CN104895991B - Horizontal oil-gas does not separate buffer - Google Patents
Horizontal oil-gas does not separate buffer Download PDFInfo
- Publication number
- CN104895991B CN104895991B CN201510265708.4A CN201510265708A CN104895991B CN 104895991 B CN104895991 B CN 104895991B CN 201510265708 A CN201510265708 A CN 201510265708A CN 104895991 B CN104895991 B CN 104895991B
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- Prior art keywords
- oil
- piston rod
- convex closure
- shoe cream
- cream room
- Prior art date
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- Expired - Fee Related
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000006071 cream Substances 0.000 claims abstract description 28
- 238000007667 floating Methods 0.000 claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000006424 Flood reaction Methods 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 127
- 239000000295 fuel oil Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/062—Bi-tubular units
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/063—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid comprising a hollow piston rod
-
- 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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/432—Filling or drainage arrangements, e.g. for supply of gas via piston rod sealing or guiding means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention proposes Horizontal oil-gas and does not separate buffer, eliminates sealing problem and " airtight " problem between oil gas, it is strong to adapt to environment high/low temperature ability.Technical points are：High-voltage oil cavity is formed between piston and cylinder body, convex closure is provided with piston, convex closure will be divided into two parts in hollow piston rod：The inside of convex closure is middle oil pocket, is oil storage/air cavity outside convex closure（Top is air storing cavity, and bottom is shoe cream room）；The oral area of middle oil pocket blocks provided with floating valve body, and the outside of floating valve body is circumferentially provided with multiple logical oil grooves, leads to oil after being opened so as to valve body.Throttling passage is provided between high-voltage oil cavity and middle oil pocket；Middle oil pocket is connected by the oil-through-hole below convex closure with shoe cream room；The dynamic sealing device of static seal device and low pressure oil between cylinder body extension and piston rod provided with low pressure oil；It is light viscosity oil in shoe cream room, is nitrogen in air storing cavity, the liquid level of light viscosity oil at least floods the outlet that the oil-through-hole on convex closure is located in shoe cream room in shoe cream room.
Description
Technical field
The present invention relates to a kind of oil gas bumper, especially Horizontal oil-gas not to separate buffer.
Background technology
Oil gas bumper occurs on undercarriage first, due to it excellent properties and aircraft condition of work is fitted
Should, largely with undercarriage；Authorization Notice No. is that CN204004134U patent discloses this buffer, by
In its vertical working, oil storage, air cavity, for gas upper, oily under, being not required to separation can normal work.
In order to adapt to ground need of work, Englishman develops OLEO hydro-pneumatic buffers, turns into and generally adopts both at home and abroad at present
Structure type.Because this buffer often " lies down " horizontal operation, at this moment oil gas must separate, and otherwise gas enters oil
Chamber, make buffer can not normal work.A kind of this type OLEO formula hydro-pneumatic buffers, as shown in figure 1, plunger 1 and cylinder body 2 it
Between form high-voltage oil cavity 3, plunger body is separated into low pressure oil pocket 4 and air cavity 5 provided with floating piston A again in hollow plunger 1,
Oil is full of in high-voltage oil cavity 3 and low pressure oil pocket 4, is packaged with nitrogen in air cavity 5.Domestic and international this buffer is generally using floating at present
Piston A is gentle to separate oil, almost without exception, so separates oil gas, seems correct, carefully analyze and just pinpoint the problems：It is floating
The section of piston is always smaller than the section of plunger, works together, and the stroke of floating piston, speed are always bigger than plunger, so " flies
To " get up, the condition of leakage all possesses, oil leak, mainly gas leakage just there occurs.
In order to solve leakage problem, Authorization Notice No. is that the U of CN 202228582 patent discloses a kind of piston-type hydro-pneumatic
Buffer, oil gas is separated using air bag, inflated in air bag, the outer oil storage of air bag, realize the dynamic sealing between oil gas is converted into it is quiet
Sealing, it is expected to obtain preferable effect.
The shortcomings that it is present is found in specific design：Here too high is required to the material of rubber pneumatic bag, it is desirable to oil resistant, it is resistance to
High and low temperature, there is volume as big as possible, be also adapted to the compression of big volume, it is ensured that be long-term（At least more than a year）Work
Reliability and air-tightness are too difficult；Once consideration plastics, inquire into, can not solve, particularly air-tightness with relevant person.
The content of the invention
The present invention proposes that Horizontal oil-gas does not separate buffer, eliminates sealing problem and " airtight " problem between oil gas, protects
Demonstrate,prove the normal work of buffer；Buffer adaptation environment high/low temperature ability is strong, and the reliability of buffer is high, service life length；Letter
Change structure, advantageously reduced cost, it is expected to meet the requirement of rail vehicle.
The technical scheme is that：Horizontal oil-gas does not separate buffer, including cylinder body, hollow piston rod, piston, in
The inner of empty piston rod is fixedly connected with the piston, and high-voltage oil cavity is formed between piston and cylinder body, it is characterised in that：On piston
Provided with convex closure, the inside of convex closure is middle oil pocket, and the oral area of middle oil pocket blocks provided with floating valve body, and floating valve body passes through piston
On stopping means give axial limiting, the outside of floating valve body is circumferentially provided with multiple logical oil grooves, so as to valve body open after lead to
Oil, throttling passage is provided between high-voltage oil cavity and middle oil pocket；Convex closure is extend into hollow piston rod, the convex closure wall handle of convex closure
Space within hollow piston rod is separated into oil storage/air cavity and middle oil pocket, and the outer end of oil storage/air cavity is provided with sealing device；
The top of oil storage/air cavity is air storing cavity, and bottom is shoe cream room；Oil-through-hole is provided with below convex closure, middle oil pocket passes through oil-through-hole
Connected with shoe cream room, so as to oil extraction and repairing；
Cylinder body extends to piston rod head vertically, and guide holder, extension are provided between cylinder body extension and piston rod
The sealing ring of compression is set between guide holder, forms the static seal of buffer low pressure oil；The guide holder and piston rod hollowed out it
Between be high viscosity oil pocket, fill heavy oil in high viscosity oil pocket, the seal such as heavy oil and Si Te envelopes forms buffering together
The dynamic sealing device of device low pressure oil, high viscosity oil pocket is set to be advantageous to oily dynamic sealing in oil liquid leakage passage, polyurethane is spacing
It is packaged in low pressure oil intracavitary；
Light viscosity oil is filled in high-voltage oil cavity, middle oil pocket and low pressure oil pocket, is light viscosity oil in shoe cream room, air storing cavity
In be nitrogen, the liquid level of light viscosity oil at least floods the outlet that the oil-through-hole on convex closure is located in shoe cream room, low pressure in shoe cream room
Oil pocket is only connected by piston lower portion passage with shoe cream room.
Further restriction to above-mentioned technical proposal：A kind of structure of the throttling passage is：Set at floating valve body center
There is endoporus, hollow antipriming pipe is fixed with high-voltage oil cavity, the circumferential wall of antipriming pipe is provided with multiple apertures, and antipriming pipe is with floating
Moving valve endoporus is in being slidably matched, and in a non-operative state, the head of antipriming pipe is stretched into floating valve body inner bore.
Further restriction to above-mentioned technical proposal, the structure of sealing device are：Crossed in the inwall of plug and piston rod
Place is provided with sealing ring, and sealing ring is arranged on the end face step of plug, and clamp nut is with the screw thread of its excircle and piston rod spiral shell
Line connects, and compresses sealing ring and forms static seal.
Beneficial effect：The present invention is compared with prior art（Floating piston, air bag separate the structure of oil gas）, have the advantage that
It is：Oil gas is not isolated, and eliminates sealing problem and " airtight " problem between oil gas, ensures the normal work of buffer；Oil gas is not
Isolation, eliminates exigent air bag, makes buffer adaptation environment high/low temperature ability strong, avoids the aging of rubber, extend
The service life of buffer；Simplify structure, advantageously reduce cost；Air bag is saved, avoids air bag from being squeezed for a long time, improves buffering
The reliability of device, with reference to the various seal approach taken in the past, it is expected to greatly improve the service life of buffer, meet railcar
Requirement.
Brief description of the drawings
Fig. 1 is the structure chart of existing OLEO formulas hydro-pneumatic buffer.
Fig. 2 is the structure chart that Horizontal oil-gas of the present invention does not separate buffer.
Fig. 3 is that Horizontal oil-gas of the present invention does not separate state diagram when buffer is hit.
Fig. 4 is that Horizontal oil-gas of the present invention does not separate state diagram at the end of buffer is hit.
Fig. 5 is that Horizontal oil-gas of the present invention does not separate buffer recovery process state diagram.
Fig. 6 is that Horizontal oil-gas of the present invention does not separate state diagram when buffer is tested, stores and transported indoors.
Embodiment
As shown in Fig. 2 it is as follows to further describe the present invention：Horizontal oil-gas does not separate buffer, including cylinder body 6, hollow
Piston rod 15, piston 8, the inner of hollow piston rod 15 are fixedly connected with piston 8, and hydraulic oil is formed between piston 8 and cylinder body 6
Chamber 22, convex closure 9 is provided with piston, the inside of convex closure is middle oil pocket 7, and the oral area of middle oil pocket is provided with the envelope of floating valve body 20
Stifled, floating valve body 20 passes through the jump ring 21 of the hole on piston（Or the other structures form such as nut）Axial limiting, floating valve body 20
It is cylindrical be circumferentially provided with multiple logical oil grooves, so as to valve body open after lead to oil, between high-voltage oil cavity 22 and middle oil pocket 7 be provided with section
Circulation road；Convex closure 9 is extend into hollow piston rod 15, and the convex closure wall of convex closure is separated into the space in hollow piston rod 15
Middle oil pocket and oil storage/air cavity（Upper end is air storing cavity 14, and lower end is shoe cream room 19）, oil-through-hole is provided with below convex closure, leads to oil
Oil pipe 24 is installed, middle oil pocket 7 is connected by oil pipe 24 with shoe cream room 19, so as to oil extraction and repairing on hole；Store up oil/gas
The outer end of chamber is provided with sealing device.
Cylinder body 6 extends to piston rod head vertically, and guide holder 13 is provided between cylinder body extension and piston rod 15, is led
It is high between the guide holder 13 and piston rod that hollow out to the static seal device that low pressure oil is provided between seat 13 and cylinder body extension
Viscosity oil pocket 12, high viscosity oil pocket 12 fill heavy oil, and heavy oil and seal form the dynamic of buffer low pressure oil together
Sealing device, high viscosity oil pocket is set to be advantageous to oily dynamic sealing in oil liquid leakage passage., polyurethane limited block 11 is mounted in low pressure
In oil pocket；
Light viscosity oil is filled in high-voltage oil cavity 22, middle oil pocket 7 and low pressure oil pocket 10, is low viscosity in shoe cream room 19
Oil, is nitrogen in air storing cavity 14, and the oil-through-hole that the liquid level of light viscosity oil is at least flooded on convex closure in shoe cream room 19 is located at shoe cream room
In outlet, low pressure oil pocket 10 only connected by the passage outputed in lower piston with shoe cream room 19.
As shown in Fig. 2 a kind of structure of the throttling passage is：Endoporus 25 is provided with floating valve body 20, in hydraulic oil
Hollow antipriming pipe 23 is fixed with chamber 22, the circumferential wall of antipriming pipe 23 is provided with multiple apertures, and antipriming pipe 23 is cylindrical with floating
Valve body inner bore 25 is in being slidably matched, and in a non-operative state, the head of antipriming pipe 23 enters in floating valve body inner bore 25.
As shown in Fig. 2 the structure of sealing device is：Sealing ring is provided with the inwall intersection of plug 16 and piston rod 15,
Sealing ring is arranged on the end face step of plug, and clamp nut 17 is threadedly coupled with the screw thread of its excircle with piston rod 15, pressure
Tightening seal circle forms static seal.
Be connected as shown in Fig. 2 being additionally provided with an outer end cap 18 outside clamp nut 17 with clamp nut 17, it is main rise by
Power, protective effect.
As shown in Fig. 2 in order to avoid during working cylinder repairing nitrogen be mixed into, on the oil-through-hole of convex closure fill oil guide pipe 24, arrive
The bottom oil-feed of shoe cream room 19.
With reference to shown in Fig. 3, Fig. 4, Fig. 5, the buffer course of work as the description present invention：When buffer is hit, see
Fig. 3, power P through the right lateral of piston rod push piston 8, in high-voltage oil cavity 22 " crowded " oil through the aperture of antipriming pipe 23 enter among oil pocket 7, then
Enter shoe cream room 19 through oil guide pipe 24, compress the gas in air storing cavity 14（Nitrogen）, and the passage outputed by the bottom of piston 8,
The space repairing increased newly for low pressure oil pocket 10；Buffer after the completion of impact is shown in Fig. 4, it is noted that after impact, in oil storage/air cavity
Pasta improves, gas（Nitrogen）Compressed, air pressure improves；After impact terminates, see that Fig. 5, external force P are removed, the height in air storing cavity 14
For 19 oil through oil guide pipe 24-middle oil pocket 7, the floating valve body 20 pushed open on piston enters high pressure in pressure gas push shoe cream room
The oil of oil pocket 22-promotion piston 8,15 left lateral of piston rod-extruding low pressure oil pocket 10 returns to shoe cream room 19 through passage.
The structure that the present invention and floating piston, air bag separate oil gas compares, and advantage is：
（1）Oil gas is not isolated, and eliminates sealing problem and " airtight " problem between oil gas, ensures the normal work of buffer
Make；
（2）Oil gas is not isolated, and eliminates exigent air bag, is made buffer adaptation environment high/low temperature ability strong, is kept away
Exempt from the aging of rubber, extend the service life of buffer；Simplify structure, advantageously reduce cost；
（3）Air bag is saved, avoids air bag from being squeezed for a long time, improves the reliability of buffer, it is various with reference to what is taken in the past
Seal approach, it is expected to greatly improve the service life of buffer, meet the requirement of rail vehicle.
In addition to the embodiments described above, all technical schemes formed using equivalent substitution or equivalent transformation, all should fall in this hair
In the protection domain of bright requirement.
Deficiency is existing for the present invention：
（1）Entrucking has particular/special requirement：Ensure the oil guide pipe on piston（Oil guiding hole）Down, assembling increase work is given for this
Amount, also brings inconvenience for entrucking；
（2）Assembling, most laboratory tests, storage, transport " head-up " upright can be carried out, as shown in fig. 6, piston rod
Above, piston 8 is below, but does not allow buffer " lying on one's side " on 15 head（Buffer " is lied down, oil guide pipe is in level）, such as
So, nitrogen can enter oil cylinder, and buffer meeting can not normal work.At this moment need upright stand to be vented, could recover normal.
Claims (5)
1. Horizontal oil-gas does not separate buffer, including cylinder body, hollow piston rod, piston, the inner of hollow piston rod is with living
Plug is fixedly connected, and high-voltage oil cavity is formed between piston and cylinder body, it is characterised in that：Convex closure is provided with piston, convex closure is extend into
In hollow piston rod, space in hollow piston rod is separated into middle oil pocket and oil storage/air cavity by the convex closure wall of convex closure, storage
Oil/gas intracavitary top is air storing cavity, and bottom is shoe cream room；The oral area of middle oil pocket blocks provided with floating valve body, and floating valve body leads to
The stopping means made a living beyond the Great Wall gives axial limiting, and the outside of floating valve body is circumferentially provided with multiple logical oil grooves, so that valve body is opened
Lead to oil after opening, throttling passage is provided between high-voltage oil cavity and middle oil pocket；The outer end of oil storage/air cavity is provided with sealing device；Piston
Oil-through-hole is provided with below convex closure, middle oil pocket is connected by oil-through-hole with shoe cream room, so as to oil extraction and repairing；
Cylinder body extends to piston rod head vertically, and guide holder is provided between cylinder body extension and piston rod, in guide holder and
The sealing ring of compression is provided between cylinder body extension, forms the static seal device of low pressure oil, the guide holder and piston rod hollowed out
Between be high viscosity oil pocket, heavy oil is filled in high viscosity oil pocket, heavy oil and seal form buffer low pressure together
The dynamic sealing device of oil, high viscosity oil pocket is set to be advantageous to oily dynamic sealing in oil liquid leakage passage, polyurethane limited block is mounted in
Low pressure oil intracavitary；
Light viscosity oil is filled in high-voltage oil cavity, middle oil pocket and low pressure oil pocket, is light viscosity oil in shoe cream room, is in air storing cavity
Nitrogen, the liquid level of light viscosity oil at least floods the outlet that the oil-through-hole on convex closure is located in shoe cream room, low pressure oil pocket in shoe cream room
Only connected by lower passage with shoe cream room.
2. Horizontal oil-gas does not separate buffer according to claim 1, it is characterised in that a kind of structure of the throttling passage
For：Endoporus is provided with floating valve body center, hollow antipriming pipe is fixed with high-voltage oil cavity, the circumferential wall of antipriming pipe is provided with
Multiple apertures, antipriming pipe is with floating valve body inner bore in being slidably matched, and in a non-operative state, float trap is stretched on the head of antipriming pipe
In internal hole.
3. Horizontal oil-gas according to claim 1 or claim 2 does not separate buffer, it is characterised in that：Filled on the oil-through-hole of convex closure
Oil guide pipe（24）, to shoe cream room（19）Bottom oil-feed.
4. Horizontal oil-gas according to claim 1 or claim 2 does not separate buffer, it is characterised in that the structure of sealing device is：
The inwall intersection of plug and piston rod is provided with sealing ring, and sealing ring is arranged on the end face step of plug, and clamp nut is with it
The screw thread of excircle is connected with piston rod thread, is compressed sealing ring and is formed static seal.
5. Horizontal oil-gas does not separate buffer according to claim 3, it is characterised in that the structure of sealing device is：In plug
Sealing ring is provided with the inwall intersection of piston rod, sealing ring is arranged on the end face step of plug, and clamp nut is cylindrical with its
The screw thread in week is connected with piston rod thread, is compressed sealing ring and is formed static seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265708.4A CN104895991B (en) | 2015-05-24 | 2015-05-24 | Horizontal oil-gas does not separate buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265708.4A CN104895991B (en) | 2015-05-24 | 2015-05-24 | Horizontal oil-gas does not separate buffer |
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| Publication Number | Publication Date |
|---|---|
| CN104895991A CN104895991A (en) | 2015-09-09 |
| CN104895991B true CN104895991B (en) | 2017-12-29 |
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| CN201510265708.4A Expired - Fee Related CN104895991B (en) | 2015-05-24 | 2015-05-24 | Horizontal oil-gas does not separate buffer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013620B (en) * | 2017-05-03 | 2018-10-23 | 武汉理工大学 | A kind of active ship hydraulic station dynamic vibration absorber |
| CN107366707B (en) * | 2017-08-23 | 2020-02-14 | 中铁二院工程集团有限责任公司 | Low-viscosity silicone oil type speed locker for bridges in severe cold areas |
| 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 |
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| CN200943662Y (en) * | 2006-08-21 | 2007-09-05 | 内蒙古北方重型汽车股份有限公司 | Oil and gas device for damping and preventing torsion |
| CN200957821Y (en) * | 2006-10-26 | 2007-10-10 | 中国南车集团北京二七车辆厂 | Liquid-vapor buffer |
| CN101639106A (en) * | 2009-08-25 | 2010-02-03 | 深圳市中车业成实业有限公司 | Piston-type hydro-pneumatic buffer |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
| CN104364552A (en) * | 2012-05-30 | 2015-02-18 | 北京京西重工有限公司 | A suspension damper assembly |
| CN204664266U (en) * | 2015-05-24 | 2015-09-23 | 珠海市业成轨道交通设备科技有限公司 | Horizontal oil-gas does not separate buffer |
-
2015
- 2015-05-24 CN CN201510265708.4A patent/CN104895991B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0705193B1 (en) * | 1993-06-22 | 1997-09-17 | Oleo International Holdings Limited | Energy absorbers |
| CN200943662Y (en) * | 2006-08-21 | 2007-09-05 | 内蒙古北方重型汽车股份有限公司 | Oil and gas device for damping and preventing torsion |
| CN200957821Y (en) * | 2006-10-26 | 2007-10-10 | 中国南车集团北京二七车辆厂 | Liquid-vapor buffer |
| CN101639106A (en) * | 2009-08-25 | 2010-02-03 | 深圳市中车业成实业有限公司 | Piston-type hydro-pneumatic buffer |
| CN202228582U (en) * | 2011-09-12 | 2012-05-23 | 吕再昌 | Piston type liquid and gas buffer |
| CN104364552A (en) * | 2012-05-30 | 2015-02-18 | 北京京西重工有限公司 | A suspension damper assembly |
| CN204664266U (en) * | 2015-05-24 | 2015-09-23 | 珠海市业成轨道交通设备科技有限公司 | Horizontal oil-gas does not separate buffer |
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| CN104895991A (en) | 2015-09-09 |
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