CN1235880A - Hydraulic support - Google Patents
Hydraulic support Download PDFInfo
- Publication number
- CN1235880A CN1235880A CN 98108191 CN98108191A CN1235880A CN 1235880 A CN1235880 A CN 1235880A CN 98108191 CN98108191 CN 98108191 CN 98108191 A CN98108191 A CN 98108191A CN 1235880 A CN1235880 A CN 1235880A
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- China
- Prior art keywords
- barrier film
- hydraulic support
- subchannel
- described hydraulic
- passage
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Abstract
The hydraulic bearing includes one working cavity filled with damping liquid and one balance cavity separated from each other by one partition board and communicated by the liquid in damping channel to damp low-frequency vibration. The damping channel consists of two serial-connected subchannels on the two sides of vibrative disphragm as a part of the partition board, and the diaphragm has channel separation, which has at least one gap for the communication of liquid inside the subchannels.
Description
The present invention relates to a kind of hydraulic support, it comprises working chamber and a counter balance pocket of a filling damping liquid, and both are separated from each other by dividing plate, and they connect by damp channel liquid conducting ground for the damping low-frequency vibration.
By the known this supporting of DE 32 23 700C1.Dividing plate comprises a barrier film with elastomeric material system, but barrier film has the subregion of mutual self-movement and is contained between the grid.Barrier film closely is fixed in the nozzle holder with its excircle, and damp channel has radial spacing ground round the outer circumferential sides of barrier film and thereby maximum gauge arranged.Therefore the diaphragm area that is used to isolate dither is smaller.
The objective of the invention is to improve this type of known hydraulic support, the length of damp channel that is used in the damping low-frequency vibration is big as far as possible.However, barrier film still should have big as far as possible being used to isolate the area of dither.
Reach this purpose by the feature of the present invention by claim 1.Dependent claims relates to favourable design.
For reaching this purpose regulation, damp channel is made of two subchannels, and they are arranged to series connection on operation principle; Subchannel is located at vibratile barrier film both sides vertically, and barrier film constitutes the part of dividing plate; And barrier film is provided with passage and cuts off, and the liquid conducting connection for subchannel has a breach at least in passage cuts off.The most handy elastomeric material of barrier film is made.By the operation principle series connection, make damp channel be useful on the length of damping low-frequency vibration by these two subchannels.Adopt this simple diaphragm structure, make it to see and to produce easily and cheaply from the viewpoint of process technology and economy.Cut off spatially subchannel is separated from each other and be connected to each other by the breach in passage cuts off with making the conducting of subchannel liquid by passage with a part that constitutes barrier film, such possibility is provided, promptly, damp channel is shifted towards center position from the dividing plate excircle, and thereby can utilize the outer perimeter zone of dividing plate so that improve the isolation of dither and cause reducing dynamic elasticity rate (Federrate) by means of a bigger barrier film open surface." barrier film open surface " refers to the hydraulic pressure useful effect face of barrier film.
The barrier film that is used to isolate dither can be contained in two of nozzle holder between half quiveringly.The two halves of nozzle holder for example can disconnect grid-likely, and barrier film can move back and forth along the direction of introducing vibration in its barrier film open zone.The two halves of nozzle holder for example available metal material are made.
Half mutual transition that each subchannel can be designed to nozzle holder is an one.Therefore hydraulic support is the few structure of a kind of part number generally and can assembles easily.In addition, therefore the manufacturing of hydraulic support is also simplified.
Subchannel respectively has a channel shape cross-section, and cross section is vertically towards barrier film direction opening; The side of subchannel and the passage of barrier film cut off closely supporting mutually under the axial pre tightening force effect.This design is favourable when barrier film is made with elastomeric material.Because no longer need any secondary seal servicing unit in this case in order to seal subchannel.Two half-sums of nozzle holder are attached thereto the all-in-one-piece subchannel and can for example make by the die casting of aluminium alloy.So do not have any difficulty because the geometry of member is simply done like this.
Passage cuts off first reinforcement that is provided with ring-type.Therefore the elasticity of barrier film further reduces in passage cuts off the district and prevents to produce relaxation.
Subchannel is designed to respect to the barrier film mirror-symmetrical.The manufacturing of nozzle holder can come further to simplify like this, that is, the two halves of nozzle holder can use same member.
The radial dimension of dividing plate equals 1.5 at least with the ratio of subchannel radial dimension." radial dimension " refers to the average diameter at the maximum gauge and the damp channel of working chamber internal partition.Adopt such ratio, guarantee that the barrier film open surface is greater than connecting with bearing and constituting the equivalent piston cross section of the elastic component on working chamber border with dividing plate.This elastic component is designed to ring-type and conulite.
Preferably around a central area of barrier film, the thickness of central area is less than the thickness of passage partition for subchannel.It is favourable doing like this, because only septate passage cuts off bigger thickness is arranged, and cuts off the subchannel sealing reliably each other that closely contacts so that make under the effect of elasticity pretightning force with passage.The barrier film central area that is centered on by subchannel and outside gusset constituted the open surface of barrier film around the barrier film subregion of subchannel, and be that the isolation of dither is responsible for.By cutting off smaller thickness is arranged, can be moved especially well in the barrier film open zone, along the direction that imports vibration so isolated dither admirably with respect to passage.
Central area can be established an excess pressure valve at least.Excess pressure valve can be not for example be removed the otch that material makes basically by one and is constituted.Therefore having significantly impact type load can be in the inner pressure peak that causes danger of supporting.This excess pressure valve impels the rapid balance of pressure between the counter balance pocket that working chamber and volume can change.
Barrier film radially has a thickness outside passage cuts off, this thickness basically with the consistency of thickness of central area, and the neighboring all has in every respect under the situation of spacing and is centered on by nozzle holder.Therefore the isolation of dither further improves, because barrier film does not almost have hardening in the stroke of minimum.
Barrier film radially can be provided with flange shape first of the circumferential extension in an edge and thicken between the border of subchannel and nozzle holder outer circumferential sides at least; First thickens radially and is thickened covering by web-like second.First and second thicken and preferably are located at the barrier film both sides vertically, wherein second thicken along circumferentially evenly distributing and all side spacing adjacent arrangements in ground being arranged mutually.Adopt this membrane shape, make barrier film when introducing low-frequency vibration, form mildly progressive resistance.Because membrane becomes expanded elastic characteristic (Membranblaehfedereigenschaften) is seriously non-linear, has avoided the bump that causes by the backstop of barrier film on nozzle holder.
In order to improve the rigidity of barrier film in buildup area, can stipulate that barrier film strengthens by second reinforcement.
Describe in detail by hydraulic support of the present invention by means of accompanying drawing below.
The embodiment that represents hydraulic support among the figure by cross section.This supporting comprises a bearing 17 and an elastic component 22 and a support 23 that is designed to ring-type and taper, and wherein, elastic component is made by elastomeric material and sulfided with bearing 17 and support 23.Hydraulic support has working chamber 2 and counter balance pocket 3 of a filling damping liquid 1, and counter balance pocket 3 is applicable to that essentially no pressure ground receives the damping liquid 1 of discharging from working chamber 2.Working chamber 2 is the boundary with bearing 17, elastic component 22 and dividing plate 4.Counter balance pocket 3 is the boundary with dividing plate 4 with by the bellows (Rollbalg) 24 of elastomeric material system.Working chamber 2 and counter balance pocket 3 by damp channel 5 liquid conductings be connected to each other, damp channel 5 constitutes part of dividing plates 4 and is made up of two subchannels 6,7.First subchannel be designed to nozzle holder 13 first half 11 be transited into one mutually, second of second subchannel 7 and nozzle holder 13 half 12 be transited into one mutually, nozzle holder 13 is made with the aluminium of die casting in the present embodiment.Be contained in before the two halves 11,12 of nozzle holder 13 by the barrier film 8 of elastomeric material system, barrier film 8 radially has different thickness mutually.For making two subchannels sealed to each other, barrier film 8 has a passage to cut off 9, and it is designed to, and the subregion of adjacency is thick with it than radially both sides.Passage cuts off 9 first reinforcement, 28, the second reinforcements 29 that are provided with annular and radially fuses in the outside and first reinforcement 28, second reinforcement radially with the whole region overlapping that thickens 20,21.From this structure of the viewpoint of being convenient to make outstanding advantage is arranged.Different with it, these two reinforcements 28,29 also can be designed to two sections.A kind of toughness material manufacturing of reinforcement 28,29 usefulness, for example metal or polymer.Subchannel 6,7 has the form of annular groove and a side opening that faces one another at them.In their zone of end 14, subchannel 6,7 cuts off on 9 closely being pressed in passage under the axial pre tightening force effect.In order to be connected on liquid conducting ground between working chamber 2 and the counter balance pocket 3, first subchannel 6 has an import 25, and passage cuts off 9 a breach 10, and second channel 7 has the outlet 26 of a feeding counter balance pocket 3.
Two subchannels 6,7 are arranged to series connection by operation principle, and the radial dimension 15 of dividing plate 4 equals 2.5 with the ratio of the radial dimension 16 of subchannel 6,7 in this embodiment.As the diameter on this ratio basis, by constituting at the diameter of the dividing plate 4 of working chamber 2 inside and the average diameter of subchannel 6,7.
The central area 18 of barrier film 8 is disconnected by an otch that constitutes excess pressure valve.One gusset in the neighboring of central area 18 and barrier film 8 is around the subregion of subchannel 6,7, is designed to significantly to cut off than passage 9 thin.Proved already particularly advantageously to be that passage cut off 9 thickness and equals 2 with the ratio maximum of the thickness of adjacent region radially.The isolation of dither is effective especially in this case, and guarantees that two subchannels have reliable sealing mutually.Barrier film 8 vertically both sides be provided with that two edges circumferentially extend flange shape first thicken 20, they are thickened 21 by second of web-like respectively and radially cover.First thickens 20 along circumferential closed in itself.Second thickens 21 along circumferentially evenly distributing, and has all side spacing adjacent arrangements in ground mutually.Provide this possibility by the design by this hydraulic support of the present invention, that is, the dynamic elasticity rate drops to and is lower than basic spring rate, is in the frequency range that is higher than 180Hz, and thereby obtains postcritical characteristic.Require the equivalent piston cross section 27 of barrier film open surface greater than elastic component 22 for this reason.
By thicken 20,21 when introducing low-frequency vibration barrier film 8 form mildly progressive resistance, meanwhile the isolation of dither is extremely successful, because barrier film 8 has the axial free travel in nozzle holder 13 inside in its restricted area, neighboring, and thereby when minimum stroke, has only negligible small hardening.
Claims (14)
1. hydraulic support, working chamber and a counter balance pocket of comprising a filling damping liquid, they are separated from each other by dividing plate, they connect by damp channel liquid conducting ground for the damping low-frequency vibration, it is characterized by: damp channel (5) is made of two subchannels (6,7), and they are arranged to series connection on operation principle; Subchannel (6,7) is located at vibratile barrier film (8) both sides vertically, and barrier film constitutes a part of dividing plate (4); And barrier film (8) is provided with passage and cuts off (9), and the liquid conducting connection for subchannel (6,7) has a breach (10) at least in passage cuts off (9).
2. according to the described hydraulic support of claim 1, it is characterized by: the barrier film (8) that is used to isolate dither can be contained between two half (11,12) of nozzle holder (13) quiveringly.
3. according to the described hydraulic support in one of claim 1 or 2, it is characterized by: each subchannel (6,7) is designed to be transited into one mutually with one half (11,12) of nozzle holder (13).
4. according to the described hydraulic support of one of claim 1 to 3, it is characterized by: subchannel (6,7) respectively has a kind of channel shape cross-section, and it is vertically towards the direction opening of barrier film (8); And the side (14) of subchannel (6,7) and the passage of barrier film (8) cut off (9) closely supporting mutually under the axial pre tightening force effect.
5. according to the described hydraulic support of claim 4, it is characterized by: passage cuts off first reinforcement (28) that (9) are provided with ring-type.
6. according to the described hydraulic support of one of claim 1 to 5, it is characterized by: subchannel (6,7) is designed to respect to barrier film (8) mirror-symmetrical.
7. according to the described hydraulic support of one of claim 1 to 6, it is characterized by: the radial dimension (15) of dividing plate (4) equals 1.5 at least with the ratio of the radial dimension (16) of subchannel (6,7).
8. according to the described hydraulic support of one of claim 1 to 7, it is characterized by: subchannel (6,7) is round the central area (18) of barrier film (8).
9. according to the described hydraulic support of claim 8, it is characterized by: the thickness of central area (18) cuts off the thickness of (9) less than passage.
10. according to the described hydraulic support in one of claim 8 or 9, it is characterized by: central area (18) is established an excess pressure valve (19) at least.
11. according to the described hydraulic support of one of claim 1 to 10, it is characterized by: barrier film (8) radially has a thickness outside passage cuts off (9), this thickness basically with the consistency of thickness of central area (18).
12. according to the described hydraulic support of one of claim 1 to 11, it is characterized by: barrier film (8) periphery side all has in every respect under the situation of spacing and is centered on by nozzle holder (13).
13. according to the described hydraulic support of one of claim 1 to 12, it is characterized by: barrier film (8) is provided with flange shape first of the circumferential extension in an edge at least and thickens (20) radially between the border of subchannel (6,7) and nozzle holder (13) outer circumferential sides; And.First thickens (20) is radially thickened (21) covering by web-like second.
14. according to the described hydraulic support of claim 13, it is characterized by: barrier film (8) strengthens by second reinforcement (29) in thickening (20,21) district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108191 CN1235880A (en) | 1998-05-19 | 1998-05-19 | Hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108191 CN1235880A (en) | 1998-05-19 | 1998-05-19 | Hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1235880A true CN1235880A (en) | 1999-11-24 |
Family
ID=5219569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98108191 Pending CN1235880A (en) | 1998-05-19 | 1998-05-19 | Hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1235880A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644692A (en) * | 2012-04-20 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Composite shock absorber |
| CN104315569A (en) * | 2014-08-12 | 2015-01-28 | 浙江省建筑设计研究院 | A vibration-insulating type composite-energy water heater |
| CN105972134A (en) * | 2016-06-22 | 2016-09-28 | 北汽福田汽车股份有限公司 | Hydraulic bushing, vehicle suspension system and vehicle |
| CN107740840A (en) * | 2017-11-20 | 2018-02-27 | 徐工集团工程机械有限公司 | Shock absorber and engineering truck |
| CN107906161A (en) * | 2017-12-12 | 2018-04-13 | 西安科飞机电科技有限公司 | Buffer |
| CN108474436A (en) * | 2016-01-25 | 2018-08-31 | 威巴克公司 | Hydraulic support with vacuum valve |
| CN110234902A (en) * | 2017-02-01 | 2019-09-13 | 威巴克公司 | Hydraulic support |
-
1998
- 1998-05-19 CN CN 98108191 patent/CN1235880A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644692A (en) * | 2012-04-20 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Composite shock absorber |
| CN102644692B (en) * | 2012-04-20 | 2015-05-20 | 株洲时代新材料科技股份有限公司 | Composite shock absorber |
| CN104315569A (en) * | 2014-08-12 | 2015-01-28 | 浙江省建筑设计研究院 | A vibration-insulating type composite-energy water heater |
| CN104315569B (en) * | 2014-08-12 | 2016-08-24 | 浙江省建筑设计研究院 | Iolation type compound energy water heater |
| CN108474436A (en) * | 2016-01-25 | 2018-08-31 | 威巴克公司 | Hydraulic support with vacuum valve |
| CN105972134A (en) * | 2016-06-22 | 2016-09-28 | 北汽福田汽车股份有限公司 | Hydraulic bushing, vehicle suspension system and vehicle |
| CN105972134B (en) * | 2016-06-22 | 2019-02-26 | 北汽福田汽车股份有限公司 | Hydraulic bushing, automobile suspension system and vehicle |
| CN110234902A (en) * | 2017-02-01 | 2019-09-13 | 威巴克公司 | Hydraulic support |
| CN110234902B (en) * | 2017-02-01 | 2021-02-05 | 威巴克公司 | Hydraulic support |
| US10941832B2 (en) | 2017-02-01 | 2021-03-09 | Vibracoustic Gmbh | Hydromount |
| CN107740840A (en) * | 2017-11-20 | 2018-02-27 | 徐工集团工程机械有限公司 | Shock absorber and engineering truck |
| CN107906161A (en) * | 2017-12-12 | 2018-04-13 | 西安科飞机电科技有限公司 | Buffer |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |