WO2014173005A1 - Anchor-shaped connector for oil seal - Google Patents

Anchor-shaped connector for oil seal Download PDF

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Publication number
WO2014173005A1
WO2014173005A1 PCT/CN2013/078320 CN2013078320W WO2014173005A1 WO 2014173005 A1 WO2014173005 A1 WO 2014173005A1 CN 2013078320 W CN2013078320 W CN 2013078320W WO 2014173005 A1 WO2014173005 A1 WO 2014173005A1
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WO
WIPO (PCT)
Prior art keywords
anchor
oil seal
interface
ring
embedded
Prior art date
Application number
PCT/CN2013/078320
Other languages
French (fr)
Chinese (zh)
Inventor
赵晶玮
张军
杨帆
Original Assignee
艾志（南京）环保管接技术股份有限公司
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Publication of WO2014173005A1 publication Critical patent/WO2014173005A1/en

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Classifications

    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3272—Mounting of sealing rings the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings

Definitions

  • the present invention relates to a seal for a rotating component or a reciprocating motion in a mechanical device, and more particularly to an interface form of an oil seal seal.
  • the conventional rotary oil seal or reciprocating hydraulic pneumatic seal has the overall annular closed structure.
  • the overall sealing performance of the structure is good, but it is difficult to install and disassemble. It is necessary to first remove other components on the rotating shaft outside the sealing cavity. It takes time and labor, and it may damage other parts of the equipment during replacement, which seriously affects the normal operation of machinery and the efficiency and quality of production.
  • a sealing structure of a split oil seal appears on the market, that is, there is a slit at one point of the oil seal ring structure, that is, a split port.
  • a split port Through this slit, the oil seal can be mounted directly to the shaft or removed from the shaft without interference from other components.
  • the split port may be a straight cut or other shape, however, the presence of the split port may result in a decrease in the sealability, operability and reliability of the device.
  • Chinese patent ZL200620132712.X discloses a "double-ring split bearing protector", in which an insert-type joint is used at the slit of the outer ring, the insert-type joint is provided by the insertion portion at one end of the outer ring and at the outer ring A groove-shaped receiving portion at one end that matches the shape of the insertion portion is formed, and the front end and the rear end of the insertion portion have a lateral dimension smaller than the intermediate portion.
  • the accommodating portion is first opened to both sides, so that after repeated insertion and removal, the elasticity of the accommodating portion cannot be restored.
  • the shape is such that a tight fit is not formed between the insertion portion and the accommodating portion, so that a gap occurs at the oil seal slit, resulting in a decrease in sealing property.
  • the object of the present invention is to provide a novel interface form of the oil seal, which can avoid looseness at the interface and ensure the sealing of the seal.
  • the present invention adopts the following technical solutions:
  • An oil seal anchor interface the interface being composed of an embedded portion and a groove matching the shape of the embedded portion; the embedded portion is an anchor shape, and an angle between the anchor hook and the anchor rod is less than 90 degrees.
  • the embedded portion may be integral, that is, the embedded portion is integral with the oil seal ring; or the embedded portion is split, which is a separate piece, and corresponding grooves are provided on the oil seal ring.
  • the material can be the same as the oil seal ring, or it can be different from the oil seal ring, using rubber, plastic or metal. A metal bead may also be provided on the periphery of the embedded portion.
  • the top of the anchor-shaped embedded portion is a sharp corner, the hook end of the anchor hook is an acute angle, and the root of the anchor hook may be a curved surface, a plane or a tooth surface.
  • the curve is a non-linear through curve or fold line in any direction. It is a 3D solid barb design, and its embedded part contains a groove design matching the shape of the anchor hook.
  • the barb inlay of the sealing interface adopts a self-locking design, that is, the hook end angle of the embedded portion is slightly larger than the matching hook end angle of the embedded groove, so that the inlay can be elastic under the action of the material.
  • the locking force is generated by itself, so that the anchor-shaped embedded portion is pressed forward with the embedded groove to realize the self-sealing of the cut end face.
  • the anchor hook inlaid connection can be used not only for the split slit connection of a single oil seal ring, but also for the mutual inlaid connection between two rings or multiple rings of a combined oil seal ring.
  • the insert portion and the recess may be provided in the axial direction or in the radial direction of the oil seal ring, or in the form of the interface in both directions. If it is applied to the mutual connection of two rings or a plurality of rings of a combined oil seal ring, the embedded portion may be formed as a complete ring or divided into several segments, and the embedded portion may be a ring groove. The groove is divided into several grooves.
  • the oil seal interface of the present invention adopts an embedded portion of an anchor tip angle, so that the embedded portion is permanently retracted along the circumference of the ring after being embedded in the groove. It does not come out, plays a role of reliable anchoring and permanent locking, avoids the looseness caused by repeated use, enhances the sealing at the interface, and reduces the requirement of material elasticity of the sealing device, and can be widely applied.
  • FIG. 1 is a view showing the interface structure of a first embodiment of the present invention, wherein (a) is a standard anchor hook design, and (b) is an anchor hook design of a toothed root.
  • Figure 2 is a block diagram showing the structure of a second embodiment of the present invention.
  • Fig. 3 is a view showing the interface distribution at the time of multi-ring connection in the third embodiment of the present invention.
  • Figure 4 is a schematic diagram of a 3D stereo interface.
  • Figure 5 is a block diagram showing the structure of an embodiment 4 of the present invention.
  • the interface 1 includes an insert block 2 and a groove matching the shape of the insert block.
  • the embedded block 2 is set to be anchor-shaped. When the embedded block 2 is embedded in the groove, it is fixed in the groove and can not be retracted along the circumferential direction of the ring, thereby ensuring the sealing of the oil seal.
  • the insert block 2 is located at one end of the oil seal ring 3, and the groove is located at the other end of the oil seal ring 3.
  • the anchor hook end 4 of the insert block 2 may be an acute angle, and the root of the anchor hook is also an acute angle (see (a) diagram).
  • the root of the anchor hook can be further designed in a zigzag pattern (see (b)).
  • the shape of the top of the anchor of the embedded block 2 is a sharp-angled arrow shape, and the embedded block 2 has a non-linear curve or a fold line in any direction, which is a 3D solid barb design.
  • the insert block 2 can also be split, as shown in Figure 2, as a separate piece that can be separately installed and removed from the oil seal ring 3. Corresponding two grooves are provided at both ends of the oil seal ring 3.
  • the insert block 2 and the groove in the above two embodiments may be located on the surface of the oil seal ring 3, inserted in the circumferential direction in use, or may be located on the side of the oil seal ring 3 (see Fig. 3), and when the oil seal is assembled, the block 2 will be embedded. Inserted in the circumferential direction.
  • the interfaces 1 on the single ring are arranged offset from each other along the circumference of the ring to increase the sealing property, as shown in Fig. 3.
  • the existing splitting ports are all straight-cut.
  • the interface 1 is a non-linear through curve or a fold line in any direction, and is a 3D three-dimensional anchor hook design, as shown in FIG. Improve the seal of the oil seal.
  • the insert block 2 may be disposed on the main ring 5 in several segments, and the embedded portion is divided into corresponding portions. A plurality of grooves are distributed on the auxiliary ring 6.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Abstract

An anchor-shaped connector (1) for an oil seal, the connector being comprised of an embedded portion and a groove matching the shape of the embedded portion; the embedded portion is anchor shaped, and the angle between the anchor hook and the anchor rod is less than 90 degrees. The connector of the present invention employs an anchor-shaped structure, such that an embedded piece (2) can never disengage in the circumferential direction of a ring after being embedded into the groove, thus performing reliable anchoring and permanent locking functions, avoiding connector looseness caused by repeated use, improving the sealing effect, reducing the material flexibility requirement of the split oil seal, and having wide applications.

Description

一种油封锚形接口  Oil seal anchor interface
技术领域 Technical field
本发明涉及机械设备中旋转部件用或者往复运动用的密封件，具体涉及油封 密封件的接口形式。  The present invention relates to a seal for a rotating component or a reciprocating motion in a mechanical device, and more particularly to an interface form of an oil seal seal.
背景技术 Background technique
现有普遍的旋转油封或往复液压气动密封圈的外形为整体环形闭合结构，该 结构整体密封性能好，但安装和拆卸较为困难， 必须要先拆除密封腔外旋转轴上 的其它部件， 这样不仅费时费工， 而且在更换时还有可能损害设备的其它部件， 严重影响机械设备的正常运转及生产的效率和质量。  The conventional rotary oil seal or reciprocating hydraulic pneumatic seal has the overall annular closed structure. The overall sealing performance of the structure is good, but it is difficult to install and disassemble. It is necessary to first remove other components on the rotating shaft outside the sealing cavity. It takes time and labor, and it may damage other parts of the equipment during replacement, which seriously affects the normal operation of machinery and the efficiency and quality of production.
目前市场上出现了剖分式油封的密封结构，即在油封圆环结构的某一处存在 切口， 即剖分口。 通过该切口， 可以将油封直接安装到轴上或者从轴上拆下， 而 不会受到其它零部件的干扰。 剖分口可以是平直的切口， 也可以是其它形状的， 然而， 剖分口的存在会使得装置的密封性、 操作性和可靠性有所下降。  At present, a sealing structure of a split oil seal appears on the market, that is, there is a slit at one point of the oil seal ring structure, that is, a split port. Through this slit, the oil seal can be mounted directly to the shaft or removed from the shaft without interference from other components. The split port may be a straight cut or other shape, however, the presence of the split port may result in a decrease in the sealability, operability and reliability of the device.
中国专利 ZL200620132712.X公开了一种 "双环剖分式轴承保护器"， 在外 环的切口处采用了嵌插式接头，该嵌插式接头由位于外环一端的插入部和位于外 环另一端的与插入部形状相匹配的凹槽形容置部构成，且插入部的前端和后端的 横向尺寸小于其中间部分。通过采用该嵌插式接头，可以提高整个轴承保护器的 结构整体性， 确保轴承保护器更可靠的工作。 但是， 这种嵌插式接头的插入部， 在进入和退出容置部时， 要先向两侧撑开容置部， 如此经过反复的拔插后， 会造 成容置部的弹性不能恢复原有形状， 使得插入部和容置部之间不能形成紧密配 合， 从而在油封切口处出现间隙， 导致密封性下降。  Chinese patent ZL200620132712.X discloses a "double-ring split bearing protector", in which an insert-type joint is used at the slit of the outer ring, the insert-type joint is provided by the insertion portion at one end of the outer ring and at the outer ring A groove-shaped receiving portion at one end that matches the shape of the insertion portion is formed, and the front end and the rear end of the insertion portion have a lateral dimension smaller than the intermediate portion. By using the insert connector, the structural integrity of the entire bearing protector can be improved, and the bearing protector can be operated more reliably. However, when the insertion portion of the insert type connector is inserted into and out of the accommodating portion, the accommodating portion is first opened to both sides, so that after repeated insertion and removal, the elasticity of the accommodating portion cannot be restored. The shape is such that a tight fit is not formed between the insertion portion and the accommodating portion, so that a gap occurs at the oil seal slit, resulting in a decrease in sealing property.
发明内容 Summary of the invention
本发明的目的是提供一种油封的新型接口形式， 能避免接口处出现松动， 保证密封件的密封性。  The object of the present invention is to provide a novel interface form of the oil seal, which can avoid looseness at the interface and ensure the sealing of the seal.
为实现上述目的， 本发明采用以下技术方案：  To achieve the above object, the present invention adopts the following technical solutions:
一种油封锚形接口， 接口处由嵌入部分和与嵌入部分形状相匹配的沟槽构 成； 所述嵌入部分为锚形， 锚钩与锚杆之间的夹角小于 90度。  An oil seal anchor interface, the interface being composed of an embedded portion and a groove matching the shape of the embedded portion; the embedded portion is an anchor shape, and an angle between the anchor hook and the anchor rod is less than 90 degrees.
嵌入部分可以为整体式的， 即嵌入部分与油封环是一体的； 或者嵌入部分为 分体式， 是单独独立的一块， 并在油封环上设置有相应的凹槽。独立嵌入部分其 材质可与油封环相同， 也可与油封环不同， 采用橡胶、 塑料或金属等。 嵌入部分 的外围还可以设有金属包边。 The embedded portion may be integral, that is, the embedded portion is integral with the oil seal ring; or the embedded portion is split, which is a separate piece, and corresponding grooves are provided on the oil seal ring. Independently embedded part The material can be the same as the oil seal ring, or it can be different from the oil seal ring, using rubber, plastic or metal. A metal bead may also be provided on the periphery of the embedded portion.
锚形嵌入部分的顶部为尖角， 所述锚钩的钩端为锐角， 锚钩根部可为弧面、 平面或齿面。 接口任意方向上都为非直线贯通的曲线或折线， 是 3D立体倒钩设 计， 并且其被嵌入部分含有与此锚钩设计形状相匹配的沟槽设计，两部分在任意 方向上分离或退出时都有反向作用力阻挡， 可靠锁定， 防止脱离， 并起到有效的 密封作用。  The top of the anchor-shaped embedded portion is a sharp corner, the hook end of the anchor hook is an acute angle, and the root of the anchor hook may be a curved surface, a plane or a tooth surface. The curve is a non-linear through curve or fold line in any direction. It is a 3D solid barb design, and its embedded part contains a groove design matching the shape of the anchor hook. When the two parts are separated or exited in any direction, It has a reverse force blocking, reliable locking, prevents detachment, and provides an effective sealing function.
进一步的技术方案，密封接口的倒钩镶嵌采用自锁紧设计， 即嵌入部分的钩 端角度略大于与之匹配的被嵌入沟槽的钩端角度，使其镶嵌后在材料的弹性作用 下能自行产生锁紧力， 使锚形嵌入部分向前与被嵌入沟槽贴紧， 实现剖切端面的 自行密封。  According to a further technical solution, the barb inlay of the sealing interface adopts a self-locking design, that is, the hook end angle of the embedded portion is slightly larger than the matching hook end angle of the embedded groove, so that the inlay can be elastic under the action of the material. The locking force is generated by itself, so that the anchor-shaped embedded portion is pressed forward with the embedded groove to realize the self-sealing of the cut end face.
其锚钩镶嵌连接不仅可用于单一油封环的剖分切口连接，也可以应用于一个 组合式油封环的两个环或多环之间的相互整体镶嵌连接。嵌入部分及凹槽可以设 置在油封环的轴向方向上或者径向方向上， 或者两个方向上都使用这种接口形 式。 如果其应用于一个组合式油封环的两个环或多个环之间的相互整体连接时， 其嵌入部分可以形成为一个整环或分为几段，其被嵌入部分可以为一个环型沟槽 或分为几段沟槽。  The anchor hook inlaid connection can be used not only for the split slit connection of a single oil seal ring, but also for the mutual inlaid connection between two rings or multiple rings of a combined oil seal ring. The insert portion and the recess may be provided in the axial direction or in the radial direction of the oil seal ring, or in the form of the interface in both directions. If it is applied to the mutual connection of two rings or a plurality of rings of a combined oil seal ring, the embedded portion may be formed as a complete ring or divided into several segments, and the embedded portion may be a ring groove. The groove is divided into several grooves.
相比现有技术中嵌入部的形状 （一般为圆形、 椭圆形或菱形）， 本发明的油 封接口采用锚形尖角的嵌入部分，使得嵌入部分在嵌入凹槽后沿环周向永久退不 出来， 起到了可靠锚固、 永久锁定的作用， 避免了反复使用带来的松动， 增强了 接口处的密封性， 并降低了密封装置对材质弹性的要求， 能够广泛的应用。 附图说明  Compared with the shape of the embedded portion in the prior art (generally circular, elliptical or rhombic), the oil seal interface of the present invention adopts an embedded portion of an anchor tip angle, so that the embedded portion is permanently retracted along the circumference of the ring after being embedded in the groove. It does not come out, plays a role of reliable anchoring and permanent locking, avoids the looseness caused by repeated use, enhances the sealing at the interface, and reduces the requirement of material elasticity of the sealing device, and can be widely applied. DRAWINGS
图 1是本发明实施例 1的接口结构图， 其中， （a)为标准锚钩设计， （b )为 齿状根部的锚钩设计。  BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the interface structure of a first embodiment of the present invention, wherein (a) is a standard anchor hook design, and (b) is an anchor hook design of a toothed root.
图 2是本发明实施例 2的接口结构图。  Figure 2 is a block diagram showing the structure of a second embodiment of the present invention.
图 3是本发明实施例 3的多环连接时的接口分布图。  Fig. 3 is a view showing the interface distribution at the time of multi-ring connection in the third embodiment of the present invention.
图 4是 3D立体接口示意图。  Figure 4 is a schematic diagram of a 3D stereo interface.
图 5是本发明实施例 4的接口结构图。  Figure 5 is a block diagram showing the structure of an embodiment 4 of the present invention.
具体实施方式 下面结合附图和实施例对本发明做进一步详细地说明。 detailed description The invention will now be described in further detail with reference to the drawings and embodiments.
以油封为例， 接口 1包括嵌入块 2和与嵌入块形状相匹配的凹槽。其中， 嵌 入块 2设为锚形的， 当嵌入块 2嵌入凹槽后， 便固定在凹槽中， 沿环的周向退不 出来， 保证了油封的密封性。  Taking the oil seal as an example, the interface 1 includes an insert block 2 and a groove matching the shape of the insert block. Wherein, the embedded block 2 is set to be anchor-shaped. When the embedded block 2 is embedded in the groove, it is fixed in the groove and can not be retracted along the circumferential direction of the ring, thereby ensuring the sealing of the oil seal.
实施例 1 Example 1
如图 1所示， 嵌入块 2位于油封环 3的一端， 凹槽位于油封环 3的另一端。 嵌入块 2的锚钩钩端 4可以为锐角， 锚钩根部也为锐角 （见 （a) 图）。 可以进一 步将锚钩根部采用锯齿状设计（见（b ) 图）。 其中， 嵌入块 2的锚形顶部的形状 为尖角的如箭头形， 嵌入块 2任意方向上都为非直线贯通的曲线或折线， 是 3D 立体倒钩设计。  As shown in Fig. 1, the insert block 2 is located at one end of the oil seal ring 3, and the groove is located at the other end of the oil seal ring 3. The anchor hook end 4 of the insert block 2 may be an acute angle, and the root of the anchor hook is also an acute angle (see (a) diagram). The root of the anchor hook can be further designed in a zigzag pattern (see (b)). The shape of the top of the anchor of the embedded block 2 is a sharp-angled arrow shape, and the embedded block 2 has a non-linear curve or a fold line in any direction, which is a 3D solid barb design.
实施例 2 Example 2
嵌入块 2还可以采用分体式的， 如图 2， 为独立的一块， 可以单独地从油封 环 3上安装和拆卸。 相应的两个凹槽设置在油封环 3的两端。  The insert block 2 can also be split, as shown in Figure 2, as a separate piece that can be separately installed and removed from the oil seal ring 3. Corresponding two grooves are provided at both ends of the oil seal ring 3.
实施例 3 Example 3
以上两个实施例中的嵌入块 2和凹槽可以位于油封环 3的表面，使用时沿周 向插入， 也可以位于油封环 3的侧面 （见图 3)， 装配油封时， 将嵌入块 2沿周 向插入。 多环连接时， 其单环上的接口 1彼此沿环的周向错开设置， 以增加密封 性， 见图 3。 现有剖分口都为直切式的， 本实施例接口 1的任意方向上都为非直 线贯通的曲线或折线， 是 3D立体锚钩设计， 如图 4中所示的凹凸结构， 能进一 步提高油封的密封性。  The insert block 2 and the groove in the above two embodiments may be located on the surface of the oil seal ring 3, inserted in the circumferential direction in use, or may be located on the side of the oil seal ring 3 (see Fig. 3), and when the oil seal is assembled, the block 2 will be embedded. Inserted in the circumferential direction. When the multi-ring is connected, the interfaces 1 on the single ring are arranged offset from each other along the circumference of the ring to increase the sealing property, as shown in Fig. 3. The existing splitting ports are all straight-cut. In the embodiment, the interface 1 is a non-linear through curve or a fold line in any direction, and is a 3D three-dimensional anchor hook design, as shown in FIG. Improve the seal of the oil seal.
实施例 4 Example 4
如图 5所示， 当两个油封环， 即主环 5与辅助环 6相互整体连接时， 其嵌入 块 2可以为分为几段设置在主环 5上，其被嵌入部分分为相应的几段沟槽分布在 辅助环 6上。  As shown in FIG. 5, when the two oil seal rings, that is, the main ring 5 and the auxiliary ring 6, are integrally connected to each other, the insert block 2 may be disposed on the main ring 5 in several segments, and the embedded portion is divided into corresponding portions. A plurality of grooves are distributed on the auxiliary ring 6.
另外， 还可以根据需要额外地设置对接口轴向泄漏方向的阻挡片。  In addition, it is also possible to additionally provide a blocking piece for the axial leakage direction of the interface as needed.
以上所述仅为本发明的优选方式， 并不构成对本发明保护范围的限定。任何 在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本 发明的权利要求保护范围之内。  The above description is only a preferred mode of the present invention and does not constitute a limitation of the scope of the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

权利 要 求 书 Claim
1. 一种油封锚形接口， 其特征在于， 接口处由嵌入部分和与嵌入部分形状相匹 配的沟槽构成； 所述嵌入部分为锚形， 锚钩与锚杆之间的夹角小于 90度。  An oil seal anchor interface, characterized in that the interface is composed of an embedded portion and a groove matching the shape of the embedded portion; the embedded portion is an anchor shape, and an angle between the anchor hook and the anchor is less than 90 degree.
2. 根据权利要求 1所述的一种油封锚形接口， 其特征在于， 所述嵌入部分与油 封环为一整体或独立于油封环， 嵌入部分与油封环采用相同或不同的材料。  2. An oil seal anchor interface according to claim 1, wherein the embedding portion is integral with or independent of the oil seal ring, and the embedding portion and the oil seal ring are of the same or different materials.
3. 根据权利要求 2所述的一种油封锚形接口， 其特征在于， 所述锚形嵌入部分 的顶部为尖角， 所述锚钩的钩端为锐角， 锚钩根部为弧面、 平面或齿面。 3. The oil seal anchor interface according to claim 2, wherein the top of the anchor-shaped insert portion is a sharp corner, the hook end of the anchor hook is an acute angle, and the root of the anchor hook is a curved surface and a plane Or tooth surface.
4. 根据权利要求 1、 2或 3所述的一种油封锚形接口， 其特征在于， 所述接口用 于单环式油封的剖分式结构， 或者用于多环组合式油封， 作为两个油封环之 间的连接方式。 4. The oil seal anchor interface according to claim 1, 2 or 3, wherein the interface is used for a split structure of a single ring oil seal, or for a multi-ring combined oil seal, as two The connection between the oil seal rings.
5. 根据权利要求 4所述的一种油封锚形接口， 其特征在于， 所述接口的截面路 径， 包括径向和轴向方向上都是曲折的； 所述接口设置在油封环的轴向方向 上或者径向方向上， 或者两个方向上都有。  The oil seal anchor interface according to claim 4, wherein the cross-sectional path of the interface includes a meandering in a radial direction and an axial direction; the interface is disposed in an axial direction of the oil seal ring In the direction or in the radial direction, or in both directions.
PCT/CN2013/078320 2013-04-22 2013-06-28 Anchor-shaped connector for oil seal WO2014173005A1 (en)

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CN201310137973.5A CN103195776B (en) 2013-04-22 2013-04-22 Anchor-shaped connector of oil seal

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CN2937623Y (en) * 2006-08-24 2007-08-22 艾志工业技术集团有限公司 Double-ring split bearing protector
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