WO2016004796A1 - 自润滑抽油光杆跟踪密封器 - Google Patents

自润滑抽油光杆跟踪密封器 Download PDF

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Publication number
WO2016004796A1
WO2016004796A1 PCT/CN2015/079674 CN2015079674W WO2016004796A1 WO 2016004796 A1 WO2016004796 A1 WO 2016004796A1 CN 2015079674 W CN2015079674 W CN 2015079674W WO 2016004796 A1 WO2016004796 A1 WO 2016004796A1
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Prior art keywords
oil
rod
sealing
gland
sleeve
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PCT/CN2015/079674
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English (en)
French (fr)
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刘玉玺
刘蕾
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刘玉玺
刘蕾
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Publication of WO2016004796A1 publication Critical patent/WO2016004796A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof

Definitions

  • the utility model relates to a self-lubricating oil-collecting polished rod tracking sealer, in particular to a self-lubricating oil-collecting polished rod tracking sealer which is suitable for use in the case where the pumping light rod is offset from the center of the sealed box and the dry pumping of the oil pump.
  • the oil well sealers currently used generally do not have the function of tracking the oil rod seal and self-lubricating.
  • the pumping rod is offset from the center of the sealed box, partial wear of the sealing packing occurs.
  • the oil pump is dry pumping, the lubrication between the pumping rod and the sealing packing is lost, which accelerates the wear and tear of the sealing packing, thus causing oil well oil leakage.
  • the purpose of the utility model is to design a self-lubricating oil-draining rod tracking sealer, the sealing packing can track the center of the pumping light rod, and the eccentric wear of the sealing filler does not occur.
  • the oil pump is dry pumping, the oil pumping rod and the sealing packing are used. It is still lubricated, thus extending the service life of the seal packing and preventing oil well oil from leaking.
  • the self-lubricating oil-absorbing polished rod tracking sealer provided by the utility model comprises a pumping rod, a sealing box, a lower sealing pad, a follower cup, a sealing packing, a lower pressing sleeve, an oil hole, an upper sealing pad, an upper pressing sleeve, Gland, bolts, washers, lubricants and gland handles.
  • the pumping rod is a smooth round rod to enhance sealing and reduce motion resistance.
  • the sealing box is cylindrical, and the inner cavity is a cylindrical cavity.
  • the bottom of the inner cavity has a circular hole in the center for the oil-peeling rod to pass through, and the lower part of the sealing box is internally threaded for connection with the wellhead, and the upper part of the sealing box is externally threaded for connection with the gland.
  • the lower gasket has a circular sheet shape with a round hole in the center for the oil absorbing rod to pass through, and the lower gasket prevents crude oil from entering the cavity of the sealed box.
  • the follower cup is a cylindrical cup shape, the inner cavity is a cylindrical cavity, and the bottom of the inner cavity has a circular hole in the center so that the oil absorbing rod passes through, and the bottom of the moving cup has a chamfer to reduce the follower cup.
  • the sliding resistance of the bottom, the sealing packing is loaded into the inner cavity of the follower cup.
  • the lower pressing sleeve is cylindrical, and has a round hole at the center for the oil absorbing rod to pass through, and the upper portion has a flange, so that the lower pressing sleeve is taken out from the follower cup, and the lower pressing sleeve has an oil hole for lubrication.
  • the agent flows into the circular hole of the lower pressing sleeve, and the top of the lower pressing sleeve has a cylindrical counterbore to facilitate the installation of the upper sealing gasket and the upper pressing sleeve.
  • the upper gasket has a circular sheet shape with a round hole at the center for the oil absorbing rod to pass through, and the upper gasket prevents the lubricant from being carried out by the oil absorbing rod.
  • the upper press sleeve is cylindrical and has a round hole at the center for the oil-pumping rod to pass through, and a flange is formed on the upper portion thereof so that the upper press sleeve is taken out from the counterbore at the top of the lower press sleeve.
  • the gland is a cylindrical cup with a round hole in the center for the oil absorbing rod to pass through.
  • the gland has internal threads to match the external thread of the sealing box.
  • the gland has bolts and washers to facilitate the addition of lubricant and gland.
  • the outside has a gland handle for tightening the gland.
  • the self-lubricating oil-draining rod tracking sealer in use, first installs the sealing box through the oil-absorbing rod on the wellhead, and the lower sealing gasket is installed on the bottom of the inner cavity of the sealing box through the oil-absorbing rod, and the following material
  • the cup is installed in the inner cavity of the sealed box through the oil absorbing rod, pressed on the lower sealing pad, and then the sealing packing is loaded into the follower cup, and the lower pressing sleeve is inserted into the follower cup through the oil absorbing rod, and the pressure is pressed.
  • the upper sealing gasket is inserted into the counterbore at the top of the lower pressing sleeve through the oil absorbing rod, and then the upper pressing sleeve is inserted into the counterbore at the top of the lower pressing sleeve through the oil absorbing rod, and pressed on the upper sealing. Place the pad and then install the gland on the sealed box through the pumping rod. Finally, tighten the gland, press the lower seal, seal packing and upper seal, remove the bolts, add lubricant, and tighten the bolts before use.
  • the utility model has the advantages that the self-lubricating oil-draining rod tracking sealer can follow the oil pumping cup, the sealing packing, the lower pressing sleeve, the upper sealing gasket and the upper pressing sleeve when the oil-absorbing light rod deviates from the center of the sealing box.
  • the polished rod is translated, and the sealing packing is always aligned with the center of the pumping rod without eccentric wear. Since the oil absorbing rod is infiltrated into the lubricant, an oil film is formed on the surface of the oil absorbing rod when the oil absorbing rod moves up and down. When the oil pump is dry, the friction between the oil absorbing rod and the sealing filler is reduced, thereby prolonging the sealing.
  • the service life of the packing prevents the oil well from leaking.
  • FIG. 1 is a front cross-sectional view showing a cylindrical cavity of a self-lubricating oil-absorbing polished rod tracking sealer according to an embodiment of the present invention
  • FIG. 2 is a front cross-sectional view showing the upper portion of the inner cavity of the self-lubricating oil-draining rod tracking sealer in the embodiment of the present invention, which is a cylindrical cavity and a lower portion is a truncated-shaped cavity.
  • the self-lubricating oil-absorbing polished rod tracking sealer provided by the embodiment shown in FIG. 1 includes a pumping polished rod 1, a sealing box 2, a lower sealing pad 3, a follower cup 4, a sealing packing 5, and a lower pressing sleeve 6. Oil The hole 7, the upper gasket 8, the upper press sleeve 9, the gland 10, the bolt 11, the washer 12, the lubricant 13, the gland handle 14, and the like.
  • the pumping rod 1 is a smooth round rod to enhance the sealing and reduce the movement resistance.
  • the sealing box 2 is cylindrical, and its inner cavity is a cylindrical cavity.
  • the bottom of the inner cavity has a circular hole in the center so that the oil absorbing rod 1 passes through, and the lower part of the sealing box 2 has internal threads for connection with the wellhead, and the sealed box 2
  • the upper portion has an external thread for connection to the gland 10.
  • the lower gasket 3 has a circular sheet shape with a circular hole in the center thereof so that the oil absorbing rod 1 passes therethrough, and the lower gasket 3 prevents crude oil from entering the cavity of the sealed casing 2.
  • the follower cup 4 is a cylindrical cup shape, and its inner cavity is a cylindrical cavity, and a circular hole is formed in the center of the bottom of the inner cavity, so that the oil absorbing rod 1 passes through, and the bottom of the moving cup 4 has a chamfer to reduce
  • the sealing packing 5 is loaded into the inner cavity of the follower cup 4 with the sliding resistance at the bottom of the moving cup 4.
  • the lower pressing sleeve 6 has a cylindrical shape, and has a round hole at the center thereof for the oil absorbing rod 1 to pass through, and has an upper portion having a flange so that the lower pressing sleeve 6 is taken out from the follower cup 4, and the lower pressing sleeve 6 is placed thereon.
  • the upper gasket 8 has a circular sheet shape with a circular hole in the center thereof so that the oil absorbing rod 1 passes therethrough, and the upper gasket 8 prevents the lubricant 13 from being carried out by the oil absorbing rod 1.
  • the upper press sleeve 9 is cylindrical and has a circular hole in the center thereof for the passage of the oil absorbing rod 1, and its upper portion has a flange to facilitate the upper press sleeve 9 to be taken out from the counterbore at the top of the lower press sleeve 6.
  • the gland 10 has a cylindrical cup shape, and has a round hole at the center thereof for the passage of the oil absorbing rod 1.
  • the gland 10 has internal threads to cooperate with the external threads of the sealing case 2, and the gland 10 has bolts 11 and washers 12 thereon.
  • the outside of the gland 10 has a gland handle 14 for tightening the gland 10.
  • the self-lubricating oil-absorbing polished rod tracking sealer provided by the embodiment shown in FIG. 2 includes a pumping polished rod 1, a sealing box 2, a lower sealing pad 3, a follower cup 4, a sealing packing 5, and a lower pressing sleeve 6. Oil The hole 7, the upper gasket 8, the upper press sleeve 9, the gland 10, the bolt 11, the washer 12, the lubricant 13, the gland handle 14, and the like.
  • the pumping rod 1 is a smooth round rod to enhance the sealing and reduce the movement resistance.
  • the sealing box 2 is cylindrical, and its inner cavity is a cylindrical cavity.
  • the bottom of the inner cavity has a circular hole in the center so that the oil absorbing rod 1 passes through, and the lower part of the sealing box 2 has internal threads for connection with the wellhead, and the sealed box 2
  • the upper portion has an external thread for connection to the gland 10.
  • the lower gasket 3 has a circular sheet shape with a circular hole in the center thereof so that the oil absorbing rod 1 passes therethrough, and the lower gasket 3 prevents crude oil from entering the cavity of the sealed casing 2.
  • the follower cup 4 is a cylindrical cup shape, the upper part of the inner cavity is a cylindrical cavity body, and the lower part is a truncated cone-shaped cavity, and the bottom of the inner cavity has a circular hole at the center, so that the pumping light rod 1 passes through, and the follower cup 4
  • the bottom is chamfered to reduce the sliding resistance of the bottom of the follower cup 4, and the sealing packing 5 is loaded into the inner cavity of the follower cup 4.
  • the lower pressing sleeve 6 has a cylindrical shape, and has a round hole at the center thereof for the oil absorbing rod 1 to pass through, and has an upper portion having a flange so that the lower pressing sleeve 6 is taken out from the follower cup 4, and the lower pressing sleeve 6 is placed thereon.
  • the upper gasket 8 has a circular sheet shape with a circular hole in the center thereof so that the oil absorbing rod 1 passes therethrough, and the upper gasket 8 prevents the lubricant 13 from being carried out by the oil absorbing rod 1.
  • the upper press sleeve 9 is cylindrical and has a circular hole in the center thereof for the passage of the oil absorbing rod 1, and its upper portion has a flange to facilitate the upper press sleeve 9 to be taken out from the counterbore at the top of the lower press sleeve 6.
  • the gland 10 has a cylindrical cup shape, and has a round hole at the center thereof for the passage of the oil absorbing rod 1.
  • the gland 10 has internal threads to cooperate with the external threads of the sealing case 2, and the gland 10 has bolts 11 and washers 12 thereon. In order to add the lubricant 13, the outside of the gland 10 has a gland handle 14 for tightening the gland 10.
  • the self-lubricating oil-draining rod tracking sealer in use, firstly seals the sealing box 2 through the pumping rod 1 on the wellhead, and the lower gasket 3 through the pumping rod 1 to be installed at the bottom of the inner chamber of the sealed box 2.
  • the follower cup 4 is installed in the inner cavity of the sealed box 2 through the oil absorbing rod 1 and pressed in the lower part
  • the sealing packing 5 is then loaded into the follower cup 4
  • the lower pressing sleeve 6 is inserted into the follower cup 4 through the pumping rod 1, pressed against the sealing packing 5, and the upper sealing pad is placed.
  • the gland 10 is mounted on the sealed casing 2 through the oil absorbing rod 1. Finally, the gland 10 is tightened, the lower gasket 3, the sealing packing 5 and the upper gasket 8 are pressed, the bolt 11 is removed, the lubricant 13 is added, and the bolt 11 is tightened, and it can be used.
  • the utility model has the advantages that the self-lubricating oil-draining rod tracking sealer can follow the oil pumping cup, the sealing packing, the lower pressing sleeve, the upper sealing gasket and the upper pressing sleeve when the oil-absorbing light rod deviates from the center of the sealing box.
  • the polished rod is translated, and the sealing packing is always aligned with the center of the pumping rod without eccentric wear. Since the oil absorbing rod is infiltrated into the lubricant, an oil film is formed on the surface of the oil absorbing rod when the oil absorbing rod moves up and down. When the oil pump is dry, the friction between the oil absorbing rod and the sealing filler is reduced, thereby prolonging the sealing.
  • the service life of the packing prevents the oil well from leaking.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sealing Devices (AREA)

Abstract

一种自润滑抽油光杆跟踪密封器，包括抽油光杆（1）、密封盒（2）、下密封垫（3）、随动料杯（4）、密封填料（5）、下压套（6）、油孔（7）、上密封垫（8）、上压套（9）、压盖（10）、螺栓（11）、垫圈（12）、润滑剂（13）和压盖手柄（14）。当抽油光杆偏离密封盒中心时，由于密封填料跟随抽油光杆平移，密封填料始终对准抽油光杆中心，不会发生偏磨。由于抽油光杆浸润在润滑剂内，在抽油光杆上下运动时，会在抽油光杆表面形成油膜。当油泵干抽时，减少了抽油光杆与密封填料之间的摩擦，因而可以延长密封填料的使用寿命，防止油井原油泄漏。

Description

自润滑抽油光杆跟踪密封器 技术领域
本实用新型涉及一种自润滑抽油光杆跟踪密封器，尤其是适用于抽油光杆偏离密封盒中心和油泵干抽情况下使用的自润滑抽油光杆跟踪密封器。
背景技术
目前所使用的油井密封器，一般没有跟踪抽油光杆密封和自润滑的功能。当抽油光杆偏离密封盒中心时，会发生密封填料的偏磨。当油泵干抽时，抽油光杆和密封填料之间失去润滑，加快了密封填料的磨损消耗，因而造成油井原油泄漏。
实用新型内容
本实用新型的目的在于设计一种自润滑抽油光杆跟踪密封器，密封填料能跟踪抽油光杆的中心，不会发生密封填料的偏磨，当油泵干抽时，抽油光杆和密封填料之间仍然得到润滑，因而延长密封填料的使用寿命，防止油井原油泄漏。
本实用新型提供的自润滑抽油光杆跟踪密封器，其包括抽油光杆、密封盒、下密封垫、随动料杯、密封填料、下压套、油孔、上密封垫、上压套、压盖、螺栓、垫圈、润滑剂和压盖手柄等。抽油光杆为光滑的圆杆，以加强密封性，减小运动阻力。密封盒为圆柱形，其内腔为圆柱形腔体， 内腔底部中心有圆孔，以便抽油光杆穿过，密封盒的下部有内螺纹，以便与井口连接，密封盒的上部有外螺纹，以便与压盖连接。下密封垫为圆形片状，其中心有圆孔，以便抽油光杆穿过，下密封垫防止原油进入密封盒的腔体内。随动料杯为圆柱杯状，其内腔为圆柱形腔体，内腔底部中心有圆孔，以便抽油光杆穿过，随动料杯的底部有倒角，以减小随动料杯底部的滑动阻力，密封填料装入随动料杯的内腔里。下压套为圆柱形，其中心有圆孔，以便抽油光杆穿过，其上部有凸缘，以便于下压套从随动料杯内取出，下压套上有油孔，以便于润滑剂流入下压套的圆孔内，下压套的顶部有圆柱形沉孔，以便于安装上密封垫和上压套。上密封垫为圆形片状，其中心有圆孔，以便抽油光杆穿过，上密封垫防止润滑剂被抽油光杆带出。上压套为圆柱形，其中心有圆孔，以便抽油光杆穿过，其上部有凸缘，以便于上压套从下压套顶部的沉孔内取出。压盖为圆柱杯状其中心有圆孔，以便抽油光杆穿过，压盖有内螺纹，与密封盒的外螺纹相配合，压盖上有螺栓和垫圈，以便于添加润滑剂，压盖的外侧有压盖手柄，用以拧紧压盖。
该自润滑抽油光杆跟踪密封器，在使用时，先将密封盒穿过抽油光杆安装在井口上，将下密封垫穿过抽油光杆安装在密封盒的内腔底部，将随动料杯穿过抽油光杆安装在密封盒的内腔里，压在下密封垫上，然后将密封填料装入随动料杯内，将下压套穿过抽油光杆装入随动料杯内，压在密封填料上，将上密封垫穿过抽油光杆装入下压套顶部的沉孔内，再将上压套穿过抽油光杆装入下压套顶部的沉孔内，压在上密封垫上，然后将压盖穿过抽油光杆安装在密封盒上。最后，拧紧压盖，压紧下密封垫、密封填料和上密封垫，卸下螺栓，加入润滑剂，再拧紧螺栓，就可以使用了。
本实用新型的优点在于该自润滑抽油光杆跟踪密封器，当抽油光杆偏离密封盒中心时，由于随动料杯、密封填料、下压套、上密封垫和上压套可以跟随抽油光杆平移，密封填料始终对准抽油光杆中心，不会发生偏磨。由于抽油光杆浸润在润滑剂内，在抽油光杆上下运动时，会在抽油光杆表面形成油膜，当油泵干抽时，减少了抽油光杆与密封填料之间的摩擦，因而可以延长密封填料的使用寿命，防止油井原油泄漏。
附图说明
图1是本实用新型实施例提供的自润滑抽油光杆跟踪密封器的随动料杯内腔为圆柱形腔体的主剖视图；
图2是本实用新型实施例提供的自润滑抽油光杆跟踪密封器的随动料杯内腔上部为圆柱形腔体、下部为圆台形腔体的主剖视图。
在图1和图2中，
1-抽油光杆，2-密封盒，3-下密封垫，4-随动料杯，5-密封填料，6-下压套，7-油孔，8-上密封垫，9-上压套，10-压盖，11-螺栓，12-垫圈，13-润滑剂，14-压盖手柄。
具体实施方式
下面结合附图及实施例对本实用新型作进一步详细说明。
实施例1
如图1所示的本实施例提供的自润滑抽油光杆跟踪密封器，其包括抽油光杆1、密封盒2、下密封垫3、随动料杯4、密封填料5、下压套6、油 孔7、上密封垫8、上压套9、压盖10、螺栓11、垫圈12、润滑剂13和压盖手柄14等。抽油光杆1为光滑的圆杆，以加强密封性，减小运动阻力。密封盒2为圆柱形，它的内腔为圆柱形腔体，内腔底部中心有圆孔，以便抽油光杆1穿过，密封盒2的下部有内螺纹，以便与井口连接，密封盒2的上部有外螺纹，以便与压盖10连接。下密封垫3为圆形片状，它的中心有圆孔，以便抽油光杆1穿过，下密封垫3防止原油进入密封盒2的腔体内。随动料杯4为圆柱杯状，它的内腔为圆柱形腔体，内腔底部中心有圆孔，以便抽油光杆1穿过，随动料杯4的底部有倒角，以减小随动料杯4底部的滑动阻力，密封填料5装入随动料杯4的内腔里。下压套6为圆柱形，它的中心有圆孔，以便抽油光杆1穿过，它的上部有凸缘，以便于下压套6从随动料杯4内取出，下压套6上有油孔7，以便于润滑剂13流入下压套6的圆孔内，下压套6的顶部有圆柱形沉孔，以便于安装上密封垫8和上压套9。上密封垫8为圆形片状，它的中心有圆孔，以便抽油光杆1穿过，上密封垫8防止润滑剂13被抽油光杆1带出。上压套9为圆柱形，它的中心有圆孔，以便抽油光杆1穿过，它的上部有凸缘，以便于上压套9从下压套6顶部的沉孔内取出。压盖10为圆柱杯状，它的中心有圆孔，以便抽油光杆1穿过，压盖10有内螺纹，与密封盒2的外螺纹相配合，压盖10上有螺栓11和垫圈12，以便于添加润滑剂13，压盖10的外侧有压盖手柄14，用以拧紧压盖10。
实施例2
如图2所示的本实施例提供的自润滑抽油光杆跟踪密封器，其包括抽油光杆1、密封盒2、下密封垫3、随动料杯4、密封填料5、下压套6、油 孔7、上密封垫8、上压套9、压盖10、螺栓11、垫圈12、润滑剂13和压盖手柄14等。抽油光杆1为光滑的圆杆，以加强密封性，减小运动阻力。密封盒2为圆柱形，它的内腔为圆柱形腔体，内腔底部中心有圆孔，以便抽油光杆1穿过，密封盒2的下部有内螺纹，以便与井口连接，密封盒2的上部有外螺纹，以便与压盖10连接。下密封垫3为圆形片状，它的中心有圆孔，以便抽油光杆1穿过，下密封垫3防止原油进入密封盒2的腔体内。随动料杯4为圆柱杯状，它的内腔上部为圆柱形腔体、下部为圆台形腔体，内腔底部中心有圆孔，以便抽油光杆1穿过，随动料杯4的底部有倒角，以减小随动料杯4底部的滑动阻力，密封填料5装入随动料杯4的内腔里。下压套6为圆柱形，它的中心有圆孔，以便抽油光杆1穿过，它的上部有凸缘，以便于下压套6从随动料杯4内取出，下压套6上有油孔7，以便于润滑剂13流入下压套6的圆孔内，下压套6的顶部有圆柱形沉孔，以便于安装上密封垫8和上压套9。上密封垫8为圆形片状，它的中心有圆孔，以便抽油光杆1穿过，上密封垫8防止润滑剂13被抽油光杆1带出。上压套9为圆柱形，它的中心有圆孔，以便抽油光杆1穿过，它的上部有凸缘，以便于上压套9从下压套6顶部的沉孔内取出。压盖10为圆柱杯状，它的中心有圆孔，以便抽油光杆1穿过，压盖10有内螺纹，与密封盒2的外螺纹相配合，压盖10上有螺栓11和垫圈12，以便于添加润滑剂13，压盖10的外侧有压盖手柄14，用以拧紧压盖10。
该自润滑抽油光杆跟踪密封器，在使用时，先将密封盒2穿过抽油光杆1安装在井口上，将下密封垫3穿过抽油光杆1安装在密封盒2的内腔底部，将随动料杯4穿过抽油光杆1安装在密封盒2的内腔里，压在下密 封垫3上，然后将密封填料5装入随动料杯4内，将下压套6穿过抽油光杆1装入随动料杯4内，压在密封填料5上，将上密封垫8穿过抽油光杆1装入下压套6顶部的沉孔内，再将上压套9穿过抽油光杆1装入下压套6顶部的沉孔内，压在上密封垫8上，然后将压盖10穿过抽油光杆1安装在密封盒2上。最后，拧紧压盖10，压紧下密封垫3、密封填料5和上密封垫8，卸下螺栓11，加入润滑剂13，再拧紧螺栓11，就可以使用了。
本实用新型的优点在于该自润滑抽油光杆跟踪密封器，当抽油光杆偏离密封盒中心时，由于随动料杯、密封填料、下压套、上密封垫和上压套可以跟随抽油光杆平移，密封填料始终对准抽油光杆中心，不会发生偏磨。由于抽油光杆浸润在润滑剂内，在抽油光杆上下运动时，会在抽油光杆表面形成油膜，当油泵干抽时，减少了抽油光杆与密封填料之间的摩擦，因而可以延长密封填料的使用寿命，防止油井原油泄漏。

Claims (2)

  1. 一种自润滑抽油光杆跟踪密封器，其包括抽油光杆(1)、密封盒(2)、下密封垫(3)、随动料杯(4)、密封填料(5)、下压套(6)、油孔(7)、上密封垫(8)、上压套(9)、压盖(10)、螺栓(11)、垫圈(12)、润滑剂(13)和压盖手柄(14)，其特征在于，所述抽油光杆(1)为光滑的圆杆，所述密封盒(2)为圆柱形，所述密封盒(2)的内腔为圆柱形腔体，所述内腔底部中心有圆孔，所述密封盒(2)的下部有内螺纹，所述密封盒(2)的上部有外螺纹，所述密封盒(2)穿过所述抽油光杆(1)安装在井口上，所述下密封垫(3)为中心有圆孔的圆形片状，所述下密封垫(3)穿过所述抽油光杆(1)安装在所述密封盒(2)的内腔底部，所述随动料杯(4)为圆柱杯状，所述随动料杯(4)的内腔为圆柱形腔体，所述内腔底部中心有圆孔，所述随动料杯(4)的底部有倒角，所述随动料杯(4)穿过所述抽油光杆(1)安装在所述密封盒(2)的内腔里，所述密封填料(5)装入所述随动料杯(4)内，所述下压套(6)为中心有圆孔的圆柱形，所述下压套(6)的上部有凸缘，所述下压套(6)的顶部有圆柱形沉孔，所述下压套(6)上设有所述油孔(7)，所述下压套(6)穿过所述抽油光杆(1)装入所述随动料杯(4)内，所述上密封垫(8)为中心有圆孔的圆形片状，所述上密封垫(8)穿过所述抽油光杆(1)装入所述下压套(6)顶部的沉孔内，所述上压套(9)为中心有圆孔的圆柱形，所述上压套(9)的上部有凸缘，所述上压套(9)穿过所述抽油光杆(1)装入所述下压套(6)顶部的沉孔内，所述压盖(10)为中心有圆孔的圆柱杯状，所述压盖(10)有内螺纹，与所述密封盒(2)的外螺纹相配 合，所述压盖(10)上设有所述螺栓(11)和所述垫圈(12)，所述压盖(10)的外侧有所述压盖手柄(14)，所述压盖(10)穿过所述抽油光杆(1)安装在所述密封盒(2)上。
  2. 根据权利要求1所述的自润滑抽油光杆跟踪密封器，其特征在于，所述随动料杯(4)的内腔上部为圆柱形腔体、下部为圆台形腔体。
PCT/CN2015/079674 2014-07-10 2015-05-25 自润滑抽油光杆跟踪密封器 WO2016004796A1 (zh)

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