WO1997037160A1 - Sealing means - Google Patents

Sealing means Download PDF

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Publication number
WO1997037160A1
WO1997037160A1 PCT/CN1997/000025 CN9700025W WO9737160A1 WO 1997037160 A1 WO1997037160 A1 WO 1997037160A1 CN 9700025 W CN9700025 W CN 9700025W WO 9737160 A1 WO9737160 A1 WO 9737160A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
fluid
sealing device
honeycomb
present
Prior art date
Application number
PCT/CN1997/000025
Other languages
French (fr)
Chinese (zh)
Inventor
Xiaoying Yun
Original Assignee
Xiaoying Yun
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 Xiaoying Yun filed Critical Xiaoying Yun
Priority to AU21484/97A priority Critical patent/AU2148497A/en
Publication of WO1997037160A1 publication Critical patent/WO1997037160A1/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
    • F16J15/44—Free-space packings
    • F16J15/444—Free-space packings with facing materials having honeycomb-like structure

Definitions

  • the invention relates to a sealing device, in particular to a dynamic sealing device.
  • An object of the present invention is to provide a sealing device, which has a simple structure and can achieve a good sealing effect.
  • the sealing device provided by the present invention includes two sealing surfaces with relatively reasonable gaps.
  • at least one cover is provided with small W pits, and each pit forms a honeycomb structure.
  • the fluid in the pit forms a vortex and blocks the leakage of the fluid to achieve sealing.
  • the dimples are semi-circular dimples.
  • honeycomb-shaped depressions are formed on both sealing surfaces.
  • the honeycomb-shaped pits on the two sealing surfaces are staggered. Beneficial effect
  • the sealing device of the present invention adopts a structure in which honeycomb-shaped recesses are provided on two sealing surfaces with relatively reasonable gaps, the structure is not only simple and convenient to process, thereby reducing the cost of the sealing device, but also achieving a good sealing effect.
  • FIG. 1 is a schematic structural view of a sealing device of the present invention
  • FIG. 2 is a schematic structural diagram of a honeycomb-shaped recess on a sealing surface of a sealing device of the present invention. Preferred embodiment for realizing the invention
  • FIG. 1 shows a schematic diagram of a sealing device according to an embodiment of the sealing device of the present invention.
  • the sealing device of this embodiment of the present invention includes two sealing surfaces 2 and 3 with relatively reasonable gaps, and honeycomb-shaped recesses 1 are formed on the two sealing surfaces, respectively, as shown in FIG. 2.
  • the small pits on each sealing surface can be reasonably arranged according to the area of the sealing band formed between the two sealing surfaces.
  • the size can be specifically selected according to the actual application.
  • Each pit is preferably a semi-circular pit.
  • Honeycomb dense cloth The small pits can be processed and formed in a variety of ways, such as by casting or drilling.
  • the working principle of the sealing device of the present invention is as follows. Under the effect of fluid pressure or when the two sealing surfaces move relative to each other, the fluid stored in the small pits rotates at a certain speed, so that high-speed vortices are formed in the small pits to block the leakage of the fluid, thereby achieving sealing. Its ability to block leaks is directly proportional to the pressure of the fluid and the relative speed of the two sealing surfaces.
  • the small pits on the two sealing surfaces are preferably staggered, so as to ensure greater turbulence and achieve a better sealing effect.
  • honeycomb-shaped pits are formed on both sealing surfaces of the sealing device.
  • a small honeycomb pit is formed on only one sealing surface, and the other sealing surface is a smooth surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses a sealing means including two properly spaced sealing faces. A plurality of holes are provided in the honeycomb-form on at least one of the sealing faces, so that under the action of fluid pressure or when the sealing faces move relatively to each other, the fluid in the holes forms whirl, which prevents the fluid from leakage and the sealing is achieved.

Description

一种密封装置 所属技术领域  Sealing device
本发明涉及一种密封装置， 特别是一种动密封装置。 背景技术  The invention relates to a sealing device, in particular to a dynamic sealing device. Background technique
传统的密封方式大都结构复杂， 因此导致密封装置制造成本的增加， 而 且因密封性能欠佳而不可避免地造成泄漏， 且在长期使用后密封性能进一步 劣化而不能满足使用要求， 发明目的  Most of the traditional sealing methods have complicated structures, which leads to an increase in the manufacturing cost of the sealing device. Leakage is unavoidable due to poor sealing performance, and the sealing performance is further deteriorated after long-term use, which cannot meet the requirements for use.
本发明的目的是提供一种密封装置， 该密封装置结构简单， 且可达到良 好的密封效果。 技术方案  An object of the present invention is to provide a sealing device, which has a simple structure and can achieve a good sealing effect. Technical solutions
为实现上述目的， 本发明提供的密封装置包括两个具有相对合理间隙的 密封面， 其中， 至少一个封面上分布有小 W坑， 各凹坑形成蜂窝状结构， 在 流体压力作用下或两个密封面产生相对运动时， 凹坑内的流体形成旋涡而对 流体的泄漏形成阻隔从而实现密封。  In order to achieve the above object, the sealing device provided by the present invention includes two sealing surfaces with relatively reasonable gaps. Among them, at least one cover is provided with small W pits, and each pit forms a honeycomb structure. When relative motion occurs on the sealing surface, the fluid in the pit forms a vortex and blocks the leakage of the fluid to achieve sealing.
根据本发明一个方面， 所述凹坑为半圆形凹坑。  According to an aspect of the present invention, the dimples are semi-circular dimples.
根据本发明另一方面， 两个密封面上均形成有蜂窝状凹坑。  According to another aspect of the present invention, honeycomb-shaped depressions are formed on both sealing surfaces.
根据本发明再一方面， 两个密封面上的蜂窝状凹坑交错排列。 有益效果  According to another aspect of the present invention, the honeycomb-shaped pits on the two sealing surfaces are staggered. Beneficial effect
由于本发明密封装置采用在两个具有相对合理间隙的密封面上设置蜂 窝状凹坑的结构， 因此， 不仅结构简单加工方便， 从而降低密封装置的成本， 而且能够实现良好的密封效果。  Since the sealing device of the present invention adopts a structure in which honeycomb-shaped recesses are provided on two sealing surfaces with relatively reasonable gaps, the structure is not only simple and convenient to process, thereby reducing the cost of the sealing device, but also achieving a good sealing effect.
下面结合附图和实施例对本发明作进一步详细的说明， 其中 图面说明  The present invention will be further described in detail with reference to the accompanying drawings and embodiments, in which the drawings illustrate
图 1为本发明密封装置的结构示意图; 图 2为本发明密封装置的密封面上的蜂窝状凹坑的结构示意图。 实现发明的优选实施例 Figure 1 is a schematic structural view of a sealing device of the present invention; FIG. 2 is a schematic structural diagram of a honeycomb-shaped recess on a sealing surface of a sealing device of the present invention. Preferred embodiment for realizing the invention
图】所示为本发明密封装置一实施例的结枸示意图。 如图 1所示， 本发 明该实施例密封装置包括两个具有相对合理间隙的密封面 2和 3 , 两密封面 上分别形成有蜂窝状凹坑 1 , 如图 2所示。  Figure] shows a schematic diagram of a sealing device according to an embodiment of the sealing device of the present invention. As shown in FIG. 1, the sealing device of this embodiment of the present invention includes two sealing surfaces 2 and 3 with relatively reasonable gaps, and honeycomb-shaped recesses 1 are formed on the two sealing surfaces, respectively, as shown in FIG. 2.
各密封面上的小凹坑可根据两密封面间形成的密封带的面积合理排 布， 其大小可根据实际应用情况具体选定， 各凹坑最好为半圓形小坑. 蜂窝 状密布的小坑可采用多种方式加工成形， 比如采用铸造成形的方式或钻削成 形的方式。  The small pits on each sealing surface can be reasonably arranged according to the area of the sealing band formed between the two sealing surfaces. The size can be specifically selected according to the actual application. Each pit is preferably a semi-circular pit. Honeycomb dense cloth The small pits can be processed and formed in a variety of ways, such as by casting or drilling.
本发明密封装置的工作原理如下。 在流体压力作用下或当两密封面产生 相对运动时， 储在各小凹坑内的流体以一定速度旋转， 以致小坑内形成高速 的旋涡而对流体的泄漏形成阻隔， 从而实现密封。 其阻隔泄漏的能力与流体 的压力及两密封面相对运动的速度成正比。  The working principle of the sealing device of the present invention is as follows. Under the effect of fluid pressure or when the two sealing surfaces move relative to each other, the fluid stored in the small pits rotates at a certain speed, so that high-speed vortices are formed in the small pits to block the leakage of the fluid, thereby achieving sealing. Its ability to block leaks is directly proportional to the pressure of the fluid and the relative speed of the two sealing surfaces.
两密封面上的小坑最好交错排列， 这样可以保证有更大的扰流， 从而实 现更好的密封效果。  The small pits on the two sealing surfaces are preferably staggered, so as to ensure greater turbulence and achieve a better sealing effect.
在上述实施例中， 密封装置的两密封面上均形成有蜂窝状小坑。 但在本 发明另一实施例中， 仅在一个密封面上形成有蜂窝状小坑， 另一密封面为光 滑表面，  In the above embodiments, honeycomb-shaped pits are formed on both sealing surfaces of the sealing device. However, in another embodiment of the present invention, a small honeycomb pit is formed on only one sealing surface, and the other sealing surface is a smooth surface.
以上结合附图和实施例对本发明进行了说明. 但本领域技术人员应当理 解， 上述实施例仅是例示性的而非限制性的， 在不背离本发明的精神和范围 的条件下可对上述实施例作出种种改进。  The present invention has been described above with reference to the accompanying drawings and embodiments. However, those skilled in the art should understand that the above embodiments are merely illustrative and not restrictive, and the above may be described without departing from the spirit and scope of the present invention. The examples make various improvements.

Claims

权利要求 Rights request
1. 一种密封装置， 包括两个具有相对合理间隙的密封面， 1. A sealing device comprising two sealing surfaces with a relatively reasonable gap,
其特征在于， 至少一个密封面上形成有小凹坑， 各凹坑形成蜂窝状结 构， 在流体压力作用下或两个密封面产生相对运动时， 各凹坑内的流体形成 旋涡而对流体的泄漏形成阻隔从而实现密封。  It is characterized in that at least one sealing surface is formed with small dimples, and each dimple forms a honeycomb structure. When the pressure of the fluid or the relative movement of the two sealing surfaces occurs, the fluid in each dimple forms a vortex to leak the fluid. A barrier is formed to achieve a seal.
2. 如权利要求 1所述的密封装置，  2. The sealing device according to claim 1,
其特征在于， 所述凹坑为半圓形凹坑。  It is characterized in that the pit is a semi-circular pit.
3. 如权利要求 2所述的密封装置，  3. The sealing device according to claim 2,
其特征在于， 两个密封面上均形成有蜂窝状四坑。  It is characterized in that four honeycomb-shaped pits are formed on both sealing surfaces.
4. 如权利要求 3所述的密封装置，  4. The sealing device according to claim 3,
其特征在于， 两密封面上的蜂窝状凹坑交错排列。  It is characterized in that the honeycomb pits on the two sealing surfaces are staggered.
PCT/CN1997/000025 1996-03-29 1997-03-28 Sealing means WO1997037160A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21484/97A AU2148497A (en) 1996-03-29 1997-03-28 Sealing means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN96103309.6 1996-03-29
CN 96103309 CN1148675A (en) 1996-03-29 1996-03-29 Cellular sealing means

Publications (1)

Publication Number Publication Date
WO1997037160A1 true WO1997037160A1 (en) 1997-10-09

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Application Number Title Priority Date Filing Date
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CN (1) CN1148675A (en)
AU (1) AU2148497A (en)
WO (1) WO1997037160A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691654B (en) * 2012-06-15 2014-11-26 吉林大学 Mud pump piston with pits on surface
CN106640741B (en) * 2017-01-04 2022-08-02 珠海格力节能环保制冷技术研究中心有限公司 Sealing member, compressor and air conditioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420163A (en) * 1978-10-25 1983-12-13 Taiho Kogyo Co., Ltd. Mechanical seal
US4461487A (en) * 1982-04-01 1984-07-24 Eagle Industry Co., Ltd. Stern tube seal
CN2039776U (en) * 1988-10-26 1989-06-21 唐平 All liquid diaphragm mechanical sealing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420163A (en) * 1978-10-25 1983-12-13 Taiho Kogyo Co., Ltd. Mechanical seal
US4461487A (en) * 1982-04-01 1984-07-24 Eagle Industry Co., Ltd. Stern tube seal
CN2039776U (en) * 1988-10-26 1989-06-21 唐平 All liquid diaphragm mechanical sealing device

Also Published As

Publication number Publication date
AU2148497A (en) 1997-10-22
CN1148675A (en) 1997-04-30

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