CN101648581B - Hydraulic suspension of automobile cab - Google Patents
Hydraulic suspension of automobile cab Download PDFInfo
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- CN101648581B CN101648581B CN2009100675311A CN200910067531A CN101648581B CN 101648581 B CN101648581 B CN 101648581B CN 2009100675311 A CN2009100675311 A CN 2009100675311A CN 200910067531 A CN200910067531 A CN 200910067531A CN 101648581 B CN101648581 B CN 101648581B
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- automobile cab
- inertia channel
- hydraulic suspension
- liquid chamber
- inertia
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Abstract
The invention relates to a hydraulic suspension of an automobile cab, belonging to the field of automobile part and aiming to replace the traditional rubber suspension. The hydraulic suspension of the automobile cab mainly comprises an upper liquid chamber, a lower liquid chamber, a shell, a buffering limited block, an inertia passage body, a bottom membrane, a main rubber spring, metallic frameworks and a base, wherein the shell is in an annular structure and embedded into the base; the main rubber spring is connected with the metallic frameworks in a vulcanizing way, wherein the metallic frameworks are positioned on the inner edge and the outer edge of the main rubber spring; the inertia passage body is in an annular structure and is provided with an annular inertia passage and a decoupling passage playing a damping role; the lower liquid chamber consists of the metallic frameworks, the main rubber spring and the buffering limited block; the upper liquid chamber consists of the inertia passage body and the bottom membrane; and liquid inside the upper liquid chamber and the lower liquid chamber flows through the inertia passage. The hydraulic suspension has the advantages of compacter structure, reliable work, low cost and wide application and can effectively improve the NVH characteristic and other characteristics of the automobile cab.
Description
Technical field:
The present invention relates to a kind of hydraulic suspension of automobile cab, belong to the auto parts and components field.
Background technology:
In the last few years, on the one hand along with automobile design develops to high pulling torque, lightweight direction, cause the NVH of engine vibration aggravation, car load (to be meant noise, vibration and sound vibration roughness) characteristic degradation, people require more and more higher to the traveling comfort of vehicle ride on the other hand, traditional automobile cab suspends and can not satisfy operator's compartment well with the vibration isolation requirement between vehicle frame, objectively requires the Cab mounting of design performance excellence.
Summary of the invention:
The objective of the invention is: provide a kind of brand new hydraulic suspension of automobile cab to replace traditional automobile cab to suspend, fundamentally solve the NVH problem of automobile cab.Liquid damping effect by inertia channel consumes vibrational energy, and the low frequency that effectively suppresses operator's compartment significantly vibrates, and utilizes decoupling zero passage (damping hole on the inertia channel body) to eliminate the interior high frequency noise of operator's compartment, improves the travelling comfort of vehicle.According to reality, the structure of this hydraulic channel body and buffering limiting stopper is carried out certain variation simultaneously, can obtain several different versions, thereby improve vibration isolating effect better.
Above-mentioned purpose of the present invention is achieved in that accompanying drawings is as follows:
A kind of hydraulic suspension of automobile cab, mainly by last, following liquid chamber, housing, the buffer limit piece, the inertia channel body, counterdie, rubber spring, metallic framework and base are formed, said housing 2 is a loop configuration, be embedded on the base 9, described rubber spring 6 with its in, metallic framework 7 sulfurations on the outer rim connect, described inertia channel body 4 is a loop configuration, which is provided with annular inertia channel 11 and decoupling zero path 10 with shock damping action, metallic framework 7, rubber spring 6 and buffering limiting stopper 3 constitute liquid chamber 8 down, inertia channel body 4 constitutes upper liquid chamber 1 with counterdie 5, on, following liquid chamber 1, liquid flows by inertia channel 11 in 8.
Adopt interference fit between metallic framework 7 on described inertia channel body 4 and housing 2 inner edges and the rubber spring 6 and between housing 2 and the base 9.
Described inertia channel 11 has at least one bend, and passage is rectangle, circle or other geometric configuration cross section.
Described inertia channel 11 has at least two autonomous channels, have at least 1 pair of liquid inlet and outlet on each autonomous channel, passage is rectangle, circle or other geometric configuration cross section, has two or more bends, and each autonomous channel is by rotational symmetry or center symmetric arrangement.
Described buffer limit piece 3 is a Filled Rectangle piece.
Described buffer limit piece 3 is the plektron stay bearing plate, is rigidly connected by a connecting pin and axle sleeve.
Described buffer limit piece 3 is made up of upper and lower two orifice plates, the aperture difference of the corresponding aperture on the upper and lower orifice plate.
Described buffer limit piece 3 is a little cylinder, and the inside is full of the gas of certain pressure.
Main conception of the present invention is to design sap cavity up and down in traditional rubber mounting, separate by the inertia channel body, in the inertia channel body, be processed with the inertia channel 11 of ring-type, linear loss and throttle loss when utilizing liquid to flow in the inertia channel 11 of ring-type consume vibrational energy, effectively the low frequency that suppresses operator's compartment significantly vibrates, and reaches the purpose of vibration damping, vibration isolation.Be the high frequency noise that effectively suppresses in the operator's compartment simultaneously, on the inertia channel body, be provided with decoupling zero path 10 (being damping hole), solve the dynamic hardening phenomenon of high frequency of hydraulic mount, eliminate the high frequency noise in the operator's compartment, improve the NVH performance of car load, improved the travelling comfort of vehicle.Simultaneously, inertia channel body and buffering limiting stopper have partly been carried out design more in depth, developed a series of inertia channel bodies with different structure and function and buffering limiting stopper for you to choose according to hydraulic mount vibration isolation mechanism.
The present invention compares with traditional automobile cab rubber damping device has very significantly advantage:
Hydraulic suspension of automobile cab, can by liquid flowing in inertia channel decay very effectively that the low frequency of operator's compartment significantly vibrate and operator's compartment in high frequency noise.Compare with traditional Cab mounting:
(1) can very decay the effectively low frequency of operator's compartment significantly vibrates, effectively suppresses high frequency noise in the operator's compartment;
(2) reliable operation under the situation of hydraulic component failures, also has the anti-vibration performance of rubber mounting;
(3) connection mode between each parts can realize the sealing to liquid better;
(4) loop configuration is compact more, is more suitable for installing;
(5) connecting bushing is surrounded by rubber spring and metallic framework, and is more reliable to the safety guard-safeguard effect of want load bearing component;
(6) critical component inertia channel body has multiple structure for you to choose, can obtain different anti-vibration performances;
(7) the buffer limit piece has multiple structure for you to choose, can improve vibration isolating effect better;
(8) cost is low, and is of many uses;
(9) can effectively improve the NVH characteristic of automobile cab.
Description of drawings
Fig. 1 is the front view of hydraulic suspension of automobile cab.
Fig. 2 (a) is the birds-eye view of inertia channel body.
Fig. 2 (b) is that the A-A of Fig. 2 (a) is to cutaway view.
Fig. 2 (c) is the left view of Fig. 2 (a).
Fig. 2 (d) is the graphics of inertia channel body.
Fig. 3 (a) is for having the inertia channel body graphics of two bends.
Fig. 3 (b) is the birds-eye view of inertia channel body shown in above-mentioned Fig. 3 (a).
Fig. 4 (a) is the graphics of circular section inertia channel body.
Fig. 4 (b) is the left view of inertia channel body shown in above-mentioned Fig. 4 (a).
Fig. 5 (a) is the inertia channel body graphics of the two outlets of two bend symmetric double inlet.
Fig. 5 (b) is the birds-eye view of inertia channel body shown in above-mentioned Fig. 5 (a).
Fig. 6 (a) is the inertia channel body graphics of the two outlets of the asymmetric two inlets of two bends.
Fig. 6 (b) is the birds-eye view of inertia channel body shown in above-mentioned Fig. 6 (a).
Fig. 7 is a kind of simple type buffer limit block structured graphics.
Fig. 8 (a) is a kind of graphics that is similar to the buffer limit structure of plektron.
Fig. 8 (b) is that structure shown in above-mentioned Fig. 8 (a) is encased in the cutaway view in the hydraulic mount.
Fig. 9 (a) is a kind of three-dimensional assembly drowing of buffer limit structure of throttling pass.
Fig. 9 (b) is the three-dimensional assembly explosive view of structure shown in above-mentioned Fig. 9 (a).
Fig. 9 (c) is the instruction diagram of plate hole position up and down in the structure shown in above-mentioned Fig. 9 (a).
Figure 10 (a) is a kind of graphics of buffer limit structure of Air-chamber type.
Figure 10 (b) is the cutaway view of structure shown in above-mentioned Figure 10 (a).
Among the figure: 1. 28. connecting pins, 2 29. adapter sleeves, 30. up-hole plates, 31. orifice plates, 32. apertures, 1 33. corresponding macropore 1 ' 34. macropores 235. respective apertures 2 ' 36. locating slot (small end) 37. locating pieces (small end) 38. locating slots (large end), 39. locating pieces (large end), 40. air chamber bodies, 41. pistons, 42. air chamber covers, 43. gases are riveted in 26. welding 27. of 8. times liquid chambers of upper liquid chamber 2. housings, 3. buffer limit piece 4. inertia channel bodies, 5. counterdie 6. rubber springs, 7. metallic frameworks, 9. bases, 10. decoupling zero passages, 11. inertia channels, 12. entrances, 13. outlets, 14. circular sections, 15. inertia channels, 1 16. entrances, 1 17. outlets, 1 18. inertia channels, 2 19. entrances, 2 20. outlets, 2 21. axle sleeves, 22. rectangle buffer limit pieces, 23. connecting pins, 24. gripper shoes, 25. rubber bodies
The specific embodiment:
Further specify particular content of the present invention and working process thereof below in conjunction with the accompanying drawing example illustrated.
The present invention's----hydraulic suspension of automobile cab, it is made up of upper liquid chamber 1, housing 2, buffer limit piece 3, inertia channel body 4, counterdie 5, rubber spring 6, metallic framework 7, following liquid chamber 8 and base 9; 6 sulfurations are connected metallic framework 7 with rubber spring, and liquid flows in upper liquid chamber 1, following liquid chamber 8 by inertia channel 11, and linear loss when relying on flow of liquid and throttle loss consume vibrational energy, reach the purpose that the decay operator's compartment vibrates.
The present invention's----hydraulic suspension of automobile cab, it forms down liquid chamber 8 by housing 2, rubber spring 6 and buffer limit piece 3, housing 2, inertia channel body 4 and counterdie 5 form upper liquid chamber 1, and liquid flows at upper liquid chamber 1 and 8 of following liquid chambers through inertia channel 11, consumes vibrational energy.
The present invention's----hydraulic suspension of automobile cab, it improves the travelling comfort of vehicle by decoupling zero path 10 (damping hole) the attenuate high frequency noise of processing on the inertia channel body 4.
The present invention's----hydraulic suspension of automobile cab, its upper liquid chamber 1, following liquid chamber 8 seal by housing 2 with inertia channel body 4, prevent leak of liquid.
The present invention's----hydraulic suspension of automobile cab, adopt interference fit between its whole hydraulic shock-absorbing device (comprising upper liquid chamber 1, housing 2, buffer limit piece 3, inertia channel body 4, counterdie 5, rubber spring 6, metallic framework 7, following liquid chamber 8) and the base 9, in order to the side travel of restriction hydraulic mount.
The present invention's----hydraulic suspension of automobile cab, the operator's compartment low-frequency vibration can decay: when low vehicle speeds, because the uneven excitation of the vibration of driving engine and ground-surface causes that the low frequency of automobile cab significantly vibrates, when being subjected to downward disturbance force, hydraulic suspension of automobile cab does the time spent, rubber spring 6 is compressed, this is liquid chamber 8 smaller volume at present, the effect of being stressed of liquid in the following liquid chamber 8 enters upper liquid chamber 1 via inertia channel 11, because flow of liquid liquid when inertia channel 11 produces linear loss and throttle loss, this moment, hammer vibration energy obtained decay, therefore the low frequency that hydraulic suspension of automobile cab can the effective attenuation operator's compartment significantly vibrates, and improves the travelling comfort of vehicle.
The present invention's----hydraulic suspension of automobile cab, can suppress the operator's compartment high frequency noise: the high-frequency vibration of operator's compartment can bring out high frequency noise when high vehicle speeds, causes the early fatigue of occupant's fatigue and auto parts and components to destroy, and influences the NVH performance of vehicle.This moment, the inertia channel 11 of hydraulic mount produced the dynamic hardening phenomenon of high frequency; liquid can not flow in inertia channel 11; for addressing this problem; the decoupling zero path 10 of the present invention--hydraulic suspension of automobile cab by on inertia channel body 4, being provided with; it is damping hole; make liquid flow at high speed in the decoupling zero passage, reduce the high frequency dynamic stiffness that suspends and effectively suppress high frequency noise, protection occupant.
The present invention's----hydraulic suspension of automobile cab, its inertia channel body 4 can have multiple version.The results showed, the characteristic of hydraulic mount and the relating to parameters of inertia channel, thereby can mate the inertia channel body of different vibration isolation requirements according to these parameters.
First kind of structure consulted shown in Figure 2.Its inertia channel has a bend, and passage is the square-section.In Fig. 2 (a), liquid flows into from the right-hand member inlet, through a bend, flows out from the right-hand member outlet.
Second kind of structure consulted shown in Figure 3.This kind structure for a change inertia channel length and the inertia channel body, the inertia channel that is processed has two bends, passage is the square-section.Compare with first kind of structure and to have more a bend, passage length is longer.Under the guidance of this design philosophy, can on identical inertia channel matrix, process the inertia channel of more bends, make the length of inertia channel longer.
The third structure is consulted shown in Figure 4.This kind structure for a change the inertia channel shape of cross section and the inertia channel body, become round section by original square-section.Under the guidance of this design philosophy, can be according to actual conditions, the inertia channel of processing different cross section shape on identical inertia channel matrix.
The 4th kind of structure consulted shown in Figure 5.This kind structure has two independently inertia channels, and how the entrance and exit of two pairs of liquid has been equivalent to an inertia channel body.Two independently the inertia channel structure be in rotational symmetry.In last three kinds of structures, liquid in the hydraulic mount only with from a side inflow of main circlip shape in inertia channel, and in this structure, liquid can be from the both sides of main circlip shape flow into separately inertia channel through two inlets of inertia channel body simultaneously, enters liquid chamber then.Under the guidance of this design philosophy, can be according to actual conditions, the inertia channel of a plurality of entrance and exits of processing on identical inertia channel matrix.
The 5th kind of structure consulted shown in Figure 6.This kind structure is equivalent to two inertia channel structure centering symmetries independently in the 4th kind of structure.This be because, the exit position close proximity of two inertia channels can weaken the support strength of inertia channel body like this in the 4th kind of structure, the side force that when centrosymmetric structure also helps the inflow and outflow of balance liquid the inertia channel body is produced.
Note that when adopting the inertia channel body of these five kinds of different structures, former rubber spring should correspondingly change in the structure of feeder connection position, make it and the new construction coupling, otherwise having some setbacks or stop up can flow of liquid take place the time influences anti-vibration performance.
The present invention's----hydraulic suspension of automobile cab, its buffer limit piece 3 can have multiple version.Under the prerequisite that satisfies basic buffer limit effect, the structure of buffer limit piece can help improving the vibration isolating effect of hydraulic mount.
First kind of structure consulted shown in Figure 7.Its structure is that a rectangle buffer limit piece and axle sleeve are by being welded to connect.Since be the rectangular block architecture of solid, so intensity is higher, good reliability, but damping of vibrations is not obvious.
Second kind of structure consulted shown in Figure 8.This buffer limit piece is a kind of structure that is similar to plektron.When wherein design-calculated plektron stay bearing plate carries out catenary motion with axle sleeve, liquid in the following liquid chamber there is beating action, the effect of mixing power can be quickened liquid flowing in liquid chamber up and down, increase flow, make the increasing of liquid along the journey degradation of energy, cut down more vibrational energy, mixing power effect itself simultaneously also can consume a part of vibrational energy, and the vibration isolation effect of hydraulic mount is further strengthened.
The third structure is consulted shown in Figure 9.This buffer limit piece is a kind of structure of throttling pass.Last orifice plate interlocks, and is riveted on the connecting pin connecting pin and axle sleeve welding together.When last orifice plate carries out catenary motion with axle sleeve, liquid will be moving with the external backflow in chamber in the chamber that last orifice plate is formed, and can consume certain energy when the passage of flow through cross section sudden contraction or expansion.Consult shown in Fig. 9 (c), the correspondence position of upper and lower plates has the hole of different-diameter, is equivalent to the passage of different cross section, when liquid flows therein, can consume certain vibrational energy, thereby play certain vibration isolating effect.Be noted that, on orifice plate, designed locating piece small end and big end, on up-hole plate, be processed with the draw-in groove of respective width, when assembling, guaranteed relative this principle in hole of orifice plate different-diameter.
The 4th kind of structure consulted shown in Figure 10.This buffer limit piece is a kind of structure that has air chamber, and the single-piece structural representation is consulted shown in Figure 10 (b).The air chamber body itself is equivalent to a connecting pin and axle sleeve weld together, is filled with the gas of certain pressure in piston and the air chamber body osed top space, and the piston bottom dead point is limited by air chamber cover.When hydraulic mount was subjected to disturbance force, the pressure in the following liquid chamber can change, and the power that acts on the piston correspondingly changes.Under the effect of this power, piston is up-and-down movement, makes the volume of confining gas in continuous variation, and this motion process can consume certain vibrational energy, thereby strengthens the vibration isolation effect of hydraulic mount.Be noted that this mechanism be owing to need seal gas, so leak tightness to get well, processing and assembly precision are had certain requirement.
The working environment of above-mentioned four kinds of structures all is in liquid, owing to be immersed in the liquid for a long time, structure member there are certain erosion and infringement, suggestion is in the process of polysulphide rubbers master spring, each part outside face to the buffer limit structure also vulcanizes the thin rubber layer of one deck, consult shown in the middle buffer limit piece part of Fig. 1 and Fig. 8 (b), buffer limit block part and fluid separation applications are come, thus the service life of improving hydraulic mount.
Claims (8)
1. hydraulic suspension of automobile cab, mainly by last, following liquid chamber, housing, the buffer limit piece, the inertia channel body, counterdie, rubber spring, metallic framework and base are formed, it is characterized in that, said housing (2) is a loop configuration, be embedded on the base (9), described rubber spring (6) with its in, metallic framework on the outer rim (7) sulfuration connects, described inertia channel body (4) is a loop configuration, which is provided with annular inertia channel (11) and have the decoupling zero passage (10) of shock damping action, metallic framework (7), rubber spring (6) and buffering limiting stopper (3) constitute liquid chamber (8) down, inertia channel body (4) constitutes upper liquid chamber (1) with counterdie (5), on, following liquid chamber (1,8) liquid flows by inertia channel (11) in.
2. hydraulic suspension of automobile cab according to claim 1 is characterized in that, adopts interference fit between metallic framework (7) on described inertia channel body (4) and housing (2) inner edge and the rubber spring (6) and between housing (2) and the base (9).
3. hydraulic suspension of automobile cab according to claim 1 is characterized in that, described inertia channel (11) has at least one bend, and passage is rectangle, circle or other geometric configuration cross section.
4. hydraulic suspension of automobile cab according to claim 1, it is characterized in that, described inertia channel (11) has at least two autonomous channels, have at least 1 pair of liquid inlet and outlet on each autonomous channel, passage is rectangle, circle or other geometric configuration cross section, have two or more bends, each autonomous channel is by rotational symmetry or center symmetric arrangement.
5. hydraulic suspension of automobile cab according to claim 1 is characterized in that, described buffer limit piece (3) is a Filled Rectangle piece.
6. hydraulic suspension of automobile cab according to claim 1 is characterized in that, described buffer limit piece (3) is the plektron stay bearing plate, is rigidly connected by a connecting pin and axle sleeve.
7. hydraulic suspension of automobile cab according to claim 1 is characterized in that, described buffer limit piece (3) is made up of upper and lower two orifice plates, the aperture difference of the corresponding aperture on the upper and lower orifice plate.
8. hydraulic suspension of automobile cab according to claim 1 is characterized in that, described buffer limit piece (3) is a little cylinder, and the inside is full of the gas of certain pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100675311A CN101648581B (en) | 2009-09-15 | 2009-09-15 | Hydraulic suspension of automobile cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100675311A CN101648581B (en) | 2009-09-15 | 2009-09-15 | Hydraulic suspension of automobile cab |
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| Publication Number | Publication Date |
|---|---|
| CN101648581A CN101648581A (en) | 2010-02-17 |
| CN101648581B true CN101648581B (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100675311A Expired - Fee Related CN101648581B (en) | 2009-09-15 | 2009-09-15 | Hydraulic suspension of automobile cab |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700630A (en) * | 2012-07-06 | 2012-10-03 | 合肥晨兴汽车零部件有限公司 | Cab liquid-filled rubber suspension |
| CN111219440A (en) * | 2019-11-11 | 2020-06-02 | 浙江零跑科技有限公司 | Engine suspension |
| CN112060900B (en) * | 2020-10-10 | 2022-04-05 | 上海汽车集团股份有限公司 | Automobile, power assembly suspension system and torsion-resistant pull rod thereof |
| CN112784453B (en) * | 2020-12-31 | 2023-03-21 | 华南理工大学 | Prediction method for impact noise of hydraulic suspension decoupling film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781080Y (en) * | 2005-03-11 | 2006-05-17 | 宁波拓普减震系统有限公司 | Bush hydraulic damped suspension |
| CN101368611A (en) * | 2008-06-06 | 2009-02-18 | 奇瑞汽车股份有限公司 | Hydraulic damp suspending apparatus and its assembling method |
| CN201516876U (en) * | 2009-09-15 | 2010-06-30 | 吉林大学 | Automobile cab hydraulic suspension |
-
2009
- 2009-09-15 CN CN2009100675311A patent/CN101648581B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781080Y (en) * | 2005-03-11 | 2006-05-17 | 宁波拓普减震系统有限公司 | Bush hydraulic damped suspension |
| CN101368611A (en) * | 2008-06-06 | 2009-02-18 | 奇瑞汽车股份有限公司 | Hydraulic damp suspending apparatus and its assembling method |
| CN201516876U (en) * | 2009-09-15 | 2010-06-30 | 吉林大学 | Automobile cab hydraulic suspension |
Non-Patent Citations (3)
| Title |
|---|
| JP昭63-195442A 1988.08.12 |
| JP特开2001-227580A 2001.08.24 |
| JP特开2006-97788A 2006.04.13 |
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| CN101648581A (en) | 2010-02-17 |
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