• 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 precompression type emergency 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; the upper part of the upper end plate has transverse precompression cavities and transverse precompression plates arranged at the transverse openings of the transverse precompression cavities, and the transverse precompression cavities are internally provided with elastomeric springs. laminated through the transverse precompression plates in a pressure mode; multiple steel springs are arranged between the upper cover plate and the upper end plate in a pressure mode along the circumferential direction of the laminated elastomeric springs; and the top cover plate is arranged on the periphery of the transverse precompression cavities in a press fit mode. The pre-compression type emergency air spring assembly is simple in structure, convenient to install, low vertical stiffness under heavy load, has significant vertical deformation, high comfort and stability, is capable of preventing creep and to achieve a soft stop.
    公开号:FR3073023A1
    申请号:FR1859779
    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:

    PRECOMPRESSION TYPE PNEUMATIC SPRING ASSEMBLY
    TECHNICAL AREA
    The invention relates mainly to buffering and damping technology, and more particularly relates to a pneumatic emergency spring assembly of the precompression type.
    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 of the precompression type, which is simple in terms of structure, convenient to install, of low vertical rigidity under heavy load. , has significant vertical deformation, high comfort and stability, is capable of preventing creep and achieving a flexible stop and the like.
    To solve the above problems, the following technical solutions can be adopted:
    A precompression type 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; the upper part of the upper end plate has transverse precompression cavities and transverse precompression plates arranged at the transverse openings of the transverse precompression cavities, and the transverse precompression cavities are provided inside with springs elastomers laminated through the transverse precompression plates in a pressure mode; multiple steel springs are arranged between the upper cover plate and the upper end plate in a pressure mode along the circumferential direction of the laminated elastomeric springs; and the upper cover plate is arranged on the periphery of the transverse precompression cavities in a press-in mode.
    As an additional improvement to the above technical solution:
    The transverse precompression plate is provided on the outside with a first wear plate, and the upper cover plate is arranged on the periphery of the transverse precompression cavities in a press-in mode and brought into contact with the first plate wear.
    The lower part of the upper cover plate is provided with multiple stop collars along the circumferential direction, and the upper part of the upper end plate is provided with multiple limiting columns along the circumferential direction;
    each limiting column is mutually fitted with the corresponding stop collar., the fitting mode can be an adjustment with play, or a connection by friction sleeve, so as to reduce the sliding friction force; and each steel spring is arranged on the periphery of the corresponding collar and limiting column in a press-in mode.
    The upper part of the limiting column has an anti-loosening plate, to prevent the stop collar from being released, and the anti-loosening plate is fixed to the limiting column by bealons.
    -3The upper part of the upper end plate has a limiting plate on the periphery of the steel spring.
    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 second wear plate which is brought into contact with the elastomeric rubber in the deflated state.
    A transverse elastomeric stopper is vulcanized on the elastomeric rubber in the form of a flexible transverse stopper in the deflated state.
    The upper part of the lower end plate has transverse stop plates on both sides of the second wear plate, and the two sides of the elastomer rubber have transverse stop notches which are coordinated with the transverse stop.
    The lower part of the peripheral face of the upper end plate has 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 precompression type emergency air spring assembly of the present invention 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; the upper part of the upper end plate has transverse precompression cavities and transverse precompression plates arranged at the transverse openings of the transverse precompression cavities, and the transverse precompression cavities are provided inside with elastomeric springs laminated through the transverse precompression plates in a pressure mode; multiple steel springs are arranged between the upper cover plate and the upper end plate in a pressure mode along the circumferential direction of the laminated elastomeric springs; and the upper cover plate is arranged on the periphery of the transverse precompression cavities in a press-in mode. In this structure, multiple steel springs are provided outside the elastomeric spring laminated in the circumferential direction to form a parallel structure which is simple in terms of
    -4 structure and convenient to install; in addition, the top cover plate is fitted over the periphery of the transverse precompression cavity to move up and down, so that all vertical rigidity is provided by the steel spring, and the damping force is supplied by the laminated elastomeric spring; the damping force can be controlled by regulating the movement of the transverse precompression plate, namely the precompression of the laminated elastomer spring; it can prevent system creep, regulate damping, reduce non-linearity, and improve dynamic displacement capacity; the steel spring initially forms a precompression, and such a parallel structure with precompression 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 in the form of 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 1 is a structure diagram of the present invention.
    Caption:
    1- upper cover plate; 11- stop collar; 2- air cushion; 3- upper end plate; 31- transverse precompression cavity; 32- transverse precompression plate; 321- first wear plate; 33- limitation column; 331 anti-sagging tray; 34- limitation plate; 35- elastomer rubber; 351- transverse elastomer stop; 352- transverse stop notch; 36- retaining ring; 4- lower end plate; 41- second wear plate; 42- transverse stop plate; 5- laminated elastomer spring; 6- steel spring.
    DESCRIPTION OF THE EMBODIMENTS
    The invention will be further clarified on the basis of the following figures and embodiments.
    As shown in FIG. 1, an embodiment of the precompression type emergency pneumatic spring assembly of the present invention comprises 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; the top of the
    -5 upper end plate 3 is provided with transverse precompression cavities 31 and transverse precompression plates 32 arranged at the transverse openings of the transverse precompression cavities 31, and the transverse precompression cavities 31 are provided inside with springs laminated elastomers 5 through the transverse precompression plates 32 in a pressure mode; multiple steel springs 6 are arranged between the upper cover plate 1 and the upper end plate 3 in a pressure mode along the circumferential direction of the layered elastomeric springs 5; and the upper cover plate 1 is arranged on the periphery of the transverse precompression cavities 31 in a press-in mode. In this structure, multiple steel springs 6 are provided outside the laminated elastomeric spring 5 in the circumferential direction to form a parallel structure which is simple in structure and convenient to install; in addition, the upper cover plate 1 is fitted on the periphery of the transverse precompression cavity 31 to move up and down, so that all the vertical rigidity is provided by the steel spring 6, and the force damping is provided by the laminated elastomer spring 5; the damping force can be controlled by regulating the movement of the transverse precompression plate 32, namely the precompression of the laminated elastomer spring 5; it can prevent the creep of the laminated elastomer spring 5, regulate damping, reduce non-linearity, and improve the dynamic displacement capacity; the steel spring 6 initially forms a precompression, and such a parallel structure with precompression 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 in the form of a transverse flexible stop, and during this time make a rigid vertical contact to act as a vertical hard stop.
    In this embodiment, the transverse precompression plate 32 is provided on the outside with a first wear plate 321, and the upper cover plate 1 is arranged on the periphery of the transverse precompression cavities 31 in a mode in fitting and contacting the first wear plate 321. In this structure, the laminated elastomer spring 5 has precompression, and the first wear plate 321 and the upper cover plate 1 can slide relatively; the sliding friction force is
    The damping force of the emergency spring, and the damping can be regulated by regulating the precompression of the laminated elastomer spring 5 before installation, so as to effectively attenuate the vibration of the system. Meanwhile, the first wear plate 321 of the laminate spring can improve friction life and reduce noise.
    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 33 along the circumferential direction; each limiting column 33 is mutually fitted with the corresponding stop collar 11, and each steel spring 6 is arranged on the periphery of the corresponding stop collar 11 and corresponding limiting column 33 in a fitting mode. The stop collar 11 is used in conjunction with the limiting column 33, 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 33 is provided with an anti-slackening plate 331 to prevent the stop collar 11 from being released, and the anti-slackening plate 331 is fixed to the column limitation 33 by bolts. The anti-slackening plate 331 is used to prevent the stop collar 11 from being released from the upper part of the limiting column 33 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 provided with a limitation plate 34 on the periphery of the steel spring 6. The limitation plate restricts transversely 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 35, and the upper part of the lower end plate 4 is provided with a second wear plate 41 which is brought into contact with the elastomeric rubber in the deflated state. In the deflated state, the elastomer rubber 35 and the second wear plate 41 are in hard contact to restrict the vertical movement of the upper end plate 3 and the lower end plate 4. The transverse elastomer stop 351 acts as a flexible transverse stop in the deflated state.
    -7 In this embodiment, the upper part of the lower end plate 4 is provided with transverse stop plates 42 on both sides of the second wear plate 41, and the two sides of the elastomeric rubber 35 are provided with 'transverse stop notches 352 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 put in contact with the transverse stop notch 352 of the elastomeric rubber 35, thus the elastomeric rubber 35 provides transverse rigidity and a flexible stop for the system, to remove the train as it passes through the small curve, and ensure 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 36; one end of the air cushion 2 is attached with the retaining ring 36, 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 many possible variants and modifications of the present invention, or equivalent embodiments with an equivalent change. Consequently, all the 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 embodiment 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. Pre-compression type 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) , wherein the periphery of the upper end plate (3) is connected to the periphery of the lower end plate (4) via the air cushion (2); the upper part of the upper end plate (3) is provided with transverse precompression cavities (31) and transverse precompression plates (32) arranged at the transverse openings of the transverse precompression cavities (31), and the cavities transverse precompression (31) have laminated elastomeric springs (5) therein through the transverse precompression plates (32) in a pressure mode; multiple steel springs (6) are arranged between the upper cover plate (1) and the upper end plate (3) in a pressure mode along the circumferential direction of the laminated elastomeric springs (5); and the upper cover plate (1) is arranged on the periphery of the transverse precompression cavities (31) in a press-in mode.
    [2" id="c-fr-0002]
    2. A precompression type emergency pneumatic spring assembly according to claim 1, in which the transverse precompression plate (32) is provided on the outside with a first wear plate (321), and the upper cover plate. (1) is arranged on the periphery of the transverse precompression cavities (31) in a fitting mode and brought into contact with the first wear plate (321).
    [3" id="c-fr-0003]
    3. A precompression type 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 part upper end plate (3) is provided with multiple limiting columns (33) along the circumferential direction; each limitation column (33) 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 stop collar (11) and of the corresponding limiting column (33) in a fitting mode.
    [4" id="c-fr-0004]
    4. Pre-compression type emergency air spring assembly according to the
    Claim 9, in which the upper part of the limitation column (33) is provided with an anti-slackening plate (331) to prevent the stop collar (11) from being released, and the anti-slackening plate ( 331) is fixed to the limiting column (33) by bolts.
    [5" id="c-fr-0005]
    5. A precompression type emergency air spring assembly according to claim 4, in which the upper part of the upper end plate (3) is provided with a limitation plate (34) on the periphery of the steel spring ( 6).
    [6" id="c-fr-0006]
    6. A precompression type emergency air spring assembly according to claim 1, in which the lower part of the upper end plate (3) is provided with an elastomer rubber (35), and the upper part of the lower end plate (4) is provided with a second wear plate (41) which is brought into contact with the elastomer rubber (35) in the deflated state.
    [7" id="c-fr-0007]
    7. A pre-compression type emergency pneumatic spring assembly according to claim 6, in which a transverse elastomeric stop (351) is installed on the elastomeric rubber (35) in the form of a transverse flexible stop in the deflated state.
    [8" id="c-fr-0008]
    8. A precompression type emergency air 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 second plate. wear (41), and both sides of the elastomeric rubber (35) are provided with transverse stop notches (352) which are coordinated with the transverse stop plates (42).
    [9" id="c-fr-0009]
    9. A precompression type emergency air spring assembly according to claim 1, in which the lower part of the peripheral face of the upper end plate (3) is provided with a retaining ring ( 36); one end of the air cushion (2) is attached with the retaining ring (36), and the other end is in self-sealing connection with the lower end plate (4).
    [10" id="c-fr-0010]
    10. A precompression type 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 (36); one end of the air cushion (2) is attached with the retaining ring (36), and the other end is in self-sealing connection with the lower end plate (4).
    类似技术:
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    同族专利:
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    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 |
    2021-01-15| PLSC| Publication of the preliminary search report|Effective date: 20210115 |
    2021-10-28| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN2017110200332|2017-10-27|
    CN201711020033.2A|CN107740832B|2017-10-27|2017-10-27|Pre-pressing type emergency air spring assembly|
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