CN1309250A - Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby - Google Patents
Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby Download PDFInfo
- Publication number
- CN1309250A CN1309250A CN 00113735 CN00113735A CN1309250A CN 1309250 A CN1309250 A CN 1309250A CN 00113735 CN00113735 CN 00113735 CN 00113735 A CN00113735 A CN 00113735A CN 1309250 A CN1309250 A CN 1309250A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- cylinder barrel
- bidirectional
- groove
- 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.)
- Pending
Links
Images
Abstract
A bidirectional hydraulic buffer without elasticity and linear increasement of damping for the rolling stock of railway is disclosed. Its advantages are smaller size and lighter weight decreased by 50% or more for both, smooth reception and transfer of impact, and no rebound.
Description
This patent relates to a kind of novel buffer technology.Be to realize the technology that cushions by the hydraulic fluid change in flow.The hydraulic fluid change in flow is to regulate automatically through the variable throttling arrangement to finish; And obtain nonelastic non-linear damping increasement performance.
Nonelastic non-linear damping increasement hydraulic buffer technique has the damping increasement performance (as: rubber, sponge, metal spring etc.) of general solid buffer substance.Importantly solved connection and nonelastic widely.With above three kinds of solid buffer substances is example: damping increasement is accepted, shock absorbing also produces the general character that elastic potential energy is them therefrom.With regard to connection; Sponge is better than rubber, but seems too soft again for big momentum impact, has only the thickness of increasing just can meet the demands.Impact requirement though metal spring can satisfy big momentum, connection is with variation.The ancestor the above: the connection and the impact resistance of general solid buffer substance can not be taken into account.Take into account and be not easy to realize that implementation is poor.And some buffering occasion is the rebounding force of elasticity of demand potential energy generation not.Nonelastic non-linear damping increasement hydraulic buffer technique has solved above-mentioned contradiction, is one with connection, impact resistance, nonelastic collection, has desirable time-delay shock-absorbing capacity.Shortened cushion stroke greatly.
Nonelastic non-linear damping increasement hydraulic buffer technique is different from the fixed orifice hydraulic cushion.The characteristic of fixed orifice hydraulic cushion is: damping is with velocity variations.When being hit, produce a damping peak value earlier, damping subsequently descends with speed and reduces.The buffer deceleration stroke is strengthened, and deceleration time is very long.When condition restriction, can produce secondary pulse.And also has the connection problem for impacting first.Non-linear damping increasement hydraulic buffer technique is better than the fixed orifice hydraulic cushion on performance.
Non-linear damping increasement hydraulic fluid buffering makes impulse force be converted into less, acting duration is long, an approximate constant force.Nonelastic non-linear damping increasement hydraulic buffer technique also can implement elastic buffer.Has use value widely.The application and the principle of now showing present technique with " two-way nonelastic non-linear damping increasement hydraulic fluid buffer ".
Two-way nonelastic non-linear damping increasement hydraulic fluid buffer taken into account connection, the impact resistance of impacting, and nonelastic potential energy produces with its simple its specific structure.Because bidirectional buffering is applicable to the connection buffering between railway locomotive, the vehicle.Compare with presently used metal spring buffer; Under the same intensity cushion stroke required, volume and weight all reduced more than 50%.For impulse force to accept and transmit smoothness good, do not have significantly bump.And the rebounding force that nonelastic potential energy produces.Do not have and resemble rocking continuously that the metal spring buffer produced.Its application is for realizing the railroad train speed-raising, and improving safe operation has positive effect.
Two-way nonelastic non-linear damping increasement hydraulic fluid buffer structure: form by cylinder assembly, two-way bar bidirectional piston assembly.
Cylinder assembly: fixedly form termination (No. 2 parts) cylinder barrel termination alive (No. 3 parts) by cylinder barrel (No. 1 part) and cylinder barrel.
Cylinder barrel: inner wall of cylinder is gradually shallow to be arranged with a Zhou Youshen to the centre by two end axles, the V-type groove that length changes.Their length variation tendencies are non-linear.Extend successively from other groove of the shortest groove of port, every adjacent lengths difference does not wait.Beginning slowly then sharply extends.But it is again slick and sly increasing from slow to fast as a whole.Each bar when working, all will produce negative acceleration, i.e. a damping increasement by dark gradually shallow V-type groove.This is one of essential condition that produces connection and damping increasement buffering widely.The limit band that all width are a is left in the inner wall of cylinder center, directly clashes into for preventing and reducing metal, and the longest V-type groove must not enter a district.Inner wall of cylinder active length L equals 2 times of bidirectional piston length H and adds extreme bandwidth degree a, and a value size is decided according to liquid medium and machining accuracy.Cylinder barrel fixedly termination and the cylinder barrel termination planar central of living is provided with for piston rod and freely goes out into skidway hole, is provided with twice O type seal groove in the hole, built-in O type rubber oil sea (No. 4 parts).Cylinder barrel and cylinder barrel fixedly termination are welding, adopt scyewed joint with cylinder barrel termination alive, are used to assemble oiling and maintenance.Accompanying drawing 1: housing structure figure.Accompanying drawing 2: internal diameter of cylinder unfolded drawing.
Two-way bar bidirectional piston assembly: this assembly (No. 5 parts) is a holohedral form, is processed by a root timber material.Bidirectional piston is positioned at this assembly center portion, and its length H and inner wall of cylinder active length L relation are: L=2H+a.Bidirectional piston is two one-way cocks that operative orientation is opposite.Bidirectional piston has two outer end main piston g and two inner sub-piston k, is oil pocket M between two sub-pistons.Be provided with piston ring groove (No. 6 parts of built-in piston ring) between the adjacent major and minor piston, its width is 2 times of piston ring widths, and the degree of depth is 2 times of piston ring thickness.Main piston g external diameter periphery is axially arranged with all width and is about piston ring width, and the degree of depth is a piston ring thickness 3/5ths, alternate equal profile of tooth groove.Sub-piston k and main piston g are provided with same profile of tooth groove, but the degree of depth is 2 times of piston ring thickness.It is with one heart essential, isometrical that two-way bar is positioned at the requirement of bidirectional piston two ends, and active length equates.Its length of bidirectional piston H determines cushion stroke.Accompanying drawing 3: two-way bar bidirectional piston structural drawing
Two-way bar bidirectional piston assembly is loaded in the cylinder body, and piston ring expands outwardly is close to inboard wall of cylinder block.And can drive by bidirectional piston.
Two-way nonelastic non-linear damping increasement hydraulic fluid buffer working principle: accompanying drawing 4: assembling and fundamental diagram
When buffer bar external part pressurized impacted, bidirectional piston moved to the other end, is subjected to the pressure side piston ring to rely on main piston g, sealing main piston g profile of tooth groove.The other end piston ring relies on sub-piston k, is on state.Hydraulic oil imports from the other end cavity through inner wall of cylinder variable groove and is subjected to pressure side to form new cavity.Along with piston moves inner wall of cylinder variable groove cross section and slot number minimizing, damping increases progressively.Be subjected to the pressure side piston to tap into limit band a damping more and increase progressively sharply more, disappear when entering limit band a district rear groove, buffering is finished in the damping infinity.(this moment, bar stretched out) repeats said circumstances when the other end pressurized impacts, and just direction has been changed.
Claims (2)
1, a kind of novel buffer technology.It is characterized in that: be to realize the technology that cushions by the hydraulic fluid change in flow.The hydraulic fluid change in flow is to regulate automatically through the variable throttling arrangement to finish; And obtain nonelastic non-linear damping increasement performance.
2, two-way nonelastic non-linear damping increasement hydraulic fluid buffer.Comprise cylinder assembly, two-way bar bidirectional piston assembly.
Cylinder assembly: fixedly form termination (No. 2 parts) cylinder barrel termination alive (No. 3 parts) by cylinder barrel (No. 1 part) and cylinder barrel.
Cylinder barrel: inner wall of cylinder is gradually shallow to be arranged with a Zhou Youshen to the centre by two end axles, the V-type groove that length changes.Their length variation tendencies are non-linear.Extend successively from other groove of the shortest groove of port, every adjacent lengths difference does not wait.Beginning slowly then sharply extends.But it is again slick and sly increasing from slow to fast as a whole.The limit band that all width are a is left in the inner wall of cylinder center, and the longest V-type groove must not enter a district.Inner wall of cylinder active length L equals 2 times of bidirectional piston length H and adds extreme bandwidth degree a, and a value size is decided according to liquid medium and machining accuracy.Cylinder barrel fixedly termination and the cylinder barrel termination planar central of living is provided with for piston rod and freely goes out into skidway hole, is provided with twice O type seal groove in the hole, built-in O type rubber oil sea (No. 4 parts).Cylinder barrel and cylinder barrel fixedly termination are welding, adopt scyewed joint with cylinder barrel termination alive.
Two-way bar bidirectional piston assembly: this assembly (No. 5 parts) is a holohedral form, and bidirectional piston is positioned at this assembly center portion, and its length H and inner wall of cylinder active length L relation are: L=2H+a.Bidirectional piston is two one-way cocks that operative orientation is opposite.Bidirectional piston has two outer end main piston g and two inner sub-piston k, is oil pocket M between two sub-pistons.Be provided with piston ring groove (No. 6 parts of built-in piston ring) between the adjacent major and minor piston, its width is 2 times of piston ring widths, and the degree of depth is 2 times of piston ring thickness.Main piston g external diameter periphery is axially arranged with all width and is about piston ring width, and the degree of depth is a piston ring thickness 3/5ths, alternate equal profile of tooth groove.Sub-piston k and main piston g are provided with same profile of tooth groove, and the degree of depth is 2 times of piston ring thickness.It is with one heart essential, isometrical that two-way bar is positioned at the requirement of bidirectional piston two ends, and active length equates.
Two-way bar bidirectional piston assembly is loaded in the cylinder body, and No. 6 parts of piston ring expand outwardly is close to inboard wall of cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113735 CN1309250A (en) | 2000-02-15 | 2000-02-15 | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113735 CN1309250A (en) | 2000-02-15 | 2000-02-15 | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1309250A true CN1309250A (en) | 2001-08-22 |
Family
ID=4583495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00113735 Pending CN1309250A (en) | 2000-02-15 | 2000-02-15 | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1309250A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523045A (en) * | 2013-10-25 | 2014-01-22 | 齐齐哈尔轨道交通装备有限责任公司 | Damping type buffer of goods wagon and goods wagon |
| CN103883660A (en) * | 2014-02-25 | 2014-06-25 | 贺有云 | Double-acting buffer |
| CN104006105A (en) * | 2014-05-27 | 2014-08-27 | 梁英姬 | Bidirectional shock absorber with adjustable damping force for large cabinet and cabinet with the bidirectional shock absorber |
| CN105156575A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive double-control variable-damping magnetorheological damper |
| CN105156546A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive single-control variable-damping magnetorheological damper |
| CN107076245A (en) * | 2014-10-31 | 2017-08-18 | 日立汽车系统株式会社 | Buffer and its manufacture method |
| CN111911631A (en) * | 2020-08-10 | 2020-11-10 | 常德市联嘉机械有限公司 | Bidirectional piston sealing structure used in high-pressure environment |
-
2000
- 2000-02-15 CN CN 00113735 patent/CN1309250A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523045A (en) * | 2013-10-25 | 2014-01-22 | 齐齐哈尔轨道交通装备有限责任公司 | Damping type buffer of goods wagon and goods wagon |
| CN103883660A (en) * | 2014-02-25 | 2014-06-25 | 贺有云 | Double-acting buffer |
| CN103883660B (en) * | 2014-02-25 | 2016-08-17 | 贺有云 | Double-acting buffer |
| CN104006105A (en) * | 2014-05-27 | 2014-08-27 | 梁英姬 | Bidirectional shock absorber with adjustable damping force for large cabinet and cabinet with the bidirectional shock absorber |
| CN104006105B (en) * | 2014-05-27 | 2020-03-06 | 梁英姬 | Bidirectional shock absorber capable of adjusting damping force for large-sized cupboard and cupboard with bidirectional shock absorber |
| CN107076245A (en) * | 2014-10-31 | 2017-08-18 | 日立汽车系统株式会社 | Buffer and its manufacture method |
| CN105156575A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive double-control variable-damping magnetorheological damper |
| CN105156546A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multistage-piston passive single-control variable-damping magnetorheological damper |
| CN111911631A (en) * | 2020-08-10 | 2020-11-10 | 常德市联嘉机械有限公司 | Bidirectional piston sealing structure used in high-pressure environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208452731U (en) | A kind of rigidity and damp adjustable hydro pneumatic suspension structure | |
| CN101016926A (en) | Undercarriage bumper having inner flow regulating valve | |
| CN201236915Y (en) | Damping-adjustable rear shock-absorber for motor cycle | |
| CN104763768A (en) | Inert and damping integrated gas-filled damper | |
| CN1309250A (en) | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby | |
| CN201273355Y (en) | Self-protecting variable-damping hydraulic buffer | |
| CN200943662Y (en) | Oil and gas device for damping and preventing torsion | |
| CN2795548Y (en) | Spring clay buffer | |
| CN2835699Y (en) | Hydro-pneumatic buffer | |
| CN213039739U (en) | Three-level buffering energy absorber | |
| CN201973163U (en) | Damper with function of damping force automatic change for shock absorber | |
| CN213870882U (en) | Compression buffer structure of shock absorber | |
| CN102996696A (en) | Rear suspension oil cylinder for heavy-duty industrial mining vehicle | |
| CN110901682A (en) | Gas-liquid buffer | |
| CN213808640U (en) | Self-adaptive front shock absorber for electric tricycle | |
| CN214617635U (en) | Micro-amplitude response structure and shock absorber | |
| CN104895993B (en) | A kind of Multicarity recoil damping device | |
| CN111572587A (en) | Buffering energy-absorbing device | |
| CN102384211B (en) | Automatically damping-changing front shock absorber of motorcycle | |
| CN2217143Y (en) | Two-direction adjustable system for hanging vehicle rigid equipment-shock-proof and vibration damping device | |
| CN112392896A (en) | Integrated oil-gas suspension hydraulic cylinder device and working method thereof | |
| CN208981114U (en) | A kind of fluid viscous damper adding free inching gear | |
| CN108756007B (en) | Combined type multifunctional viscous damper | |
| CN102352908A (en) | Motorcycle automatic damping-changing front shock absorber damper | |
| CN2175322Y (en) | Shock-absorber vibration-damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |