CN113266664A - Hydraulic suspension and suspension system comprising same - Google Patents
Hydraulic suspension and suspension system comprising same Download PDFInfo
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- CN113266664A CN113266664A CN202010094877.7A CN202010094877A CN113266664A CN 113266664 A CN113266664 A CN 113266664A CN 202010094877 A CN202010094877 A CN 202010094877A CN 113266664 A CN113266664 A CN 113266664A
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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
- 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
- F16F15/0237—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 involving squeeze-film damping
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- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The invention relates to the technical field of suspension system manufacturing, and discloses a hydraulic suspension, which comprises a base, a cover plate and a decoupling film, wherein the base is provided with a base seat; the base is provided with a first groove and a second groove, and a first through hole penetrates between the bottom of the first groove and the bottom of the second groove; the cover plate covers the first groove and is provided with a second through hole; the decoupling film comprises a film body, a first convex column and a second convex column, the film body is arranged in the first groove, one end of the first convex column extends out of the first groove through the second through hole, and one end of the second convex column extends into the second groove through the first through hole; the first convex column is provided with a first flange, and the second convex column is provided with a second flange. Based on above-mentioned structure, the diaphragm is restricted by first flange and second flange in certain deformation range, can not pat apron and base under the operating mode of big amplitude, consequently can not produce the abnormal sound, can improve the quality of car. In addition, the invention also provides a suspension system which has the advantages of no abnormal sound, good performance, high quality and the like.
Description
Technical Field
The invention relates to the technical field of suspension systems, in particular to a hydraulic suspension and a suspension system comprising the same.
Background
Decoupling film formula hydraulic suspension generally is used for shock insulation and shock attenuation of automobile power assembly, and its advantage lies in: when the amplitude of the power assembly is small, for example, when a vehicle runs on a smooth road surface, the volumes of the two liquid chambers of the decoupling film type hydraulic suspension are changed slightly, at the moment, the liquid does not flow back and forth between the two liquid chambers, but impacts the decoupling film to deform the decoupling film, so that the rigidity can be reduced, dynamic hardening is eliminated, and effective shock insulation is realized; when the amplitude of the power assembly is large, such as when a vehicle passes through a pothole road surface, the volume of the two liquid chambers of the decoupling film type hydraulic suspension is greatly changed, and liquid flows back and forth between the two liquid chambers, so that large damping can be generated, and vibration can be quickly attenuated.
In order to realize the functions, small gaps are reserved between the decoupling film cover plate and the decoupling film of the decoupling film type hydraulic suspension and between the decoupling film and the base, so that the volumes of the two liquid chambers can be freely changed under the working condition of small amplitude. However, the structure can cause the liquid in the two liquid chambers to impact the decoupling film under the working condition of large amplitude, so that the decoupling film can flap the cover plate and the base of the decoupling film, abnormal sound is generated, and the quality of an automobile is reduced.
Disclosure of Invention
The invention aims to provide a hydraulic suspension without abnormal sound and a suspension system comprising the same.
In order to achieve the above object, the present invention provides a hydraulic mount, including:
the base is provided with a first groove and a second groove which are opposite in direction, the first groove participates in forming a first liquid chamber, the second groove participates in forming a second liquid chamber, and a first through hole penetrates through the bottom of the first groove and the bottom of the second groove;
the cover plate covers the first groove and is provided with a second through hole;
the decoupling film comprises a film body, a first convex column and a second convex column, wherein the first convex column and the second convex column are respectively arranged on the surfaces of the two sides of the film body;
the part of the first convex column, which is positioned on one side of the cover plate far away from the membrane body, is provided with a first flange, the maximum outer diameter of the first flange is larger than the aperture of the second through hole, the part of the second convex column, which extends into the second groove, is provided with a second flange, and the maximum outer diameter of the second flange is larger than the aperture of the first through hole.
Preferably, the distance between the first flange and the cover plate is smaller than the distance between the film body and the groove bottom of the first groove.
Preferably, the distance between the second flange and the groove bottom of the second groove is smaller than the distance between the film body and the cover plate.
Preferably, the surface of the membrane body provided with the first convex column is also provided with first ribs, and the surface of the membrane body provided with the second convex column is also provided with second ribs.
Preferably, the distance between the first flange and the cover plate is smaller than the distance between the second rib and the groove bottom of the first groove.
Preferably, the distance between the second flange and the groove bottom of the second groove is smaller than the distance between the first rib and the cover plate.
Preferably, the first convex columns are arranged in parallel at equal intervals, and the second convex columns are also arranged in parallel at equal intervals.
Preferably, the first convex column and the second convex column are symmetrically distributed around the membrane body.
Preferably, the liquid container further comprises a cover and a main spring, the cover covers the first groove and is fixedly connected with the base, the main spring is arranged in the cover and is fixedly connected with the base through a framework, the main spring presses the cover plate onto the base, a third groove is arranged on one side, facing the cover plate, of the main spring, the third groove and the first groove form the first liquid chamber, and the third groove is communicated with the first groove through the second through hole.
Preferably, the base is further provided with an inertia channel communicated with the second groove, the inertia channel is groove-shaped and surrounds the first groove, the cover plate covers the inertia channel and the first groove at the same time, and the cover plate is provided with a third through hole communicated with the inertia channel and the third groove.
Preferably, the hydraulic mount further comprises a bracket arm, and the bracket arm is connected with the main spring.
Preferably, the hydraulic mount further comprises a cup, the cup covers the second groove and is fixedly connected with the base through a pressing ring, and a bowl cavity of the cup and the second groove form the second liquid chamber.
Another object of the present invention is to provide a suspension system comprising the above-mentioned hydraulic suspension.
The embodiment of the invention provides a hydraulic suspension, which has the following beneficial effects compared with the prior art:
when the amplitude of the power assembly is large, such as when a vehicle passes through a sunk road surface, the volumes of the first liquid chamber and the second liquid chamber are greatly changed, at the moment, the liquid in the first liquid chamber and the second liquid chamber flows back and forth between the two liquid chambers due to the large increment of the pressure, so that large damping is generated, vibration is quickly attenuated, and meanwhile, the liquid alternately impacts the decoupling membrane along with the change of the vibration direction of the power assembly, so that the membrane body of the decoupling membrane is deformed. In the process, the impact force of the liquid is larger, so that the deformation amplitude of the membrane body is larger, and further, the first flange on the first convex column can cover the second through hole along with the deformation of the membrane body, so that the liquid in the first liquid chamber cannot flow through the second through hole to further impact the membrane body, and the membrane body can be prevented from beating the base; similarly, the second flange on the second convex column can cover the first through hole along with the deformation of the membrane body, so that the liquid in the second liquid chamber cannot flow through the first through hole to further impact the membrane body, and the cover plate can be prevented from being beaten by the membrane body. Based on this, the diaphragm body of decoupling film is restricted by first flange and second flange in certain deformation range, can not pat apron and base under the operating mode of big amplitude, consequently can not produce the abnormal sound, can improve the quality of car.
In addition, the embodiment of the invention also provides a suspension system, and the hydraulic suspension system has the advantages of no abnormal sound, good performance, high quality and the like.
Drawings
FIG. 1 is a schematic diagram of a hydraulic mount according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a decoupling film of an embodiment of the invention.
In the figure: 1. a base; 11. a first groove; 12. a second groove; 13. a first through hole; 14. an inertial channel; 2. a cover plate; 21. a second through hole; 3. a decoupling membrane; 31. a membrane body; 32. a first convex column; 321. a first flange; 33. a second convex column; 331. a second flange; 34. a first rib; 35. a second rib; 4. a housing; 5. a main spring; 51. a third groove; 6. a bracket arm; 7. a leather cup; 8. a framework; 9. and (5) pressing a ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a hydraulic mount, which mainly includes a base 1, a cover plate 2, and a decoupling film 3; the base 1 is provided with a first groove 11 and a second groove 12 which face back to each other, the first groove 11 participates in forming a first liquid chamber, the second groove 12 participates in forming a second liquid chamber, and a first through hole 13 penetrates between the bottom of the first groove 11 and the bottom of the second groove 12; the cover plate 2 covers the first groove 11, and the cover plate 2 is provided with a second through hole 21; the decoupling film 3 comprises a film body 31, and a first convex column 32 and a second convex column 33 which are respectively arranged on the surfaces of two sides of the film body 31, the film body 31 is arranged in the first groove 11, gaps are formed between the film body 31 and the groove bottom of the first groove 11 and between the film body 31 and the cover plate 2, one end of the first convex column 32, which is far away from the film body 31, extends out of the first groove 11 through the second through hole 21, and one end of the second convex column 33, which is far away from the film body 31, extends into the second groove 12 through the first through hole 13; the part of the first convex column 32, which is located on the side of the cover plate 2 away from the membrane body 31, is provided with a first flange 321, and the maximum outer diameter of the first flange 321 is larger than the aperture of the second through hole 21, that is, the first flange 321 cannot pass through the second through hole 21, so that the first flange can be used for sealing the second through hole 21; correspondingly, the part of the second protrusion 33 extending into the second groove 12 has a second flange 331, and the maximum outer diameter of the second flange 331 is larger than the aperture of the first through hole 13, that is, the second flange 331 cannot pass through the first through hole 13, so as to be used for covering the first through hole 13.
When the amplitude of the power assembly is small, for example, when a vehicle runs on a smooth road surface, the volumes of the first liquid chamber and the second liquid chamber are changed slightly, and at the moment, the liquid in the first liquid chamber and the second liquid chamber cannot flow back and forth between the two liquid chambers because the increment of the pressure is small, and only the decoupling membrane 3 is impacted, so that the membrane body 31 is deformed, the rigidity is reduced, the dynamic hardening is eliminated, and the effective shock insulation is realized. In this process, since the impact force of the liquid is small, the deformation amplitude of the film body 31 is small, the cover plate 2 and the base 1 are not slapped to generate abnormal noise, and the first flange 321 does not cover the second through hole 21, and the second flange 331 does not cover the first through hole 13.
When the amplitude of the power assembly is large, such as when a vehicle passes through a sunk road surface, the volumes of the first liquid chamber and the second liquid chamber are greatly changed, at the moment, the liquid in the first liquid chamber and the second liquid chamber flows back and forth between the two liquid chambers due to the large increment of the pressure, so that large damping is generated, vibration is quickly damped, and meanwhile, the liquid alternately impacts the decoupling membrane 3 along with the change of the vibration direction of the power assembly, so that the membrane body 31 of the decoupling membrane is deformed. In the process, the impact force of the liquid is larger, so the deformation amplitude of the film body 31 is larger, and further, the first flange 321 on the first boss 32 covers the second through hole 21 along with the deformation of the film body 31, so that the liquid in the first liquid chamber cannot flow through the second through hole 21 to further impact the film body 31, thereby preventing the film body 31 from beating the base 1; similarly, the second flange 331 of the second protrusion 33 covers the first through hole 13 along with the deformation of the membrane 31, so that the liquid in the second liquid chamber cannot flow through the first through hole 13 to further impact the membrane 31, thereby preventing the membrane 31 from beating the cover plate 2. Therefore, the film body 31 of the decoupling film 3 is limited in a certain deformation range by the first flange 321 and the second flange 331, and the cover plate 2 and the base 1 are not flapped under the working condition of large amplitude, so that abnormal sound is not generated, and the quality of the automobile can be improved.
As shown in fig. 2, in order to prevent the film body 31 from being deformed to flap against the base 1 before the first flange 321 seals the second through hole 21, a distance a between the first flange 321 and the cover plate 2 is smaller than a distance b between the film body 31 and the groove bottom of the first groove 11. Similarly, in order to prevent the film body 31 from being deformed to flap against the cover plate 2 before the second flange 331 seals the first through hole 13, the distance c between the second flange 331 and the groove bottom of the second groove 12 is smaller than the distance d between the film body 31 and the cover plate 2.
Specifically, as shown in fig. 1 and 2, the hydraulic mount provided by the embodiment of the invention further includes a housing 4, a main spring 5, a bracket arm 6 and a cup 7. The housing 4 covers the first groove 11 and is directly and fixedly connected with the base 1, the main spring 5 is arranged in the housing 4 and is fixedly connected with the base 1 through the framework 8, and the cover plate 2 is pressed on the base 1 by the main spring 5; the side of the main spring 5 facing the cover plate 2 is provided with a third recess 51, the third recess 51 and the first recess 11 constitute the above-mentioned first liquid chamber, and the third recess 51 communicates with the first recess 11 through the second through hole 21. The base 1 is further provided with an inertia track 14 communicating with the second recess 12, the inertia track 14 is groove-shaped and surrounds the first recess 11, the cover 2 covers both the inertia track 14 and the first recess 11, and the cover 2 is provided with a third through hole communicating the inertia track 14 with the third recess 51. The bracket arm 6 is connected with the main spring 5 and is used for transmitting the vibration generated by the power assembly to the main spring 5 and feeding back the damping received by the main spring 5 to the power assembly. The leather cup 7 covers the second groove 12 and is fixedly connected with the base 1 through the pressing ring 9, and the cup cavity of the leather cup 7 and the second groove 12 form the second liquid chamber.
Based on the above structure, referring to the orientation shown in fig. 1, when the amplitude of the power assembly is small and the vibration direction is downward, the main spring 5 is pressed down by the supporting arm 6, the volume of the first liquid chamber is slightly reduced, the pressure of the liquid in the first liquid chamber is slightly increased, and the liquid in the first liquid chamber impacts the membrane body 31 of the decoupling membrane 3 through the second through hole 21; when the amplitude of the power train is small and the vibration direction is upward, the main spring 5 is pulled up by the supporting arm 6, the volume of the first liquid chamber is slightly increased, the pressure of the liquid in the first liquid chamber is slightly reduced, and the liquid in the second liquid chamber impacts the membrane body 31 of the decoupling membrane 3 through the first through hole 13. When the amplitude of the power assembly is large and the vibration direction is downward, the supporting arm 6 presses the main spring 5 downward, the volume of the first liquid chamber is greatly reduced, the pressure of liquid in the first liquid chamber is greatly increased, a part of liquid in the first liquid chamber impacts the membrane body 31 of the decoupling membrane 3 through the second through hole 21, the other part of liquid flows into the second liquid chamber through the third through hole and the inertia channel 14, so that the leather cup 7 is bulged downward, and the volume of the second liquid chamber is increased; when the amplitude of the power assembly is large and the vibration direction is upward, the main spring 5 is pulled up by the supporting arm 6, the volume of the first liquid chamber is greatly increased, the pressure of liquid in the first liquid chamber is greatly reduced, a part of liquid in the second liquid chamber impacts the membrane body 31 of the decoupling membrane 3 through the first through hole 13, the other part of liquid flows into the first liquid chamber through the inertia channel 14 and the third through hole, so that the leather cup 7 is bulged upward, and the volume of the second liquid chamber is reduced.
Alternatively, as shown in fig. 1 and fig. 2, as a specific implementation of the hydraulic mount provided by the embodiment of the present invention, the surface of the membrane 31 provided with the first protruding pillar 32 is further provided with a first rib 34, and the surface of the membrane 31 provided with the second protruding pillar 33 is further provided with a second rib 35, so that the membrane 31 has stronger deformation resistance, and the risk of beating the cover plate 2 and the base 1 is further reduced. Note that, at this time, the distance a between the first flange 321 and the cover plate 2 is smaller than the distance b 'between the second ribs 35 and the groove bottom of the first groove 11, and the distance c between the second flange 331 and the groove bottom of the second groove 12 is smaller than the distance d' between the first ribs 34 and the cover plate 2.
Alternatively, as shown in fig. 1 and fig. 2, as a specific implementation of the hydraulic mount provided by the embodiment of the present invention, the first convex columns 32 are arranged in a plurality of parallel equally spaced rows, and the second convex columns 33 are also arranged in a plurality of parallel equally spaced rows. Preferably, the first and second studs 32, 33 are symmetrically distributed about the diaphragm 31. Thus, the membrane body 31 is stressed evenly, and the situation that the local deformation is too large to flap the cover plate 2 and the base 1 can not occur.
Alternatively, as shown in fig. 1 and fig. 2, as a specific implementation of the hydraulic mount provided as an embodiment of the present invention, the outer diameter of the first flange 321 is gradually reduced from the end close to the cover plate 2 to the end far from the cover plate 2, and the outer diameter of the second flange 331 is gradually reduced from the end close to the groove bottom of the second groove 12 to the end far from the groove bottom of the second groove 12.
In addition, the embodiment of the invention also provides a suspension system which comprises the hydraulic suspension, so that the suspension system also has the advantages of no abnormal sound, good performance, high quality and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (13)
1. A hydraulic mount, comprising:
the base is provided with a first groove and a second groove which are opposite in direction, the first groove participates in forming a first liquid chamber, the second groove participates in forming a second liquid chamber, and a first through hole penetrates through the bottom of the first groove and the bottom of the second groove;
the cover plate covers the first groove and is provided with a second through hole;
the decoupling film comprises a film body, a first convex column and a second convex column, wherein the first convex column and the second convex column are respectively arranged on the surfaces of the two sides of the film body;
the part of the first convex column, which is positioned on one side of the cover plate far away from the membrane body, is provided with a first flange, the maximum outer diameter of the first flange is larger than the aperture of the second through hole, the part of the second convex column, which extends into the second groove, is provided with a second flange, and the maximum outer diameter of the second flange is larger than the aperture of the first through hole.
2. The hydraulic mount of claim 1 wherein:
the distance between the first flange and the cover plate is smaller than the distance between the membrane body and the bottom of the first groove.
3. The hydraulic mount of claim 1 wherein:
the distance between the second flange and the groove bottom of the second groove is smaller than the distance between the membrane body and the cover plate.
4. The hydraulic mount of claim 1 wherein:
the surface that the diaphragm is equipped with first projection still is equipped with first rib, the diaphragm is equipped with the surface of second projection still is equipped with the second rib.
5. The hydraulic mount of claim 4 wherein:
the distance between the first flange and the cover plate is smaller than the distance between the second ribs and the groove bottom of the first groove.
6. The hydraulic mount of claim 4 wherein:
the distance between the second flange and the groove bottom of the second groove is smaller than the distance between the first rib and the cover plate.
7. The hydraulic mount of claim 1 wherein:
the first convex columns are arranged in a plurality of parallel equal intervals, and the second convex columns are also arranged in a plurality of parallel equal intervals.
8. The hydraulic mount of claim 7 wherein:
the first convex column and the second convex column are symmetrically distributed around the membrane body.
9. The hydraulic mount of any of claims 1-8 wherein:
the cover covers the first groove and is fixedly connected with the base, the main spring is arranged in the cover and is fixedly connected with the base through a framework, the cover plate is pressed on the base through the main spring, a third groove is arranged on one side, facing the cover plate, of the main spring, the third groove and the first groove form a first liquid chamber, and the third groove is communicated with the first groove through the second through hole.
10. The hydraulic mount of claim 9 wherein:
the base is further provided with an inertia channel communicated with the second groove, the inertia channel is groove-shaped and surrounds the first groove, the cover plate covers the inertia channel and the first groove at the same time, and the cover plate is provided with a third through hole communicated with the inertia channel and the third groove.
11. The hydraulic mount of claim 9 wherein:
the support arm is connected with the main spring.
12. The hydraulic mount of any of claims 1-8 wherein:
still include the packing cup, the packing cup covers the second recess and through the clamping ring with base fixed connection, the bowl chamber of packing cup with the second recess constitutes the second liquid chamber.
13. A suspension system comprising a hydraulic suspension according to any of claims 1-12.
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CN202010094877.7A CN113266664B (en) | 2020-02-14 | 2020-02-14 | Hydraulic suspension and suspension system comprising same |
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CN202010094877.7A CN113266664B (en) | 2020-02-14 | 2020-02-14 | Hydraulic suspension and suspension system comprising same |
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CN205064690U (en) * | 2015-03-26 | 2016-03-02 | 上海豪骋机电科技有限公司 | Hydraulic pressure suspension of matcing high -speed electric automobile power assembly |
CN108019456A (en) * | 2017-12-15 | 2018-05-11 | 吉林大学 | A kind of double main spring hydraulic mounts of the magnetorheological elastomer containing magneto |
CN108131415A (en) * | 2016-12-01 | 2018-06-08 | 江苏骆氏减震件有限公司 | It decouples diaphragm and includes its Hydraulic Engine Mount |
CN207683315U (en) * | 2017-12-25 | 2018-08-03 | 北京长城华冠汽车技术开发有限公司 | Novel hydraulic suspension decoupling membrane structure and hydraulic mount |
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2020
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Publication number | Priority date | Publication date | Assignee | Title |
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US20090140476A1 (en) * | 2007-11-30 | 2009-06-04 | Tokai Rubber Industries, Ltd. | Fluid filled type vibration damping device |
US20140175719A1 (en) * | 2011-12-27 | 2014-06-26 | Tokai Rubber Industries, Ltd. | Fluid-filled vibration damping device |
CN205064690U (en) * | 2015-03-26 | 2016-03-02 | 上海豪骋机电科技有限公司 | Hydraulic pressure suspension of matcing high -speed electric automobile power assembly |
CN108131415A (en) * | 2016-12-01 | 2018-06-08 | 江苏骆氏减震件有限公司 | It decouples diaphragm and includes its Hydraulic Engine Mount |
CN108019456A (en) * | 2017-12-15 | 2018-05-11 | 吉林大学 | A kind of double main spring hydraulic mounts of the magnetorheological elastomer containing magneto |
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