CN113653761B - Engine hydraulic suspension system and method for realizing suspension vibration resistance by using same - Google Patents

Engine hydraulic suspension system and method for realizing suspension vibration resistance by using same Download PDF

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CN113653761B
CN113653761B CN202110944726.0A CN202110944726A CN113653761B CN 113653761 B CN113653761 B CN 113653761B CN 202110944726 A CN202110944726 A CN 202110944726A CN 113653761 B CN113653761 B CN 113653761B
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main
vibration
hydraulic suspension
inertia channel
engine
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CN113653761A (en
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郑贵庆
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Zibo Geerman Machinery Co.,Ltd.
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Zibo Vocational Institute
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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
    • 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
    • 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
    • F16F15/022—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 dampers and springs in combination
    • 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)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

The invention relates to the technical field of engine protection, in particular to an engine hydraulic suspension system and a method for realizing suspension vibration resistance by using the same, wherein the system comprises three hydraulic suspension mechanisms, wherein two hydraulic suspension mechanisms are symmetrically arranged on two sides of the front end above an engine assembly, a third hydraulic suspension mechanism is arranged in the middle section of the rear end above the engine assembly, the three hydraulic suspension mechanisms are distributed in an isosceles triangle-shaped three-point support mode to realize the support of the engine assembly, and the three hydraulic suspension mechanisms are fixedly bolted with a vehicle frame at the top of the hydraulic suspension mechanisms and the engine assembly at the bottom of the hydraulic suspension mechanisms respectively through connecting pieces; the system adopts three hydraulic suspension mechanisms, can effectively play a role in efficiently damping the vibration of the vehicle and the engine assembly under various working conditions, and can effectively realize the effective dynamic and static load support of the engine assembly.

Description

Engine hydraulic suspension system and method for realizing suspension vibration resistance by using same
Technical Field
The invention relates to the technical field of engine protection, in particular to an engine hydraulic suspension system and a method for realizing suspension vibration resistance by using the hydraulic suspension system.
Background
The engine, which is a core component of a vehicle, can convert heat energy of gasoline (diesel oil) into mechanical energy by expanding gas after combustion in a sealed cylinder to drive a piston to do work. Therefore, the engine needs to be protected during installation, and a suspension system is usually adopted to support the engine so as to reduce and control the transmission of engine vibration at present.
The suspension system exists as a part for connecting the power assembly and the vehicle body, and mainly has the main functions of supporting the power assembly of the engine, reducing the influence of the vibration of the power assembly on the whole vehicle and limiting the total shaking amount of the power assembly, wherein the performance of the suspension system depends on the reduction and improvement degree of the noise, vibration and sound vibration roughness performance of the whole vehicle.
Since the engine itself is an internal vibration source and also suffers from various vibration disturbances from the outside, causing damage to components and riding discomfort, etc., a suspension system is provided to minimize the transmission of engine vibrations to the support system.
Vehicle suspension systems are generally classified into pure rubber suspensions and hydraulic suspensions. The pure rubber suspension consists of a rubber bushing and a bracket, has relatively poor vibration damping effect on an engine assembly, and is generally used more on some low-end vehicles. The hydraulic suspension is formed by filling special liquid into the interior of the rubber main spring and a certain structure through parts such as a runner plate, a decoupling sheet, a leather cup and the like.
The suspension damping effect of present hydraulic suspension generally is stronger than pure gluey suspension, has certain advantage, but it still has the problem relatively poor at the damping effect adjustability in complicated road conditions, the low-speed use of carrying the operating mode, consequently, the whole anti vibration effect of car under the complicated road conditions and with the user demand still have the not enough problem of matching degree.
Therefore, the invention provides the engine hydraulic suspension system which is compatible with vibration reduction and support and can effectively improve the overall running comfort of a vehicle, and the engine hydraulic suspension system is used for better solving the problems in the prior art.
Disclosure of Invention
In order to solve one of the technical problems, the invention adopts the technical scheme that: the engine hydraulic suspension system comprises three hydraulic suspension mechanisms, wherein the three hydraulic suspension mechanisms are fixedly bolted with a vehicle frame at the top and an engine assembly at the bottom of the three hydraulic suspension mechanisms respectively through connecting pieces; the engine assembly is characterized in that two hydraulic suspension mechanisms are symmetrically arranged on two sides of the front end above the engine assembly, a third hydraulic suspension mechanism is arranged in the middle section of the rear end above the engine assembly, and the three hydraulic suspension mechanisms are distributed in an isosceles triangle-shaped three-point support mode to support the engine assembly.
In any of the above schemes, preferably, the hydraulic suspension mechanism includes an upper connecting bolt, the upper connecting bolt is used for connecting a vehicle frame, a metal mandrel is fixedly connected to an outer side wall of a lower section of the upper connecting bolt, an annular groove is arranged on an outer side wall of the metal mandrel, a rubber main spring is fixedly and hermetically sealed and arranged on the periphery of the metal mandrel, an upper portion of the rubber main spring is hermetically and fixedly clamped on an outer side wall of the annular groove, a metal shell is arranged on a lower portion of the rubber main spring, a lower connecting bolt is arranged at the bottom of the metal shell, the lower connecting bolt is used for connecting to the engine assembly, the rubber main spring and the metal shell enclose a sealed space, and the sealed space is sequentially divided into an upper liquid chamber, a lower liquid chamber and an air chamber from top to bottom by a damping throttling component and a separation support; and the upper liquid chamber and the lower liquid chamber are filled with damping fluid.
In any of the above embodiments, preferably, the rubber main spring is fixed to the metal mandrel by integral welding.
In any of the above schemes, preferably, a metal outer shield is fixedly connected to an outer side wall of the rubber main spring, a connecting member is fixed to the metal outer shield, and a side connecting bolt for connecting with the engine body is arranged on the connecting member.
In any of the above schemes, preferably, adjacent hydraulic suspension mechanisms are respectively connected through a transition component, and the transition component can be used for matching with each hydraulic suspension mechanism to realize balance or relieve vibration of the engine assembly and the whole vehicle.
In any of the above schemes, preferably, two balancing liquid outlet pipes arranged at intervals are arranged on one side of the outer side wall of the lower liquid chamber, the inner end of each balancing liquid outlet pipe is communicated with the interior of the lower liquid chamber, and the outer end of each balancing liquid outlet pipe is communicated with the transition assembly at the corresponding position in a sealing manner; the transition assembly comprises main transition connecting pipes, two ends of each main transition connecting pipe are respectively connected with the balance liquid outlet pipes at corresponding positions, damping fluid is filled in each main transition connecting pipe, and a high-precision balance electric control valve is mounted on each main transition connecting pipe.
In any of the above schemes, preferably, the separation support member includes an inner support shell coaxially disposed on the inner side wall of the metal shell and tightly and fixedly connected with the inner side wall, the upper portion of the inner support shell is outwardly turned and fixedly clamped between the main rubber spring and the metal shell, the top of the inner support shell is tightly abutted to the bottom of the outer side of the main rubber spring, a communicating circular opening is disposed at the bottom of the inner support shell, a bottom membrane is disposed above the communicating circular opening, and the outer side of the bottom membrane is hermetically fixed on the inner support shell.
In any of the above aspects, preferably, the vertical section of the bottom film is a corrugated structure, and the upper part of the bottom film is a lower liquid chamber and the lower part of the bottom film is an air chamber.
In any of the above schemes, preferably, the damping throttling component is disposed above the bottom membrane at intervals, the damping throttling component includes a main inertia channel structure body, the main inertia channel structure body is composed of an upper inertia channel structure body and a lower inertia channel structure body which are disposed along the vertical direction and are relatively abutted, the outer side walls of the upper inertia channel structure body and the lower inertia channel structure body are both hermetically fixed on the inner side wall of the inner support shell, a main inertia channel is disposed on the main inertia channel structure body, the main inertia channel is spirally distributed from top to bottom, and the upper port and the lower port of the main inertia channel are respectively communicated with the upper liquid chamber and the lower liquid chamber.
In any of the above schemes, preferably, an auxiliary inertia channel is coaxially arranged on the main inertia channel structure body inside the main inertia channel, the auxiliary inertia channel is spirally distributed from top to bottom, and the upper and lower ports of the auxiliary inertia channel are respectively communicated with the upper liquid chamber and the lower liquid chamber.
In any of the above schemes, preferably, a decoupling disk is horizontally arranged in a middle installation cavity of a connection part of the upper inertia channel structure body and the lower inertia channel structure body, and a main compensation hole is arranged in the middle of the decoupling disk;
a micro electromagnetic flow control valve is arranged in the main compensation hole;
communicating holes communicated with the middle installation cavity are formed in the upper inertia channel structure body and the lower inertia channel structure body at the middle installation cavity.
In any of the above schemes, preferably, the decoupling disks on both sides of the periphery of the main compensation hole are respectively and symmetrically provided with an auxiliary compensation hole, and each auxiliary compensation hole is matched with the main compensation hole to realize damping compensation.
In any of the above schemes, preferably, an upper cone valve is arranged at the upper part of one of the auxiliary compensation holes, and the top of the upper cone valve is fixedly connected with the upper inertia channel structure body at the middle installation cavity through an upper rubber spring.
In any of the above schemes, preferably, a lower cone valve is arranged at the lower part of the other auxiliary compensation hole, and the top of the lower cone valve is fixedly connected with the lower inertia channel structure body at the middle installation cavity through a lower rubber spring.
The invention also provides a method for realizing suspension vibration resistance by using the hydraulic suspension system, wherein the hydraulic suspension system is the engine hydraulic suspension system, and is characterized in that: the method comprises the following steps:
s1: connecting the hydraulic suspension system with a vehicle frame and an engine assembly, and assembling the whole vehicle;
s2: the engine is started, and three hydraulic suspension mechanisms of the hydraulic suspension system are controlled to cooperate to realize primary vibration resistance on the engine assembly, so that the vibration amplitude of the engine is reduced;
the specific actions of the primary vibration resistance are as follows:
the rubber main spring initially reduces vibration transmitted by the engine and then preliminarily reduces the vibration;
the vibration left after the reduction is transmitted to the upper liquid chamber and the lower liquid chamber, and is damped under the action of the main inertia channel and the auxiliary inertia channel, so that the vibration reduction of the engine in an idling state is completed;
s3, the vehicle runs stably, and all the hydraulic suspension mechanisms are matched to realize secondary balance vibration reduction;
the secondary vibration resistance specifically acts as follows:
the main rubber spring is used for bearing the vertical and lateral static and dynamic loads of the engine power assembly;
the small vibration in the stable driving process is greatly reduced under the action of the rubber main spring;
damping vibration reduction is carried out on the small-amplitude residual vibration under the action of the main inertia channel and the auxiliary inertia channel;
s4, when the vehicle enters a complex road condition and enters a strong vibration state, the three hydraulic suspension mechanisms are matched and linked to realize three-level balance vibration reduction on the engine assembly and the whole vehicle;
the three-stage balance vibration reduction method specifically comprises the following steps:
the main rubber spring is used for bearing the vertical and lateral static and dynamic loads of the engine power assembly;
the strong vibration state in the complex road condition can not be greatly reduced under the action of the rubber main spring;
the large-amplitude residual vibration is transmitted to the upper liquid chamber and the lower liquid chamber and is subjected to damping vibration attenuation under the action of the main inertia channel and the auxiliary inertia channel;
meanwhile, under strong vibration, the internal damping fluid is forced to flow through the main compensation hole, the auxiliary compensation hole and the transition assembly to control the flow of the internal damping fluid to offset or weaken the vibration amplitude.
The main compensation hole is arranged and the electromagnetic flow control valve is arranged on the main compensation hole, so that the opening degree of the main compensation hole can be controlled in advance, and the suspension anti-vibration strength of the whole machine can be pre-adjusted in advance according to a subsequent road section needing to run;
in addition, an auxiliary compensation hole is arranged by matching with the main compensation hole, and the opening degree of the auxiliary compensation hole can realize the automatic expansion and contraction of the upper rubber spring and the lower rubber spring according to the current residual vibration state to realize the flow speed and the flow of the damping fluid from the auxiliary compensation hole, so that the self-adaptive damping vibration reduction is realized;
meanwhile, the invention also adopts a structure of double inertia channels, and can carry out damping vibration attenuation under the action of the main inertia channel matched with the auxiliary inertia channel, thereby greatly improving the damping vibration attenuation effect;
the spiral channel structure can further improve the damping effect from the structure of the spiral channel structure;
furthermore, three hydraulic suspension mechanism not only has the suspension damping effect alone here, can control opening and the aperture of each balanced automatically controlled valve as required between the three in addition and realize forming three hydraulic suspension mechanism a whole, damping fluid can realize the damping that flows each other between the three to reach the effect of the balanced damping of whole suspension, make whole damping effect more outstanding.
And S5, standing the engine hydraulic suspension system after the vehicle is shut down and stopped, and supporting the static load.
Compared with the prior art, the invention has the following beneficial effects:
1. the hydraulic suspension system of the engine has good comprehensive performance, and can effectively ensure the anti-vibration capability and simultaneously meet the stable supporting effect under the complex working condition.
2. The system adopts three hydraulic suspension mechanisms, can effectively play a role in efficiently damping the vibration of the vehicle and the engine assembly under various working conditions, and can effectively realize the effective dynamic and static load support of the engine assembly.
3. The damping initial parameters of each suspension mechanism of the system can be adjusted in advance, the operation is more convenient and humanized, and an operator can set and adjust the damping initial parameters in advance according to the driving habits and subsequent road conditions.
4. The three hydraulic suspension mechanisms of the system can be independently suspended and damped, and can be controlled to be communicated with each other according to requirements, so that the hydraulic suspension mechanisms are uniformly allocated, and reasonable and effective suspension adjustment under three-point support is guaranteed.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic top view of embodiment 1 of the present invention.
Fig. 2 is a schematic three-dimensional structure diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic three-dimensional structure diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic top view of embodiment 2 of the present invention.
Fig. 5 is a schematic sectional structure view of the present invention in a state where two hydraulic mount mechanisms are connected.
Fig. 6 is a schematic cross-sectional structural view of the hydraulic suspension mechanism of the present invention.
In the figure, 1, a hydraulic suspension mechanism; 2. an upper connecting bolt; 3. a metal mandrel; 4. an annular groove; 5. a rubber main spring; 6. a metal shell; 7. a lower connecting bolt; 8. a liquid feeding chamber; 9. a lower liquid chamber; 10. an air chamber; 11. a metal outer shield; 12. a connecting member; 13. a side connecting bolt; 14. a transition component; 15. balancing the liquid outlet pipe; 16. a main transition connection pipe; 17. a balanced electrically controlled valve; 18. an inner support shell; 19. a circular opening is communicated; 20. a base film; 21. an upper inertia track structure; 22. a lower inertia track structure; 23. a primary inertial channel; 24. a secondary inertial channel; 25. a cavity is arranged in the middle; 26. a decoupling plate; 27. a main compensation hole; 28. an electromagnetic flow control valve; 29. a communicating hole; 30. a secondary compensation hole; 31. an upper cone valve; 32. a rubber spring is arranged; 33. a lower cone valve; 34. a lower rubber spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-6:
example 1: the engine hydraulic suspension system comprises three hydraulic suspension mechanisms 1, wherein the three hydraulic suspension mechanisms 1 are respectively fixedly bolted with a vehicle frame at the top of the three hydraulic suspension mechanisms and an engine assembly at the bottom of the three hydraulic suspension mechanisms through connecting pieces; the engine assembly is characterized in that two hydraulic suspension mechanisms 1 are symmetrically arranged on two sides of the front end above the engine assembly, a third hydraulic suspension mechanism 1 is arranged in the middle section of the rear end above the engine assembly, and the three hydraulic suspension mechanisms 1 are distributed in an isosceles triangle-shaped three-point support mode to support the engine assembly.
The three suspension mechanisms are all hydraulic suspension mechanisms 1, the uniformity of three-point support can be guaranteed, triangular-fit suspension support can be effectively formed, and therefore the purpose of stable support is achieved.
In any of the above schemes, preferably, the hydraulic suspension mechanism 1 includes an upper connecting bolt 2, the upper connecting bolt 2 is used for connecting a vehicle frame, a metal spindle 3 is fixedly connected to an outer side wall of a lower section of the upper connecting bolt 2, an annular groove 4 is arranged on an outer side wall of the metal spindle 3, a rubber main spring 5 is fixed and hermetically sealed on the periphery of the metal spindle 3, an upper portion of the rubber main spring 5 is hermetically and fixedly clamped on an outer side wall of the annular groove 4, a metal shell 6 is arranged at a lower portion of the rubber main spring 5, a lower connecting bolt 7 is arranged at a bottom of the metal shell 6, the lower connecting bolt 7 is used for connecting to the engine assembly, the rubber main spring 5 and the metal shell 6 enclose a sealed space, and the sealed space is sequentially divided into an upper liquid chamber 8, a lower liquid chamber 9 and an air chamber 10 from top to bottom by a damping throttling component and a separation support; the upper liquid chamber 8 and the lower liquid chamber 9 are filled with damping fluid.
In any of the above embodiments, the rubber main spring 5 is preferably fixed to the metal mandrel 3 by integral welding.
In any of the above embodiments, it is preferable that a metal outer cover 11 is fixedly connected to an outer side wall of the rubber main spring 5, a connector 12 is fixed to the metal outer cover 11, and the connector 12 is provided with a side connecting bolt 13 for connecting to the engine body.
Example 2: example 1: the engine hydraulic suspension system comprises three hydraulic suspension mechanisms 1, wherein the two hydraulic suspension mechanisms 1 are symmetrically arranged at the two sides of the front end above an engine assembly, the third hydraulic suspension mechanism 1 is arranged at the middle section of the rear end above the engine assembly, the three hydraulic suspension mechanisms 1 are distributed in an isosceles triangle shape to support the engine assembly, and the three hydraulic suspension mechanisms 1 are respectively fixedly bolted with the vehicle frame at the top and the engine assembly at the bottom through connecting pieces 12.
The three suspension mechanisms are all hydraulic suspension mechanisms 1, the uniformity of three-point support can be guaranteed, triangular-fit suspension support can be effectively formed, and therefore the purpose of stable support is achieved.
In any of the above schemes, preferably, the hydraulic suspension mechanism 1 includes an upper connecting bolt 2, the upper connecting bolt 2 is used for connecting a vehicle frame, a metal spindle 3 is fixedly connected to an outer side wall of a lower section of the upper connecting bolt 2, an annular groove 4 is arranged on an outer side wall of the metal spindle 3, a rubber main spring 5 is fixed and hermetically sealed on the periphery of the metal spindle 3, an upper portion of the rubber main spring 5 is hermetically and fixedly clamped on an outer side wall of the annular groove 4, a metal shell 6 is arranged at a lower portion of the rubber main spring 5, a lower connecting bolt 7 is arranged at a bottom of the metal shell 6, the lower connecting bolt 7 is used for connecting to the engine assembly, the rubber main spring 5 and the metal shell 6 enclose a sealed space, and the sealed space is sequentially divided into an upper liquid chamber 8, a lower liquid chamber 9 and an air chamber 10 from top to bottom by a damping throttling component and a separation support; the upper and lower fluid chambers 8 and 9 are filled with damping fluid.
In any of the above embodiments, the rubber mainspring 5 is preferably fixed to the metal core 3 by integral welding.
In any of the above schemes, preferably, a metal outer cover 11 is fixedly connected to an outer side wall of the rubber main spring 5, a connecting piece 12 is fixed to the metal outer cover 11, and a side connecting bolt 13 for connecting with the engine body is arranged on the connecting piece 12.
The three upper connecting bolts 2 are connected with the vehicle frame, and the three lower connecting bolts 7 are connected with the engine assembly, so that the connection stability of the engine assembly can be ensured; in addition, the side connecting bolt 13 is additionally arranged, so that the firmness of the connection of the engine assembly can be further realized.
The metal mandrel 3 can firmly suspend the rubber main spring 5, and the connection safety is ensured because the metal mandrel 3 and the upper connecting bolt 2 are in a threaded connection state.
In any of the above solutions, it is preferable that adjacent hydraulic suspension mechanisms 1 are respectively connected through a transition component 14, and the transition component 14 may be used to cooperate with each hydraulic suspension mechanism 1 to achieve balance or to alleviate vibration of the engine assembly and the vehicle as a whole.
The transition assembly 14 can control the independence and connection between the adjacent hydraulic suspension mechanisms 1, and the control of the opening of the balance electric control valve 17 on the transition assembly 14 can realize the interconnection of a plurality of hydraulic suspension mechanisms 1.
In any of the above schemes, preferably, two balancing liquid outlets 15 arranged at intervals are arranged on one side of the outer side wall of the lower liquid chamber 9, the inner end of each balancing liquid outlet 15 is communicated with the interior of the lower liquid chamber 9, and the outer end of each balancing liquid outlet 15 is in sealed communication with the transition assembly 14 at the corresponding position; the transition assembly 14 comprises main transition connecting pipes 16, two ends of each main transition connecting pipe 16 are respectively connected with balance liquid outlet pipes 15 at corresponding positions, damping fluid is filled in each main transition connecting pipe 16, and a high-precision balance electric control valve 17 is mounted on each main transition connecting pipe 16.
The damping fluid is filled in the upper liquid chamber 8, the lower liquid chamber 9 and the main transition connecting pipe 16, so that the balance state of the interior of the main transition connecting pipe can be guaranteed in a normal state, and the volume of the cavity can be changed when vibration occurs, so that the vibration can be quickly reduced in the flowing state of the damping fluid.
In any of the above schemes, preferably, the separating and supporting member includes an inner supporting shell 18 coaxially disposed on the inner side wall of the metal shell 6 and abutted against and fixedly connected to the inner side wall, the upper portion of the inner supporting shell 18 is outwardly turned over and fixedly clamped between the main rubber spring 5 and the metal shell 6, the top of the inner supporting shell 18 abuts against the bottom of the outer side of the main rubber spring 5, a communicating circular opening 19 is disposed at the bottom of the inner supporting shell 18, a bottom film 20 is disposed above the communicating circular opening 19, and the outer sides of the bottom film 20 are hermetically fixed on the inner supporting shell 18.
The inner support shell 18 mainly plays a supporting role in cooperation with the metal shell 6, and the bottom membrane 20 has a certain deformation amount in a vibration state, so that the space of the lower liquid chamber 9 is changed, and vibration is reduced or counteracted by means of the flow of the damping fluid.
In any of the above solutions, it is preferable that the vertical cross section of the bottom film 20 is a corrugated structure, and the upper part of the bottom film 20 is a lower liquid chamber 9 and the lower part is an air chamber 10.
The corrugated structure is mainly used for realizing that the bottom film 20 can realize deformation in a larger range according to different vibration degrees, thereby more effectively controlling damping flow and vibration reduction feedback period and improving vibration reduction effect.
In any of the above schemes, preferably, the damping throttling component is disposed above the bottom membrane 20 at intervals, the damping throttling component includes a main inertia channel 23 structure, the main inertia channel 23 structure is composed of an upper inertia channel structure 21 and a lower inertia channel structure 22 which are disposed in a relatively abutting manner along an up-down direction, outer side walls of the upper inertia channel structure 21 and the lower inertia channel structure 22 are both fixed on an inner side wall of the inner support shell 18 in a sealing manner, the main inertia channel 23 structure is provided with a main inertia channel 23, the main inertia channel 23 is spirally distributed from top to bottom, and upper and lower ports of the main inertia channel 23 are respectively communicated with the upper liquid chamber 8 and the lower liquid chamber 9.
In any of the above schemes, preferably, an auxiliary inertia channel 24 is coaxially arranged on the main inertia channel 23 structure inside the main inertia channel 23, the auxiliary inertia channel 24 is spirally distributed from top to bottom, and the upper and lower ports of the auxiliary inertia channel 24 are respectively communicated with the upper liquid chamber 8 and the lower liquid chamber 9.
The double-channel structural design of the main inertia channel 23 and the auxiliary inertia channel 24 can better ensure the effect of damping fluid flow to realize vibration reduction, and the damping effect is more prominent when the damping fluid flow is arranged in a spiral shape to reduce vibration, so that the vibration reduction effect of the vibration adapting to high-strength is better.
In any of the above solutions, preferably, a decoupling disk 26 is horizontally arranged in the middle installation cavity 25 of the connection part of the upper inertia track structural body 21 and the lower inertia track structural body 22, and a main compensation hole 27 is arranged in the middle of the decoupling disk 26;
a miniature electromagnetic flow control valve 28 is arranged in the main compensation hole 27;
the main compensation hole 27 is mainly used in cooperation with the decoupling disc 26, and the opening degree of the electromagnetic flow control valve 28 arranged in the main compensation hole can be adjusted in advance according to needs and can be changed and adjusted according to needs, so that the using effects under different states can be guaranteed.
Communication holes 29 communicating with the center mounting cavity 25 are provided in the upper inertia track structure 21 and the lower inertia track structure 22 in the center mounting cavity 25.
In any of the above solutions, it is preferable that the decoupling discs 26 on both sides of the periphery of the main compensation hole 27 are respectively and symmetrically provided with an auxiliary compensation hole 30, and each auxiliary compensation hole 30 is matched with the main compensation hole 27 to realize damping compensation.
In any of the above solutions, preferably, an upper cone valve 31 is disposed at an upper portion of one of the secondary compensation holes 30, and a top portion of the upper cone valve 31 is fixedly connected to the upper inertia track structure body 21 at the middle installation cavity 25 through an upper rubber spring 32.
In any of the above schemes, preferably, a lower cone valve 33 is disposed at the lower part of the other auxiliary compensation hole 30, and the top of the lower cone valve 33 is fixedly connected with the lower inertia channel structure 22 at the middle installation cavity 25 through a lower rubber spring 34.
The main function of the auxiliary compensation hole 30 is to realize damping compensation by matching with the main compensation hole 27, and meanwhile, the upper rubber spring 32, the upper cone valve 31, the lower rubber spring 34 and the lower cone valve 33 are arranged in the auxiliary compensation hole 30 to form a structure capable of automatically adjusting the fluid flow opening, so that adaptive fluid flow speed can be realized in different vibration frequencies and amplitudes, and the damping effect is effectively improved.
The invention also provides a method for realizing suspension vibration resistance by using the hydraulic suspension system, wherein the hydraulic suspension system is the engine hydraulic suspension system, and the method comprises the following steps:
s1: connecting the hydraulic suspension system with a vehicle frame and an engine assembly, and assembling the whole vehicle;
s2: starting an engine, and controlling three hydraulic suspension mechanisms 1 of a hydraulic suspension system to cooperate to realize primary vibration resistance on an engine assembly and reduce the vibration amplitude of the engine;
the specific actions of the primary vibration resistance are as follows:
the rubber main spring 5 primarily reduces vibration transmitted by the engine and then primarily reduces the vibration;
the vibration left after the reduction is transmitted to the upper liquid chamber 8 and the lower liquid chamber 9, and damping vibration reduction is carried out under the action of the main inertia channel 23 and the auxiliary inertia channel 24, so that the vibration reduction of the engine in an idling state is completed;
s3, stably driving the vehicle, and realizing secondary balance vibration reduction by matching each hydraulic suspension mechanism 1;
the secondary vibration resistance specifically acts as follows:
the main rubber spring 5 can bear the vertical and lateral static and dynamic loads of the engine power assembly;
the small vibration in the stable driving process is greatly reduced under the action of the rubber main spring 5;
the small-amplitude residual vibration is damped under the action of the main inertia channel 23 and the auxiliary inertia channel 24;
s4, when the vehicle enters a complex road condition and enters a strong vibration state, the three hydraulic suspension mechanisms 1 are matched and linked to realize three-level balance vibration reduction on the engine assembly and the whole vehicle;
the three-stage balance vibration reduction comprises the following specific steps:
the main rubber spring 5 can bear the vertical and lateral static and dynamic loads of the engine power assembly;
the strong vibration state in the complex road condition can not be greatly reduced under the action of the rubber main spring 5;
the large-amplitude residual vibration can be transmitted to the upper liquid chamber 8 and the lower liquid chamber 9 and is subjected to damping vibration attenuation under the action of the main inertia channel 23 and the auxiliary inertia channel 24;
while strong vibration forces the internal damping fluid through the primary compensation orifice 27, the secondary compensation orifice 30, and the transition assembly 14 to control the internal damping fluid flow to cancel or attenuate the vibration amplitude.
The main compensation hole 27 is arranged and the electromagnetic flow control valve 28 is arranged on the main compensation hole, so that the opening degree of the main compensation hole 27 can be controlled in advance, and the suspension anti-vibration force of the whole machine can be pre-adjusted in advance according to a subsequent road section to be driven;
in addition, the auxiliary compensation hole 30 is also arranged in cooperation with the main compensation hole 27, and the opening degree of the auxiliary compensation hole 30 can realize the automatic expansion and contraction of the upper rubber spring 32 and the lower rubber spring 34 according to the current residual vibration state so as to realize the flow speed and the flow of the damping fluid from the auxiliary compensation hole 30, thereby realizing the self-adaptive damping vibration attenuation;
meanwhile, the invention also adopts a double-inertia channel structure, and can perform damping vibration attenuation under the action of the main inertia channel 23 and the auxiliary inertia channel 24, thereby greatly improving the damping vibration attenuation effect;
the spiral channel structure can further improve the damping effect from the structure of the spiral channel structure;
furthermore, three hydraulic suspension mechanism 1 not only has the suspension damping effect alone here, can control opening and the aperture of each balanced automatically controlled valve 17 as required between the three in addition and realize forming three hydraulic suspension mechanism 1 a whole, damping fluid can realize the damping that flows each other between the three to reach the effect of the balanced damping of whole suspension, make whole damping effect more outstanding.
And S5, standing the engine hydraulic suspension system after the vehicle is shut down and stops, and supporting the static load.
When the system is normally used, an operator can control and adjust the opening and closing or the opening of the balance electric control valve 17 and the electromagnetic flow control valve 28 in advance to realize the presetting of the suspension vibration attenuation and the supporting effect of the whole system, certainly, the presetting can also be carried out when the vehicle is started at each subsequent time, and the adjustability and the whole effect of the whole system are better.
The hydraulic suspension system has good comprehensive performance, and can effectively ensure the anti-vibration capability and simultaneously meet the stable supporting effect under the complex working condition; the system adopts three hydraulic suspension mechanisms 1, can effectively play a role in efficiently damping vibration of a vehicle and an engine assembly under various working conditions, and can effectively realize effective dynamic and static load support of the engine assembly; the vibration reduction initial parameters of each suspension mechanism can be adjusted in advance, the operation is more convenient and humanized, and an operator can set and adjust the vibration reduction initial parameters in advance according to the driving habits and subsequent road conditions; the three hydraulic suspension mechanisms 1 of the system can be independently suspended and damped, and can be controlled to be communicated with each other according to requirements, so that the hydraulic suspension mechanisms 1 are uniformly allocated, and reasonable and effective suspension adjustment under three-point support is guaranteed.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or substitutions do not cause the essential features of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and the technical solutions are all covered in the scope of the claims and the specification of the present invention; it will be apparent to those skilled in the art that any alternative modifications or variations to the embodiments of the present invention may be made within the scope of the present invention.
The present invention is not described in detail, but is known to those skilled in the art.

Claims (3)

1. Engine hydraulic suspension system, its characterized in that: the three hydraulic suspension mechanisms are fixedly bolted with a vehicle frame at the top and an engine assembly at the bottom through connecting pieces respectively; the hydraulic suspension mechanisms are symmetrically arranged on two sides of the front end above the engine assembly, the middle section of the rear end above the engine assembly is provided with a third hydraulic suspension mechanism, the three hydraulic suspension mechanisms are distributed in an isosceles triangle three-point support mode to support the engine assembly, adjacent hydraulic suspension mechanisms are connected through transition components, and the transition components can be used for being matched with the hydraulic suspension mechanisms to balance or relieve the vibration of the whole engine assembly and a vehicle;
the hydraulic suspension mechanism comprises an upper connecting bolt, the upper connecting bolt is used for connecting a vehicle frame, a metal mandrel is fixedly connected to the outer side wall of the lower section of the upper connecting bolt, an annular groove is formed in the outer side wall of the metal mandrel, a rubber main spring is fixedly and hermetically sleeved on the periphery of the metal mandrel, the upper portion of the rubber main spring is hermetically and fixedly clamped on the outer side wall of the annular groove, a metal shell is arranged at the lower portion of the rubber main spring, a lower connecting bolt is arranged at the bottom of the metal shell and is used for being fixedly connected to the engine assembly, a sealed space is defined by the rubber main spring and the metal shell, and the sealed space is sequentially divided into an upper liquid chamber, a lower liquid chamber and an air chamber from top to bottom by a damping throttling component and a separation support piece; the upper liquid chamber and the lower liquid chamber are filled with damping fluid; the rubber main spring is integrally welded and fixed on the metal mandrel; the outer side wall of the rubber main spring is fixedly connected with a metal outer shield, a connecting piece is fixed on the metal outer shield, and a side connecting bolt used for being connected with the engine body is arranged on the connecting piece;
the separating and supporting piece comprises an inner supporting shell which is coaxially arranged on the inner side wall of the metal shell and is abutted and fixedly connected with the inner side wall of the metal shell, the upper part of the inner supporting shell is outwards turned outwards and is fixedly clamped between the rubber main spring and the metal shell, the top of the inner supporting shell is abutted with the outer bottom of the rubber main spring, a communicating round opening is formed in the bottom of the inner supporting shell, a bottom membrane is arranged above the communicating round opening, and the outer bottom of the bottom membrane is hermetically fixed on the inner supporting shell;
the damping throttling components are arranged above the bottom membrane at intervals and comprise a main inertia channel structure body, the main inertia channel structure body consists of an upper inertia channel structure body and a lower inertia channel structure body which are relatively and tightly abutted along the vertical direction, the outer side walls of the upper inertia channel structure body and the lower inertia channel structure body are hermetically fixed on the inner side wall of the inner support shell, a main inertia channel is arranged on the main inertia channel structure body and is spirally distributed from top to bottom, and the upper port and the lower port of the main inertia channel are respectively communicated with an upper liquid chamber and a lower liquid chamber;
an auxiliary inertia channel is coaxially arranged on the main inertia channel structure body on the inner side of the main inertia channel, the auxiliary inertia channel is spirally distributed from top to bottom, and the upper end port and the lower end port of the auxiliary inertia channel are respectively communicated with the upper liquid chamber and the lower liquid chamber;
a decoupling disc is horizontally arranged in a middle mounting cavity of a connecting part of the upper inertia channel structure body and the lower inertia channel structure body, and a main compensation hole is arranged in the middle of the decoupling disc; a micro electromagnetic flow control valve is arranged in the main compensation hole; communicating holes communicated with the middle mounting cavity are formed in the upper inertia channel structure body and the lower inertia channel structure body at the middle mounting cavity; auxiliary compensation holes are symmetrically formed in the decoupling discs on two sides of the periphery of the main compensation hole respectively, and the auxiliary compensation holes are matched with the main compensation hole to realize damping compensation; an upper cone valve is arranged at the upper part of one auxiliary compensation hole, and the top of the upper cone valve is fixedly connected with an upper inertia channel structure body at the middle installation cavity through an upper rubber spring; a lower cone valve is arranged at the lower part of the other auxiliary compensation hole, and the top of the lower cone valve is fixedly connected with a lower inertia channel structure body at the middle installation cavity through a lower rubber spring;
the method for realizing the suspension anti-vibration by utilizing the hydraulic suspension system comprises the following steps:
s1: connecting the hydraulic suspension system with a vehicle frame and an engine assembly, and assembling the whole vehicle;
s2: the engine is started, and three hydraulic suspension mechanisms of the hydraulic suspension system are controlled to be matched to realize primary vibration resistance on the engine assembly, so that the vibration amplitude of the engine is reduced;
the specific actions of the primary vibration resistance are as follows: the rubber main spring initially reduces vibration transmitted by the engine and then preliminarily reduces the vibration; the residual vibration after being reduced is transmitted to the upper liquid chamber and the lower liquid chamber, and damping vibration reduction is carried out under the action of the main inertia channel matched with the auxiliary inertia channel, so that the vibration reduction of the engine in an idling state is completed;
s3, the vehicle runs stably, and all the hydraulic suspension mechanisms are matched to realize secondary balance vibration reduction;
the specific actions of the secondary balance vibration damping are as follows: the main rubber spring is used for bearing the vertical and lateral static and dynamic loads of the engine power assembly; the small vibration in the stable running process is greatly reduced under the action of the rubber main spring; the small-amplitude residual vibration is damped under the action of the main inertia channel and the auxiliary inertia channel;
s4, when the vehicle enters a complex road condition and enters a strong vibration state, the three hydraulic suspension mechanisms are matched and linked to realize three-level balance vibration reduction on the engine assembly and the whole vehicle;
the three-stage balance vibration reduction method specifically comprises the following steps: the main rubber spring is used for bearing the vertical and lateral static and dynamic loads of the engine power assembly; the strong vibration state in the complex road condition can not be greatly reduced under the action of the rubber main spring; the large-amplitude residual vibration is transmitted to the upper liquid chamber and the lower liquid chamber and is subjected to damping vibration attenuation under the action of the main inertia channel and the auxiliary inertia channel; meanwhile, under strong vibration, the internal damping fluid is forced to flow through the combined action of the main compensation hole, the auxiliary compensation hole and the transition assembly to control the flow of the internal damping fluid to offset or weaken the vibration amplitude;
and S5, standing the engine hydraulic suspension system after the vehicle is shut down and stops, and supporting the static load.
2. The engine hydraulic mount system of claim 1, wherein: two balance liquid outlet pipes are arranged on one side of the outer side wall of the lower liquid chamber at intervals, the inner end of each balance liquid outlet pipe is communicated with the inner part of the lower liquid chamber, and the outer ends of the balance liquid outlet pipes are communicated with the transition assemblies at corresponding positions in a sealing manner; the transition assembly comprises a main transition connecting pipe, the two ends of the main transition connecting pipe are respectively connected with the balance liquid outlet pipes corresponding to the positions, damping fluid is filled in the main transition connecting pipe, and a high-precision balance electric control valve is installed on the main transition connecting pipe.
3. The engine hydraulic mount system of claim 2, wherein: the vertical section of basement membrane is the ripple type structure, the upper portion of basement membrane is down the liquid chamber, and the lower part is the air chamber.
CN202110944726.0A 2021-08-17 2021-08-17 Engine hydraulic suspension system and method for realizing suspension vibration resistance by using same Active CN113653761B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038968A (en) * 1933-12-18 1936-04-28 Gen Motors Corp Engine mounting
US4679759A (en) * 1984-12-24 1987-07-14 Ford Motor Company Assembly for mounting a vibrating body
US4784378A (en) * 1985-11-14 1988-11-15 Ford Motor Company Vibrating body mounting assembly
US4813513A (en) * 1986-12-04 1989-03-21 Automobiles Peugeot Suspension device for the body and the power unit of a motor vehicle
CN201090655Y (en) * 2007-10-15 2008-07-23 宁波拓普减震***股份有限公司 Movable decoupling diaphragm type crash-proof hydraulic pressure damp mounts
CN102829127A (en) * 2012-09-20 2012-12-19 重庆大学 Magneto-rheological damper of automobile engine suspension system
CN110630677A (en) * 2019-09-23 2019-12-31 安徽誉林汽车部件有限公司 Engine hydraulic suspension structure with double inertia channels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038968A (en) * 1933-12-18 1936-04-28 Gen Motors Corp Engine mounting
US4679759A (en) * 1984-12-24 1987-07-14 Ford Motor Company Assembly for mounting a vibrating body
US4784378A (en) * 1985-11-14 1988-11-15 Ford Motor Company Vibrating body mounting assembly
US4813513A (en) * 1986-12-04 1989-03-21 Automobiles Peugeot Suspension device for the body and the power unit of a motor vehicle
CN201090655Y (en) * 2007-10-15 2008-07-23 宁波拓普减震***股份有限公司 Movable decoupling diaphragm type crash-proof hydraulic pressure damp mounts
CN102829127A (en) * 2012-09-20 2012-12-19 重庆大学 Magneto-rheological damper of automobile engine suspension system
CN110630677A (en) * 2019-09-23 2019-12-31 安徽誉林汽车部件有限公司 Engine hydraulic suspension structure with double inertia channels

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Effective date of registration: 20231030

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Patentee after: Zibo Geerman Machinery Co.,Ltd.

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Denomination of invention: Hydraulic suspension system of engine and the method of using it to achieve anti vibration of suspension

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