CN110219925A - A kind of high-speed rail contact line damper - Google Patents
A kind of high-speed rail contact line damper Download PDFInfo
- Publication number
- CN110219925A CN110219925A CN201910588297.0A CN201910588297A CN110219925A CN 110219925 A CN110219925 A CN 110219925A CN 201910588297 A CN201910588297 A CN 201910588297A CN 110219925 A CN110219925 A CN 110219925A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder barrel
- contact line
- piston rod
- periphery
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/234—Arrangements for supporting or suspending trolley wires, e.g. from buildings incorporating yielding means or damping means
-
- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- 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
- F16F9/3214—Constructional features of pistons
-
- 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
- F16F9/3228—Constructional features of connections between pistons and piston rods
-
- 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
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
-
- 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
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
-
- 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
- F16F9/362—Combination of sealing and guide arrangements for piston rods
-
- 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
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
-
- 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
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0208—Alloys
-
- 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
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0241—Fibre-reinforced plastics [FRP]
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/02—Surface features, e.g. notches or protuberances
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of high-speed rail contact line dampers, including right end (1), cylinder barrel (2), piston rod (3), piston (4), intermediate end (5), left end (6), a kind of high-speed rail contact line damper that the application proposes, it can greatly reduce and reduce the vibration of contact line, on the one hand improve contact line and pantograph lead between contact reliability, power down accident occurs when preventing high-speed rail from running, on the other hand, the service life of contact line and pantograph conductive slider is also improved, guarantees the reliable power supply of high-speed rail.For the present invention by the moulding process of the structure design and piston rod and piston of innovation, so that a kind of high-speed rail contact line shock absorber structure is simple, reliable performance is easy for installation, greatly reduces the production cost of contact line damper, is with a wide range of applications.
Description
Technical field
The present invention relates to a kind of hydraulic damper, and in particular to arrives a kind of high-speed rail contact line damper, belongs to electrically and machine
Electro-technical field.
Background technique
With the fast development of China's high-speed rail, to high-speed rail reliability of operation, higher requirements are also raised, it is known that
High-speed rail receives the electric power of power grid, driving high-speed rail operation by contact line and pantograph.Contact line has certain in actual installation
Sag, high-speed rail run when, pantograph can to contact line formation lift, cause pantograph two sides contact line generate vibration, this
On the one hand kind vibration can reduce the reliability contacted between contact line and pantograph, increase the risk of high-speed rail power down, on the other hand,
This vibration can also reduce the service life of contact line and pantograph conductive slider.
Summary of the invention
In order to overcome above-mentioned deficiency, the present invention provides a kind of high-speed rail contact line dampers.
Technical scheme is as follows:
A kind of high-speed rail contact line damper, including right end, cylinder barrel, piston rod, piston, intermediate end, left end；
The middle part of the piston rod has the serrate grooves of mutual dislocation down through punch forming, and right end is threaded, and uses
In the connection with external structure；
The piston has the position of serrate grooves by injection molding in the middle part of piston rod, and the material of piston is enhancing nylon
Piston, the top of piston form axially through damping slot, the piston and piston rod are shaped to the one being reliably connected；
It is provided with sealing element in the intermediate end periphery and inner hole, intermediate end is fit into the specific bit in the middle part of cylinder barrel
It sets, by withholding the outer wall of cylinder barrel, inner wall of cylinder part inlay enters in the seal channel of intermediate end periphery, cylinder barrel and centre
It is formed and is reliably connected between end, meanwhile, reliable sealing is formed between inner wall of cylinder and intermediate end periphery；
The piston rod is inserted into cylinder barrel from right to left together together with piston, is formed and is slidably matched between piston and inner wall of cylinder,
The left part of piston rod runs through the inner hole of intermediate end, and reliable sealing is formed between the left part of piston rod and the inner hole of intermediate end；
Sealing element and dust guard are provided in the inner hole of the right end, the periphery of right end is provided with sealing element, the right end
Headgear is mounted in the right part of piston rod, and is inserted into the right end of cylinder barrel, and being formed between the right part of piston rod and the inner hole of right end can
By sealing and dust-proof, the reliable sealing of formation between the periphery of right end and the right end inner hole of cylinder barrel, by withholding the outer wall of cylinder barrel,
Inner wall of cylinder is embedded into the seal channel of right end periphery, is formed and is reliably connected between cylinder barrel and right end；
The first working chamber A, the right side of the piston and right end are formed between the left side of the piston and the right side of intermediate end
Left side between formed in the second working chamber B, the first working chamber A and the second working chamber B and be filled with working fluid；
The left part of the left end is connection plunger, and the periphery of right part offers groove, a left side for the right part insertion cylinder barrel of left end
It holds in inner hole, by withholding the outer wall of cylinder barrel, inner wall of cylinder part inlay enters in the groove of left end periphery, cylinder barrel and left end
It is formed and is reliably connected between head；
Piston rod left part accommodating chamber C is formed between the right side of the left end and the left side of intermediate end.
The damping slot on the top of above-mentioned piston can be shaped to axially through periphery spiral damping slot replace.
The material of above-mentioned intermediate end and right end is copper or enhancing nylon.
Beneficial effects of the present invention are as follows:
A kind of high-speed rail contact line damper that the application proposes, can greatly reduce and reduce the vibration of contact line, on the one hand mention
High contact line and pantograph lead between contact reliability, power down accident occurs when preventing high-speed rail from running and on the other hand also mentions
The high service life of contact line and pantograph conductive slider, guarantees the reliable power supply of high-speed rail.
Serrate grooves on piston rod of the invention so that injection molding piston in conjunction with piston rod it is more firm.
The present invention is designed by the structure of innovation and the moulding process of piston rod and piston, so that production technology is simpler
It is single, it is suitble to produce in enormous quantities.
A kind of high-speed rail contact line shock absorber structure of the invention is simple, and reliable performance is easy for installation, greatly reduces contact
The production cost of line damper, is with a wide range of applications.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
As shown in Figure 1, a kind of high-speed rail contact line damper, including right end 1, cylinder barrel 2, piston rod 3, piston 4, intermediate ends
First 5, left end 6；
The middle part of the piston rod 3 has the serrate grooves 3-1 of mutual dislocation down through punch forming, and right end is machined with spiral shell
Line, for the connection with external structure；
The piston 4 has the position of serrate grooves 3-1 at the middle part of piston rod 3 by injection molding, and the material of piston 4 is to increase
Strong nylon piston, the top of piston 4 form axially through damping slot 4-1, the piston 4 and piston rod 3 are shaped to reliably
The one of connection；
Sealing element is provided in 5 periphery of intermediate end and inner hole, intermediate end 5 is fit into the specified of 2 middle part of cylinder barrel
Position, by withholding the outer wall of cylinder barrel 2,2 inner wall section of cylinder barrel is embedded into the seal channel of intermediate 5 periphery of end, cylinder barrel 2
It is formed and is reliably connected between intermediate end 5, meanwhile, 2 inner wall of cylinder barrel and intermediate end form reliable sealing between 5 periphery；
The piston rod 3 is inserted into cylinder barrel 2 from right to left together together with piston 4, and sliding is formed between 2 inner wall of piston 4 and cylinder barrel
Cooperation, the left part of piston rod 3 run through the inner hole of intermediate end 5, are formed between the left part of piston rod 3 and the inner hole of intermediate end 5
Reliable sealing；
Sealing element and dust guard are provided in the inner hole of the right end 1, the periphery of right end 1 is provided with sealing element, the right side
End 1 is sleeved on the right part of piston rod 3, and is inserted into the right end of cylinder barrel 2, between the right part of piston rod 3 and the inner hole of right end 1
Form reliable sealing and dust-proof, the reliable sealing of formation between the periphery of right end 1 and the right end inner hole of cylinder barrel 2, by withholding cylinder
The outer wall of cylinder 2,2 inner wall of cylinder barrel are embedded into the seal channel of 1 periphery of right end, are formed between cylinder barrel 2 and right end 1 reliable
Connection；
The first working chamber A, the right side of the piston 4 and right end are formed between the left side of the piston 4 and the right side of intermediate end 5
It is formed between first 1 left side in the second working chamber B, the first working chamber A and the second working chamber B and is filled with working fluid；
The left part of the left end 6 is connection plunger, and the periphery of right part offers groove, the right part insertion cylinder barrel 2 of left end 6
In the inner hole of left end, by withholding the outer wall of cylinder barrel 2,2 inner wall section of cylinder barrel is embedded into the groove of 6 periphery of left end, cylinder barrel 2
It is formed and is reliably connected between left end 6；
Piston rod left part accommodating chamber C is formed between the right side of the left end 6 and the left side of intermediate end 5.
The damping slot 4-1 on the top of above-mentioned piston 4 can be shaped to axially through periphery spiral damping slot replace.
The material of above-mentioned intermediate end 5 and right end 1 is copper or enhancing nylon.
The course of work: a kind of left end 6 of high-speed rail contact line damper is fixedly mounted in tensioning clue, piston rod 3
Right end is connected in contact line by external structure.When high-speed rail operation, pantograph slides in contact line, forms contact line
Vertical tremor.When contact line moves upwards, piston rod 3 and piston 4 is driven to move downward relative to left end 6 and cylinder barrel 2,
Working fluid in first working chamber A is squeezed to be flowed in the second working chamber B by damping slot 4-1, and working fluid is flowing
During, damping is formed, is acted on piston 4, and is reacted in contact line by piston rod 3, contact is reduced and reduce
The vibration of line improves the service life of contact line and pantograph conductive slider, meanwhile, it also improves contact line and pantograph is led
Contact reliability between electric sliding block guarantees the reliable power supply of high-speed rail.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (3)
1. a kind of high-speed rail contact line damper, it is characterised in that: including right end (1), cylinder barrel (2), piston rod (3), piston
(4), intermediate end (5), left end (6)；
The middle part of the piston rod (3) has the serrate grooves (3-1) of mutual dislocation down through punch forming, and right end is machined with
Screw thread, for the connection with external structure；
The piston (4) has the position of serrate grooves (3-1) by injection molding in the middle part of piston rod (3), piston (4)
Material is enhancing nylon piston, the top of piston (4) form axially through damping slot (4-1), the piston (4) and piston
Bar (3) is shaped to the one being reliably connected；
Sealing element is provided in intermediate end (5) periphery and inner hole, intermediate end (5) is fit into the middle part of cylinder barrel (2)
Designated position, by withholding the outer wall of cylinder barrel (2), cylinder barrel (2) inner wall section is embedded into the sealing of intermediate end (5) periphery
In part slot, is formed and be reliably connected between cylinder barrel (2) and intermediate end (5), meanwhile, cylinder barrel (2) inner wall and intermediate end (5) periphery
Between form reliable sealing；
The piston rod (3) together in piston (4) together insertion cylinder barrel (2) from right to left, piston (4) and cylinder barrel (2) inner wall it
Between formed and be slidably matched, the left part of piston rod (3) runs through the inner hole of intermediate end (5), the left part of piston rod (3) and intermediate end
(5) reliable sealing is formed between inner hole；
Sealing element and dust guard are provided in the inner hole of the right end (1), the periphery of right end (1) is provided with sealing element, institute
It states right end (1) and is sleeved on the right part of piston rod (3), and be inserted into the right end of cylinder barrel (2), the right part and right end of piston rod (3)
Reliable sealing and dust-proof is formed between the inner hole of head (1), is formed between the periphery of right end (1) and the right end inner hole of cylinder barrel (2)
Reliable sealing, by withholding the outer wall of cylinder barrel (2), cylinder barrel (2) inner wall is embedded into the seal channel of right end (1) periphery,
It is formed and is reliably connected between cylinder barrel (2) and right end (1)；
The first working chamber A, the right side of the piston (4) are formed between the left side of the piston (4) and the right side of intermediate end (5)
It is formed between the left side of right end (1) in the second working chamber B, the first working chamber A and the second working chamber B and is filled with working oil
Liquid；
The left part of the left end (6) is connection plunger, and the periphery of right part offers groove, and the right part of left end (6) is inserted into cylinder
In the left end inner hole of cylinder (2), by withholding the outer wall of cylinder barrel (2), cylinder barrel (2) inner wall section is embedded into left end (6) periphery
Groove in, formed and be reliably connected between cylinder barrel (2) and left end (6)；
Piston rod left part accommodating chamber C is formed between the right side of the left end (6) and the left side of intermediate end (5).
2. a kind of high-speed rail contact line damper according to claim 1, it is characterised in that: the top of the piston (4)
Damping slot (4-1) can be shaped to axially through periphery spiral damping slot replace.
3. a kind of high-speed rail contact line damper according to claim 1, it is characterised in that: the intermediate end (5) and the right side
The material of end (1) is copper or enhancing nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588297.0A CN110219925A (en) | 2019-07-02 | 2019-07-02 | A kind of high-speed rail contact line damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588297.0A CN110219925A (en) | 2019-07-02 | 2019-07-02 | A kind of high-speed rail contact line damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219925A true CN110219925A (en) | 2019-09-10 |
Family
ID=67815796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910588297.0A Pending CN110219925A (en) | 2019-07-02 | 2019-07-02 | A kind of high-speed rail contact line damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219925A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939676A (en) * | 2019-12-19 | 2020-03-31 | 河海大学常州校区 | High-speed rail contact line buffering and damping device |
| CN113944390A (en) * | 2021-10-15 | 2022-01-18 | 兰州空间技术物理研究所 | Spacecraft cabin door opening and closing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6202807B1 (en) * | 1999-04-23 | 2001-03-20 | Avraham Y. Levi | Speed controlling hydraulic dampener |
| JP4432208B2 (en) * | 2000-05-25 | 2010-03-17 | オイレス工業株式会社 | Damper and building using it |
| CN204512280U (en) * | 2015-04-08 | 2015-07-29 | 衡水宝力工程橡胶有限公司 | A kind of damper |
| CN106369100A (en) * | 2016-09-06 | 2017-02-01 | 上海汇众汽车制造有限公司 | Automobile back shock absorber and connection process thereof |
| CN106439002A (en) * | 2015-08-07 | 2017-02-22 | Fte汽车股份有限公司 | Hydraulic cylinder, in particular slave cylinder for hydraulic clutch actuation for motor vehicles |
| CN106641244A (en) * | 2015-10-30 | 2017-05-10 | 罗凤玲 | Detachable piston rod joint and forming method thereof |
| CN206397995U (en) * | 2017-01-18 | 2017-08-11 | 南京大德减震科技有限公司 | A kind of new viscous damper |
| CN107781343A (en) * | 2016-08-25 | 2018-03-09 | 上海建顾减震科技有限公司 | Viscous damper |
| CN107893849A (en) * | 2017-12-20 | 2018-04-10 | 山东天瑞重工有限公司 | Hydraulic drill piston and preparation method thereof |
-
2019
- 2019-07-02 CN CN201910588297.0A patent/CN110219925A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6202807B1 (en) * | 1999-04-23 | 2001-03-20 | Avraham Y. Levi | Speed controlling hydraulic dampener |
| JP4432208B2 (en) * | 2000-05-25 | 2010-03-17 | オイレス工業株式会社 | Damper and building using it |
| CN204512280U (en) * | 2015-04-08 | 2015-07-29 | 衡水宝力工程橡胶有限公司 | A kind of damper |
| CN106439002A (en) * | 2015-08-07 | 2017-02-22 | Fte汽车股份有限公司 | Hydraulic cylinder, in particular slave cylinder for hydraulic clutch actuation for motor vehicles |
| CN106641244A (en) * | 2015-10-30 | 2017-05-10 | 罗凤玲 | Detachable piston rod joint and forming method thereof |
| CN107781343A (en) * | 2016-08-25 | 2018-03-09 | 上海建顾减震科技有限公司 | Viscous damper |
| CN106369100A (en) * | 2016-09-06 | 2017-02-01 | 上海汇众汽车制造有限公司 | Automobile back shock absorber and connection process thereof |
| CN206397995U (en) * | 2017-01-18 | 2017-08-11 | 南京大德减震科技有限公司 | A kind of new viscous damper |
| CN107893849A (en) * | 2017-12-20 | 2018-04-10 | 山东天瑞重工有限公司 | Hydraulic drill piston and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939676A (en) * | 2019-12-19 | 2020-03-31 | 河海大学常州校区 | High-speed rail contact line buffering and damping device |
| CN110939676B (en) * | 2019-12-19 | 2021-04-06 | 河海大学常州校区 | High-speed rail contact line buffering and damping device |
| CN113944390A (en) * | 2021-10-15 | 2022-01-18 | 兰州空间技术物理研究所 | Spacecraft cabin door opening and closing device |
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Application publication date: 20190910 |