CN108150582B - Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train - Google Patents
Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train Download PDFInfo
- Publication number
- CN108150582B CN108150582B CN201711491261.8A CN201711491261A CN108150582B CN 108150582 B CN108150582 B CN 108150582B CN 201711491261 A CN201711491261 A CN 201711491261A CN 108150582 B CN108150582 B CN 108150582B
- Authority
- CN
- China
- Prior art keywords
- guide
- oil
- valve
- guide cover
- shock absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 32
- 230000035939 shock Effects 0.000 title claims abstract description 31
- 239000003921 oil Substances 0.000 claims abstract description 49
- 238000010992 reflux Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 238000004146 energy storage Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
Abstract
An anti-meandering oil pressure shock absorber guide cover return valve system for a high-speed motor train is provided, wherein a guide cover return valve system is arranged on a guide unit; the guide cover reflux valve system comprises a guide cover, a reflux valve seat, a one-way reflux valve and an oil guide pipe; the backflow valve seat is arranged on the guide seat of the guide unit through threads; the one-way return valve is arranged on a valve seat of the return valve; the guide cover is arranged on the valve seat of the reflux valve and is communicated with the reflux valve, and the oil guide pipe is in small clearance fit with the guide cover and is connected in a rivet punching mode; the back flow valve seat is provided with a sealing groove, and an O-shaped rubber static seal is arranged in the sealing groove. The beneficial effects are that: through set up direction lid backward flow valve system on the direction unit for hydraulic oil in the accumulator can directly get into the pressure cylinder upper chamber of anti-hunting oil pressure shock absorber under the effect of pressure, thereby avoid anti-hunting oil pressure shock absorber's pressure cylinder upper chamber to appear the cavity and lead to shock absorber performance characteristic curve to appear the deformity problem.
Description
Technical Field
The invention belongs to the technical field of hydraulic elements, and particularly relates to an oil return valve system of a guide cover of an anti-meandering oil pressure shock absorber for a high-speed motor train.
Background
The anti-hunting oil pressure shock absorber for the speed train with the speed of 250 km marked by the Fuxing number is a key component of the running safety of the train and is mainly used for inhibiting the hunting movement of a bogie and a train body in the running process of the train. While anti-hunting dampers are designed to produce very high damping forces at very low speeds to dampen high and low frequency vibrations. Meanwhile, the anti-snake vibration absorber provides a dynamic stiffness requirement under low amplitude and high frequency, the low frequency dynamic stiffness requirement is small, and the high frequency dynamic stiffness requirement is large. Aiming at the special technical requirements of the anti-hunting shock absorber, the external adjustable oil pressure shock absorber with double circulation is designed. The existing double-circulation externally-arranged adjustable oil pressure shock absorber has certain technical defects, and is mainly characterized in that: during the downward movement of the piston, hydraulic oil flows into the oil storage cylinder through the bottom valve unit, and during the upward movement of the piston, hydraulic oil flows into the pressure cylinder through the bottom valve unit. During operation of the piston, the upper chamber of the pressure cylinder may be empty, which may lead to a deformation of the performance characteristic of the shock absorber.
Disclosure of Invention
The invention provides an oil return valve system of an anti-hunting oil pressure shock absorber guide cover for a high-speed motor train, which aims at the defects of the prior art, and the application of the system can enable three parts of hydraulic oil to circularly flow, namely an upper cavity of a pressure cylinder of the anti-hunting oil pressure shock absorber, a lower cavity of the pressure cylinder of the anti-hunting oil pressure shock absorber and an oil storage cylinder, so that the problem that the performance characteristic curve of the shock absorber is deformed due to the occurrence of a cavity in the upper cavity of the pressure cylinder of the anti-hunting oil pressure shock absorber is avoided.
The anti-hunting oil pressure shock absorber comprises a protection cover, a piston rod, a guide unit, a pressure cylinder, a piston unit and a bottom valve unit, wherein the protection cover, the piston rod, the guide unit, the energy storage cylinder, the pressure cylinder, the piston unit and the bottom valve unit are assembled in a conventional mode;
the guide unit is provided with a guide cover reflux valve system;
the guide cover reflux valve system comprises a guide cover, a reflux valve seat, a one-way reflux valve and an oil guide pipe;
the backflow valve seat is arranged on the guide seat of the guide unit through threads; the one-way return valve is arranged on a valve seat of the return valve;
the guide cover is arranged on the valve seat of the return valve and is communicated with the return valve, so that hydraulic oil flows through the oil guide pipe, the guide cover and the return valve from the energy storage cylinder under the pressure action and then enters the upper cavity of the pressure cylinder of the snake-like oil pressure shock absorber;
the oil guide pipe is in small clearance fit with the guide cover and is connected in a rivet punching mode;
the back flow valve seat is provided with a sealing groove, and an O-shaped rubber static seal is arranged in the sealing groove.
The beneficial effects are that: through set up direction lid backward flow valve system on the direction unit for hydraulic oil in the accumulator can directly get into the pressure cylinder upper chamber of anti-hunting oil pressure shock absorber under the effect of pressure, thereby avoid anti-hunting oil pressure shock absorber's pressure cylinder upper chamber to appear the cavity and lead to shock absorber performance characteristic curve to appear the deformity problem.
Drawings
FIG. 1 is a schematic diagram of a structure of an anti-hunting hydraulic damper for a high-speed rail vehicle according to the present invention;
FIG. 2 is a schematic diagram of a system of an oil return valve system of a guide cover of an anti-hunting oil pressure damper for a high-speed motor train;
in the figure: 1. the device comprises a protective cover, a 2 piston rod, a 3 guide unit, a 4 piston unit, a 5 pressure cylinder, a 6 bottom valve unit, a 7 oil guide pipe, an 8 backflow valve seat, a 9 one-way backflow valve, a 10 guide seat of the guide unit, an 11 energy storage cylinder, a 12 guide cover and a 13 sealing groove.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present invention, the present invention will be further described in detail with reference to specific embodiments.
As shown in fig. 1 and 2, an oil return valve system of a guide cover of an anti-hunting oil pressure shock absorber for a high-speed motor train comprises a protection cover 1, a piston rod 2, a guide unit 3, an energy storage cylinder 11, a pressure cylinder 5, a piston unit 4 and a bottom valve unit 6, wherein the protection cover 1, the piston rod 2, the guide unit 3, the energy storage cylinder 11, the pressure cylinder 5, the piston unit 4 and the bottom valve unit 6 are assembled in a conventional manner;
the guide unit 3 is provided with a guide cover reflux valve system;
the guide cover reflux valve system comprises a guide cover 12, a reflux valve seat 8, a reflux valve 9 and an oil guide pipe 7;
the return valve seat 8 is arranged on a guide seat 10 of the guide unit through threads; the return valve 9 is arranged on the return valve seat 8;
the guide cover 12 is arranged on the return valve seat 8 and is communicated with the return valve 9, so that hydraulic oil flows through the oil guide pipe 7, the guide cover 12 and the return valve 9 from the energy storage cylinder 11 under the pressure action and then enters the pressure cylinder upper cavity of the snake-like oil pressure shock absorber;
the oil guide pipe 7 is in small clearance fit with the guide cover 12 and is connected in a rivet punching mode;
the backflow valve seat 8 is provided with a sealing groove 13, and an O-shaped rubber static seal is arranged in the sealing groove 13.
The technical scheme of the invention relates to a set of guide cover oil return valve unit designed for realizing the characteristic function of a dual-circulation external adjustable anti-hunting oil pressure shock absorber, which is used for supplementing annular oil flow of a piston rod and a pressure cylinder in the compression process of the anti-hunting oil pressure shock absorber, so that the consistency of oil in the working process of the anti-hunting oil pressure shock absorber is ensured, and the problem that a performance characteristic curve of the shock absorber is deformed due to the fact that a cavity does not appear.
The invention provides a guide cover oil return valve system of an anti-snake oil pressure shock absorber for a high-speed motor train, which is described in detail above, wherein the principle and the implementation mode of the application are described by using the embodiments, and the description of the embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (1)
1. The oil return valve system of the guide cover of the anti-hunting oil pressure shock absorber for the high-speed motor train comprises a protective cover, a piston rod, a guide unit, an energy storage cylinder, a pressure cylinder, a piston unit and a bottom valve unit, wherein the protective cover, the piston rod, the guide unit, the energy storage cylinder, the pressure cylinder, the piston unit and the bottom valve unit are assembled in a conventional mode;
the guide unit is provided with a guide cover reflux valve system;
the guide cover reflux valve system comprises a guide cover, a reflux valve seat, a one-way reflux valve and an oil guide pipe;
the backflow valve seat is arranged on the guide seat of the guide unit through threads; the one-way return valve is arranged on a valve seat of the return valve;
the guide cover is arranged on the valve seat of the return valve and is communicated with the return valve, so that hydraulic oil flows through the oil guide pipe, the guide cover and the return valve from the energy storage cylinder under the pressure action and then enters the upper cavity of the pressure cylinder of the snake-like oil pressure shock absorber;
the oil guide pipe is in small clearance fit with the guide cover and is connected in a rivet punching mode;
the back flow valve seat is provided with a sealing groove, and an O-shaped rubber static seal is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491261.8A CN108150582B (en) | 2017-12-30 | 2017-12-30 | Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491261.8A CN108150582B (en) | 2017-12-30 | 2017-12-30 | Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150582A CN108150582A (en) | 2018-06-12 |
| CN108150582B true CN108150582B (en) | 2024-03-29 |
Family
ID=62460290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711491261.8A Active CN108150582B (en) | 2017-12-30 | 2017-12-30 | Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150582B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143893A1 (en) * | 2020-01-17 | 2021-07-22 | 常州中车柴油机零部件有限公司 | Hydraulic shock absorber and railway vehicle |
| CN111536188A (en) * | 2020-04-30 | 2020-08-14 | 珠海市业成轨道交通设备科技有限公司 | Single-cycle structure oil pressure damper guide cover assembly for world leading high-speed motor train unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202926944U (en) * | 2012-11-20 | 2013-05-08 | 株洲联诚集团减振器有限责任公司 | Oil damper for railroad rolling stock |
| CN103851121A (en) * | 2012-12-07 | 2014-06-11 | 常州朗锐凯迩必减振技术有限公司 | Snaking prevention shock absorber |
| CN204327843U (en) * | 2014-12-12 | 2015-05-13 | 浙江永贵电器股份有限公司 | A kind of valve architecture of locomotive vehicle oil hydraulic damper |
| EP2977640A2 (en) * | 2014-07-25 | 2016-01-27 | Volkswagen Aktiengesellschaft | Vibration absorber |
| WO2017012112A1 (en) * | 2015-07-23 | 2017-01-26 | 童欣 | Oil damper for train |
| 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 |
| CN207864515U (en) * | 2017-12-30 | 2018-09-14 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car anti-snake oil-pressure damper guide cover oil return valve system system |
-
2017
- 2017-12-30 CN CN201711491261.8A patent/CN108150582B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202926944U (en) * | 2012-11-20 | 2013-05-08 | 株洲联诚集团减振器有限责任公司 | Oil damper for railroad rolling stock |
| CN103851121A (en) * | 2012-12-07 | 2014-06-11 | 常州朗锐凯迩必减振技术有限公司 | Snaking prevention shock absorber |
| EP2977640A2 (en) * | 2014-07-25 | 2016-01-27 | Volkswagen Aktiengesellschaft | Vibration absorber |
| CN204327843U (en) * | 2014-12-12 | 2015-05-13 | 浙江永贵电器股份有限公司 | A kind of valve architecture of locomotive vehicle oil hydraulic damper |
| WO2017012112A1 (en) * | 2015-07-23 | 2017-01-26 | 童欣 | Oil damper for train |
| 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 |
| CN207864515U (en) * | 2017-12-30 | 2018-09-14 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car anti-snake oil-pressure damper guide cover oil return valve system system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108150582A (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104373497A (en) | Parallel-connection liquid-electricity feed suspension system | |
| CN108150582B (en) | Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train | |
| CN104088952A (en) | Rear shock absorber with air bag | |
| CN107642575B (en) | Automobile double-cylinder type shock absorber | |
| CN204403250U (en) | A kind of sensing frequency conversion vibration damper | |
| CN206085764U (en) | Cast and forge lathe with shock -absorbing function | |
| CN102777531B (en) | Pressure-stabilizing variable frequency damper | |
| CN204703784U (en) | A kind of down-hole string is with brill shock absorber | |
| CN202926945U (en) | Exhaust device in pressure cylinder of snake-shaped oil pressure-preventive damper | |
| CN204041830U (en) | Vibration damper, vehicle suspension and vehicle | |
| CN104500636A (en) | Sensing variable-frequency vibration absorber | |
| CN101749354B (en) | Automobile generating shock absorber | |
| CN202194988U (en) | Leak-proof shock absorber | |
| CN201818701U (en) | Oil seal device provided with guider for shock absorber | |
| CN201763878U (en) | Single-barrel shock absorber | |
| CN207864515U (en) | A kind of high speed motor car anti-snake oil-pressure damper guide cover oil return valve system system | |
| CN204267590U (en) | Damping device, suspension system and automobile | |
| CN206092780U (en) | Shock absorber hydraulic cushion system - structure | |
| CN209800603U (en) | Piston assembly for dual-cycle anti-snaking oil pressure shock absorber of high-speed motor car | |
| CN106812860A (en) | A kind of combined type damper | |
| CN206175556U (en) | Mechanical engineering equips and uses damping device | |
| CN202955168U (en) | Shock absorber | |
| CN208364659U (en) | A kind of high speed motor car anti-snake oil-pressure damper piston valve system system | |
| CN202048131U (en) | Rebuilt valve of shock absorber | |
| CN205226207U (en) | Hydraulic cushion system - bumper shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |