automobile hydraulic suspension structure is further improved.
In one embodiment, as shown in fig. 1, the main spring assembly 1 includes an inner core 12, an inner main spring 13, and an inner skeleton 14; the upper end of the inner main spring 13 is provided with a mounting groove 131, and the inner core 12 is mounted in the mounting groove 131; the lower end of the inner main spring 13 is provided with an annular groove 132; the inner frame 14 is arranged in the annular groove 132; the upper liquid chamber 11 is enclosed between the inner main spring 13 and the decoupling film 32. It is understood that the innerspring 13 serves to connect the core 12 to the innerspring 14, with one end of the core 12 mounted inside the innerspring 13 and the armature mounted outside the innerspring 13, and the shape of the innerspring 13 is designed according to the configuration of the core 12 and the armature 14.
Preferably, the inner core 12, the inner frame 14 and the inner main spring 13 are all nylon injection-molded parts, it is understood that the inner core 12, the inner frame 14 and the inner main spring 13 include but are not limited to nylon injection-molded parts, the inner core 12, the inner frame 14 and the inner main spring 13 may be made of other plastic materials, and the space between the inner core 12 and the inner main spring 13 and the space between the inner frame 14 and the inner main spring 13 are formed through a vulcanization process.
According to the invention, the main spring assembly 1 of the hydraulic suspension structure of the automobile is simple in structure, convenient to install and good in sealing performance.
In one embodiment, as shown in fig. 1, the cup assembly 2 includes a lower cup 22 and a cup pressing plate 23 connected to the lower cup 22; the lower leather cup 22 and the decoupling film 32 enclose the lower liquid chamber 21. Preferably, the leather cup pressing plate 23 and the lower leather cup 22 are both made of nylon materials; the leather cup pressing plate 23 and the lower leather cup 22 are not limited to be made of nylon materials, and the leather cup pressing plate 23 and the lower leather cup 22 can also be made of other plastic materials; the leather cup pressing plate 23 and the lower leather cup 22 are molded through a vulcanization process. Understandably, the leather cup pressing plate 23 and the lower leather cup 22 are molded through a vulcanization process, compared with the traditional separate design of the leather cup pressing plate 23 and the lower leather cup 22, the number of parts is reduced, the riveting process is reduced, and the assembly efficiency and the sealing performance of the hydraulic suspension structure of the automobile are further improved.
In one embodiment, as shown in fig. 1 and fig. 2, a hook 231 is disposed on the cup pressing plate 23; an annular buckling groove 141 is formed in the inner framework 14; the runner framework 33 is clamped with the annular clamping groove 141 through the clamping hook 231 and is in interference connection between the inner main spring 13 and the lower leather cup 22. Specifically, as shown in fig. 2, the clip 231 includes an extension portion and a clip portion connecting the extension portion; the clamping part and the extending part are both annular; the extension portion extends towards the main spring assembly 1 (i.e. extends from the lower liquid chamber 21 towards the upper liquid chamber 11), a clamping portion is arranged on the extension portion on the side away from the lower liquid chamber 21, and the clamping portion extends on the outer side wall of the extension portion towards the side away from the lower liquid chamber 21 (the extending direction is perpendicular to the extending direction of the extension portion); the annular snap groove 141 is an annular U-shaped groove formed at the lower end of the inner frame in a bent manner, and the opening direction of the annular snap groove 141 faces the lower liquid chamber 21. Understandably, when the hook 231 is fastened with the annular fastening groove 141, the fastening part of the hook 231 extends into the annular fastening groove 141 from the opening position of the annular fastening groove 141 and abuts against the inner side wall of the annular fastening groove 141, which is far away from the inner core 12; at this time, an annular mounting space is formed among the inner side wall of the extension part, which is far away from the clamping part, the inner main spring 13 and the lower leather cup 22; the outer edge of the runner framework 33 is inserted into the annular installation space and is in interference connection with the inner main spring 13 and the lower leather cup 22, the outer side wall of the runner framework 33 is abutted against the inner side wall of the extending part deviating from the clamping part, the upper end face and the lower end face of the runner framework 33 are respectively abutted against the inner main spring 13 and the lower leather cup 22, and the technical effect that the runner framework 33 is in interference connection between the inner main spring 13 and the lower leather cup 22 is achieved in the embodiment. Through the design of the buckle and the annular buckle groove 141, the assembly efficiency and the sealing performance of the automobile hydraulic suspension structure are improved, the problem that the upper liquid chamber 11 and the lower liquid chamber 21 cannot leak is solved, and the service life of the automobile hydraulic suspension structure is prolonged.
In one embodiment, as shown in fig. 1 and 6, the hydraulic suspension structure of the automobile further includes an upper housing 4 and a lower housing 5 connected to the upper housing 4; an accommodating space is enclosed between the upper shell 4 and the lower shell 5; the main spring assembly 1, the leather cup assembly 2, the decoupling film 32 and the runner framework 33 are all located in the accommodating space. It will be understood that the upper housing 4 and the lower housing 5 assemble the hydraulic suspension structure of the vehicle into a whole, so as to facilitate the installation and handling of the hydraulic suspension structure of the vehicle, and at the same time, the upper housing 4 and the lower housing 5 also serve to protect all internal components located in the accommodating space, such as: the automobile hydraulic suspension structure comprises a main spring assembly 1, a leather cup assembly 2, a runner framework 33, a decoupling film 32 and the like, and further prolongs the service life of the automobile hydraulic suspension structure.
In an embodiment, as shown in fig. 3 and 4, the lower shell 5 is provided with a first through hole 51 and a second through hole 52, both of which are adapted to the flow channel pipe 31; the runner pipe 31 includes a first connection section 311, an intermediate section 312, and a second connection section 313 connected in sequence; the middle section 312 is mounted on the outer side wall of the lower housing 5, one end of the first connecting section 311 away from the middle section 312 passes through the first through hole 51 and extends into the accommodating space and communicates with the upper flow passage hole 332, and one end of the second connecting section 313 away from the middle section 312 passes through the second through hole 52 and extends into the accommodating space and communicates with the lower flow passage hole. It can be understood that the middle section is arranged outside the lower shell 5 as a main body part of the runner pipe 31, thereby increasing the adjustable space of the length and the sectional area of the runner pipe 31 and providing a tuning space with higher damping for the hydraulic suspension structure of the automobile. As described above, the flow channel pipe 31 is a hard pipe, and at least one fixing buckle (1, 3, 5, etc.) for fixing the middle section is provided on the outer wall of the lower case 5, so that the flow channel pipe can be stably installed outside the lower case 5.
In one embodiment, as shown in fig. 5 and 6, the hydraulic suspension structure of the automobile further comprises a bracket arm 6 connected to an end of the main spring assembly 1 away from the cup assembly 2; the automobile hydraulic suspension structure is connected with an automobile power assembly through the supporting arm 6; specifically, a threaded hole is formed in the upper end of the inner core 12, a threaded through hole is formed in the support arm 6, and the support arm 6 is fixedly mounted on the inner core 12 through a bolt which penetrates through the threaded through hole and is screwed into the threaded hole. The design of the supporting arm 6 realizes the technical effect of installing the automobile power assembly on the automobile hydraulic suspension structure.
In one embodiment, as shown in fig. 5 and 6, the hydraulic suspension structure of the automobile further comprises a leg 7 mounted on the outer wall of the lower housing 5; the automobile hydraulic suspension structure is connected with an automobile body through the support legs 7. Understandably, the design of the supporting foot 7 achieves the technical effect of mounting the hydraulic suspension structure of the automobile on the automobile body; in conclusion, through the design of the bracket arm 6 and the support leg 7, the technical effect that the automobile power assembly is installed on the automobile body through the automobile hydraulic suspension structure is achieved.
As shown in fig. 5 and 6, an embodiment of the present invention further provides an automobile, including the hydraulic suspension structure of the automobile; the automobile hydraulic suspension structure further comprises a supporting arm 6 connected to one end, far away from the leather cup assembly 2, of the main spring assembly 1; the automobile hydraulic suspension structure is connected with an automobile power assembly through the supporting arm 6; specifically, a threaded hole is formed in the upper end of the inner core 12, a threaded through hole is formed in the support arm 6, and the support arm 6 is fixedly mounted on the inner core 12 through a bolt which penetrates through the threaded through hole and is screwed into the threaded hole. The design of the supporting arm 6 realizes the technical effect of installing the automobile power assembly on the automobile hydraulic suspension structure.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A hydraulic suspension structure of an automobile is characterized by comprising a main spring assembly, a leather cup assembly and a flow passage assembly; an upper liquid chamber for containing damping liquid is arranged in the main spring assembly; a liquid discharging chamber used for containing damping liquid is arranged in the leather cup assembly;
the runner assembly comprises a runner pipe, a decoupling film and a runner framework arranged between the main spring assembly and the leather cup assembly; the runner framework is provided with a mounting through hole, an upper runner hole and a lower runner hole; the decoupling film is installed in the installation through hole and is used for separating the upper liquid chamber and the lower liquid chamber; one end of the runner pipe is connected with the runner framework through the upper runner hole and communicated with the upper liquid chamber, and the other end of the runner pipe is connected with the runner framework through the lower runner hole and communicated with the lower liquid chamber;
the main spring assembly comprises an inner core, an inner main spring and an inner framework; the upper end of the inner main spring is provided with an installation groove, and the inner core is installed in the installation groove; the lower end of the inner main spring is provided with an annular groove, and the inner framework is arranged in the annular groove; the upper liquid chamber is enclosed between the inner main spring and the decoupling film;
the leather cup assembly comprises a lower leather cup and a leather cup pressing plate connected with the lower leather cup; the lower leather cup and the decoupling film enclose the lower liquid chamber;
a clamping hook is arranged on the leather cup pressing plate; an annular buckle groove is formed in the inner framework; the runner framework is clamped with the annular clamping groove through the clamping hook and is connected between the inner main spring and the lower leather cup in an interference manner; the buckle comprises an extension part and a clamping part connected with the extension part; the extension part extends towards the main spring assembly, the clamping part is arranged on one side, away from the lower liquid chamber, of the extension part, and the clamping part extends towards one side, away from the lower liquid chamber, of the outer side wall of the extension part;
the buckle the interior main spring with form an annular installation space between the leather cup down, the outward flange of runner skeleton insert in this annular installation space and with interior main spring with leather cup interference fit connects down, and, the lateral wall of runner skeleton with deviate from on the extension the inside wall butt of joint portion, the upper and lower both ends face of runner skeleton respectively with interior main spring with leather cup butt down.
2. The automotive hydraulic suspension structure according to claim 1, characterized in that the leather cup pressing plate and the lower leather cup are both made of nylon materials; the leather cup pressing plate and the lower leather cup are molded through a vulcanization process.
3. The automotive hydraulic mount structure according to claim 1, further comprising an upper housing and a lower housing connecting the upper housing; an accommodating space is enclosed between the upper shell and the lower shell; the main spring assembly, the leather cup assembly, the decoupling film and the runner framework are all located in the accommodating space.
4. The hydraulic suspension structure of claim 3, wherein the lower casing is provided with a first through hole and a second through hole which are both adapted to the runner pipe; the runner pipe comprises a first connecting section, a middle section and a second connecting section which are connected in sequence; the interlude is installed on the lateral wall of casing down, first linkage segment is kept away from the one end of interlude passes first through-hole stretches into in the accommodation space and communicate the up flow hole, the second linkage segment is kept away from the one end of interlude passes the second through-hole stretches into in the accommodation space and communicate down flow hole.
5. The automotive hydraulic suspension structure according to claim 3, further comprising a leg mounted on the outer wall of the lower housing; the automobile hydraulic suspension structure is connected with an automobile body through the support legs.
6. The automotive hydraulic suspension structure according to claim 1, wherein the runner framework is made of nylon material, and the decoupling film and the runner framework are molded through a vulcanization process.
7. An automobile, characterized by comprising the automobile hydraulic suspension structure of any one of claims 1 to 6; the automobile hydraulic suspension structure further comprises a supporting arm connected to one end, far away from the leather cup assembly, of the inner core; the automobile hydraulic suspension structure is connected with an automobile power assembly through the supporting arm.
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