CN102606667A - Transverse shock absorber for locomotives - Google Patents
Transverse shock absorber for locomotives Download PDFInfo
- Publication number
- CN102606667A CN102606667A CN2012100976908A CN201210097690A CN102606667A CN 102606667 A CN102606667 A CN 102606667A CN 2012100976908 A CN2012100976908 A CN 2012100976908A CN 201210097690 A CN201210097690 A CN 201210097690A CN 102606667 A CN102606667 A CN 102606667A
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- oil storage
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- 239000006096 absorbing agent Substances 0.000 title abstract description 5
- 230000035939 shock Effects 0.000 title abstract description 5
- 230000003137 locomotive effect Effects 0.000 title abstract 3
- 238000013016 damping Methods 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 11
- 238000007906 compression Methods 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 35
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to a transverse shock absorber for locomotives, which belongs to the technical field of locomotives and comprises a pressure cylinder mounted in an oil storage cylinder. An oil return cavity is formed between the oil storage cylinder and the pressure cylinder, the pressure cylinder is peripherally matched with a piston on the head of a piston rod, and the piston rod extends out from the other end, away from a mounting end, of the oil storage cylinder and is fixedly connected with another mounting end with a dustproof tube. An end cover is fixed into the other end of the oil storage cylinder, a damping valve and a first one-way valve are mounted on the end cover and a bottom valve respectively, a second one-way valve is mounted on the piston, one end of the end cover is provided with a stepped hole, the bottom of the stepped hole is provided with a shrinkage hole which forms an annular groove with the piston rod, the shrinkage hole is communicated with the interior of the pressure cylinder, and a radial damping valve and an axial oil return pipe communicated with the oil return cavity are mounted on the end cover at the position corresponding to the shrinkage hole. The transverse shock absorber is high in processing and assembly manufacturability and more effective in damping, the compression damping force and the stretch damping force are basically uniform, and the symmetry rate can reach more than 90%.
Description
Technical field
The present invention relates to a kind of vibration damper, 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 the transverse movement of car body with respect to 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 types such as outside outstanding gas bag, the outside outstanding gas bag of nothing are arranged basically.More than various typical structures in use; Not only all exist complex structure, oil impregnate to have a big risk and overhaul shortcomings such as inconvenience; And owing to there is not simple and effective froth breaking structure, therefore be easy to impact, reduce vibration damper stability even leakage of oil because of bubble coalescence produces motion.
Retrieval finds that application number is that the Chinese patent of CN200820036974.5 discloses a kind of lateral damper that is used on the rolling stock, on left assembly department, connects piston rod, and the end of piston rod is provided with piston; Be fixedly connected 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, and 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; In annular rim, be plugged with right-hand member and stretch out the Regulation spring of this chimb, 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 dust proof tube to the right.Though 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, in guide holder processing inconvenience during with the damping force adjustment.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-purpose valve architecture; Make the vibration damper recovery 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 among the present invention is controlled through the quantity of regulating size, quantity and the adjustable valve block B and the adjustable valve block C in normal open hole on the rebuilt valve side; The height of the big 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 among the present invention through regulating adjustable valve block A, the valve seat.The double-purpose valve architecture lateral damper of this technological scheme is meant the oil-pressure damper that is mainly used in 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 bigger.
Summary of the invention
Primary and foremost purpose of the present invention is: to the shortcoming that above-mentioned existing technology exists, propose a kind of good manufacturability, sealing is reliable, and damping is good, the used for rolling stock lateral damper of compression and the basic symmetry of stretching damping force.
Further aim of the present invention 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 invention comprises that an end is fixedly mounted on the pressure cylinder in the oil storage cylinder mounting end through bottom valve, forms oil back chamber between said oil storage cylinder and the pressure cylinder, in the said pressure cylinder piston is housed; The piston rod of said 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; The other end internal fixation of said oil storage cylinder is equipped with endoporus and becomes sealing end cap movingly with piston rod, and said end cap and bottom valve are equipped with respectively when piston is overhanging to move transports to the orifice valve of oil back chamber and first one-way valve of the fluid entering negative cavity that allows oil back chamber with the fluid in pressure cylinder malleation chamber; The fluid that authorized pressure cylinder malleation chamber when contracting motion in the piston is housed on the said piston gets into second one-way valve of negative cavity; Its improvements are: an end of the contiguous pressure cylinder of said 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 said step hole; Said undergauge hole is communicated with pressure cylinder is interior, and orifice valve that radially is provided with and the axial return tube that is communicated with oil back chamber are equipped with in place, the corresponding undergauge of said end cap hole.
Because structures such as orifice valve of the present invention, spill port radially or axially are provided with respectively, therefore processing, assembly process process are good, and solve sealing problem easily, help simplified structure.Simultaneously, because the moving direction of orifice valve valve body is vertical basically with the piston motion direction, so damping is better, and its compression and stretching damping force basically identical, and symmetrical rate can reach more than 90%.
Lateral damper is owing to its structural feature, and inner fluid and air area of contact are bigger, and the air in the fluid cyclic process in the oil storage cylinder very easily gets into fluid and produces bubble.After the fluid that contains bubble is inhaled into pressure cylinder inside, will make the vibration damper unstable properties.For this reason, a series of froth breaking measures below the present invention has taked: the bottom of said oil storage cylinder is provided with fuel sucking pipe, and the froth breaking plate that forms the gap with pressure cylinder is equipped with in the termination of said piston rod, and the proximal cover chamber upside of said pressure cylinder has the throttle orifice that is communicated with oil back chamber.
Like this,, be in below the pasta, therefore can effectively reduce the possibility that bubble produces because fuel sucking pipe is positioned at the oil storage cylinder downside; Even there is the part bubble to get into pressure cylinder away from the end cap chamber with fluid, the oily passage of narrow mistake that the gap forms between froth breaking plate and the pressure cylinder will hinder the formation than gross blowhole.And be arranged in pressure cylinder proximal cover chamber upside throttle orifice can the air of upside be drained into the oil storage cylinder urceolus in action, 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 present invention is further described.
Accompanying drawing is the structural representation of one embodiment of the invention.
Embodiment
Embodiment one
The used for rolling stock lateral damper of present embodiment comprises that an end is fixedly mounted on the pressure cylinder 7 in the oil storage cylinder 11 mounting end A through bottom valve 10 shown in accompanying drawing, form 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 between piston 9 right sides and bottom valve 10, forms away from end cap chamber C.
Endoporus is housed the other end internal fixation 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 that is used for piston rod 1 guiding.Jam nut 2 is connected through screw thread and oil storage cylinder 11 inwalls and is pressed on the end cap 4.End cap 4 is equipped with the orifice valve 5,17 that piston overhanging when motion transport to the fluid in pressure cylinder malleation chamber oil back chamber B; Bottom valve 10 is provided with the inlet port 12 that is communicated with oil storage cylinder down, and the fluid of permission oil back chamber gets into first one-way valve 13 of negative cavities through inlet port 12 and the fuel sucking pipe that is arranged on oil storage cylinder 11 bottoms 14.The fluid that authorized pressure cylinder malleation chamber when contracting motion in the piston is housed on the piston gets into second one-way valve 8 of negative cavity.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 the proportional damping valve 7 and overflow orifice valve 17 that radially is provided with 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 all is positioned at bottom, undergauge hole with overflow orifice valve 17, 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 with pressure cylinder 7 formation annular spaces is equipped with through axial bolts 15 in the termination of piston rod 1; When vibration damper is in compression stroke; Hydraulic oil gets into piston 9 inside through the gap between froth breaking plate 16 and the pressure cylinder 7, and second one-way valve 8 that struts the piston left side gets into 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 through the orifice restriction effect of proportional damping valve on the end cap and overflow orifice valve.
When vibration damper was in stretching travel, because second one-way valve 8 on the piston 9 is closed, fluid can only pass through with overflow orifice valve 17 from the proportional damping valve 5 of end cap 4, produces damping thus.Away from forming negative pressure in the inherent drawing process of end cap chamber B, cause first one-way valve 13 on the bottom valve to be opened, through 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 first one-way valve 13 on the bottom valve 10 is closed; Hydraulic oil away from the end cap chamber can only get into piston 9 inside through the gap between froth breaking plate 16 and the pressure cylinder 7, and second one-way valve 8 that struts piston 9 left sides gets into pressure cylinder 7 proximal cover chambeies.Because big 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, the proportional damping valve 5 on the end cap 4 passes through with overflow orifice valve 17, produces damping thus.The principle of compression stretching side symmetry is: because the section area of piston rod is about half that the pressure cylinder inner hole section amasss, when velocity of piston was identical, through the fluid flow basically identical of orifice valve, consequent damping force value is basically identical also.
The froth breaking plate 16 on piston 7 right sides makes the fluid in the compression stroke need be through a narrow annular pass, thereby can suppress to get into the proximal cover chamber away from bubble bigger in the end cap chamber through this passage, causes the instability of vibration damper performance when avoiding eventually through orifice valve.
Pressure cylinder 7 left hand external stepped 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 little air, can in time get rid of away from the end cap top of chamber.
The vibration damper that experiment showed, present embodiment mainly has following remarkable advantage:
1, not only can produce the big damping that is applicable to rolling stock, and compression and stretching damping force realize basically consistently, 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, can effectively suppress bubble formation in the pressure cylinder, guarantee that damping property is stable.
4, the piston rod steering capability is good, reliable operation.
Except that the foregoing description, the present invention 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 requirement of the present invention.
Claims (7)
1. a used for rolling stock lateral damper comprises that an end is fixedly mounted on the pressure cylinder in the oil storage cylinder mounting end through bottom valve, forms oil back chamber between said oil storage cylinder and the pressure cylinder, in the said pressure cylinder piston is housed; The piston rod of said 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; The other end internal fixation of said oil storage cylinder is equipped with endoporus and becomes sealing end cap movingly with piston rod, and said end cap and bottom valve are equipped with respectively when piston is overhanging to move transports to the orifice valve of oil back chamber and first one-way valve of the fluid entering negative cavity that allows oil back chamber with the fluid in pressure cylinder malleation chamber; The fluid that authorized pressure cylinder malleation chamber when contracting motion in the piston is housed on the said piston gets into second one-way valve of negative cavity; It is characterized in that: an end of the contiguous pressure cylinder of said 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 said step hole; Said undergauge hole is communicated with pressure cylinder is interior, and orifice valve that radially is provided with and the axial return tube that is communicated with oil back chamber are equipped with in place, the corresponding undergauge of said 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 said 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 said piston rod.
4. used for rolling stock lateral damper according to claim 3 is characterized in that: the proximal cover chamber upside of said 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: said orifice valve comprises proportional damping valve and the overflow orifice valve that place, the corresponding undergauge of said end cap hole radially is provided with.
6. used for rolling stock lateral damper according to claim 5 is characterized in that: said 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 is characterized in that: said end cap internal face and piston rod mating area are provided with lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097690.8A CN102606667B (en) | 2012-04-01 | 2012-04-01 | Transverse shock absorber for locomotives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097690.8A CN102606667B (en) | 2012-04-01 | 2012-04-01 | Transverse shock absorber for locomotives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606667A true CN102606667A (en) | 2012-07-25 |
| CN102606667B CN102606667B (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210097690.8A Active CN102606667B (en) | 2012-04-01 | 2012-04-01 | Transverse shock absorber for locomotives |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106715953A (en) * | 2014-09-30 | 2017-05-24 | 日立汽车系统株式会社 | Hydraulic shock-absorbing device |
| CN106969083A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of new undercarriage buffer |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| CN108167369A (en) * | 2017-12-30 | 2018-06-15 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car oil-pressure damper pressure cylinder open-celled structure |
| CN108571554A (en) * | 2018-06-20 | 2018-09-25 | 宁波力减震器有限公司 | Electromagnetism adjustable damping oil cylinder |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482608Y (en) * | 2001-06-13 | 2002-03-20 | 乐清市正星健身器配件厂 | Hydraulic damper |
| JP2008267487A (en) * | 2007-04-19 | 2008-11-06 | Hitachi Ltd | Damping force adjustable hydraulic shock absorber |
| CN101857037A (en) * | 2009-04-10 | 2010-10-13 | 萱场工业株式会社 | Linear shock absorber for railway vehicles |
| CN202674143U (en) * | 2012-04-01 | 2013-01-16 | 常州朗锐凯迩必减振技术有限公司 | Transverse oscillating damper for locomotive vehicles |
-
2012
- 2012-04-01 CN CN201210097690.8A patent/CN102606667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482608Y (en) * | 2001-06-13 | 2002-03-20 | 乐清市正星健身器配件厂 | Hydraulic damper |
| JP2008267487A (en) * | 2007-04-19 | 2008-11-06 | Hitachi Ltd | Damping force adjustable hydraulic shock absorber |
| CN101857037A (en) * | 2009-04-10 | 2010-10-13 | 萱场工业株式会社 | Linear shock absorber for railway vehicles |
| CN202674143U (en) * | 2012-04-01 | 2013-01-16 | 常州朗锐凯迩必减振技术有限公司 | Transverse oscillating damper for locomotive vehicles |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715953A (en) * | 2014-09-30 | 2017-05-24 | 日立汽车系统株式会社 | Hydraulic shock-absorbing device |
| CN106715953B (en) * | 2014-09-30 | 2019-03-15 | 日立汽车系统株式会社 | Hydraulic bjuffer |
| CN106969083A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of new undercarriage 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 |
| CN107420474A (en) * | 2017-09-11 | 2017-12-01 | 东莞理工学院 | A kind of anti-oil-pressure damper and its Parameters design of crawling of track friendly |
| CN108167369A (en) * | 2017-12-30 | 2018-06-15 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car oil-pressure damper pressure cylinder open-celled structure |
| CN108571554A (en) * | 2018-06-20 | 2018-09-25 | 宁波力减震器有限公司 | Electromagnetism adjustable damping oil cylinder |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102606667B (en) | 2014-10-08 |
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Address after: 213125 Jiangsu province Changzhou City New District Xue Shun Road No. 19 Patentee after: CHANGZHOU KYB LEADRUN VIBRATION REDUCTION TECHNOLOGY CO.,LTD. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213125 Jiangsu province Changzhou City New District Xue Shun Road No. 19 Patentee before: CHANGZHOU KYB LEADRUN VIBRATION REDUCTION TECHNOLOGY CO.,LTD. Patentee before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
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Address after: 213125 Jiangsu province Changzhou City New District Xue Shun Road No. 19 Patentee after: CHANGZHOU KYB LEADRUN VIBRATION REDUCTION TECHNOLOGY CO.,LTD. Country or region after: China Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213125 Jiangsu province Changzhou City New District Xue Shun Road No. 19 Patentee before: CHANGZHOU KYB LEADRUN VIBRATION REDUCTION TECHNOLOGY CO.,LTD. Country or region before: China Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |