CN204267736U - Park cylinder axle seal arrangement - Google Patents
Park cylinder axle seal arrangement Download PDFInfo
- Publication number
- CN204267736U CN204267736U CN201420722164.0U CN201420722164U CN204267736U CN 204267736 U CN204267736 U CN 204267736U CN 201420722164 U CN201420722164 U CN 201420722164U CN 204267736 U CN204267736 U CN 204267736U
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- sealing
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- lips
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- 238000007789 sealing Methods 0.000 claims abstract description 124
- 239000010687 lubricating oil Substances 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
本实用新型涉及一种停放缸轴用密封装置，包括密封圈，密封圈具有用于贴合停放缸活塞杆外壁的密封机构和嵌入密封圈内的环形骨架，密封机构包括两个密封主唇和两个密封副唇，两个密封主唇分别位于密封副唇的上下两侧，两个密封副唇之间具有用于储存润滑油的空间，每个密封主唇的背侧箍有弹簧，使密封主唇紧紧压住停放缸活塞杆外壁。本停放缸轴用密封装置，采用嵌入式骨架，提高了密封圈的稳定性，使密封圈不容易变形。在密封圈橡胶体唇侧增加两个密封唇，构成第二个密封层，提高了密封圈的密封效果，同时两个密封层（密封副唇）之间可以储存润滑油，减小橡胶件与轴相对运动时的摩擦，提高密封圈的使用寿命。
The utility model relates to a sealing device for a parking cylinder shaft, which comprises a sealing ring. The sealing ring has a sealing mechanism for fitting the outer wall of the piston rod of the parking cylinder and an annular skeleton embedded in the sealing ring. The sealing mechanism includes two sealing main lips and Two auxiliary sealing lips, two main sealing lips are respectively located on the upper and lower sides of the auxiliary sealing lip, there is a space for storing lubricating oil between the two auxiliary sealing lips, and a spring is hooped on the back side of each main sealing lip, so that The sealing main lip tightly presses the outer wall of the piston rod of the parking cylinder. The sealing device for the parking cylinder shaft adopts an embedded frame, which improves the stability of the sealing ring and makes the sealing ring not easily deformed. Two sealing lips are added on the lip side of the rubber body of the sealing ring to form a second sealing layer, which improves the sealing effect of the sealing ring. At the same time, lubricating oil can be stored between the two sealing layers (auxiliary sealing lips), reducing the contact between rubber parts and The friction during the relative movement of the shaft improves the service life of the sealing ring.
Description
技术领域 technical field
本发明涉及轨道交通车辆的制动器停放缸，特别涉及停放缸轴用密封。 The invention relates to a brake parking cylinder of a rail transit vehicle, in particular to a seal for the parking cylinder shaft.
背景技术 Background technique
现有制动器停放缸内部轴用密封圈一般都由骨架和弹性橡胶密封元件组成，轴用密封圈套在轴上，通过两个主唇贴紧实现密封。但由于没有副唇作支撑，主唇变形大，密封效果不理想，并且润滑油容易流失，长时间使用很容易磨损、老化、变形，失去密封作用，使用寿命较短。 The shaft sealing ring inside the existing brake parking cylinder is generally composed of a skeleton and an elastic rubber sealing element. The shaft sealing ring is sleeved on the shaft, and the sealing is realized by two main lips. But because there is no auxiliary lip for support, the deformation of the main lip is large, the sealing effect is not ideal, and the lubricating oil is easy to lose, and it is easy to wear, age, and deform after long-term use, and the sealing effect is lost, and the service life is short.
发明内容 Contents of the invention
本发明所要解决的技术问题是，克服现有技术的上述缺点，提供一种停放缸轴用密封装置，采用带骨架的四唇密封圈，解决常用密封圈密封效果不理想的问题，同时能够在两道密封层之间储存润滑油，使得相较于常用密封圈该密封圈拥有更长的使用寿命。 The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a sealing device for parking the cylinder shaft, which adopts a four-lip sealing ring with a skeleton to solve the problem of unsatisfactory sealing effect of common sealing rings, and at the same time can The lubricating oil is stored between the two sealing layers, which makes the sealing ring have a longer service life than common sealing rings.
为了解决以上技术问题，本发明提供的停放缸轴用密封装置，包括密封圈，其特征在于：所述密封圈具有用于贴合停放缸活塞杆外壁的密封机构和嵌入密封圈内的环形骨架，所述密封机构包括两个密封主唇和两个密封副唇，两个密封主唇分别位于密封副唇的上下两侧，两个密封副唇之间具有用于储存润滑油的空间，每个密封主唇的背侧箍有弹簧，使密封主唇紧紧压住停放缸活塞杆外壁。 In order to solve the above technical problems, the sealing device for parking cylinder shaft provided by the present invention includes a sealing ring, which is characterized in that: the sealing ring has a sealing mechanism for fitting the outer wall of the piston rod of the parking cylinder and an annular skeleton embedded in the sealing ring , the sealing mechanism includes two main sealing lips and two auxiliary sealing lips, the two main sealing lips are respectively located on the upper and lower sides of the auxiliary sealing lips, there is a space for storing lubricating oil between the two auxiliary sealing lips, each A spring is hooped on the back side of the first sealing main lip, so that the sealing main lip tightly presses the outer wall of the piston rod of the parking cylinder.
为了进一步解决上述技术问题，本停放缸轴用密封装置还具有如下改进： In order to further solve the above technical problems, the sealing device for the parking cylinder shaft also has the following improvements:
1、所述停放缸底部开设台阶孔，密封圈通过挡圈固定在台阶孔内。 1. There is a step hole at the bottom of the parking cylinder, and the sealing ring is fixed in the step hole through the retaining ring.
2、所述密封圈为橡胶密封圈。 2. The sealing ring is a rubber sealing ring.
3、所述密封主唇与密封副唇之间形成槽沟，且密封主唇外凸于密封副唇。 3. A groove is formed between the main sealing lip and the auxiliary sealing lip, and the main sealing lip protrudes from the auxiliary sealing lip.
4、所述环形骨架的横截面呈L型。 4. The cross section of the ring skeleton is L-shaped.
本停放缸轴用密封装置，采用嵌入式骨架，提高了密封圈的稳定性，使密封圈不容易变形。在密封圈橡胶体唇侧增加两个密封唇，构成第二个密封层，提高了密封圈的密封效果，同时两个密封层（密封副唇）之间可以储存润滑油，减小橡胶件与轴相对运动时的摩擦，提高密封圈的使用寿命。 The sealing device for the shaft of the parking cylinder adopts an embedded frame, which improves the stability of the sealing ring and makes the sealing ring not easily deformed. Two sealing lips are added on the lip side of the rubber body of the sealing ring to form a second sealing layer, which improves the sealing effect of the sealing ring. At the same time, lubricating oil can be stored between the two sealing layers (auxiliary sealing lips), reducing the contact between rubber parts and The friction during the relative movement of the shaft improves the service life of the sealing ring.
附图说明 Description of drawings
下面结合附图对本发明作进一步的说明。 The present invention will be further described below in conjunction with the accompanying drawings.
图1是本发明停放缸轴用密封装置剖视图。 Fig. 1 is a sectional view of a sealing device for parking a cylinder shaft of the present invention.
图2是本发明停放缸轴用密封装置的密封圈剖视图。 Fig. 2 is a sectional view of the sealing ring of the sealing device for parking the cylinder shaft of the present invention.
具体实施方式 detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。 In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
如图1、图2所示，为本实施例停放缸轴用密封装置，其具有橡胶密封圈3，停放缸底部4开设台阶孔，密封圈3通过挡圈2固定在台阶孔内。密封圈3进行密封，使得停放缸活塞杆1在密封圈3内自由滑动。密封圈3具有用于贴合停放缸活塞杆外壁的密封机构3.1和嵌入密封圈内的环形骨架3.3，密封机构3.1包括两个密封主唇和两个密封副唇，两个密封主唇分别位于密封副唇的上下两侧，两个密封副唇之间具有用于储存润滑油的空间3.5，每个密封主唇的背侧箍有弹簧3.2，3.4，使密封主唇紧紧压住停放缸活塞杆外壁。如图2所示，骨架3.3嵌入密封圈橡胶体内，其外圈与密封圈橡胶体外圈组成内包骨架波浪形支撑部。密封主唇与密封副唇之间形成槽沟，且密封主唇外凸于密封副唇。 As shown in Fig. 1 and Fig. 2, it is the sealing device for parking the cylinder shaft of this embodiment, which has a rubber sealing ring 3, and the bottom 4 of the parking cylinder is provided with a stepped hole, and the sealing ring 3 is fixed in the stepped hole by the retaining ring 2. The sealing ring 3 is sealed so that the parking cylinder piston rod 1 slides freely in the sealing ring 3 . The sealing ring 3 has a sealing mechanism 3.1 for fitting the outer wall of the piston rod of the parking cylinder and an annular skeleton 3.3 embedded in the sealing ring. The sealing mechanism 3.1 includes two sealing main lips and two sealing auxiliary lips, and the two sealing main lips are respectively located on the On the upper and lower sides of the auxiliary sealing lip, there is a space 3.5 for storing lubricating oil between the two auxiliary sealing lips, and springs 3.2 and 3.4 are hooped on the back side of each main sealing lip to make the main sealing lip tightly press the parking cylinder The outer wall of the piston rod. As shown in Figure 2, the skeleton 3.3 is embedded in the rubber body of the seal ring, and its outer ring and the outer ring of the rubber seal ring form a wave-shaped supporting part of the inner skeleton. A groove is formed between the main sealing lip and the auxiliary sealing lip, and the main sealing lip protrudes from the auxiliary sealing lip.
密封圈使用时，内圈两个密封主唇和两个密封副唇同时支撑在停放缸活塞杆外壁上，其中密封副唇起辅助支撑作用，两个密封主唇分别在弹簧的作用下贴紧停放缸活塞杆外壁实现密封；同时两个密封主唇保证润滑油储存两道密封层内部不会流出，以减少密封圈与塞杆之间摩擦力，提高使用寿命。 When the sealing ring is in use, the two main sealing lips and two auxiliary sealing lips of the inner ring are supported on the outer wall of the piston rod of the parking cylinder at the same time, and the auxiliary sealing lips play an auxiliary supporting role, and the two main sealing lips are respectively attached to each other under the action of the spring The outer wall of the piston rod of the parking cylinder is sealed; at the same time, the two main sealing lips ensure that the lubricating oil is stored in the two sealing layers and will not flow out, so as to reduce the friction between the sealing ring and the plug rod and improve the service life.
除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本发明要求的保护范围。 In addition to the above-mentioned embodiments, the present invention can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722164.0U CN204267736U (en) | 2014-11-26 | 2014-11-26 | Park cylinder axle seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722164.0U CN204267736U (en) | 2014-11-26 | 2014-11-26 | Park cylinder axle seal arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267736U true CN204267736U (en) | 2015-04-15 |
Family
ID=52802607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420722164.0U Expired - Lifetime CN204267736U (en) | 2014-11-26 | 2014-11-26 | Park cylinder axle seal arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405885A (en) * | 2014-11-26 | 2015-03-11 | 南京浦镇海泰制动设备有限公司 | Sealing device for parking cylinder shaft |
| GB2586837A (en) * | 2019-09-05 | 2021-03-10 | Pegler Yorkshire Group Ltd | Seal and plumbing fitting |
| CN114746679A (en) * | 2019-12-02 | 2022-07-12 | 斯凯孚公司 | Lubricating shaft seal assembly |
-
2014
- 2014-11-26 CN CN201420722164.0U patent/CN204267736U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405885A (en) * | 2014-11-26 | 2015-03-11 | 南京浦镇海泰制动设备有限公司 | Sealing device for parking cylinder shaft |
| GB2586837A (en) * | 2019-09-05 | 2021-03-10 | Pegler Yorkshire Group Ltd | Seal and plumbing fitting |
| GB2586837B (en) * | 2019-09-05 | 2023-09-06 | Aalberts Integrated Piping Systems Ltd | Plumbing Fitting with Movable Cavity Containing a Mechanism |
| US11828364B2 (en) | 2019-09-05 | 2023-11-28 | Aalberts Integrated Piping Systems Limited | Seal and plumbing fitting |
| CN114746679A (en) * | 2019-12-02 | 2022-07-12 | 斯凯孚公司 | Lubricating shaft seal assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211800 Nanjing Road, Pukou District, Jiangsu, No. 10 Patentee after: CRRC NANJING PUZHEN HAITAI BRAKE EQUIPMENTS Co.,Ltd. Address before: 211800 Nanjing Road, Pukou District, Jiangsu, No. 10 Patentee before: NANJING PUZHEN HAITAI BRAKE EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20150415 |
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| CX01 | Expiry of patent term |