CN104736360B - 用于空气弹簧系统的密封装置 - Google Patents

用于空气弹簧系统的密封装置 Download PDF

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CN104736360B
CN104736360B CN201380054816.6A CN201380054816A CN104736360B CN 104736360 B CN104736360 B CN 104736360B CN 201380054816 A CN201380054816 A CN 201380054816A CN 104736360 B CN104736360 B CN 104736360B
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sealing device
rolling
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outer tube
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CN104736360A (zh
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K·坎托尔
M·坦措什
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Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B60G15/14—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/048—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics with the regulating means inside the fluid springs
    • B60G17/0485—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics with the regulating means inside the fluid springs the springs being pneumatic springs with a flexible wall, e.g. with levelling valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0523—Regulating distributors or valves for pneumatic springs
    • B60G17/0528—Pressure regulating or air filling 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm 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
    • F16F9/3235—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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B60G15/066—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper the spring being different from a coil spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/314—The spring being a pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/126—Mounting of pneumatic springs
    • B60G2204/1262—Mounting of pneumatic springs on a damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • 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
    • F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
    • F16F9/084—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall comprising a gas spring contained within a flexible wall, the wall not being in contact with the damping fluid, i.e. mounted externally on the damper cylinder
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

本发明涉及一种用于空气弹簧系统的密封装置，该密封装置用于密封位于滚动管(1)和外管(2)中的减震器(3)，该空气弹簧系统具有至少一个集成的控制阀(4)，用于给压力室(6)施加压缩空气，所述压力室在外管(2)、滚动管(1)和连接所述外管和所述滚动管的空气弹簧波纹管(5)之间形成，此外，该密封装置设置在滚动管(1)的内周面和减震器(3)的外周面之间和/或设置在外管(2)的内周面和减震器(3)的外周面之间，阶梯形地构造在外周面上的支承环(7)设置在滚动管(1)的远端上和/或设置在外管(2)的远端上。

Description

用于空气弹簧系统的密封装置
技术领域
本发明涉及一种用于空气弹簧系统的密封装置，该密封装置用于密封位于滚动管和外管中的减震器，该空气弹簧系统具有至少一个集成的控制阀，该控制阀用于对压力室施加压缩空气，所述压力室在外管、滚动管和将所述外管和所述滚动管连接起来的空气弹簧波纹管之间形成，此外，该密封装置设置在滚动管的内周面和减震器的外周面之间和/或设置在外管的内周面和减震器的外周面之间。
本发明的应用领域尤其是延及车辆技术。在商用车的底盘的区域内例如使用减震器，这些减震器包括通常液压的减震元件和与该减震元件配合作用的空气弹簧系统。在集成的结构方式的意义上，减震元件通常具有容器管，该容器管与空气弹簧的滚动管相连，该滚动管经由作为滚动波纹管起作用的空气弹簧波纹管与同心地且相对于滚动管可轴向移动地设置的外管相连。空气弹簧波纹管、滚动管及外管限定处于用于弹动的空气压力下的压力室。
空气弹簧系统包括空气弹簧，该空气弹簧具有减震器，在该空气弹簧系统中总是重要的是，保证在减震器和外管或滚动管之间的密封。
背景技术
用于密封位于滚动管和外管中的减震器的一般性已知的解决方案是在滚动管的孔中构造的环形槽，该环形槽容纳至少一个密封元件。该解决方案的缺点是，环形槽仅通过对通常制造为注塑件的滚动管的后续的车削加工才能形成，由此提高了每个构件的加工时间。此外，这种解决方案在文献DE102010012346A1的图1中示出。
由文献EP1262341B1已知一种弹簧腿，该弹簧腿包括减震器，该减震器包含外管和活塞杆以及杆导向装置。该杆导向装置包括杆密封装置，该杆密封装置具有垫圈连同与垫圈相连的多个密封件。垫圈被容纳在所述杆导向装置的上部部分中。此外，弹簧腿包括弹性体密封件，该弹性体密封件设置在减震器和空气弹簧活塞之间，用于对密封腔进行密封。弹性体密封件设置在减震器杆密封装置的垫圈和空气弹簧活塞的径向朝内延伸的凸缘之间。根据一个优选的实施形式，弹簧腿包括与弹性体密封件相连的环形金属板。环形金属板被设计成，使得它与空气弹簧活塞相配，以便使弹性体密封件在所述空气弹簧活塞的径向朝内延伸的凸缘和减震器的外管的凸缘部分之间定位。
此外，由DE10215492B3已知一种用于空气弹簧系统的密封装置，该密封装置用于将减震器的第一封闭压力室相对于弹簧波纹管的第二封闭压力室密封，该第一封闭压力室包含第一液压介质和在该第一封闭压力室中可移动地引导的活塞杆，该第二封闭压力室具有第二气态压力介质。第一和第二压力介质经过在可同心相对移动的减震器和该减震器的活塞杆之间的要被密封的间隙对利用至少一个预紧元件预紧的密封环施加压力。在减震器中设置槽形空间，具有密封环和所述至少一个预紧元件的密封装置被设置到该槽形空间中，在第二压力室和槽形空间之间，在槽底部和/或在至少一个槽侧面中的预紧元件的区域内设置压力技术的连接。此外，密封环和所述至少一个预紧元件如此彼此协调，使得与第一和第二压力介质的压缩程度无关，密封环在直接经由一个或多个密封边缘贴靠的机器构件上的接触压应力分布保持恒定。优选所述至少一个预紧元件包括两个弹性夹紧环。
此外，由文献DE102010026236A1已知一种具有缸体的气动悬挂装置以及设有活塞杆的活塞。在此，活塞和缸体一起构成气缸。缸体横穿悬挂装置主体，其中，在悬挂装置主体和缸体之间设置密封件。缸体和密封件保证闭锁和密封悬挂装置主体的开口。在悬挂装置主体的开口中的密封件安装在悬挂装置主体的肩部与弹性环之间，所述弹性环靠着悬挂装置主体的径向边缘设置。所述悬挂装置主体的肩部与靠着径向边缘设置的弹性环一起构成密封座。该密封座在无需对悬挂装置主体进行加工的情况下实现。因此，虽然取消了加工步骤，但是需要专用工具。此外，该气动悬挂装置包含挤压到弹性环上的并且与活塞杆相连的弹簧，因此活塞杆进入缸体内会压缩所述弹簧。
DE10037026C1公开了一种空气弹簧腿，其包括可在滚动外壳上滚动的滚动波纹管、设置在滚动波纹管和/或滚动外壳内部的液压减震器以及设有密封件的上部和下部后围件和固定件，该液压减震器具有振荡地沉入其中的活塞杆。使用O形环作为密封件，这些O形环处于第一构件的分别在一侧沿轴向和径向开放的凹部中，这些O形环在径向上支承在第二构件上并在轴向上通过与第一构件相连的环保持和/或夹紧。保持O形环密封件的所述环构造为单次或多次径向剖分的，并且作为卡扣连接件接合到第一构件的环形槽中。
发明内容
因此本发明的任务是，提供一种用于空气弹簧系统的密封装置，该密封装置确保在减震器和滚动管之间的密封，但也确保在减振器和外管之间的密封，在空气弹簧系统上的密封装置的生产和装配应被改进。
该任务通过本发明的用于空气弹簧系统的密封装置解决，该密封装置用于密封位于滚动管和外管中的减震器，该空气弹簧系统具有至少一个控制阀，用于给压力室施加压缩空气，所述压力室在外管、滚动管以及将所述外管和所述滚动管连接起来的空气弹簧波纹管之间形成，此外，该密封装置设置在滚动管的内周面和减震器的外周面之间和/或设置在外管的内周面和减震器的外周面之间，阶梯形地构造在外周面上的支承环设置在滚动管的远端上和/或设置在外管的远端上，所述滚动管的远端和所述外管的远端在内周面上具有构造用于容纳支承环的容纳区域，该容纳区域比周围区域具有更大的内径，内径的增大是突变式的，由此形成肩部，密封元件在轴向上设置在支承环的一个端面和肩部之间，并且在密封元件和支承环的所述一个端面之间设置垫圈。
根据本发明，阶梯状地构造在外周面上的支承环设置在滚动管的远端上和/或设置在外管的远端上。阶梯环在此部分地伸入滚动管和/或外管中。阶梯环的与之相比较小的部分设置在滚动管外部和/或在外管外部。可考虑支承环仅设置在外管上或仅设置在滚动管上，但特别有利的是，支承环不仅设置在外管上而且设置在滚动管上。
特别优选支承环由金属材料制成。金属支承环相对于由聚合物制成的支承环具有更高的强度和耐磨性的优点。特别有利的是选择轻金属、例如尤其是铝，由此可以实现重量削减。
本发明包含如下技术教导：支承环与滚动管和/或外管材料锁合地相连。在此特别是焊接或粘接连接是适合的。
优选滚动管的远端和/或外管的远端在内周面上具有构造用于容纳支承环的容纳区域，该容纳区域具有比周围区域大的内径，内径的增大是突变式的，由此导致形成肩部。容纳区域在加工技术上通过对滚动管的远端和/或外管的远端的扩孔制成。但也可考虑，滚动管和/或外管直接按原型成型技术被制造有容纳区域。滚动管和/或外管的内径的突变式增大基于清晰的边缘实现，该边缘优选垂直于内周面延伸。由此在具有较大内径的容纳区域和与之相比具有较小内径的周围区域之间构成肩部。
根据一个优选实施例，密封元件沿轴向设置在支承环的一个端面和肩部之间。密封元件设置在减震器的外周面上并且处于容纳区域内。有利地，密封元件是O形环。
根据另一个优选实施例，在密封元件和支承环的所述一个端面之间设置垫圈。该垫圈不仅贴靠在支承环上而且贴靠在密封元件上并且由此保证密封元件的位置。
优选支承环具有至少两个阶梯面，其中一个阶梯面用作为滚动管的或外管的支承面，并且另一个阶梯面用作为密封元件的或垫圈的支承面。用作为滚动管的或外管的支承面的阶梯面将支承环固定在滚动管上或固定在外管上。有利地，在该支承面上实现材料锁合的连接。用作为密封元件的或垫圈的支承面的阶梯面实现密封元件或垫圈的轴向定位。
此外优选垫圈浮动地支承在减震器的外周面和滚动管的内周面之间，或浮动地支承在减震器的外周面和外管的内周面之间。因此垫圈构造成，使得其被设置为相对于减震器的外周面具有松动的公差，但也相对于滚动管的内周面或相对于外管的内周面具有松动的公差。通过这些公差防止在垫圈中的应力，并且促进垫圈沿着减震器的外周面的轴向运动。另外建议，垫圈由金属材料制成，并且垫圈的与密封元件相配合的端面被磨平。金属垫圈比由聚合物制成的垫圈具有更高的耐磨性和更高的强度。此外，所述被磨平的端面能实现在垫圈和密封元件之间的优化的接触并且由此实现优化的密封。
本发明包括如下技术教导：支承环的用作为密封元件的支承面的端面被磨平。所述被磨平的端面在该情况下也允许在支承环和密封元件之间的优化的接触以及优化的密封。
附图说明
下面根据附图结合本发明的优选实施例的说明一起详细示出改进本发明的其它措施。其中：
图1是具有按本发明的密封装置的空气弹簧系统的局部纵剖面图；
图2是具有按本发明的第一优选实施例的密封装置的空气弹簧系统的放大的纵剖面图。
具体实施方式
根据图1的空气弹簧系统主要包括具有上固定吊耳13的外管2，具有对应的下固定吊耳14的滚动管1与该外管相对置。下固定吊耳14是液压减震器3的组成部分，该液压减震器同轴地被外管2和滚动管1包围。上固定吊耳13与减震器3的活塞杆相连。由弹性体材料制成的空气弹簧波纹管5在外管2和滚动管1之间延伸，该空气弹簧波纹管根据空气弹簧行程在滚动管1的外表面上滚动。由外管2、滚动管1及空气弹簧波纹管5构成压力室6，该压力室施加有压缩空气，满足空气弹簧系统的空气弹簧功能。为了给压力室6施加压力，在滚动管1的内周面上设置控制阀4。此外，同轴地在外管2上一体成型的管上部分15连同管下部分16和在这两个管部分之间设置并且预紧的压缩弹簧17一起构成伸缩装置。
阶梯形地构造在外周面上的金属的支承环7a和7b分别与滚动管1的远端和外管2的远端材料锁合地相连。所述滚动管1的远端和所述外管2的远端在内周面上具有构造用于容纳支承环7a和7b的容纳区域8。该容纳区域比周围区域具有更大的内径，由此形成肩部9。
图2示出了图1的下部区域的放大图，根据图2以O形环的形式的密封元件10设置在减震器3的外周面上。该密封元件10通过在支承环7b的一个端面上沿轴向设置的垫圈11固定。支承环7b具有两个阶梯面12a和12b，其中一个阶梯面12b用作为滚动管1的支承面并且另一个阶梯面12a用作为垫圈11的支承面。旁边的图示出了仅部分示出的密封装置的放大图。
本发明并不局限于上述的优选实施例。更确切地说，也可考虑被包含在后面权利要求书的保护范围之内的变形方案。因此，例如也可能的是，取代O形环，将其它的密封元件10设置到减震器3的外周面上，该密封元件确保可靠的密封功能。
此外应当指出，“包括”不排除另外的元件或步骤，并且“一个”不排除多个的情况。还应当指出，参照上述实施例中的一个实施例说明的特征或步骤也可以与上述的其它实施例的其它特征或步骤组合使用。在权利要求书中的附图标记不应被认为是限制性的。
附图标记列表
1 滚动管
2 外管
3 减震器
4 控制阀
5 空气弹簧波纹管
6 压力室
7a,7b 支承环
8 容纳区域
9 肩部
10 密封元件
11 垫圈
12a,12b 阶梯面
13 上固定吊耳
14 下固定吊耳
15 管上部分
16 管下部分
17 压缩弹簧

Claims (6)

1.用于空气弹簧系统的密封装置，该密封装置用于密封位于滚动管(1)和外管(2)中的减震器(3)，该空气弹簧系统具有至少一个控制阀(4)，用于给压力室(6)施加压缩空气，所述压力室在外管(2)、滚动管(1)以及将所述外管和所述滚动管连接起来的空气弹簧波纹管(5)之间形成，此外，该密封装置设置在滚动管(1)的内周面和减震器(3)的外周面之间和/或设置在外管(2)的内周面和减震器(3)的外周面之间，阶梯形地构造在外周面上的支承环(7)设置在滚动管(1)的远端上和/或设置在外管(2)的远端上，其特征在于，所述滚动管(1)的远端和所述外管(2)的远端在内周面上具有构造用于容纳支承环(7)的容纳区域(8)，该容纳区域比周围区域具有更大的内径，内径的增大是突变式的，由此形成肩部(9)，密封元件(10)在轴向上设置在支承环(7)的一个端面和肩部(9)之间，并且在密封元件(10)和支承环(7)的所述一个端面之间设置垫圈(11)。
2.按照权利要求1所述的密封装置，其特征在于，所述支承环(7)由金属材料或聚合材料制成。
3.按照权利要求1所述的密封装置，其特征在于，所述支承环(7)材料锁合地与减震器相连。
4.按照权利要求1所述的密封装置，其特征在于，所述垫圈(11)浮动地支承在减震器(3)的外周面和滚动管(1)的内周面之间，或者浮动地支承在减震器(3)的外周面和外管(2)的内周面之间。
5.按照权利要求1所述的密封装置，其特征在于，所述垫圈(11)由金属材料或聚合材料制成，并且垫圈(11)的与密封元件(10)相配的端面是磨平的。
6.按照权利要求1所述的密封装置，其特征在于，所述支承环(7)的用作为密封元件(10)支承面的端面是磨平的。
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