CN202674143U - Transverse oscillating damper for locomotive vehicles - Google Patents
Transverse oscillating damper for locomotive vehicles Download PDFInfo
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- CN202674143U CN202674143U CN 201220146470 CN201220146470U CN202674143U CN 202674143 U CN202674143 U CN 202674143U CN 201220146470 CN201220146470 CN 201220146470 CN 201220146470 U CN201220146470 U CN 201220146470U CN 202674143 U CN202674143 U CN 202674143U
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Abstract
The utility model relates to a transverse oscillating damper for locomotive vehicles and belongs to the technical field of the locomotive vehicles. The oscillating damper comprises a pressure cylinder arranged in an oil storage cylinder. An oil return cavity is formed between the oil storage cylinder and the pressure cylinder. The pressure cylinder is matched with an ex-circle of a piston on the head portion of a piston rod. The piston rod extends from the other end of the oil storage cylinder, far away from an installation end, and is fixedly connected with the other installation end provided with a dustproof barrel. An end cover is fixed in the other end of the oil storage cylinder. The end cover and a bottom valve are respectively provided with a damping valve and a first one-way valve. A second one-way valve is arranged on the piston. One end of the end cover is provided with a step hole. The hole bottom of the step hole is provided with a reducing hole, and the reducing hole and the piston rod form a ring-shaped groove. The reducing hole is communicated with the interior of the pressure cylinder. The portion of the end cover, corresponding to the reducing hole, is provided with the damping valve arranged along the radial direction, and an axial oil return tube communicated with the oil return cavity. The transverse oscillating damper is good in processing and assembling process, and good in damping effect. Moreover, compressing damping force and stretching damping force are basically equal, and symmetrical rate can reach more than 90 percent.
Description
Technical field
The utility model relates to a kind of vibration damper, and especially a kind of used for rolling stock lateral damper belongs to the rolling stock technical field.
Background technique
Vibration damper is the important device of decay vehicle suspension system vibration.The effect of lateral damper is to suppress car body with respect to the transverse movement of bogie, and yaw and yawing, the transverse vibration with decay car body or compartment significantly improves the comfort level of taking rolling stock, reduce the abrasion of vehicle associated components, guarantee the rolling stock security of operation.
Understand according to the claimant, existing lateral damper can be divided into the types such as outside outstanding gas bag, the outside outstanding gas bag of nothing are arranged substantially.More than various typical structures in use, not only all exist complex structure, oil impregnate to have a big risk and overhaul inconvenience etc. shortcoming, and owing to there is not simple and effective froth breaking structure, therefore be easy to because bubble coalescence produces elliptical gear, reduce vibration damper stability even leakage of oil.
Retrieval finds, it is a kind of for the lateral damper on the rolling stock that application number is that the Chinese patent of CN200820036974.5 discloses, and connects piston rod at left assembly department, and the end of piston rod is provided with piston; Be fixedly connected with fuel tank at right assembly department, be provided with cylinder barrel in the fuel tank, piston stretch in the cylinder barrel and be tightly connected, be provided with back pressure valve in the cylinder barrel bottom, offer the opening that is communicated with cylinder barrel internal cavities and oil storage chamber on the back pressure valve, between cylinder barrel and fuel tank left part, be provided with guide holder, piston rod inserts guide holder and is dynamically connected with its sealed sliding, guide holder is provided with mounting hole, the mounting hole left end adjusting nut that is spirally connected, adjusting nut is provided with annular rim to the right, be plugged with the Regulation spring that right-hand member stretches out this chimb in annular rim, Regulation spring right-hand member buckle closure has spring seat, and the lid of spring seat is provided with the inlet opening with cylinder barrel cavity normal open, spring seat is provided with the liquid outlet opening with the oil storage chamber normal open, and left assembly department is fixedly connected with dust proof tube to the right.Although it can be fluid heat and the characteristics of dissipation with the system vibration Conversion of Energy that this technological scheme has, orifice valve is installed in the inclined hole, and manufacturability is relatively poor, inconvenience when guide holder processing and damping force are adjusted.And there is certain risk of leakage in the end face seal that adopt its cylinder barrel both sides.In addition, application number is the lateral damper that the Chinese patent of CN201010504933.6 discloses a kind of double-acting valve structure, make the absorber damping force be comparable to compression damping power, thereby satisfied the specific position requirement that vibration damper is installed, can under the horizontal positioned state, work; The size of the recovery damping force of the vibration damper in the utility model is controlled by the quantity of regulating size, quantity and adjustable valve block B and the adjustable valve block C in normal open hole on the rebuilt valve side; The height of the large smallest number of opening and valve seat upper valve base step is controlled on the quantity of the size of the compression damping power of the vibration damper in the utility model by regulating adjustable valve block A, the valve seat.The double-acting valve structure lateral damper of this technological scheme refers to be mainly used in the oil-pressure damper of automobile, and the damping force value that it provides is little, and the deviation between recovery damping force (stretching damping force) and the compression damping power is larger.
The model utility content
Primary and foremost purpose of the present utility model is: for the shortcoming that above-mentioned prior art exists, propose a kind of good manufacturability, sealing is reliable, and damping is good, the used for rolling stock lateral damper of compression and stretching damping force almost symmetry.
The further purpose of the utility model is: propose a kind of used for rolling stock lateral damper with reasonable froth breaking structure, thereby significantly improve the stability of vibration damper.
In order to reach above primary and foremost purpose, used for rolling stock lateral damper of the present utility model comprises that an end is fixedly mounted on pressure cylinder in the oil storage cylinder mounting end by bottom valve, forms oil back chamber between described oil storage cylinder and the pressure cylinder, in the described pressure cylinder piston is housed; The piston rod of described piston stretches out from the other end of oil storage cylinder away from mounting end, and is connected with another mounting end that dust proof tube is housed; Endoporus fixedly is housed in the other end of described oil storage cylinder becomes sealing end cap movingly with piston rod, described end cap and bottom valve are equipped with respectively the first one-way valve that the orifice valve of when piston is overhanging to move the fluid in pressure cylinder malleation chamber being transported to oil back chamber and the fluid that allows oil back chamber enter negative cavity; The second one-way valve that fluid that piston inside contracts when motion authorized pressure cylinder malleation chamber enters negative cavity is housed on the described piston, its improvements are: an end of the contiguous pressure cylinder of described end cap has the step hole that is sealed and matched with the formation of pressure cylinder cylindrical, has the undergauge hole that forms circular groove with piston rod at the bottom of the hole of described step hole, described undergauge hole is communicated with pressure cylinder is interior, and the orifice valve that radially arranges and the axial return tube that is communicated with oil back chamber are equipped with in place, the corresponding undergauge of described end cap hole.
Because the structures such as orifice valve of the present utility model, spill port radially or axially arrange respectively, therefore processing, assembly process process are good, and solve easily sealing problem, help simplified structure.Simultaneously, because the moving direction of orifice valve valve body is substantially vertical with the piston movement direction, so damping is better, and its compression and stretching damping force are basically identical, and symmetrical rate can reach more than 90%.
Lateral damper is owing to its structural feature, and inner fluid and contact with air area are larger, and the air in the oil circulation process in the oil storage cylinder very easily enters fluid and produces bubble.After the fluid of bubbles is inhaled into pressure cylinder inside, will make the vibration damper unstable properties.For this reason, the utility model has been taked following a series of froth breaking measures: the bottom of described oil storage cylinder arranges fuel sucking pipe, the froth breaking plate that forms the gap with pressure cylinder is equipped with in the termination of described piston rod, and the proximal cover chamber upside of described pressure cylinder has the throttle orifice that is communicated with oil back chamber.
Like this, because fuel sucking pipe is positioned at the oil storage cylinder downside, be in below the pasta, therefore can effectively reduce the possibility of Bubble formation; Even there is the part bubble to enter pressure cylinder away from the end cap chamber with fluid, the oily passage of narrow mistake that froth breaking plate and pressure cylinder gap form will hinder the formation of larger bubble.And be arranged in pressure cylinder proximal cover chamber upside throttle orifice can be in action with the air exhausting of upside to the oil storage cylinder urceolus, thereby significantly suppress the generation of bubble, make the damping property of vibration damper stable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is an embodiment's of the utility model structural representation.
Embodiment
Embodiment one
The used for rolling stock lateral damper of present embodiment comprises that an end is fixedly mounted on pressure cylinder 7 in the oil storage cylinder 11 mounting end A by bottom valve 10 as shown in drawings, forms oil back chamber B between oil storage cylinder 11 and the pressure cylinder 7.Piston 9 is housed in the pressure cylinder 7.The piston rod 1 of piston 9 stretches out from the other end of oil storage cylinder 11 away from mounting end A, and is connected with another mounting end E that dust proof tube is housed.Piston 9 stretches in the pressure cylinder 7 and with its slipper seal and is connected, and forms away from end cap chamber C between piston 9 right sides and bottom valve 10.
Endoporus fixedly is housed in the other end of oil storage cylinder 11 and piston rod 1 is sealing end cap 4 movingly.End cap 4 internal faces and piston rod 1 mating area are provided with the lining 18 for piston rod 1 guiding.Jam nut 2 is connected by screw thread and oil storage cylinder 11 inwalls and is pressed on the end cap 4.When end cap 4 is equipped with the overhanging motion of piston the fluid in pressure cylinder malleation chamber is transported to the orifice valve 5,17 of oil back chamber B, be provided with the inlet port 12 that is communicated with oil storage cylinder on the bottom valve 10 down, and the fluid of permission oil back chamber enters the first one-way valve 13 of negative cavity by inlet port 12 and the fuel sucking pipe 14 that is arranged on oil storage cylinder 11 bottoms.The second one-way valve 8 that fluid that piston inside contracts when motion authorized pressure cylinder malleation chamber enters negative cavity is housed on the piston.One end of end cap 4 contiguous pressure cylinders 7 has the step hole that is sealed and matched with the formation of pressure cylinder 7 cylindricals, has the undergauge hole F that forms circular groove with piston rod at the bottom of the hole of this step hole, undergauge hole F is communicated with pressure cylinder is interior, and proportional damping valve 7 and the overflow orifice valve 17 that radially arranges is equipped with at F place, end cap 4 corresponding undergauge hole.Two valves are relatively for structural representation among the figure, and during as installed, proportional damping valve 7 and overflow orifice valve 17 all are positioned at bottom, undergauge hole, and the axial return tube G that is communicated with oil back chamber B of a side setting.In addition, the froth breaking plate 16 that forms the annular space with pressure cylinder 7 is equipped with in the termination of piston rod 1 by axial bolts 15, when vibration damper is in compression stroke, hydraulic oil enters piston 9 inside by the gap between froth breaking plate 16 and the pressure cylinder 7, and the second one-way valve 8 that struts the piston left side enters pressure cylinder 7 proximal cover chambeies.The proximal cover chamber upside of pressure cylinder has the throttle orifice 6 that is communicated with oil back chamber B.This throttle orifice 6 makes pressure cylinder 7 proximal cover chambeies and oil storage cylinder 11 oil back region B keep the state of normal open.3 is outside framework oil seals among Fig. 1, is used for the motive sealing of shock absorber piston rod low pressure.
During work, the vibration damper of present embodiment is when stretching and compress, and fluid all produces damping by the orifice restriction effect of the proportional damping valve on the end cap and overflow orifice valve.
When vibration damper was in stretching travel, because the second one-way valve 8 on the piston 9 is closed, fluid can only pass through from proportional damping valve 5 and the overflow orifice valve 17 of end cap 4, produces thus damping.Away from forming negative pressure in the inherent drawing process of end cap chamber B, cause the first one-way valve 13 on the bottom valve to be opened, by oil pipe 14 on the bottom valve 10, from oil storage cylinder 11 bottom reserve inspiration fluid.
When vibration damper is in compression stroke, because the first one-way valve 13 on the bottom valve 10 is closed, hydraulic oil away from the end cap chamber can only enter by the gap between froth breaking plate 16 and the pressure cylinder 7 piston 9 inside, and the second one-way valve 8 that struts piston 9 left sides enters pressure cylinder 7 proximal cover chambeies.Because large away from the fluid sectional area ratio proximal cover chamber in end cap chamber, the hydraulic oil in the proximal cover chamber can only pass through unique passage, proportional damping valve 5 and overflow orifice valve 17 on the end cap 4 pass through, and produce thus damping.The principle of compression stretching side symmetry is: because the section area of piston rod is about the pressure cylinder inner hole section amasss half, basically identical by the fluid flow of orifice valve when velocity of piston is identical, consequent damping force value is also basically identical.
The froth breaking plate 16 on piston 7 right sides makes the fluid in the compression stroke need be by a narrow annular pass, thereby can suppress to enter the proximal cover chamber away from bubble larger in the end cap chamber by this passage, causes the unstable of vibration damper performance when avoiding eventually by orifice valve.
Pressure cylinder 7 left hand external stepped area are equipped with the throttle orifice 6 that penetrates pressure cylinder 7 wall thickness, and this throttle orifice 6 is as the part of this resistance of shock absorber generation systems, and itself and oil storage cylinder 11 reserves keep normal open.When gathering a small amount of air away from the end cap top of chamber, can in time get rid of.
The vibration damper that experiment showed, present embodiment mainly has following remarkable advantage:
1, not only can produce the larger damping that is applicable to rolling stock, and compression and stretching damping force realize substantially unanimously, the symmetrical rate of multiple spot speed can reach more than 90%.
2, good manufacturability, mounting structure is simple, decomposes maintenance conveniently.
3, have rational froth breaking structure, but bubble forms in the establishment pressure cylinder, guarantee that damping property is stable.
4, the piston rod steering capability is good, reliable operation.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (7)
1. used for rolling stock lateral damper comprises that an end is fixedly mounted on pressure cylinder in the oil storage cylinder mounting end by bottom valve, forms oil back chamber between described oil storage cylinder and the pressure cylinder, in the described pressure cylinder piston is housed; The piston rod of described piston stretches out from the other end of oil storage cylinder away from mounting end, and is connected with another mounting end that dust proof tube is housed; Endoporus fixedly is housed in the other end of described oil storage cylinder becomes sealing end cap movingly with piston rod, described end cap and bottom valve are equipped with respectively the first one-way valve that the orifice valve of when piston is overhanging to move the fluid in pressure cylinder malleation chamber being transported to oil back chamber and the fluid that allows oil back chamber enter negative cavity; The second one-way valve that fluid that piston inside contracts when motion authorized pressure cylinder malleation chamber enters negative cavity is housed on the described piston, it is characterized in that: an end of the contiguous pressure cylinder of described end cap has the step hole that is sealed and matched with the formation of pressure cylinder cylindrical, has the undergauge hole that forms circular groove with piston rod at the bottom of the hole of described step hole, described undergauge hole is communicated with pressure cylinder is interior, and the orifice valve that radially arranges and the axial return tube that is communicated with oil back chamber are equipped with in place, the corresponding undergauge of described end cap hole.
2. used for rolling stock lateral damper according to claim 1 is characterized in that: on the bottom valve of the bottom of described oil storage cylinder fuel sucking pipe is set.
3. used for rolling stock lateral damper according to claim 1 and 2 is characterized in that: the froth breaking plate that forms the gap with pressure cylinder is equipped with in the termination of described piston rod.
4. used for rolling stock lateral damper according to claim 3, it is characterized in that: the proximal cover chamber upside of described pressure cylinder has the throttle orifice that is communicated with oil back chamber.
5. used for rolling stock lateral damper according to claim 4 is characterized in that: described orifice valve comprises proportional damping valve and the overflow orifice valve that place, the corresponding undergauge of described end cap hole radially arranges.
6. used for rolling stock lateral damper according to claim 5, it is characterized in that: described proportional damping valve and overflow orifice valve all are positioned at bottom, undergauge hole, the axial return tube that a side setting is communicated with oil back chamber.
7. used for rolling stock lateral damper according to claim 6, it is characterized in that: described end cap internal face and piston rod mating area are provided with lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146470 CN202674143U (en) | 2012-04-01 | 2012-04-01 | Transverse oscillating damper for locomotive vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146470 CN202674143U (en) | 2012-04-01 | 2012-04-01 | Transverse oscillating damper for locomotive vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674143U true CN202674143U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146470 Expired - Lifetime CN202674143U (en) | 2012-04-01 | 2012-04-01 | Transverse oscillating damper for locomotive vehicles |
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| CN (1) | CN202674143U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606667A (en) * | 2012-04-01 | 2012-07-25 | 常州朗锐凯迩必减振技术有限公司 | Transverse shock absorber for locomotives |
| CN104411998A (en) * | 2013-03-28 | 2015-03-11 | 萱场工业株式会社 | Shock absorber |
| CN106523570A (en) * | 2016-12-30 | 2017-03-22 | 江门市业成轨道设备有限公司 | Transverse oil-pressure shock absorber system for high-speed motor car |
| CN108571554A (en) * | 2018-06-20 | 2018-09-25 | 宁波力减震器有限公司 | Electromagnetism adjustable damping oil cylinder |
| CN109899435A (en) * | 2019-04-03 | 2019-06-18 | 扬州华交轨道交通科技有限公司 | A kind of external adjustable type damper of damping |
| CN110374950A (en) * | 2019-06-20 | 2019-10-25 | 中车青岛四方机车车辆股份有限公司 | The oil circuit control method and oil channel structures of damper, damper, vehicle |
| CN110425245A (en) * | 2019-07-22 | 2019-11-08 | 成都博仕腾科技有限公司 | A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping |
| CN112013072A (en) * | 2020-08-24 | 2020-12-01 | 科马智能悬架技术(青岛)有限公司 | Single-cylinder magnetorheological damper and vehicle |
| CN117536946A (en) * | 2023-12-29 | 2024-02-09 | 浙江路得坦摩汽车部件股份有限公司 | Damping linear change oil hydraulic cylinder with buffering function |
-
2012
- 2012-04-01 CN CN 201220146470 patent/CN202674143U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606667A (en) * | 2012-04-01 | 2012-07-25 | 常州朗锐凯迩必减振技术有限公司 | Transverse shock absorber for locomotives |
| CN102606667B (en) * | 2012-04-01 | 2014-10-08 | 常州朗锐凯迩必减振技术有限公司 | Transverse shock absorber for locomotives |
| CN104411998A (en) * | 2013-03-28 | 2015-03-11 | 萱场工业株式会社 | Shock absorber |
| CN104411998B (en) * | 2013-03-28 | 2016-04-13 | Ｋｙｂ株式会社 | Buffer |
| CN106523570A (en) * | 2016-12-30 | 2017-03-22 | 江门市业成轨道设备有限公司 | Transverse oil-pressure shock absorber system for high-speed motor car |
| CN108571554A (en) * | 2018-06-20 | 2018-09-25 | 宁波力减震器有限公司 | Electromagnetism adjustable damping oil cylinder |
| CN109899435A (en) * | 2019-04-03 | 2019-06-18 | 扬州华交轨道交通科技有限公司 | A kind of external adjustable type damper of damping |
| CN110374950A (en) * | 2019-06-20 | 2019-10-25 | 中车青岛四方机车车辆股份有限公司 | The oil circuit control method and oil channel structures of damper, damper, vehicle |
| CN110374950B (en) * | 2019-06-20 | 2021-02-09 | 中车青岛四方机车车辆股份有限公司 | Oil way control method and oil way structure of shock absorber, shock absorber and vehicle |
| CN110425245A (en) * | 2019-07-22 | 2019-11-08 | 成都博仕腾科技有限公司 | A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping |
| CN112013072A (en) * | 2020-08-24 | 2020-12-01 | 科马智能悬架技术(青岛)有限公司 | Single-cylinder magnetorheological damper and vehicle |
| CN112013072B (en) * | 2020-08-24 | 2022-01-18 | 科马智能悬架技术(青岛)有限公司 | Single-cylinder magnetorheological damper and vehicle |
| CN117536946A (en) * | 2023-12-29 | 2024-02-09 | 浙江路得坦摩汽车部件股份有限公司 | Damping linear change oil hydraulic cylinder with buffering function |
| CN117536946B (en) * | 2023-12-29 | 2024-04-30 | 浙江路得坦摩汽车部件股份有限公司 | Damping linear change oil hydraulic cylinder with buffering function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20141008 |
|
| RGAV | Abandon patent right to avoid regrant |