• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is disclosed a backup air spring assembly comprising an upper cover plate, an air cushion, an upper end plate and a lower end plate; the periphery of the upper end plate is connected to the periphery of the lower end plate through the air cushion; an hourglass elastomer is connected between the top cover plate and the top end plate; multiple steel springs are arranged between the upper cover plate and the upper end plate in the circumferential direction of the hourglass elastomer in a pressure mode. The emergency air spring assembly is simple in structure, convenient to install, low vertical rigidity under heavy load, has significant vertical deformation, high comfort and stability, is capable of preventing creep and achieving soft stop and others.
    公开号:FR3073024A1
    申请号:FR1859784
    申请日:2018-10-23
    公开日:2019-05-03
    发明作者:Duomin Nong；Te Ye；Canhui Chen；Haitao Cheng；Jun Zhou；Qiang Chen；Guoqi Duan；Qinghua Chen；Yaokun Long
    申请人:Zhuzhou Times New Material Technology Co Ltd；
    IPC主号:
    专利说明:

    PNEUMATIC SPARE SPRING ASSEMBLY
    TECHNICAL AREA
    The invention relates mainly to buffering and damping technology, and more particularly relates to an emergency pneumatic spring assembly.
    RELATED ART
    The air spring assembly is widely applied in railcars, overloaded vehicles and other occasions of heavy buffering or damping. Usually, this spring assembly includes an elastomer located between a pair of rigid end plates. The elastomer is made of rubber, and compressed by loads acting on the spring assembly. In the prior art, the rubber relief spring will generate creep deformation during the service life due to the characteristics of the rubber, and during this time the vertical stiffness will increase due to the non-linearity of the rubber when the loads are increased. In some high-speed train projects, it is necessary that the emergency spring has a small change in vertical stiffness, a large dynamic displacement and an absence of upholstery during life. Thus, the existing rubber spare spring cannot fulfill this requirement.
    When the air spring is deflated, a hard stop will be generated in the vertical direction generally, and during this time transverse sliding friction will occur between the cover plate and the wear plate, which cannot fulfill the requirement of stiffness and the flexible stop requirement of certain high-speed train projects in the transverse direction in the deflated state.
    SUMMARY OF THE INVENTION
    The objects of the invention are in view of the aforementioned problems of the prior art, and provide an emergency pneumatic spring assembly, which is simple in terms of structure, convenient to install, of low vertical rigidity under heavy load, has a deformation significant vertical, high comfort and stability, is able to prevent creep and achieve a flexible stop and others.
    To solve the above problems, the following technical solutions can be
    -2 adopted:
    An emergency air spring assembly includes an upper cover plate, an air cushion, an upper end plate and a lower end plate; the periphery of the upper end plate is connected to the periphery of the lower end plate via the air cushion; an hourglass elastomer is connected between the upper cover plate and the upper end plate; multiple steel springs are arranged between the upper cover plate and the upper end plate in the circumferential direction of the hourglass elastomer in a pressure mode.
    As an additional improvement to the above technical solution:
    Preferably, the hourglass elastomer comprises a part in the lower position, a part in the upper position and a separation plate; the partition plate is installed in a fixed manner between the part in the lower position and the part in the upper position; the upper part of the part in the upper position and the upper cover plate are in sealing connection; the lower part of the part in the lower position and the upper end plate are in sealing connection.
    Preferably, the lower part of the upper cover plate is provided with multiple abutment collars along the circumferential direction, and the upper part of the upper end plate is provided with multiple limiting columns; each limitation column is mutually fitted with the corresponding stop collar; the push-in mode can be an adjustment with play, or a friction sleeve connection, so as to reduce the sliding friction force; each steel spring is arranged on the periphery of the corresponding stop collar and of the limiting column in a press-in mode.
    Preferably, the upper part of the limiting column is provided with an anti-slackening plate to prevent the stop collar from being released, and the anti-slacking plate is fixed to the limiting column by bolts.
    Preferably, the upper part of the upper end plate is provided with a limiting plate on the periphery of the steel spring.
    Preferably, the lower part of the upper end plate is provided with an elastomeric rubber, and the upper part of the lower end plate is provided with a
    -3 wear plate which is brought into contact with the elastomeric rubber in the deflated state.
    Preferably, a transverse elastomeric stopper is vulcanized on the elastomeric rubber in the form of a flexible transverse stopper in the deflated state.
    Preferably, the upper part of the lower end plate is provided with transverse stop plates on both sides of the wear plate, and the two sides of the elastomeric rubber are provided with transverse stop notches which are coordinated with the transverse stop plates.
    Preferably, the lower part of the peripheral face of the upper end plate is provided with a retaining ring; one end of the air bag is attached with the retaining ring, and the other end is in self-sealing connection with the bottom end plate.
    In comparison with the prior art, the invention has the following advantages:
    The emergency air spring assembly of the present invention comprises an upper cover plate, an air cushion, an upper end plate and a lower end plate; the periphery of the upper end plate is connected to the periphery of the lower end plate via the air cushion; an hourglass elastomer is connected between the upper cover plate and the upper end plate; multiple steel springs are arranged between the upper cover plate and the upper end plate in the circumferential direction of the hourglass elastomer in a pressure mode. In this structure, multiple steel springs are provided outside the hourglass elastomer in the circumferential direction to form a parallel structure which is simple in structure and convenient to install; in addition, each steel spring initially forms the precompression, and the parallel structure with precompression can reduce the creep of the hourglass elastomer, decrease the non-linearity, and improve the dynamic displacement capacity; and it can considerably reduce the vertical rigidity under heavy load of the secondary spring, and improve the comfort of a train with heavy load; it can provide transverse rigidity for the system in the deflated state to act as a transverse flexible stop, and during this time make a rigid vertical contact to act as a vertical hard stop.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Figure 4 is a structure diagram of the present invention.
    Caption:
    1- upper cover plate; 11- stop collar; 2- air cushion; 3- upper end plate; 31- limitation column; 311- anti-sagging plate; 32- limitation plate; 33- elastomer rubber; 331- transverse elastomer stop; 332- transverse stop notch; 34- retaining ring; 4- lower end plate; 41- wear plate; 42- transverse stop plate; 5- hourglass elastomer; 51- part in lower position; 52part in the upper position; 53- separation plate; 6- steel spring.
    DESCRIPTION OF THE EMBODIMENTS
    The present invention will be further clarified on the basis of the following figures and embodiments.
    As shown in Figure 1, the emergency air spring assembly in the present invention includes an upper cover plate 1, an air cushion 2, an upper end plate 3 and a lower end plate 4; the periphery of the upper end plate 3 is connected to the periphery of the lower end plate 4 via the air cushion 2; an hourglass elastomer 5 is connected between the upper cover plate 1 and the upper end plate 3; multiple steel springs 6 are arranged between the upper cover plate 1 and the upper end plate 3 in the circumferential direction of the hourglass elastomer 5 in a pressure mode. In this structure, multiple steel springs 6 are provided outside the hourglass elastomer in the circumferential direction to form a parallel structure which is simple in terms of structure, convenient to install; in addition, each steel spring 6 initially forms the precompression, and the parallel structure with precompression can reduce the creep of the hourglass elastomer 5, reduce the non-linearity, and improve the dynamic displacement capacity; and it can considerably reduce the vertical rigidity under heavy load of the secondary spring, and improve the comfort of a train with heavy load; it can provide transverse rigidity for the system in the deflated state to act as a transverse flexible stop.
    In this embodiment, the hourglass elastomer 5 comprises a part in the lower position 51, a part in the upper position 52 and a separation plate 53; the separation plate 53 is installed in a fixed manner between the part in the lower position 51 and the part in
    -5 upper position 52; the upper part of the part in the upper position 52 and the upper cover plate 1 are in sealing connection; the lower part of the part in the lower position 51 and the upper end plate 3 are in sealing connection. In the structure, the provision of the part in the lower position 51 and the part in the upper position 52 results in an increase in the overall elevation of the hourglass elastomer 5, namely, to considerably reduce the vertical rigidity of the secondary spring to the heavy loads, and improve the comfort of the secondary spring to heavy loads; moreover, the part in the lower position 51 is separated from the part in the upper position 52 by the separation plate 53, the transverse stability increases while the elevation increases; in addition, the upper part of the part in the upper position 52 and the upper cover plate 1 are in sealing connection, and the bottom of the part in the lower position 51 and the upper end plate 3 are in sealing connection for prevent air leakage, so that the hourglass elastomer 5 can provide dampening for the system, to effectively dampen the vibration of the system.
    In this embodiment, the lower part of the upper cover plate 1 is provided with multiple abutment collars 11 along the circumferential direction, and the upper part of the upper end plate 3 is provided with multiple limiting columns 31 along the circumferential direction; each limitation column 31 is mutually fitted with the corresponding stop collar 11, and each steel spring 6 is arranged on the periphery of the stop collar 11 and corresponding limitation column 31 in a fitting mode. The stop collar 11 is used in conjunction with the limiting column 31, so as to move the upper cover plate 1 up and down, restrict and limit the transverse movement to prevent transverse deformation.
    In this embodiment, the upper part of the limitation column 31 is provided with an anti-slackening plate 311 to prevent the stop collar 11 from being released, and the anti-slackening plate 311 is fixed to the column limitation 31 by bolts. The anti-slackening plate 311 is used to prevent the stop collar 11 from being released from the upper part of the limitation column 31 during the elevation, so as to improve the reliability of the entire structure.
    In this embodiment, the upper part of the upper end plate 3 is
    -6 has a limitation plate 32 on the periphery of the steel spring 6. The limitation plate 32 transversely restricts and limits the steel spring 6 on its periphery, so as to prevent transverse deformation.
    In this embodiment, the lower part of the upper end plate 3 is provided with an elastomeric rubber 33, and the upper part of the lower end plate 4 is provided with a wear plate 41 which is brought into contact with the elastomeric rubber 33 in the deflated state. In the deflated state, the elastomer rubber 33 and the wear plate 41 are in hard contact to restrict the vertical movement of the upper end plate 3 and the lower end plate 4. A transverse elastomer stop 331 is vulcanized on the elastomeric rubber 33, and the transverse elastomeric stop 331 is used as a flexible transverse stop in the deflated state.
    In this embodiment, the upper part of the lower end plate 4 is provided with transverse stop plates 42 on both sides of the wear plate 41, and the two sides of the elastomeric rubber 33 are provided with notches transverse stop 332 which are coordinated with the transverse stop plates 42. In the deflated state, after a train slides a certain distance, the transverse stop plate 42 of the lower end plate 4 is brought into contact with the transverse stop notch 332 of the elastomeric rubber 33, thus the elastomeric rubber 33 provides transverse rigidity and a flexible stop for the system, to remove the train as it passes through the small curve, and ensure the safety of the train in the deflated state.
    In this embodiment, the lower part of the peripheral face of the upper end plate 3 is provided with a retaining ring 34; one end of the air cushion 2 is attached with the retaining ring 34, and the other end is in self-sealing connection with the lower end plate 4. In this structure, the small opening of the air cushion 2 is in self-sealing connection with the lower end plate 4, to prevent any air leakage.
    While the preferred embodiments of the present invention have been disclosed as above, they are not intended to limit the present invention. Anyone skilled in the art, without departing from the scope of the technical solution of the present invention, can take advantage of the technical content described above to perform numerous variants and modifications.
    -7 possible of the present invention, or equivalent embodiments with an equivalent change. Therefore, all content without departing from the technical solution of the present invention, on the basis of any simple modification, variants and equivalent modifications of the present invention effected by the technical essence of the present invention for the mode of 5 above, would fall within the scope of protection of the technical solution of the present invention.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Emergency air spring assembly, comprising an upper cover plate (1), an air cushion (2), an upper end plate (3) and a lower end plate (4), in which the periphery of the upper end plate (3) is connected to the periphery of the lower end plate (4) via the air cushion (2); an hourglass elastomer (5) is connected between the upper cover plate (1) and the upper end plate (3); multiple steel springs (6) are arranged between the upper cover plate (1) and the upper end plate (3) in the circumferential direction of the hourglass elastomer (5) in a pressure mode.
    [2" id="c-fr-0002]
    2. An emergency pneumatic spring assembly according to claim 1, in which the hourglass elastomer (5) comprises a part in the lower position (51), a part in the upper position (52) and a separation plate (53); the partition plate (53) is fixedly installed between the part in the lower position (51) and the part in the upper position (52); the upper part of the upper position part (52) and the upper cover plate (1) are in sealing connection; the lower part of the part in the lower position (51) and the upper end plate (3) are in sealing connection.
    [3" id="c-fr-0003]
    3. An emergency air spring assembly according to claim 2, in which the lower part of the upper cover plate (1) is provided with multiple stop collars (11) along the circumferential direction, and the upper part of the plate upper end (3) is provided with multiple limiting columns (31) along the circumferential direction; each limitation column (31) is mutually fitted with the corresponding stop collar (11); the push-in mode can be an adjustment with play, or a friction sleeve connection, so as to reduce the sliding friction force; each steel spring (6) is arranged on the periphery of the abutment collar (11) and of the corresponding limiting column (31) in a fitting mode.
    [4" id="c-fr-0004]
    4. An emergency air spring assembly according to claim 3, in which the upper part of the limitation column (31) is provided with an anti-slackening plate (311) to prevent the stop collar (11) from being released. , and the anti-slackening plate (311) is fixed to the limitation column (31) by bolts.
    [5" id="c-fr-0005]
    5. An emergency air spring assembly according to claim 4, in which the part
    -9superior of the upper end plate (3) is provided with a limitation plate (32) on the periphery of the steel spring (6).
    [6" id="c-fr-0006]
    6. An emergency air spring assembly according to any one of claims 1 to 5, in which the lower part of the upper end plate (3) is provided with an elastomer rubber (33), and the upper part of the lower end plate (4) has a wear plate (41) which is contacted with the elastomeric rubber (33) in the deflated state.
    [7" id="c-fr-0007]
    7. An emergency air spring assembly according to claim 6, in which a transverse elastomeric stop (331) is vulcanized on the elastomeric rubber (33) in the form of a transverse flexible stop in the deflated state.
    [8" id="c-fr-0008]
    8. An emergency pneumatic spring assembly according to claim 7, in which the upper part of the lower end plate (4) is provided with transverse stop plates (42) on both sides of the wear plate (41), and both sides of the elastomeric rubber (33) are provided with transverse stop notches (332) which are coordinated with the transverse stop plates (42).
    [9" id="c-fr-0009]
    9. An emergency air spring assembly according to any one of claims 1 to 5, in which the lower part of the peripheral face of the upper end plate (3) is provided with a retaining ring (34); one end of the air cushion (2) is attached with the retaining ring (34), and the other end is in self-sealing connection with the lower end plate (4).
    [10" id="c-fr-0010]
    10. An emergency air spring assembly according to claim 8, in which the lower part of the peripheral face of the upper end plate (3) is provided with a retaining ring (34); one end of the air cushion (2) is attached with the retaining ring (34), and the other end is in self-sealing connection with the lower end plate (4).
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    同族专利:
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    引用文献:
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    GB123212A|1918-03-26|1919-02-20|William Henry Dallimore|Improvements relating to the Coloured Parts of Buttons, Hat-pin Heads, Umbrella Handles, and the like.|
    DE6606697U|1967-07-22|1970-11-26|Maschf Augsburg Nuernberg Ag|SUSPENSION FOR VEHICLES, IN PARTICULAR RAIL VEHICLES|
    DE59602664D1|1995-12-12|1999-09-09|Phoenix Ag|SPRING DEVICE|
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    RU2335688C2|2006-11-13|2008-10-10|Александр Юрьевич Усов|Quick release device for jointing pneumatic transport pipes|
    CN202038318U|2011-03-10|2011-11-16|南车青岛四方机车车辆股份有限公司|Composite axle box positioning device|
    CN103395429A|2013-08-09|2013-11-20|株洲时代新材料科技股份有限公司|Air spring for rail traffic|
    CN203580971U|2013-10-25|2014-05-07|广州电力机车有限公司|Secondary horizontal stop device for eight-shaft electric locomotive steering frame|
    CN205854162U|2016-08-24|2017-01-04|谢红太|A kind of combined damping buffer unit being applicable to high speed motor car|
    CN206206472U|2016-12-05|2017-05-31|株洲时代新材料科技股份有限公司|A kind of air spring seal arrangement|
    CN207364173U|2017-10-27|2018-05-15|株洲时代新材料科技股份有限公司|Emergent air spring assembly|
    CN107740837B|2017-10-27|2021-03-02|株洲时代新材料科技股份有限公司|Emergency air spring assembly|CN107740832B|2017-10-27|2020-08-07|株洲时代新材料科技股份有限公司|Pre-pressing type emergency air spring assembly|
    CN107740837B|2017-10-27|2021-03-02|株洲时代新材料科技股份有限公司|Emergency air spring assembly|
    CN109281978B|2018-11-07|2021-06-01|株洲时代瑞唯减振装备有限公司|Pre-pressing type air spring system|
    CN110259882B|2019-06-26|2020-12-25|滁州建祺电器配件有限公司|Special-shaped spring with auxiliary spring layer|
    CN110375026B|2019-07-18|2021-10-01|株洲时代瑞唯减振装备有限公司|Variable-rigidity hourglass spring and rigidity changing method|
    法律状态:
    2019-10-29| PLFP| Fee payment|Year of fee payment: 2 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 3 |
    2021-04-30| PLSC| Publication of the preliminary search report|Effective date: 20210430 |
    2021-10-28| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201711021632.6|2017-10-27|
    CN201711021632.6A|CN107740837B|2017-10-27|2017-10-27|Emergency air spring assembly|
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