CN204986094U - Long -life high pressure fuel pipe sealing joint - Google Patents
Long -life high pressure fuel pipe sealing joint Download PDFInfo
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- CN204986094U CN204986094U CN201520725775.5U CN201520725775U CN204986094U CN 204986094 U CN204986094 U CN 204986094U CN 201520725775 U CN201520725775 U CN 201520725775U CN 204986094 U CN204986094 U CN 204986094U
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Abstract
本实用新型公开了一种长寿命的高压油管密封接头，包括一端连接高压油管的中空堵头、外套螺母和中间设有油路的旋入式直通接头，所述旋入式直通接头的一端设置有连接外套螺母的外螺纹，另一端设置有连接外接设备的外螺纹，所述堵头伸入外套螺母内的一端沿周向设置有与外套螺母内端面相互挤压的凸缘，所述堵头相对旋入式直通接头的一端呈球面状，所述旋入式直通接头连接外套螺母的一端居中设置有圆柱形凹槽，所述圆柱形凹槽内设置有圆柱形的陶瓷嵌块，所述陶瓷嵌块中部开有锥形凹槽以及油液通孔，本实用新型陶瓷嵌块的锥面与堵头的球面之间相互挤压，来实现密封，该密封结构具有耐磨损、寿命长、密封性能好、结构简单、拆装方便的优点。
The utility model discloses a long-life high-pressure oil pipe sealing joint, which comprises a hollow plug connected to a high-pressure oil pipe at one end, a casing nut and a screw-in straight-through joint with an oil circuit in the middle, and one end of the screw-in straight-through joint is arranged There is an external thread for connecting the outer nut, and the other end is provided with an external thread for connecting external equipment. The end of the plug extending into the outer nut is provided with a flange that is squeezed with the inner end surface of the outer nut along the circumference. The plug The head is in a spherical shape relative to one end of the screw-in straight-through joint. The end of the screw-in straight-through joint connected to the outer nut is centrally provided with a cylindrical groove, and a cylindrical ceramic insert is arranged in the cylindrical groove. There is a tapered groove and an oil through hole in the middle of the ceramic insert. The conical surface of the ceramic insert of the utility model and the spherical surface of the plug are squeezed each other to realize sealing. The sealing structure has wear resistance and long life. It has the advantages of long length, good sealing performance, simple structure and convenient disassembly and assembly.
Description
技术领域 technical field
本实用新型涉一种油管接头，尤其涉及一种长寿命的高压油管密封接头。 The utility model relates to an oil pipe joint, in particular to a long-life high-pressure oil pipe sealing joint.
背景技术 Background technique
高压油管是高压油路的组成部分，要求油管需要承受一定的油压而且有一定的疲劳强度，保证管路的密封要求。高压油管一般用于挖掘机、液压助力、工程机械液压油管等领域，在使用过程中，高压油管接头处容易发生漏油事故。 The high-pressure oil pipe is an integral part of the high-pressure oil circuit, which requires the oil pipe to withstand a certain oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipeline. High-pressure oil pipes are generally used in fields such as excavators, hydraulic boosters, and construction machinery hydraulic oil pipes. During use, oil leakage accidents are prone to occur at the joints of high-pressure oil pipes.
现有的高压油管密封接头，由于密封接触面采用相同材料，在工作过程中，接触面会发生严重的粘着磨损，从而引起接触面密封不严而导致油液泄露。 In the existing high-pressure oil pipe sealing joint, since the sealing contact surface is made of the same material, severe adhesive wear will occur on the contact surface during the working process, which will cause oil leakage due to poor sealing of the contact surface.
实用新型内容 Utility model content
本实用新型要解决的技术问题是，提供一种耐磨损，密封性能好，结构简单，拆装方便的高压油管密封接头。 The technical problem to be solved by the utility model is to provide a high-pressure oil pipe sealing joint with wear resistance, good sealing performance, simple structure and convenient disassembly.
本实用新型是通过以下技术方案解决上述技术问题的： The utility model solves the problems of the technologies described above through the following technical solutions:
一种长寿命的高压油管密封接头，包括一端连接高压油管的中空堵头、外套螺母和中间设有油路的旋入式直通接头，所述旋入式直通接头的一端设置有连接外套螺母的外螺纹，另一端设置有连接外接设备的外螺纹，所述堵头伸入外套螺母内的一端沿周向设置有与外套螺母内端面相互挤压的凸缘，所述堵头相对旋入式直通接头的一端呈球面状，所述旋入式直通接头连接外套螺母的一端居中设置有圆柱形凹槽，所述圆柱形凹槽内设置有圆柱形的陶瓷嵌块，所述陶瓷嵌块中部开有锥形凹槽以及油液通孔。 A long-life high-pressure oil pipe sealing joint, including a hollow plug connected to a high-pressure oil pipe at one end, an overcoat nut, and a screw-in straight-through joint with an oil circuit in the middle, and one end of the screw-in through-through joint is provided with a connection with the overcoat nut External thread, the other end is provided with an external thread for connecting external equipment, the end of the plug extending into the outer nut is provided with a flange that is squeezed with the inner end surface of the outer nut along the circumferential direction, and the plug is relatively screw-in. One end of the straight-through joint is spherical, and one end of the screw-in straight-through joint connected to the outer nut is centrally provided with a cylindrical groove, and a cylindrical ceramic inlay is arranged in the cylindrical groove, and the middle part of the ceramic inlay There are tapered grooves and oil through holes.
本方案的堵头球面所接触形成密封面的锥面采用陶瓷材料，由于密封面的两者采用不同材料，在工作过程中不会发生同种材料间的粘着磨损，增长了使用寿命，提高了密封性。 In this solution, the conical surface of the sealing surface contacted by the spherical surface of the plug is made of ceramic materials. Since the two sealing surfaces are made of different materials, there will be no adhesive wear between the same materials during the working process, which increases the service life and improves the sealing surface. tightness.
进一步地，所述堵头，外套螺母，旋入式直通接头材料为不锈钢，以提高整体的防腐蚀性能和使用寿命。 Further, the material of the plug, the casing nut, and the screw-in straight-through joint is stainless steel, so as to improve the overall anti-corrosion performance and service life.
进一步地，所述陶瓷嵌块的材料为ZrO2，具有高硬度、高刚性、高强度，化学稳定性好、耐高温、抗腐蚀、热稳定性好、力学性能优良等一系列优点。 Further, the ceramic insert is made of ZrO 2 , which has a series of advantages such as high hardness, high rigidity, high strength, good chemical stability, high temperature resistance, corrosion resistance, good thermal stability, and excellent mechanical properties.
相比现有技术，本实用新型具有如下有益效果：本实用新型通过设置带锥面的陶瓷嵌块和带球面端头的堵头，并通过外套螺母的内螺纹与旋入式直通接头的外螺纹之间的配合来调节陶瓷嵌块的锥面与堵头的球面相互挤压形成密封配合，由于密封面的两者采用不同材料，在工作过程中不会发生同种材料间的粘着磨损，增长了使用寿命，提高了密封性，结构简单、拆卸方便。 Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a ceramic insert with a conical surface and a plug with a spherical end, and through the internal thread of the outer casing nut and the external thread of the screw-in straight-through joint. The cooperation between the threads is used to adjust the conical surface of the ceramic insert and the spherical surface of the plug to form a sealing fit. Since the two sealing surfaces are made of different materials, there will be no adhesive wear between the same materials during the working process. The service life is increased, the sealing performance is improved, the structure is simple, and the disassembly is convenient.
附图说明 Description of drawings
图1是本实用新型实施例的立体结构示意图。 Fig. 1 is a three-dimensional structure diagram of an embodiment of the utility model.
图2是本实用新型实施例的主视示意图。 Fig. 2 is a schematic front view of an embodiment of the utility model.
图3是图2中A-A向剖视示意图。 Fig. 3 is a schematic cross-sectional view along A-A in Fig. 2 .
图中示出：1-堵头；2-外套螺母；3-陶瓷嵌块；4-旋入式直通接头。 The figure shows: 1-plug; 2-outer nut; 3-ceramic insert; 4-screw-in straight-through joint.
具体实施方式 detailed description
下面结合附图和具体实施例对本实用新型的实用新型目的作进一步详细地描述，实施例不能在此一一赘述，但本实用新型的实施方式并不因此限定于以下实施例。 The purpose of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific examples. The examples cannot be repeated here one by one, but the implementation of the utility model is not therefore limited to the following examples.
如图1至图3所示，一种长寿命的高压油管密封接头，包括一端连接高压油管的中空堵头1、外套螺母2和中间设有油路的旋入式直通接头4，所述旋入式直通接头4的一端设置有连接外套螺母2的外螺纹，另一端设置有连接外接设备的外螺纹，所述堵头1伸入外套螺母2内的一端沿周向设置有与外套螺母2内端面相互挤压的凸缘，所述堵头1相对旋入式直通接头4的一端呈球面状，所述旋入式直通接头4连接外套螺母2的一端居中设置有圆柱形凹槽，所述圆柱形凹槽内设置有圆柱形的陶瓷嵌块3，所述陶瓷嵌块3中部开有锥形凹槽以及油液通孔。 As shown in Figures 1 to 3, a long-life high-pressure oil pipe sealing joint includes a hollow plug 1 connected to a high-pressure oil pipe at one end, an outer casing nut 2, and a screw-in straight-through joint 4 with an oil circuit in the middle. One end of the in-type straight-through joint 4 is provided with an external thread for connecting the outer casing nut 2, and the other end is provided with an external thread for connecting the external device. Flanges with inner end surfaces extruding each other, the plug 1 is spherical in shape relative to one end of the screw-in straight-through joint 4, and the end of the screw-in straight-through joint 4 connected to the outer casing nut 2 is centrally provided with a cylindrical groove, so A cylindrical ceramic slug 3 is arranged in the cylindrical groove, and a tapered groove and an oil through hole are opened in the middle of the ceramic slug 3 .
本实施例的堵头球面所接触形成密封面的锥面采用陶瓷材料，由于密封面的两者采用不同材料，在工作过程中不会发生同种材料间的粘着磨损，增长了使用寿命，提高了密封性。 In this embodiment, the conical surface that forms the sealing surface contacted by the spherical surface of the plug is made of ceramic material. Since the two sealing surfaces are made of different materials, no adhesive wear between the same materials will occur during the working process, which increases the service life. Improved sealing.
本实施例中，所述堵头1，外套螺母2，旋入式直通接头4材料为不锈钢，以提高整体的防腐蚀性能和使用寿命。 In this embodiment, the material of the plug 1, the casing nut 2, and the screw-in straight-through joint 4 is stainless steel, so as to improve the overall anti-corrosion performance and service life.
本实施例中，所述陶瓷嵌块3的材料为ZrO2，具有高硬度、高刚性、高强度，化学稳定性好、耐高温、抗腐蚀、热稳定性好、力学性能优良等一系列优点。 In this embodiment, the material of the ceramic insert 3 is ZrO 2 , which has a series of advantages such as high hardness, high rigidity, high strength, good chemical stability, high temperature resistance, corrosion resistance, good thermal stability, and excellent mechanical properties. .
本实施例通过陶瓷嵌块3的锥面与堵头1的球面之间的挤压来实现密封，陶瓷嵌,3置于旋入式直通接头4的圆柱形凹槽内，堵头1则与外套螺母2配合，两者之间的压紧程度可以通过外套螺母2的内螺纹与旋入式直通接头4的外螺纹之间的配合来调节。 In this embodiment, the seal is realized by extrusion between the conical surface of the ceramic insert 3 and the spherical surface of the plug 1. The ceramic insert 3 is placed in the cylindrical groove of the screw-in straight-through joint 4, and the plug 1 is in contact with the spherical surface of the plug 1. The overcoat nut 2 cooperates, and the degree of compression between the two can be adjusted through the cooperation between the internal thread of the overcoat nut 2 and the external thread of the screw-in straight-through joint 4 .
安装时，将旋入式直通接头4加热使其膨胀，并将陶瓷嵌块3冷却处理，使其收缩，然后将陶瓷嵌块3通过液压装置压入旋入式直通接头4的圆柱形凹槽内，装配零件恢复至室温后，就形成了过盈配合。 During installation, the screw-in straight-through joint 4 is heated to make it expand, and the ceramic insert 3 is cooled to make it shrink, and then the ceramic insert 3 is pressed into the cylindrical groove of the screw-in straight-through joint 4 through a hydraulic device Inside, after the assembled parts return to room temperature, an interference fit is formed.
使用时，堵头1一端与高压油管相接，堵头1安装于外套螺母2内部，通过旋入外套螺母2与旋入式直通接头4之间的螺纹，来压紧堵头1，从而使堵头1的球面与陶瓷嵌块3的锥面压紧，形成密封面。旋入式直通接头4的另一端通过外螺纹与设备连接，从而形成油液通路。 When in use, one end of the plug 1 is connected to the high-pressure oil pipe, and the plug 1 is installed inside the outer casing nut 2, and the plug 1 is compressed by screwing into the thread between the outer casing nut 2 and the screw-in straight-through joint 4, so that The spherical surface of the plug 1 is pressed against the conical surface of the ceramic insert 3 to form a sealing surface. The other end of the screw-in straight-through joint 4 is connected with the equipment through an external thread, thereby forming an oil passage.
本实施例通过设置陶瓷嵌块3，从而避免在使用过程中发生同种材料的粘着磨损，延长使用寿命，提高密封性，结构简单，拆卸方便。 In this embodiment, the ceramic insert 3 is provided to avoid the adhesive wear of the same material during use, prolong the service life, improve the sealing performance, the structure is simple, and the disassembly is convenient.
本实用新型的上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非是对本实用新型的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型权利要求的保护范围之内。 The above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725775.5U CN204986094U (en) | 2015-09-19 | 2015-09-19 | Long -life high pressure fuel pipe sealing joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725775.5U CN204986094U (en) | 2015-09-19 | 2015-09-19 | Long -life high pressure fuel pipe sealing joint |
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| CN204986094U true CN204986094U (en) | 2016-01-20 |
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| CN201520725775.5U Expired - Fee Related CN204986094U (en) | 2015-09-19 | 2015-09-19 | Long -life high pressure fuel pipe sealing joint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836266A (en) * | 2019-11-25 | 2020-02-25 | 沈阳航天新光集团有限公司 | High-pressure double-sealing device and using method |
| CN112469881A (en) * | 2018-05-25 | 2021-03-09 | 瓦卢瑞克石油天然气法国有限公司 | Threaded tubular connector for casing |
| CN113732958A (en) * | 2021-09-01 | 2021-12-03 | 沪东中华造船(集团)有限公司 | Segmented pre-assembled pipe seal cleaning and protecting device and using method thereof |
-
2015
- 2015-09-19 CN CN201520725775.5U patent/CN204986094U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469881A (en) * | 2018-05-25 | 2021-03-09 | 瓦卢瑞克石油天然气法国有限公司 | Threaded tubular connector for casing |
| CN112469881B (en) * | 2018-05-25 | 2023-11-03 | 瓦卢瑞克石油天然气法国有限公司 | Threaded tubular connectors for ferrules |
| CN110836266A (en) * | 2019-11-25 | 2020-02-25 | 沈阳航天新光集团有限公司 | High-pressure double-sealing device and using method |
| CN113732958A (en) * | 2021-09-01 | 2021-12-03 | 沪东中华造船(集团)有限公司 | Segmented pre-assembled pipe seal cleaning and protecting device and using method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180919 |