WO2016015323A1 - 唇形密封件及其加热控制方法、控制电路 - Google Patents

唇形密封件及其加热控制方法、控制电路 Download PDF

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Publication number
WO2016015323A1
WO2016015323A1 PCT/CN2014/083504 CN2014083504W WO2016015323A1 WO 2016015323 A1 WO2016015323 A1 WO 2016015323A1 CN 2014083504 W CN2014083504 W CN 2014083504W WO 2016015323 A1 WO2016015323 A1 WO 2016015323A1
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WO
WIPO (PCT)
Prior art keywords
lip
temperature
lip seal
heating element
heating
Prior art date
Application number
PCT/CN2014/083504
Other languages
English (en)
French (fr)
Inventor
刘鑫
魏来
Original Assignee
舍弗勒技术股份两合公司
刘鑫
魏来
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 舍弗勒技术股份两合公司, 刘鑫, 魏来 filed Critical 舍弗勒技术股份两合公司
Priority to PCT/CN2014/083504 priority Critical patent/WO2016015323A1/zh
Publication of WO2016015323A1 publication Critical patent/WO2016015323A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

Definitions

  • a lip seal is a self-sealing contact seal that is widely used between relatively moving mechanical components.
  • a lip seal for a rotating shaft which is commonly referred to as an oil seal
  • the main reducer, the wheel side, etc. its function is to isolate the fluid medium chamber (the fluid medium here is usually oil) from the outside, to achieve the effect of internal sealing oil and external dustproof.
  • Figure 1 shows a cross-sectional structure of a lip seal A for a rotating shaft, which has a U-shaped cross section, in a radially outward direction, the lip seal has an annular sealing lip 1, a ring-shaped
  • the connecting arm 2 and the annular key portion 3, the connecting arm 2 and the key portion 3 constitute a base body, and the connecting arm 2 connects the sealing lip 1 and the key portion 3.
  • the material of the lip seal is rubber, and the skeleton 4 can be embedded in the rubber of the base body for reinforcing the support; the side of the sealing lip 1 facing the key portion 3 is coaxially connected with an annular spring 5 for the sealing lip 1 Provide preload. As shown in FIG.
  • the sealing lip 1 when mounted on the rotating shaft B, the sealing lip 1 closely surrounds the outer surface of the rotating shaft B under the preload of the spring 5, and isolates the fluid medium chamber a from the outside b to obtain a sealing effect.
  • the working pressure is the sum of the preload force and the fluid pressure.
  • the sealing lip 1 is opened and more closely fits the outer surface of the rotating shaft B, and the seal is sealed. The nature is further enhanced.
  • the rubber materials used to make the sealing lip include NBR (butyl nitrile rubber), HNBR (hydrogenated nitrile rubber), FKM (fluororubber), EPDM (ethylene propylene diene monomer), and ACM (acrylic rubber).
  • the rubber Under normal conditions, it can maintain good sealing performance, but when the temperature is lower than -40 °C, the rubber will harden and lose its elasticity. The seal is ineffective; if the temperature is further lowered below the glass transition temperature of the rubber (ie, the temperature at which the rubber changes from a highly elastic state to a glass state, above which the rubber exhibits elasticity; below this temperature, the rubber exhibits brittleness) When it comes, the rubber becomes very brittle and brittle and can be easily damaged. In addition, the rubber may stick to the rotating shaft at a low temperature, and when the rotating shaft is activated, the lip seal is torn and damaged.
  • the glass transition temperature of the rubber ie, the temperature at which the rubber changes from a highly elastic state to a glass state, above which the rubber exhibits elasticity; below this temperature, the rubber exhibits brittleness
  • the present invention provides a lip seal comprising an annular base body and an annular sealing lip connected to the base body, the sealing lip being disposed coaxially with the base body; further comprising a heating device, the heating device There is a heating element that can generate thermal energy in an energized state, the heating element being in contact with at least one of the sealing lip and the substrate.
  • the heating element is a resistance wire, and the resistance wire is embedded in the sealing lip.
  • the resistance wire is spiral and surrounds the sealing lip in a circumferential direction.
  • the heating element is an electric heating layer, the electric heating layer is in contact with the sealing lip, or the electric heating layer is in contact with the base body and is close to the sealing lip.
  • the heating device further includes a thermostat, the thermostat being electrically connected to the heating element for controlling energization or de-energization of the heating element.
  • the thermostat includes a temperature control switch and a temperature sensor electrically connected to the heating element, and the temperature sensor is embedded in the sealing lip.
  • the heating device further includes a temperature display, and the temperature display is electrically connected to the temperature sensor for displaying a real-time temperature measured by the temperature sensor.
  • the present invention also provides a heating control method for a lip seal, providing a lip seal and a heating element in contact with the lip seal; when the temperature of the lip seal is less than a minimum operating temperature, the heating is initiated The component operates and heats the lip seal; when the temperature of the lip seal is greater than the maximum operating temperature, the heating element is controlled to cease operation.
  • the invention also provides a control circuit for a lip seal, comprising a first circuit comprising a heating element, a temperature sensor, a temperature control switch and a power source, the heating element and the temperature sensor both sealing with the lip seal a second circuit comprising a temperature display, the temperature sensor and the power source; the first circuit is connected in parallel with the second circuit.
  • FIG. 1 is a schematic cross-sectional view of a lip seal of the prior art
  • FIG. 2 is a schematic view of the assembly of a lip seal and a rotating shaft in the prior art
  • FIG. 3 is a lip seal of the first embodiment of the present invention.
  • Figure 4 is a schematic circuit diagram of a heating device in a lip seal according to an embodiment of the present invention
  • Figure 5 is a flow chart showing the operation of a heating device in a lip seal according to an embodiment of the present invention
  • Figure 6 is a cross-sectional view showing the lip seal of the second embodiment of the present invention.
  • Embodiment 1 Referring to Figure 3, the present embodiment provides a lip seal 10 comprising an annular sealing lip 11, an annular connecting arm 12 and an annular key portion 13, the annular connecting arm 12 and the annular key portion 13
  • An annular base body the sealing lip 11 is disposed coaxially with the base body, the annular connecting arm 12 is axially located between the sealing lip 11 and the key portion 13 and connects the sealing lip 11 and the key portion 13, ie the sealing lip 11 and the base body are on the shaft
  • a skeleton 14 may be provided inside the base for reinforcing the strength of the base.
  • a coil spring 15 is coaxially connected to the inner circumference of the sealing lip 11.
  • the lip seal 10 of the present embodiment further includes a heating device having a heating element 16 that can generate thermal energy in an energized state, the heating element 16 being in contact with at least one of the sealing lip 11 and the substrate for achieving temperature conditions At the preset value, the sealing lip 11 is subjected to a heat of the mouth.
  • the heating element 16 is a resistance wire and is embedded in the sealing lip 11. Specifically, without affecting the working performance of the sealing lip 11, the position of the electric resistance wire should be as close as possible to the contact portion of the sealing lip 11 with the rotating shaft (see FIG.
  • the heating apparatus further includes a thermostat electrically coupled to the heating element 16 for controlling energization or de-energization of the heating element 16.
  • the thermostat includes a temperature control switch 18 electrically connected to the heating element 16, and a temperature sensor 17 electrically connected to the heating element 16, the temperature sensor 17 being embedded in the sealing lip 11, and the position of the temperature control switch 18 can be set in the seal
  • the lip 11 can also be disposed at other positions, and the position of the temperature control switch 18 can be selected according to the size of the sealing lip 11 to select a specific setting position. Similar to the setting of the resistance wire, the temperature sensor 17 should be placed as close as possible to the contact point of the sealing lip 11 (see Fig. 2) to obtain the most accurate temperature information without affecting the working performance of the sealing lip 11.
  • the heating device further includes a temperature display 19, which is electrically connected to the temperature sensor 17, for displaying the real-time temperature measured by the temperature sensor 17, and facilitating the user to monitor the real-time temperature of the sealing lip 11.
  • the heating element 16 and the temperature display 19 are all powered by a power source 20, which may be an internal power source that is provided by the heating device, or may use other power sources on the device (such as a train).
  • the temperature display 19 has two functions. On the one hand, the user can know the actual temperature at which the sealing lip 11 is located by the temperature displayed on the temperature display 19, thereby determining whether the device can be activated; on the other hand, the lip seal 10 has friction and friction between the working and the rotating shaft.
  • the released heat may cause the sealing lip 11 to be at a higher temperature than the maximum operating temperature of the lip seal 10.
  • the user can obtain the temperature information according to the display of the temperature display 19, and take appropriate measures in advance. , to avoid damage to the lip seal 10.
  • the operating principle of the heating device of this embodiment is as follows:
  • the temperature sensor 17 monitors the temperature of the sealing lip 11 in real time, and the detected temperature information is transmitted through the two circuit loops.
  • a circuit loop transmits temperature information to the temperature display 19 and displays it to the user via the temperature display 19, which is defined as loop one, and the loop is always guided
  • the temperature display 19 is always in operation.
  • Another circuit loop passes temperature information to the temperature control switch 18, which is defined as loop two.
  • a temperature range Tmin-Tmax is preset in the temperature control switch 18. When the temperature is within the temperature range, the temperature control switch 18 is turned off, and vice versa.
  • the temperature range of the temperature control switch 18 is the same as the temperature range in which the lip seal 10 can operate normally, where Tmin is the lowest operating temperature and Tmax is the highest operating temperature. Defining that the temperature detected by the temperature sensor 17 is T, when T ⁇ Tmin, the temperature control switch 18 is closed, the circuit 2 is turned on, the heating element 16 is operated, and the sealing lip 11 is heated to prevent it from failing due to temperature overshoot; At 1 13 ⁇ 4 ⁇ , the temperature control switch 18 is opened, the circuit 2 is disconnected, and the heating element 16 is stopped to prevent it from melting and failing due to excessive temperature.
  • Embodiments of the present invention also provide a heating control method for a lip seal, as shown in FIG. 5, including the above-described lip seal 10, or providing any lip seal and heating in contact with the lip seal element.
  • the heating control method is: when the temperature of the lip seal 10 is less than the minimum operating temperature, the heating element 16 is activated to operate and the lip seal 10 is heated; when the temperature of the lip seal 10 is greater than the highest At the operating temperature, the heating element 16 is controlled to stop working.
  • Embodiments of the present invention also provide a control circuit for a lip seal, as in FIG.
  • the control circuit has a first loop and a second loop.
  • the first circuit includes a heating element 16, the temperature control switch 18, the temperature sensor 17, and the power source, the components forming a series circuit, wherein the heating element 16 and the temperature sensor 17 are in contact with the lip seal;
  • the circuit includes the temperature display 19, the temperature sensor 17, and the power source, and the above components constitute another series circuit.
  • the first loop and the second loop are connected in parallel.
  • the second embodiment differs from the first embodiment in that, in this embodiment, referring to FIG. 6, the heating element 16 is an electric heating layer, and the electric heating layer is in contact with the base body and close to the sealing lip 11, wherein the electric heating layer is attached to the base body.
  • the electric heating layer may be embedded in the base body or attached to the surface of the base body, or, under the premise of not affecting the working performance of the sealing lip, the electric heating layer is placed in contact with the sealing lip, and the electric heating layer is buried in the sealing lip. Or attached to the surface of the sealing lip.
  • the applicable environment of the lip seal 10 can be enlarged, for example, when the lip seal is at an ambient temperature lower than -60 ° C, the lip shape can be The seal 10 is heated to achieve the purpose of preventing the lip seal 10 from failing due to low temperatures.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

一种唇形密封件及其加热控制方法、控制电路,其中唇形密封件包括环形的基体和环形的密封唇,密封唇与基体同轴设置、且在轴向的一端相互连接;还包括加热装置,加热装置具有在通电状态下可以产生热能的加热元件,加热元件与密封唇和基体中的至少一个接触。加热元件在极端低温的情况下可以对唇形密封件进行加热,防止其失效。

Description

唇形密封件及其加热控制方法、 控制电路 技术领域 本发明涉及一种唇形密封件及其加热控制方法、 控制电路。 背景技术 唇形密封件是一种具有自封作用的接触密封件,被广泛地用于相 对运动的机械元件之间。 以用于旋转轴的唇形密封件为例, 这种唇形密封件通常称为油 封, 广泛应用于工程机械的变速箱、 驱动桥等部件中, 如变速箱的前 后输出轴,驱动桥的主减速器、轮边等处,其作用是把流体介质腔(这 里的流体介质通常为油)和外界隔离, 实现对内封油, 对外防尘的效 果。 图 1示出了一种用于旋转轴的唇形密封件 A的横截面结构, 其 横截面呈 U形,沿径向向外的方向,唇形密封件具有环形的密封唇 1、 环形的连接臂 2和环形的键部 3, 连接臂 2和键部 3构成一个基体, 连接臂 2连接密封唇 1和键部 3。 唇形密封件的材质为橡胶, 基体的 橡胶中可以埋设骨架 4, 用于加强支撑; 密封唇 1朝向键部 3的一侧 同轴连接有一环形的弹簧 5, 弹簧 5用于给密封唇 1提供预紧力。 如图 2, 当安装于旋转轴 B上时, 密封唇 1在弹簧 5预紧力的作 用下紧贴地包围在旋转轴 B的外表面,将流体介质腔 a和外界 b隔离 而获得密封效果。 唇形密封件 A工作时, 其工作压力为预紧力与流 体压力之和, 当流体介质的压力增大时, 密封唇 1被撑开并更加紧密 地与旋转轴 B外表面贴合, 密封性进一步增强。 用于制造密封唇的橡胶材料包括 NBR (丁晴橡胶)、 HNBR (氢 化丁晴橡胶)、 FKM (氟橡胶)、 EPDM (三元乙丙橡胶) 以及 ACM (丙烯酸酯橡胶 )等, 这些橡胶材料在通常情况下能保持良好的密封 性能, 但当温度低于 -40°C的时候, 橡胶会出现硬化而失去弹性, 导 致密封失效; 如果温度进一步降低至低于橡胶的玻璃化温度(即橡胶 由高弹态转变为玻璃态的温度, 在此温度以上, 橡胶表现出弹性; 在 此温度以下, 橡胶表现出脆性)时, 橡胶会变得非常脆且易碎, 极易 被损坏。 另外, 低温时橡胶有可能会粘在旋转轴上, 此时当旋转轴启 动的时候, 唇形密封件就会被撕裂而损坏。 在实际应用中, 尤其在轨道交通领域的应用中, 列车有时需要运 行在极端低温地带, 例如中国东北部区域或者西北部的高原地带, 这 些地区在某些时段的温度甚至可以降至 -60°C, 任何密封件在这种情 况下都将失效。 因此,亟需提供一种在极端低温环境下能够保持良好密封性能的 唇形密封件。 发明内容 本发明解决的问题是现有技术的唇形密封件不能在极端低温的 环境下工作。 为解决上述问题, 本发明提供一种唇形密封件, 包括环形的基体 和与基体连接的环形的密封唇, 所述密封唇与所述基体同轴设置; 还 包括加热装置,所述加热装置具有在通电状态下可以产生热能的加热 元件, 所述加热元件与所述密封唇和所述基体中的至少一个接触。 可选的, 所述加热元件为电阻丝, 所述电阻丝埋设于所述密封唇 内。 可选的, 所述电阻丝为螺旋形并在周向上围绕所述密封唇。 可选的,所述加热元件为电热层,所述电热层与所述密封唇接触, 或者所述电热层与所述基体接触且靠近所述密封唇。 可选的,所述电热层埋设于所述基体内或者贴设于所述基体的表 可选的, 所述加热装置还包括温控器, 所述温控器与所述加热元 件电连接, 用于控制加热元件的通电或断电。 可选的,所述温控器包括与所述加热元件电连接的温控开关和温 度传感器, 所述温度传感器埋设于所述密封唇内。 可选的, 所述加热装置还包括温度显示器, 所述温度显示器与所 述温度传感器电连接, 用于显示温度传感器所测量的实时温度。 本发明还提供一种用于唇形密封件的加热控制方法,提供唇形密 封件及与唇形密封件接触的加热元件; 当唇形密封件的温度小于最低 工作温度时,启动所述加热元件工作、并对所述唇形密封件进行加热; 当唇形密封件的温度大于最高工作温度时,控制所述加热元件停止工 作。 本发明还提供一种用于唇形密封件的控制电路, 包括第一回路, 包括加热元件、 温度传感器、 温控开关及电源, 所述加热元件和所述 温度传感器均与所述唇形密封件接触; 第二回路, 包括温度显示器、 所述温度传感器及所述电源; 所述第一回路与所述第二回路并联。 与现有技术相比, 本发明的技术方案具有以下优点: 传统的唇形密封件上设置加热装置,在极端低温的情况下可以对 唇形密封件进行加热, 防止其失效。 附图说明 图 1是现有技术中唇形密封件的横截面示意图; 图 2是现有技术中唇形密封件与旋转轴的装配示意图; 图 3是本发明实施例一中唇形密封件的横截面示意图; 图 4是本发明实施例一唇形密封件中加热装置的电路简图; 图 5是本发明实施例一唇形密封件中加热装置的工作流程图; 图 6是本发明实施例二中唇形密封件的横截面示意图。 具体实施方式 为使本发明的上述目的、特征和优点能够更为明显易懂, 下面结 合附图对本发明的具体实施例做详细的说明。 实施例一 参照图 3, 本实施例提供一种唇形密封件 10, 包括环形的密封唇 11、 环形的连接臂 12和环形的键部 13, 环形的连接臂 12与环形的 键部 13组成一个环形的基体, 密封唇 11与基体同轴设置, 环形连接 臂 12在轴向上位于密封唇 11和键部 13之间并连接密封唇 11和键部 13, 即密封唇 11和基体在轴向的一端相互连接。 基体的内部可以设 置一骨架 14, 用于加强基体的强度。 密封唇 11的内周上同轴连接有 一螺旋弹簧 15, 当唇形密封件 10套设于旋转轴上(未图示) 时, 螺 旋弹簧 15提供一个张紧力, 将密封唇 11压设在旋转轴上。 本实施例的唇形密封件 10还包括加热装置, 加热装置具有在通 电状态下可以产生热能的加热元件 16, 加热元件 16与密封唇 11和 基体中的至少一个接触, 用于在温度条件达到预设值时对密封唇 11 进行力口热。 本实施例中, 加热元件 16为电阻丝, 埋设于密封唇 11内。 具体 的, 在不影响密封唇 11工作性能的前提下, 电阻丝的位置应当尽量 靠近密封唇 11与旋转轴 (参见图 2 )接触的部位, 使得密封唇 11与 旋转轴接触的部位能够以最快的速度被加热至合适的工作温度,缩短 力口热时间。 电阻丝的形状可以根据需要选择, 例如可以为环形或螺旋形。 本 实施例中的电阻丝为螺旋形并在周向上围绕密封唇 11, 可以想象成 电阻丝像螺旋弹簧一样围绕在密封唇 11内, 以对密封唇 11进行比较 均匀地加热。 参照图 3并结合图 4, 加热装置还包括温控器, 温控器与加热元 件 16电连接, 用于控制加热元件 16的通电或断电。 温控器包括与加 热元件 16电连接的温控开关 18, 以及与加热元件 16电连接的温度 传感器 17, 温度传感器 17埋设于所述密封唇 11内, 温控开关 18的 位置可以设置在密封唇 11内, 也可以设置在其他位置, 温控开关 18 的位置可以根据密封唇 11的尺寸来选择具体的设置位置。 与电阻丝 的设置相似, 在不影响密封唇 11工作性能的前提下, 温度传感器 17 的位置应当尽量靠近密封唇 11 与旋转轴(参见图 2 )接触的部位, 以获取最准确的温度信息。 另外, 加热装置还包括温度显示器 19, 温度显示器 19与温度传 感器 17电连接, 用于显示温度传感器 17所测量的实时温度、 方便用 户对密封唇 11的实时温度进行监控。 其中, 加热元件 16、 温度显示器 19均通过一电源 20供电, 电 源 20可以是加热装置自带的内部电源, 也可以利用设备(例如列车) 上的其他电源。 温度显示器 19有两方面的作用。 一方面, 用户可以通过温度显 示器 19上显示的温度知晓密封唇 11所处的实际温度,从而决定是否 可以启动设备; 另一方面, 唇形密封件 10工作时与旋转轴之间存在 摩擦, 摩擦释放的热量有可能会使得密封唇 11所处的温度高于唇形 密封件 10的最高工作温度,此时用户可以根据温度显示器 19的显示 来及时得到该温度信息, 并提前釆取合适的手段, 避免唇形密封件 10的损坏。 参照图 4-5, 本实施例加热装置的工作原理如下: 温度传感器 17实时监测密封唇 11的温度,其检测到的温度信息 通过两条电路回路传递出去。 一条电路回路将温度信息传递给温度显示器 19, 并通过温度显 示器 19向用户显示出来, 该电路回路定义为回路一, 回路一始终导 通, 温度显示器 19一直处于工作状态。 另一条电路回路将温度信息传递给温控开关 18, 该电路回路定 义为回路二。 其中温控开关 18 中预先设定好一个温度范围 Tmin-Tmax, 温度处于该温度范围内时, 温控开关 18断开, 反之闭 合。温控开关 18的温度范围与唇形密封件 10可以正常工作的温度范 围相同, 其中 Tmin为最低工作温度, Tmax为最高工作温度。 定义温度传感器 17检测到的温度为 T, 当 T<Tmin时, 温控开 关 18闭合, 回路二导通, 则加热元件 16工作, 密封唇 11被加热, 防止其由于温度过氏而失效; 当 1 1¾^ 时, 温控开关 18断开, 回 路二断开, 加热元件 16停止工作, 防止其由于温度过高而融化、 失 效, 此时, 可以启动唇形密封件 10进行工作。 可见, 加热元件 16只在需要的情况下工作, 以保持唇形密封件 10处于正常工作状态。 本发明实施例还提供一种用于唇形密封件的加热控制方法,如图 5, 包括上述唇形密封件 10, 或者提供任意一种唇形密封件以及与该 唇形密封件接触的加热元件。 该加热控制方法为: 当唇形密封件 10 的温度小于最低工作温度时, 启动所述加热元件 16工作、 并对所述 唇形密封件 10进行加热; 当唇形密封件 10的温度大于最高工作温度 时, 控制所述加热元件 16停止工作。 本发明实施例还提供一种用于唇形密封件的控制电路, 如图 4, 包括上述唇形密封件 10, 或者提供任意一种唇形密封件以及与该唇 形密封件接触的加热元件, 该控制电路具有第一回路和第二回路。 第 一回路包括加热元件 16、 所述温控开关 18、 所述温度传感器 17和所 述电源, 上述元件组成一个串联回路, 其中加热元件 16和温度传感 器 17均与唇形密封件接触; 第二回路包括所述温度显示器 19、 所述 温度传感器 17和所述电源, 上述元件组成另一个串联回路。 第一回 路和第二回路并联。 实施例二 本实施例与实施例一的区别在于, 本实施例中, 参照图 6, 加热 元件 16为电热层, 电热层与基体接触且靠近密封唇 11, 其中, 电热 层贴设于基体的表面。 电热层的面积较大, 可以较好地将热量传递给 密封唇 11。 本实施例中加热装置的电路布置以及工作流程均与实施例一相 同, 在此不再赘述。 在其他实施例中,电热层可以埋设于基体内或者贴设于基体的表 面, 或者, 在不影响密封唇工作性能的前提下, 设置电热层与密封唇 接触, 并将电热层埋设于密封唇内或者贴设于密封唇的表面。 综上, 通过在唇形密封件 10中设置加热装置, 可以扩大唇形密 封件 10的适用环境, 例如当唇形密封件处于外界环境温度低于 -60 °C 的时候, 可以通过对唇形密封件 10进行加热, 来达到防止唇形密封 件 10由于低温而失效的目的。 虽然本发明披露如上, 但本发明并非限定于此。任何本领域技术 人员, 在不脱离本发明的精神和范围内, 均可作各种更动与修改, 因 此本发明的保护范围应当以权利要求所限定的范围为准。

Claims

权 利 要 求
1. 一种唇形密封件, 包括环形的基体和与基体连接的环形的密封唇, 所述密封唇与所述基体同轴设置; 其特征在于, 还包括加热装置, 所述加热装置具有在通电状态下 可以产生热能的加热元件,所述加热元件与所述密封唇和所述基体中 的至少一个接触。
2. 如权利要求 1 所述的唇形密封件, 其特征在于, 所述加热元件为 电阻丝, 所述电阻丝埋设于所述密封唇内。
3. 如权利要求 2所述的唇形密封件, 其特征在于, 所述电阻丝为螺 旋形并在周向上围绕所述密封唇。
4. 如权利要求 1 所述的唇形密封件, 其特征在于, 所述加热元件为 电热层, 所述电热层与所述密封唇接触, 或者所述电热层与所述 基体接触且靠近所述密封唇。
5. 如权利要求 4所述的唇形密封件, 其特征在于, 所述电热层埋设 于所述基体内或者贴设于所述基体的表面。
6. 如权利要求 1-5任一项所述的唇形密封件,其特征在于, 所述加热 装置还包括温控器, 所述温控器与所述加热元件电连接, 用于控 制加热元件的通电或断电。
7. 如权利要求 6所述的唇形密封件, 其特征在于, 所述温控器包括 与所述加热元件电连接的温控开关和温度传感器, 所述温度传感 器埋设于所述密封唇内。
8. 如权利要求 7所述的唇形密封件, 其特征在于, 所述加热装置还 包括温度显示器, 所述温度显示器与所述温度传感器电连接, 用 于显示温度传感器所测量的实时温度。
9. 一种用于唇形密封件的加热控制方法, 其特征在于, 提供唇形密 封件及与唇形密封件接触的加热元件; 当唇形密封件的温度小于最低工作温度时,启动所述加热元件工 作、 并对所述唇形密封件进行加热; 当唇形密封件的温度大于最高工 作温度时, 控制所述加热元件停止工作。
10.—种用于唇形密封件的控制电路, 其特征在于, 包括: 第一回路, 包括加热元件、 温度传感器、 温控开关及电源, 所述 加热元件和所述温度传感器均与所述唇形密封件接触; 第二回路, 包括温度显示器、 所述温度传感器及所述电源; 所述第一回路与所述第二回路并联。
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DE102017123654B4 (de) 2017-10-11 2022-01-27 Schaeffler Technologies AG & Co. KG Temperierbare Dichtungsanordnung und Temperierelement für diese
DE102017123653B4 (de) 2017-10-11 2022-04-28 Schaeffler Technologies AG & Co. KG Temperierbares Dichtungselement und Dichtungsanordnung mit diesem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360207A (en) * 1979-05-31 1982-11-23 Bbc Brown, Boveri & Company, Limited Heater for sliding seal structure
CN102142735A (zh) * 2009-12-21 2011-08-03 住友重机械工业株式会社 冷冻库用齿轮电动机
CN202149220U (zh) * 2011-07-04 2012-02-22 江门市鑫辉密封科技有限公司 一种高耐温耐磨的油封
CN103261758A (zh) * 2010-12-14 2013-08-21 谢夫勒科技股份两合公司 密封装置和具有密封装置的旋转轴承

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360207A (en) * 1979-05-31 1982-11-23 Bbc Brown, Boveri & Company, Limited Heater for sliding seal structure
CN102142735A (zh) * 2009-12-21 2011-08-03 住友重机械工业株式会社 冷冻库用齿轮电动机
CN103261758A (zh) * 2010-12-14 2013-08-21 谢夫勒科技股份两合公司 密封装置和具有密封装置的旋转轴承
CN202149220U (zh) * 2011-07-04 2012-02-22 江门市鑫辉密封科技有限公司 一种高耐温耐磨的油封

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017123654B4 (de) 2017-10-11 2022-01-27 Schaeffler Technologies AG & Co. KG Temperierbare Dichtungsanordnung und Temperierelement für diese
DE102017123653B4 (de) 2017-10-11 2022-04-28 Schaeffler Technologies AG & Co. KG Temperierbares Dichtungselement und Dichtungsanordnung mit diesem

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