CN104806688A - Hydraulic suspension - Google Patents
Hydraulic suspension Download PDFInfo
- Publication number
- CN104806688A CN104806688A CN201510213690.3A CN201510213690A CN104806688A CN 104806688 A CN104806688 A CN 104806688A CN 201510213690 A CN201510213690 A CN 201510213690A CN 104806688 A CN104806688 A CN 104806688A
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- China
- Prior art keywords
- decoupling zero
- platen
- circumference
- projection
- zero diaphragm
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Classifications
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The invention relates to a hydraulic suspension, which comprises a main spring, a flow passage, a platen, a metal skeleton, a bottom film, a decoupling membrane, an upper hydraulic chamber and a lower hydraulic chamber, wherein a plurality of through holes are formed in the places, which are opposite to the decoupling membrane, of the platen; a plurality of openings are formed in the places, which are opposite to the decoupling membrane, of the flow passage; a connecting line between the center of each opening and the center of through hole opposite to the opening is perpendicular to the decoupling membrane; the decoupling membrane is provided with bulges which outwards extend from the upper surface and the lower surface at the same time; the bugles are not opposite to the through holes. The through holes in the platen and in the flow passage are enabled to form a net structure; meanwhile, the bulges are added on the decoupling membrane to fix the decoupling membrane; the decoupling membrane can be effectively prevented from a large deformation quantity when being strongly impacted; the reliability problem of the decoupling membrane is solved.
Description
Technical field
The invention belongs to field of automobile suspension, specifically refer to a kind of hydraulic mount.
Background technique
For engine side suspension, in order to improve its anti-vibration performance in high frequency, be generally all designed to hydraulic mount, its Specifeca tion speeification of hydraulic mount to have under dynamic stiffness under the output ratio of Q-switching to free running and high frequency, low frequency large damping etc.In general, what affect the output ratio of Q-switching to free running is decoupling zero mambrane tension, and what affect the dynamic stiffness under high frequency is flow-disturbing dish.Therefore, select Low rigidity decoupling zero diaphragm to be conducive to obtaining the less output ratio of Q-switching to free running, be beneficial to isolation high frequency small amplitude motion.But general its endurance quality of Low rigidity decoupling zero diaphragm is lower, especially for cross-country type vehicle, road conditions are severe, hydraulic mount inner decoupling zero diaphragm breakage phenomenon can occur more.After breakage, though the output ratio of Q-switching to free running is lower, low frequency damping and gum close, lose hydraulic mount function.Therefore, restrict by endurance quality, Low rigidity decoupling zero diaphragm SUV, MPV vehicle use and inapplicable.
Dynamic stiffness: relative to the definition of Static stiffness, Static stiffness refers to the deformation quantity that object produces under certain External Force Acting, and dynamic stiffness is then the deformation quantity that object produces under the External Force Acting under certain frequency.
The output ratio of Q-switching to free running: the ratio of dynamic stiffness and Static stiffness.
As depicted in figs. 1 and 2, for the suspending soft cushion assembly on SUV power assembly, comprise the suspending cushion be made up of rubber spring 1, suspension purchasing ore 5, runner 4, platen 3, decoupling zero diaphragm 7, flow-disturbing dish 2, bed die 6, isolated by decoupling zero diaphragm 7 between upper liquid chamber 8 and lower liquid chamber, the circulation between liquid chamber is realized by runner 4, when low frequency large amplitude, liquid directly circulates at upper liquid chamber 8 and lower liquid chamber via runner 4, the fluid resistance now produced through small channel by liquid stream is comparatively large, is the main contributions element producing low frequency damping; Under engine idle and high-speed working condition, because amplitude is less, frequency is very fast, liquid almost effectively cannot flow in runner, only has the volume-variation being realized upper and lower liquid chamber by the distortion of decoupling zero diaphragm, therefore the rigidity of decoupling zero diaphragm has just become impact now to suspend the key factor of dynamic stiffness, and the thickness of decoupling zero diaphragm, size and structure and rubber material are the principal element places affecting its performance, decoupling zero mambrane tension is low, and dynamic stiffness is little.Therefore thin, that hardness is low decoupling zero diaphragm, can obtain lower dynamic stiffness, but its endurance quality is poor, easily occurs disrepair phenomenon.
The shortcoming of this technological scheme is:
1) general this kind of structure decoupling diaphragm, for being pressed between platen and runner, generally its inner metal-containing skeleton, decoupling zero mambrane tension is comparatively large, and therefore, the output ratio of Q-switching to free running is comparatively large, is unfavorable for isolation high frequency small amplitude motion.Such as: time 25Hz (for four-cylinder, during idling 750rpm, the second order energizing frequency of motor), the output ratio of Q-switching to free running under certain amplitude is comparatively large, and be unfavorable for vibration when isolating engine idle, other higher frequencies are also like this.
2) though this kind of decoupling zero mambrane tension is larger, its endurance quality is good, but increases along with vehicle travels the severe degree of road conditions, and service time is longer, decoupling zero diaphragm still occurs Some vehicles damages, the vibration of power assembly when being unfavorable for isolating low frequency (especially 10-13Hz).
For overcoming the shortcoming of existing technology, technology has now been had to propose improvement opportunity scheme, namely the suspending soft cushion assembly on existing MPV power assembly is divided into two classes, one class uses gum suspension, another kind of is close with the suspending soft cushion assembly on existing SUV power assembly, is only be provided with cross recess on decoupling zero diaphragm.
And such improvement still Shortcomings part:
For gum suspension, there is dynamic hardening phenomenon in (1) high frequency, is unfavorable for the vibration of isolation high frequency small amplitude; (2) during low frequency, damping is little, is unfavorable for isolation low frequency Large Amplitude Vibration.
For hydraulic mount (decoupling zero diaphragm exists otch), due to otch, when can cause low frequency, damping is less, is unfavorable for isolation low frequency Large Amplitude Vibration.
Summary of the invention
The object of the invention is to propose improvement opportunity scheme to existing hydraulic mount, on the basis ensureing suspension performance, make this suspension have the lower output ratio of Q-switching to free running, make decoupling zero diaphragm have good reliability simultaneously.
The present invention is achieved by the following technical solutions:
A kind of hydraulic mount, includes main spring, runner, platen, metal frame, counterdie, decoupling zero diaphragm, upper liquid chamber and lower liquid chamber;
Described main spring, described runner, described platen, described decoupling zero diaphragm are all arranged in described metal frame; Described counterdie is arranged at the lower end of described metal frame; Described runner, described decoupling zero diaphragm and described platen are fitted;
Described lower liquid chamber is formed between described counterdie and described runner; Upper liquid chamber is formed between described platen and described main spring;
Described platen and described decoupling zero diaphragm opposite position are provided with multiple through hole;
Described runner and described decoupling zero diaphragm opposite position are provided with multiple opening; The center of each described opening and the line of centres of relative described through hole are all perpendicular to described decoupling zero diaphragm;
Described decoupling zero diaphragm is provided with simultaneously from upper surface and the outward extending projection of lower surface; Described projection is not relative with described through hole.
Described through hole center on described platen be set to described platen center be the center of circle two circumferentially, two circumference are respectively the first circumference and the second circumference; The radius of described first circumference is less than the radius of described second circumference.
Described first circumference and described second circumference are divided into 6 sector regions jointly; In each described sector region described first is circumferentially provided with a described through hole, is circumferentially provided with two described through holes described second.
The shape of described opening, size and location and described through hole are consistent.
Described projection includes first protruding, the second protruding and the 3rd projection; Described first projection is arranged between the center of described decoupling zero diaphragm and described first circumference; Described second projection is arranged between described first circumference and described second circumference; Described 3rd projection is arranged at the edge of described decoupling zero diaphragm.
Described second projection is ring with described 3rd projection.
Described 3rd projection, described platen and described runner are interference fit.
The invention has the beneficial effects as follows:
Eliminate diaphragm sulfuration skeleton, can the output ratio of Q-switching to free running be reduced, thus lower dynamic stiffness can be obtained, be conducive to separating vibration;
By platen, runner matrix of holes, form reticular structure, simultaneously again decoupling zero diaphragm increases protruding fixing decoupling zero diaphragm, when effectively can avoid large impact, decoupling zero diaphragm deformation quantity is large, solves decoupling zero diaphragm integrity problem;
After above-mentioned change, both reduced suspension dynamic stiffness, make again decoupling zero diaphragm have good reliability, product performance are optimized.
Accompanying drawing explanation
Fig. 1 is existing technology hydraulic mount schematic diagram;
Fig. 2 is existing technology hydraulic mount schematic cross-section;
Fig. 3 is hydraulic suspension structure schematic diagram of the present invention;
Fig. 4 is be the platen of this technology, decoupling zero diaphragm and runner contrast figure by existing technology alteration;
Fig. 5 is decoupling zero diaphragm sectional view of the present invention;
Fig. 6 is platen front view of the present invention;
Fig. 7 is runner front view of the present invention.
Description of reference numerals
1 rubber spring, 2 flow-disturbing dishes, 3 platens, 4 runners, 5 suspension purchasing ore, 6 bed dies, 7 decoupling zero diaphragms, 8 upper liquid chambers, 101 main springs, 102 runners, 103 metal frames, 104 counterdies, 105 decoupling zero diaphragms, 106 upper liquid chambers, 107 times liquid chambers, 108 platens, 1021 openings, 1081 through holes, 1051 first is protruding, and 1,052 second is protruding, and 1053 the 3rd is protruding.
Embodiment
Describe technological scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of hydraulic mount, as shown in Fig. 3 to Fig. 7, include main spring 101, runner 102, platen 108, metal frame 103, counterdie 104, decoupling zero diaphragm 105, upper liquid chamber 106 and lower liquid chamber 107; In the present invention, main spring 101, metal frame 103 and counterdie 104 is prior art, does not improve, further, in the application, the mounting point of each parts is also identical with existing hydraulic mount, therefore, in these these parts and be not described in detail in mounting structure.
Described main spring 101, described runner 102, described platen 108, described decoupling zero diaphragm 105 are all arranged in described metal frame 103; Described counterdie 104 is arranged at the lower end of described metal frame 103; Described runner 102, described decoupling zero diaphragm 105 and described platen 108 are fitted;
Described lower liquid chamber 107 is formed between described counterdie 104 and described runner 102; Upper liquid chamber 106 is formed between described platen 108 and described main spring 101;
Described platen 108 is provided with multiple through hole 1081 with described decoupling zero diaphragm 105 opposite position; Described through hole center on described platen be set to described platen center be the center of circle two circumferentially, two circumference are respectively the first circumference and the second circumference; The radius of described first circumference is less than the radius of described second circumference.
Described first circumference and described second circumference are divided into 6 sector regions jointly; In each described sector region described first is circumferentially provided with a described through hole, is circumferentially provided with two described through holes described second.
The concrete structure of platen is as Fig. 3, shown in Fig. 4 and Fig. 6, with being distinguished as of existing platen, the border circular areas relative with the top of decoupling zero diaphragm is closed, in border circular areas, increase a series of through hole simultaneously, circumferentially arrange, be divided into 6 sector regions, adjacent two sector region interval 2.5mm, 3 through holes are had in each sector region, totally 1 through hole be centrally located at first circumferentially, radius R 7.5mm (the through hole inner circle radius R5mm of the first circumference, through hole exradius R10mm, through hole inner circle radius herein and exradius refer to, with the center of decoupling zero diaphragm do radius with logical crossing time, and the distance between intersection point near between decoupling zero diaphragm is through hole inner circle radius, and the distance between the intersection point of distance is through hole exradius, angle 30 °, refer to the angle of sector region), the center (two through-hole spacing 2mm) of totally 2 through holes is positioned at second circumferentially, radius R 15mm (the inner circle radius R12.5mm of the second circumference, exradius R17.5mm, angle 30 °, inner circle radius herein, exradius and angle are identical with above-mentioned), platen amounts to 18 through holes, and being positioned at first circumferentially has 6 through holes, and being positioned at second circumferentially has 12 through holes.
Described runner 102 is provided with multiple opening 1021 with described decoupling zero diaphragm 105 opposite position; The center of each described opening 1021 and the line of centres of relative described through hole 1081 are all perpendicular to described decoupling zero diaphragm 105; The shape of described opening, size and location and described through hole are consistent.
The concrete structure of runner, as shown in Fig. 3, Fig. 4 and Fig. 7, with being distinguished as of existing runner, by the border circular areas inner sealing relative with below decoupling zero diaphragm, increases a series of opening simultaneously in border circular areas.On runner, on series of openings shape, size, position and platen, through hole is consistent, and keep decoupling zero diaphragm installing space constant, radius is 22.5mm, is highly 5.3mm simultaneously.
Described decoupling zero diaphragm 105 is provided with simultaneously from upper surface and the outward extending projection of lower surface; Described projection is not relative with described through hole, refers to that the vertical projection of through hole on decoupling zero diaphragm is not crossing with projection herein.
Described projection includes the first projection 1051, second protruding 1052 and the 3rd projection 1053; Described first projection is arranged between the center of described decoupling zero diaphragm and described first circumference; Described second projection is arranged between described first circumference and described second circumference; Described 3rd projection is arranged at the edge of described decoupling zero diaphragm.
Described second projection is ring with described 3rd projection.Described 3rd projection, described platen and described runner are interference fit.
As shown in Figure 5, the decoupling zero diaphragm of the decoupling zero diaphragm co-occurrence technology of the application is compared, cancel decoupling zero diaphragm inner frame, increase protruding on decoupling zero diaphragm simultaneously, for fixing decoupling zero diaphragm, (decoupling zero diaphragm projection is interference fit with platen, runner, in the present embodiment, the first height of projection is of a size of 5.5mm, and non-boss is 3mm).Upside raised position is arranged on platen home position (without lead to the hole site place, radius is in R8 circumference range), between the first circumference and the second circumference (without lead to the hole site place, radius is in the circumference range of R10mm-R12mm) the second projection is set, and second periphery (without lead to the hole site place, radius is in the circumference range of R20mm-R22mm) to the edge of decoupling zero diaphragm is provided with the 3rd protruding.
After above-mentioned change, during high frequency small amplitude vibration, because the inner sulfuration skeleton of decoupling zero diaphragm is cancelled, rigidity reduces, and decoupling zero diaphragm rubber hardness reduces, and rigidity reduces, and the output ratio of Q-switching to free running all can be made to reduce, and is beneficial to the vibration of isolation high frequency small amplitude; In addition, when vehicle travels severe road conditions, main spring is by the greater impact power of upwards (or under), first liquid cause decoupling zero diaphragm deformation, when decoupling zero diaphragm and platen or runner fit tightly, the reticular structure that through hole on platen, runner is formed can reduce decoupling zero deformation of membrane, decoupling zero diaphragm effectively can be avoided to produce aximal deformation value, solve integrity problem.
The application utilizes and reduces hydraulic mount decoupling zero mambrane tension, cancels decoupling zero diaphragm skeleton, obtains the less output ratio of Q-switching to free running.Increase matrix of holes at platen, runner, form reticular structure, increase at decoupling zero diaphragm protruding fixing simultaneously, avoid decoupling zero diaphragm breakage problem to produce.The present invention, on original structure basis, by changing the internal structure of suspension, promoting suspension performance, increasing the reliability of suspension.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (7)
1. a hydraulic mount, includes main spring, runner, platen, metal frame, counterdie, decoupling zero diaphragm, upper liquid chamber and lower liquid chamber;
Described main spring, described runner, described platen, described decoupling zero diaphragm are all arranged in described metal frame; Described counterdie is arranged at the lower end of described metal frame; Described runner, described decoupling zero diaphragm and described platen are fitted;
Described lower liquid chamber is formed between described counterdie and described runner; Upper liquid chamber is formed between described platen and described main spring; It is characterized in that:
Described platen and described decoupling zero diaphragm opposite position are provided with multiple through hole;
Described runner and described decoupling zero diaphragm opposite position are provided with multiple opening; The center of each described opening and the line of centres of relative described through hole are all perpendicular to described decoupling zero diaphragm;
Described decoupling zero diaphragm is provided with simultaneously from upper surface and the outward extending projection of lower surface; Described projection is not relative with described through hole.
2. hydraulic mount according to claim 1, is characterized in that: described through hole center on described platen be set to described platen center be the center of circle two circumferentially, two circumference are respectively the first circumference and the second circumference; The radius of described first circumference is less than the radius of described second circumference.
3. hydraulic mount according to claim 2, is characterized in that: described first circumference and described second circumference are divided into 6 sector regions jointly; In each described sector region described first is circumferentially provided with a described through hole, is circumferentially provided with two described through holes described second.
4. hydraulic mount according to claim 1, is characterized in that: the shape of described opening, size and location and described through hole are consistent.
5. hydraulic mount according to claim 2, is characterized in that: described projection includes first protruding, the second protruding and the 3rd projection; Described first projection is arranged between the center of described decoupling zero diaphragm and described first circumference; Described second projection is arranged between described first circumference and described second circumference; Described 3rd projection is arranged at the edge of described decoupling zero diaphragm.
6. hydraulic mount according to claim 5, is characterized in that: described second projection is ring with described 3rd projection.
7. hydraulic mount according to claim 5, is characterized in that: described 3rd projection, described platen and described runner are interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213690.3A CN104806688A (en) | 2015-04-29 | 2015-04-29 | Hydraulic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213690.3A CN104806688A (en) | 2015-04-29 | 2015-04-29 | Hydraulic suspension |
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| Publication Number | Publication Date |
|---|---|
| CN104806688A true CN104806688A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510213690.3A Pending CN104806688A (en) | 2015-04-29 | 2015-04-29 | Hydraulic suspension |
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| CN (1) | CN104806688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006150A (en) * | 2017-01-03 | 2018-05-08 | 北京京西重工有限公司 | Vertical decoupler for hydraulic mount |
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| CN102588493A (en) * | 2012-03-02 | 2012-07-18 | 上海骆氏减震件有限公司 | Decoupling film, decoupling film skeleton and vibration isolation suspension |
| US20120299229A1 (en) * | 2010-02-25 | 2012-11-29 | Yamashita Rubber Kabushiki Kaisha | Liquid sealed vibration isolating device |
| CN103758917A (en) * | 2013-12-30 | 2014-04-30 | 长城汽车股份有限公司 | Engine hydraulic suspension and vehicle comprising the same |
| CN204004162U (en) * | 2014-07-31 | 2014-12-10 | 重庆长安汽车股份有限公司 | A kind of hydraulic mount decoupling zero dish of anti-abnormal sound and decoupling type hydraulic mount |
| CN104254708A (en) * | 2012-04-27 | 2014-12-31 | 山下橡胶株式会社 | Liquid-sealing vibration-proof device |
| CN204592126U (en) * | 2015-04-29 | 2015-08-26 | 安徽江淮汽车股份有限公司 | A kind of hydraulic mount |
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2015
- 2015-04-29 CN CN201510213690.3A patent/CN104806688A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1782460A (en) * | 2004-09-30 | 2006-06-07 | 东海橡胶工业株式会社 | Fluid filled vibration damping device |
| JP2008138854A (en) * | 2006-12-05 | 2008-06-19 | Yamashita Rubber Co Ltd | Liquid seal vibration control device |
| US20120299229A1 (en) * | 2010-02-25 | 2012-11-29 | Yamashita Rubber Kabushiki Kaisha | Liquid sealed vibration isolating device |
| CN102588493A (en) * | 2012-03-02 | 2012-07-18 | 上海骆氏减震件有限公司 | Decoupling film, decoupling film skeleton and vibration isolation suspension |
| CN104254708A (en) * | 2012-04-27 | 2014-12-31 | 山下橡胶株式会社 | Liquid-sealing vibration-proof device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006150A (en) * | 2017-01-03 | 2018-05-08 | 北京京西重工有限公司 | Vertical decoupler for hydraulic mount |
| US10584761B2 (en) | 2017-01-03 | 2020-03-10 | Beijingwest Industries Co., Ltd. | Vertical decoupler for a hydraulic mount |
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| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |