CN114571980A - Integral type suspension framework lateral press-fitting hydraulic suspension device and vehicle - Google Patents

Integral type suspension framework lateral press-fitting hydraulic suspension device and vehicle Download PDF

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Publication number
CN114571980A
CN114571980A CN202011390300.7A CN202011390300A CN114571980A CN 114571980 A CN114571980 A CN 114571980A CN 202011390300 A CN202011390300 A CN 202011390300A CN 114571980 A CN114571980 A CN 114571980A
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CN
China
Prior art keywords
suspension
main spring
framework
flow channel
positioning
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Pending
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CN202011390300.7A
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Chinese (zh)
Inventor
黄磊
赵春一
王晓东
平立芳
史康
赵媛媛
李占钊
马超
殷建
郑超
牛玉龙
魏天伟
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202011390300.7A priority Critical patent/CN114571980A/en
Priority to PCT/CN2021/134523 priority patent/WO2022116975A1/en
Publication of CN114571980A publication Critical patent/CN114571980A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The application provides a lateral press-fitting hydraulic suspension device for an integral suspension framework, which comprises the suspension framework, wherein the suspension framework is of an integral structure and is provided with a cavity which is open in the lateral direction; the rubber main spring assembly comprises a main spring inner core, a rubber main spring and a main spring base, the main spring inner core and the rubber main spring are combined into a whole through a vulcanization process, and the rubber main spring assembly is laterally press-mounted in a cavity of the suspension framework through the main spring base; and the supporting arm is embedded into the rubber main spring assembly. This application with suspension skeleton and the pressure equipment of rubber main spring subassembly side direction, guaranteed the wholeness of suspension skeleton and the wholeness of liquid chamber. When the integral type suspension framework lateral press-fitting hydraulic suspension device is stressed, the phenomenon of liquid leakage of a liquid chamber cannot occur due to the abnormity of fracture and the like of the suspension framework, so that the strength and the mode of the hydraulic suspension system are higher.

Description

Integral type suspension framework lateral press-fitting hydraulic suspension device and vehicle
Technical Field
The application relates to the technical field of suspension structures, in particular to an integral type suspension framework lateral press-fitting hydraulic suspension device and a vehicle.
Background
Nowadays, new energy automobiles are increasingly popular with consumers, and large automobiles and enterprises continuously launch high-power and high-endurance pure electric automobile models to come into the market. The fuel vehicle is greatly challenged, the requirement for the weight of each part of the whole vehicle is reduced, the assembly performance of a product is improved, and each large vehicle enterprise makes a strict challenging weight target aiming at each part system of the whole vehicle. The power suspension system is used as a main product for bearing the power assembly, and can reduce the vibration transmitted from an engine to a supporting system (such as a vehicle body) to the minimum, thereby reducing the vibration noise of the vehicle power assembly, improving the riding comfort (driving smoothness) of the vehicle, prolonging the service life of the vehicle power assembly and the like.
The existing power suspension system mainly comprises several forms of rubber suspension, air spring suspension, hydraulic suspension, semi-active suspension, active suspension and the like. For the hydraulic suspension which is widely applied at present, the rubber main spring and the metal framework are usually pressed vertically, a closed main spring mounting structure is not arranged in the framework, the two suspension frameworks are used for forming a liquid chamber (the two frameworks are fastened through riveting or clamping), the liquid chamber is poor in sealing performance, when the frameworks are broken and the like, the liquid chamber leaks in the suspension system, and the strength and the mode of the suspension system are reduced.
Disclosure of Invention
The utility model provides an integral suspension skeleton side direction pressure equipment hydraulic suspension device to hydraulic suspension system adopts the upper and lower pressure equipment mode to lead to the liquid chamber leakproofness relatively poor among the solution prior art, and when taking place unusual such as skeleton fracture, the liquid chamber weeping phenomenon can appear in suspension system, has reduced suspension system's intensity and modal problem.
Correspondingly, the application also provides a vehicle comprising the integral type suspension framework lateral press-fitting hydraulic suspension device.
In order to solve the above problem, the application discloses integral suspension skeleton side direction pressure equipment hydraulic suspension device includes: the suspension framework is of an integral structure and is provided with a cavity which is open in the lateral direction; the rubber main spring assembly comprises a main spring inner core, a rubber main spring and a main spring base, the main spring inner core and the rubber main spring are combined into a whole through a vulcanization process, and the rubber main spring assembly is laterally press-mounted in a cavity of the suspension framework through the main spring base; and the supporting arm is embedded into the rubber main spring assembly.
Furthermore, two side walls of the cavity are respectively provided with a positioning protrusion, the side wall of the main spring base is provided with a positioning groove matched with the positioning protrusion, and the positioning protrusion is embedded into the positioning groove.
Furthermore, the side of the main spring base is also provided with a guide protrusion, and the included angle between the guide protrusion and the horizontal plane is 1 degree.
Furthermore, two side walls of the cavity are respectively provided with a supporting boss.
Furthermore, two side walls of the cavity are respectively provided with a riveting bulge.
Furthermore, the bottom joint of main spring base has the buckle, the buckle includes a plurality of trip, first recess reference column and second recess reference column, first recess reference column with the second recess reference column is located adjacent two between the trip, first recess reference column with form positioning groove, a plurality of between the second buckle recess reference column the buckle first recess reference column with second recess reference column integrated into one piece.
Further, the rubber main spring assembly further comprises a flow channel assembly, and the flow channel assembly is located in an accommodating space surrounded by the suspension framework and the rubber main spring assembly.
Furthermore, the runner assembly comprises a runner upper plate and a runner lower plate, the runner upper plate and the runner lower plate are welded after being positioned, and the positioning modes of the runner upper plate and the runner lower plate are one or more of wedge positioning, round hole positioning and pin shaft positioning.
Furthermore, a metal nesting is embedded in the upper left corner of the suspension framework, the metal nesting is of a reducing structure and/or a tooth structure, and the metal nesting is in interference fit with the suspension framework.
The application also provides a vehicle, the vehicle is provided with the integral type suspension framework lateral press-fitting hydraulic suspension device, the suspension framework is arranged on a frame of the vehicle or a power assembly of the vehicle.
Compared with the prior art, the integral suspension skeleton lateral pressure equipment hydraulic suspension device of this application includes following advantage:
(1) this application with suspension skeleton and the pressure equipment of rubber main spring subassembly side direction, guaranteed the wholeness of suspension skeleton and the wholeness of liquid chamber. When the integral type suspension framework lateral press-fitting hydraulic suspension device is stressed, the phenomenon of liquid leakage of a liquid chamber cannot occur due to the abnormity of fracture and the like of the suspension framework, so that the strength and the mode of the hydraulic suspension system are higher. In addition, the structure of the integral suspension framework is convenient for changing the position of the elastic central point of the hydraulic suspension, and only the suspension framework part is modified aiming at different arrangement positions of the hydraulic suspension, so that the overall change is reduced, and the arrangement requirement of the elastic central point of the whole vehicle is met;
(2) the positioning bulges and the supporting bulges are added on the structure of the suspension framework, so that the stress of the hydraulic suspension in the direction vertical to the ground is improved, and the suspension can still ensure the framework to be intact under the action of a 40KN force value vertical to the ground;
(3) the suspension skeleton structurally increases the direction arch and rivets protrudingly, has promoted hydraulic suspension side direction and has taken off power, and the inefficacy problem can not appear deviating from yet to side direction atress increase to 12 KN.
(4) The buckle is arranged on the main spring base, the positioning groove on the buckle is matched with the protrusion of the main spring base for use, so that the assembly and the positioning are convenient, and the problem of defective product outflow is effectively solved by controlling the sizes of the first groove positioning column and the second groove positioning column.
(5) The runner upper plate and the runner lower plate are positioned by adopting a wedge shape, a round hole or a pin shaft, so that the positioning precision is improved.
(6) The metal embedded sleeve is embedded on the suspension framework and in interference fit with the suspension framework, the assembly performance of the hydraulic suspension is improved, the manufacturing tolerance of the suspension and the vehicle body can be absorbed through the structural size control of the metal embedded member, and meanwhile the problem that the metal embedded sleeve is separated from the vehicle body is avoided.
Drawings
FIG. 1 is a structural diagram of a lateral press-fitting hydraulic suspension device of an integrated suspension framework of the invention, which is shown in the drawing (a) in front view, (B) in top view, (c) in right view, and (d) in section B-B;
FIG. 2 is a cross-sectional view taken along line B-B of the main spring assembly of the present invention;
FIG. 3 is an assembly view of a lateral press-fit hydraulic mount for an integrated suspension frame of the present invention;
FIG. 4 is an assembly view of the main spring mount and suspension armature in an embodiment of the present invention;
FIG. 5 is a right side view of the main spring mount in an embodiment of the present invention;
FIG. 6 is an assembly view of the main spring mount and clip of the present invention;
FIG. 7 is a block diagram of the trailing arm of the present invention: (a) front view, (b) right view, (c) top view, (d) assembly view;
FIG. 8 is a view showing the positioning of the upper and lower flow channel plates according to the present invention;
FIG. 9 is a sectional view showing the assembly of the upper flow path plate and the lower flow path plate in the present invention;
FIG. 10 is a cross-sectional view of an upper plate of the flow channel of the present invention;
FIG. 11 is a schematic view of a metal nest in the invention; (a) a front view; (b) a top view;
wherein, 1, metal nesting; 2. a suspension framework; 20. a cavity; 21. positioning the projection; 22. supporting the boss; 23. riveting a bulge; 3. a bracket arm; 31. a groove; 32. a liquid outlet; 33. positioning the projection; 4. a decoupling membrane; 5. a main spring inner core; 6. a rubber main spring; 7. a main spring mount; 71. a positioning groove; 72. a guide projection; 8. a flow channel assembly; 81. a runner upper plate; 82. a runner lower plate; 83. positioning in a wedge shape; 84. positioning the round hole; 85. a boss; 9. sealing the liquid beads; 10. an inertial channel; 11. buckling; 111. a hook is clamped; 112. a first groove positioning column; 113. a second groove positioning column; 114. a positioning groove; 12. a leather cup; 13. damping fluid; r1, metal nested inside circular hole radius; r2, metal nest top outer radius; r3, metal nesting; H. metal nesting height.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-3, a lateral press-fit hydraulic suspension device for an integral suspension skeleton is shown, which comprises: the suspension framework 2 is of an integral structure, and the suspension framework 2 is provided with a cavity 20 which is open in the lateral direction; rubber owner spring subassembly passes through 7 side direction pressure equipments in suspension skeleton 2 of main spring base, rubber owner spring subassembly includes main spring inner core 5, rubber owner spring 6 and main spring base 7, main spring inner core 5 and rubber owner spring 6 combine integratively through vulcanization process, main spring base 7 bonds on rubber owner spring 6, in the 3 embedding rubber owner spring subassemblies of trailing arm, suspension skeleton 2, main spring inner core 5, rubber owner spring 6 and main spring base 7 enclose into accommodation space, runner subassembly 8 is located accommodation space, and main spring base 7 and runner subassembly 8 joint.
In this embodiment, the supporting arm 3 is embedded in the main spring inner core 5 of the rubber main spring assembly, the supporting arm 3 and the main spring inner core 5 are in interference fit, the wedge-shaped protrusion of the supporting arm 3 is clamped into the square hole of the main spring inner core 5, and the main spring base 7 and the suspension framework 2 are in interference fit. The suspension framework 2, the supporting arm 3 and the main spring base 7 are made of aluminum alloy, the main spring inner core 5 is made of a plate material, the rubber main spring 6 is made of natural rubber, and the flow channel assembly 8 is made of engineering plastic (PA66+30 GF). The rubber main spring assembly is laterally pressed in the suspension framework 2, the integrity of the suspension framework 2 is ensured, and the strength and the mode of the hydraulic suspension (the suspension framework 2) are higher. The integrity of the suspension framework 2 can ensure the integrity of the liquid chamber, the liquid leakage phenomenon of the liquid chamber can not occur due to the abnormity of the fracture of the suspension framework and the like, the liquid chamber is independent of the suspension framework, and when the suspension system breaks down, only the suspension framework needs to be replaced without integral replacement; the integral structure of the suspension framework 2 only needs to modify the suspension framework part aiming at different arrangement positions of the hydraulic suspension, so that the overall change is reduced, and the requirement of arrangement of the elastic central point of the whole vehicle is met.
In this embodiment, the flow channel assembly 8 includes a flow channel upper plate 81 and a flow channel lower plate 82, the flow channel upper plate 81 and the flow channel lower plate 82 are welded together by using an ultrasonic welding process, and the flow channel upper plate 81 and the flow channel lower plate 82 are clamped with the main spring base 7 after being welded. A decoupling channel for placing the decoupling film 4 and an inertia channel 10 for the damping liquid 13 to flow are formed between the flow channel upper plate 81 and the flow channel lower plate 82, and the decoupling film 4 is placed in the decoupling channel. The bottom of the runner lower plate 82 is provided with a leather cup 12, and the leather cup 12 is made of rubber. An upper liquid chamber is formed between the flow passage upper plate 81 and the rubber main spring 6, and a lower liquid chamber is formed between the flow passage lower plate 82 and the cup 12, and the lower liquid chamber is communicated with the upper liquid chamber through the inertia passage 10. When the hydraulic suspension works, the volumes of the upper liquid chamber and the lower liquid chamber are changed due to the volume change of the rubber main spring 6, and the whole volume of the liquid chamber is kept unchanged through the up-and-down movement of the leather cup 12. In addition, a liquid sealing bead 9 is arranged between the flow channel assembly 8 and the main spring base 7, the liquid sealing bead 9 is made of steel, the liquid sealing bead 9 and the main spring base 7 form a one-way valve, and the liquid sealing bead 9 is used for filling damping liquid 13 and preventing the damping liquid 13 from flowing out during working.
Referring to fig. 4-5, when the main spring base 7 and the suspension frame 2 are assembled by lateral pressing, in order to avoid the lateral separation problem of the main spring base 7, the following assembly methods can be adopted: (1) two side walls of the cavity 20 are respectively provided with a positioning protrusion 21, the side wall of the main spring base 7 is provided with a positioning groove 71 matched with the positioning protrusion 21, the positioning protrusion 21 is embedded into the positioning groove 71, the size and the number of the positioning groove 71 are matched with the positioning protrusion 21, and a positioning structure matched with the positioning protrusion 21 and the positioning groove 71 plays a role in assisting in supporting the main spring base 7. (2) Main spring base 7 increases direction arch 72 with the fitting surface of suspension skeleton 2, and there is 1 degree contained angle in direction arch 72 and the horizontal plane, because the angle exists at the pressure equipment initial stage, be clearance fit between main spring base 7 and the suspension skeleton 2, accurate positioning in the main spring base 7 installation of being convenient for, the pressure equipment later stage, main spring base 7 and 2 interference fit of suspension skeleton guarantee the stability that main spring base 7 and suspension skeleton 2 combined through interference fit. Main spring base 7 all adopts the aluminum alloy material with suspension skeleton 2, and the aluminum alloy material compactness is poor, has great the power of exerting oneself of taking off under the condition of less pressure equipment power, deviates from the power and is greater than 12KN, guarantees that main spring base 7 can not deviate from. (3) Suspension skeleton 2 is equipped with support boss 22, and support boss 22 can support main spring base 7, thereby reduces main spring base 7's bottom buckle 11 and appears damaging because of the atress and lead to the part condition of inefficacy to appear. (4) The structure of the riveting bulge 23 is added on the suspension framework 2, and after the main spring base 7 and the suspension framework 2 are assembled, the riveting bulge is pressurized to deform and wrap the main spring base 7. More preferably, the riveting projection is divided into two parts, so that damage to one part is prevented, and the other part still meets the anti-drop riveting effect.
Referring to fig. 6, the hydraulic suspension system further includes a clip 11, the clip 11 is made of glass fiber reinforced polyamide (PA66+30GF), and the clip 11 is clipped to the lower end of the main spring base 7, so as to assemble the rubber main spring 3 with the flow channel assembly. Specifically, the buckle 11 includes a plurality of hooks 111, a first groove positioning column 112 and a second groove positioning column 113, the first groove positioning column 112 and the second groove positioning column 113 are located between two adjacent hooks 111, the buckle 111, the first groove positioning column 112 and the second groove positioning column 113 are integrally formed, and a positioning groove 114 is formed between the first buckle groove positioning column 112 and the second buckle groove positioning column 113. Preferably, the first groove positioning column 112 and the second groove positioning column 113 are higher than the hook 111 by 3mm and are raised 1.4mm higher than the boundary of the main spring base 7, so as to prevent misassembly. In addition, buckle 11 except having the mistake proofing dress structure, a plurality of trip 111 and main spring base 7 cooperation have sufficient joint power in addition for buckle 11 is difficult for breaking away from, makes inside damping fluid not leak outward under each operating mode of whole car.
Referring to fig. 7, the bracket arm 3 adopts a weight reduction structure design, a plurality of grooves 31 are formed in the bracket arm 3, wedge-shaped protrusions are arranged on the side faces of the bracket arm 3 and can be clamped into the inner core of the main spring, and the bracket arm 3 can be guaranteed to have good strength and reduce the weight of the bracket arm 3. In addition, in order to avoid liquid remaining in the bracket arm 3, a plurality of liquid outlets 32 are arranged at the lowest point of the bracket arm 3; in order to facilitate the assembling and positioning, a positioning protrusion 33 is provided on the bottom surface of the bracket arm 3, the size of the positioning protrusion 33 matches the size of the assembled product, and preferably, the gap between the side surface of the positioning boss 33 and the assembled product is 0.5 mm.
In addition, in the prior art, the upper flow passage plate 81 and the lower flow passage plate 82 are usually connected together by using a snap. At this time, a gap exists between the inertia channel 13 and the decoupling film 4, so that the damping fluid 14 performs a play between the inertia channel 13 and the decoupling film 4 to form a striking sound. Therefore, in the application, the upper flow channel plate 81 and the lower flow channel plate 82 are welded, the space where the inertia channel 13 and the decoupling film 4 are located is completely sealed, and the impact abnormal sound of the upper flow channel plate 8 and the lower flow channel plate 10 is reduced.
Referring to fig. 8, before welding, the upper flow channel plate 81 and the lower flow channel plate 82 need to be positioned first, in this embodiment, the upper flow channel plate 81 and the lower flow channel plate 82 are arranged from top to bottom, and the two are positioned by adopting a combination of a wedge-shaped positioning 83 structure and a circular hole positioning 84. In order to ensure the positioning accuracy, a pin positioning 85 mode is added at the center of the runner upper plate 81 and the runner lower plate 82. After the runner upper plate 81 and the runner lower plate 82 are positioned, the runner upper plate 81 and the runner lower plate 82 are welded in an ultrasonic welding mode, the runner assembly 8 and the main spring base 7 are assembled after welding, in order to avoid assembly reversal and product assembly failure, a groove is formed in the outer side of the runner assembly 8, a protrusion is formed in the inner side of the main spring base 7, positioning is performed through the groove and the protrusion, and the runner assembly 8 is assembled on the main spring base 7. In addition, the groove design on the outer side of the flow channel assembly 8 also ensures that the space formed by the circular positioning (not shown) of the flow channel assembly 8 is matched with the corresponding position of the main spring base 7 to install the liquid sealing bead 9.
Referring to fig. 9, when the upper flow channel plate 81 and the lower flow channel plate 82 are welded, if the pipe wall of the cavity formed by only closing the upper flow channel plate 81 and the lower flow channel plate 82 and the positioning of the pin shaft are used, the damping liquid 14 can only be prevented from leaking, but when the hydraulic mount vibrates at a frequency higher than 25Hz, the decoupling film 4 and the damping liquid 13 start to work in the flow channel assembly 8, so that the upper flow channel plate 81 and the lower flow channel plate 82 collide with each other during the running of the vehicle, and meanwhile, a gap is formed between the upper flow channel plate 81 and the lower flow channel plate 82, so that the damping value and the peak frequency are reduced, and the driving feeling of the whole vehicle is reduced. Therefore, in addition to welding the pipe wall of the cavity formed by the upper flow channel plate 81 and the lower flow channel plate 82 and the pin shaft positioning part, the pipe wall of the inertia channel 10 and the decoupling channel of the upper flow channel plate 81 and the lower flow channel plate 82 need to be welded. In addition, in order to ensure firm welding, the joint surface of the flow channel upper plate 81 and the flow channel lower plate 82 adopts a step assembly and combination mode, a bulge 85 with the height of 0.2mm and the thickness of 0.2mm is required to be added at the pipe wall position of the separation inertia channel 10 and the decoupling channel formed by the flow channel upper plate 81 and the flow channel lower plate 82 and the pin shaft positioning position, referring to fig. 10, the added bulge 85 is melted at high temperature, so that a good bonding and sealing effect is achieved, and the damping value of the suspension device is further improved. "
In order to install the hydraulic suspension system in a vehicle frame or a vehicle power assembly, a metal nesting sleeve 1 is further embedded in a suspension framework 2 of the hydraulic suspension device, and the metal nesting sleeve 1 is made of steel. In this embodiment, referring to fig. 11(a), the metal nest 1 is in a tooth structure, and the metal nest 1 is in interference fit with the suspension framework 2 to prevent autorotation. More specifically, the metal nest 1 adopts a reducing structure, and the reducing structure can increase the assembling and fitting area. Referring to fig. 11(b), the radius R1 of the inner circular hole of the metal insert 1 is 8mm, the radius R2 of the top is 13.5mm, the radius R3 of the bottom end surface is 17mm, the height H is 18mm, the radius of the mounting hole corresponding to the suspension framework 2 is 12.5mm, and the metal insert 1 and the suspension framework 2 are in interference fit, so that the problem of separation after assembly can be effectively prevented; the metal nest 1 is fixed in a frame or a power assembly by adopting a standard specification M12 bolt, and the fit between the metal nest 1 and the space assembly surface of the frame or the power assembly of the vehicle can be axially adjusted by the fastening force of the bolt, so that the assembly height can be conveniently adjusted. In the prior art, the suspension framework is usually installed in a frame or a vehicle power assembly by adopting screws, the screws are connected in a rigid link, and the problem that the suspension framework is not attached to the vehicle body due to the influence of assembly and manufacturing tolerance factors can be caused. The metal nesting 1 is adopted in the application, and the metal nesting 1 is tightly attached to the metal nesting 1 due to the deformation of the metal nesting.
The application also comprises a vehicle, wherein the vehicle is provided with the integral type hydraulic suspension device for laterally pressing the suspension framework, and the suspension framework in the integral type hydraulic suspension device for laterally pressing the suspension framework can be arranged on a frame of the vehicle or a power assembly of the vehicle.
The working principle of the hydraulic suspension in the application is as follows: when the main spring of the hydraulic suspension rubber is subjected to dynamic load and moves up and down, a pumping action similar to that of a piston is generated. When the hydraulic suspension device is excited by low frequency and large amplitude (1-50 Hz, 1-2 mm), the displacement amplitude of the decoupling film is large, and the decoupling film hardly acts when reaching the upper limit position and the lower limit position. When the main rubber spring is in a compressed state, the volume of the upper liquid chamber is reduced, the pressure in the chamber is increased, and liquid (damping liquid) is forced to be pressed into the lower liquid chamber through an inertia channel in the flow channel assembly; when the main rubber spring is in a stretching state, the volume of the upper liquid chamber is increased, the pressure in the chamber is reduced, and the liquid in the lower liquid chamber is sucked into the upper liquid chamber through the inertia channel in the flow channel assembly. Thus, the liquid flows back and forth between the upper and lower liquid chambers through the inertial passage. When the liquid flows through the inertia channel, because the inertia of the liquid in the inertia channel is large, a large amount of energy is lost at the inlet and the outlet of the inertia channel for overcoming the inertia of the liquid in the inertia channel, so that the vibration energy of the hydraulic suspension device can be well dissipated, and the aim of damping the vibration is fulfilled. When the excitation displacement is high frequency and small amplitude (50-200 Hz, 0.05-0.2 mm), the dynamic response of the liquid in the inertia channel gradually attenuates, the flow tends to stop, mainly the decoupling film moves at high speed in the free stroke, and actually the decoupling film can be understood as stirring the liquid, so that the dynamic stiffness of the suspension can be reduced to a certain extent, and the effect of reducing the dynamic stiffness of the hydraulic suspension under the excitation of high frequency and small amplitude is achieved, therefore, the vibration isolation performance of the suspension is improved.
The hydraulic suspension of this application has following advantage:
(1) lightweight
1) The part weight that comprises metal nest 1, suspension skeleton 2 is only 993g, and suspension skeleton 2 is integral aluminum alloy casting shaping, and product size precision can be controlled within 0.3mm to promote the assembly precision in vehicle cabin, reduce the degree of difficulty to the whole car performance timing in later stage.
2) The bracket arm 3 is formed by casting aluminum alloy, the weight of a product is only 800g, the bracket arm 3 is optimized in a general mode on the premise of ensuring the strength, redundant structures are eliminated, and the overall weight is reduced.
3) The runner upper plate 81, the runner lower plate 82 and the buckle 11 are made of engineering plastics (PA66+30GF), the weight of the runner is reduced by one third compared with that of an aluminum alloy product, and the runner has the characteristics of low abrasion, high strength, high mode and silence of the engineering plastics and can reduce the generation of structural abnormal sound.
(2) The suspension framework 2 is integrally cast, so that the dimensional precision of a product is improved
The cylindrical rubber main spring assembly is laterally pressed, the suspension framework 2 is formed by adopting an integral casting process, the assembly size precision of the suspension framework 2 can be improved to be controlled within 0.3mm, and the modal and the strength of the suspension framework 2 can meet the design requirement of the whole vehicle.
(3) Adopt metal insert 1 to be convenient for space installation face to adjust and absorb manufacturing tolerance
Adopt metal insert 1 and suspension skeleton 2 to be interference fit, but through the laminating of bolt fastening power axial adjustment and space assembly face, absorb manufacturing tolerance, promote the assembly performance.
(4) Lateral press-fitting process for main spring base 7 and suspension framework 2
The lateral press-fitting process is carried out on the premise of integral casting of the suspension framework 2, and mainly takes the low elastic central point of the design requirement of the whole vehicle, the stress of the suspension perpendicular to the ground and the lateral releasing force into consideration. In order to improve the stress of the suspension in the direction vertical to the ground, the suspension framework 2 is structurally provided with positioning bulges and supporting bulges, so that the suspension can still ensure the framework to be intact under the action of a 40KN force value vertical to the ground. For promoting suspension side direction and take off power, suspension skeleton 2 structurally increases the direction arch and supplementary anti-disengagement structure riveting arch, can guarantee that the side direction atress increases to 12KN still can not appear deviating from the inefficacy problem.
(5) By improving the structure and the assembly process of the runner assembly 8, the abnormal noise of the runner is reduced by eliminating high-frequency vibration
(6) Positioning design of buckle 11 and main spring base 7
The positioning groove 114 on the buckle 11 is matched with the protrusion of the main spring base 7 for use, so that the assembly and the positioning are convenient, and the problem of defective product outflow is effectively solved by controlling the sizes of the first groove positioning column 112 and the second groove positioning column 113.
The application relates to a bright spot and an effect of a hydraulic suspension
(1) The device has the advantages of light weight, low cost, high production efficiency, obvious assembly positioning structure and convenient manufacture;
(2) the metal insert is added, the assembly performance of the product is improved, and the manufacturing tolerance of the absorbable suspension and the vehicle body is controlled by the structural size of the metal insert, so that the problem of insert falling off is avoided;
(3) by adopting the lateral press-fitting process, the position of the elastic central point of the suspension can be changed by adjusting the matching size of the integral type aluminum alloy framework and the main spring assembly, and the arrangement requirement of the elastic central point of the whole vehicle can be met. The method has short modification period and the main spring structure is not changed.
(4) The structural design of the suspension framework and the main spring base can improve the suspension stress capacity, and the problem of lateral separation when the whole vehicle runs is avoided;
(5) the upper runner plate and the lower runner plate in the hydraulic suspension adopt an ultrasonic welding process, and the space formed by the decoupling film and the runner component is independent from the space of the inertial channel by reserving welding protrusions on the upper runner plate, and the upper runner plate and the lower runner plate are adhered and fastened, so that the problem of high-frequency abnormal sound is solved.
(6) The runner upper plate and the runner lower plate, the runner assembly and the main spring base, and the buckle and the main spring base adopt positioning structures, so that the assembly performance is improved, and the manufacture and assembly failure is avoided.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are all described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same and similar between the embodiments may be referred to each other.
The integral type hydraulic suspension assembly for laterally pressing and assembling the suspension framework and the vehicle are introduced in detail, specific examples are applied in the description to explain the principle and the implementation mode of the integral type hydraulic suspension assembly, and the description of the embodiments is only used for helping to understand the method and the core idea of the integral type hydraulic suspension assembly; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. The utility model provides an integral suspension skeleton side direction pressure equipment hydraulic suspension device which characterized in that includes:
the suspension framework (2), the suspension framework (2) is of an integral structure, and the suspension framework (2) is provided with a cavity (20) which is open in the lateral direction;
the rubber main spring assembly comprises a main spring inner core (5), a rubber main spring (6) and a main spring base (7), the main spring inner core (5) and the rubber main spring (6) are combined into a whole through a vulcanization process, and the rubber main spring assembly is laterally press-mounted in a cavity (20) of the suspension framework (2) through the main spring base (7);
the supporting arm (3) is embedded into the rubber main spring assembly.
2. The integral type suspension skeleton lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein two side walls of the cavity (20) are respectively provided with a positioning protrusion (21), the side wall of the main spring base (7) is provided with a positioning groove (71) matched with the positioning protrusion (21), and the positioning protrusion (21) is embedded in the positioning groove (71).
3. The integral type suspension framework lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein the side surface of the main spring base (7) is further provided with a guide protrusion (72), and the included angle between the guide protrusion (72) and the horizontal plane is 1 degree.
4. The integral type suspension framework lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein two side walls of the cavity (20) are respectively provided with a supporting boss (22).
5. The integral type suspension skeleton lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein riveting protrusions (23) are respectively provided on two side walls of the cavity (20).
6. The integral type suspension framework lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein a buckle (11) is clamped at the bottom of the main spring base (7), the buckle (11) comprises a plurality of clamping hooks (111), a first groove positioning column (112) and a second groove positioning column (113), the first groove positioning column (112) and the second groove positioning column (113) are located between two adjacent clamping hooks (111), a positioning groove (114) is formed between the first groove positioning column (112) and the second groove positioning column (113), and the plurality of clamping hooks (111), the first groove positioning column (112) and the second groove positioning column (113) are integrally formed.
7. The integral type suspension skeleton lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein the rubber main spring assembly further comprises a flow channel assembly (8), and the flow channel assembly (8) is positioned in a containing space surrounded by the suspension skeleton (2) and the rubber main spring assembly.
8. The integral type hydraulic suspension device for the lateral press-fitting of the suspension framework, as claimed in claim 7, wherein the flow channel assembly (8) comprises an upper flow channel plate (81) and a lower flow channel plate (82), the upper flow channel plate (81) and the lower flow channel plate (82) are welded after being positioned, and the upper flow channel plate (81) and the lower flow channel plate (82) are positioned in one or more of a wedge-shaped positioning manner (83), a circular hole positioning manner (84) and a pin shaft positioning manner (85).
9. The integral type suspension framework lateral press-fitting hydraulic suspension device as claimed in claim 1, wherein a metal nesting sleeve (1) is embedded in the upper left corner of the suspension framework (2), the metal nesting sleeve is of a reducing structure and/or a tooth structure, and the metal nesting sleeve (1) is in interference fit with the suspension framework (2).
10. A vehicle provided with an integrated suspension frame side-mounted hydraulic suspension device as claimed in any one of claims 1-9, wherein the suspension frame (2) is mounted on a frame of the vehicle or a powertrain of the vehicle.
CN202011390300.7A 2020-12-01 2020-12-01 Integral type suspension framework lateral press-fitting hydraulic suspension device and vehicle Pending CN114571980A (en)

Priority Applications (2)

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CN202011390300.7A CN114571980A (en) 2020-12-01 2020-12-01 Integral type suspension framework lateral press-fitting hydraulic suspension device and vehicle
PCT/CN2021/134523 WO2022116975A1 (en) 2020-12-01 2021-11-30 Hydraulic suspension apparatus having integral suspension framework laterally pressed, and vehicle

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