CN103591012A - Sealing device capable of being adjusted automatically - Google Patents
Sealing device capable of being adjusted automatically Download PDFInfo
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- CN103591012A CN103591012A CN201310558641.4A CN201310558641A CN103591012A CN 103591012 A CN103591012 A CN 103591012A CN 201310558641 A CN201310558641 A CN 201310558641A CN 103591012 A CN103591012 A CN 103591012A
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- seal
- pull rod
- seal ring
- spring
- seal rings
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Abstract
The invention discloses a sealing device capable of being adjusted automatically. The sealing device comprises an installation base and a central pull rod, wherein a seal cavity is formed in the installation base, springs are fixedly arranged at the upper end and the lower end of the seal cavity, the end portion of each spring is connected with a U-shaped hoop, the springs are in compressed states, a seal ring is arranged between each upper U-shaped hoop and the corresponding lower U-shaped hoop in a clamped mode, and the central pull rod penetrates through the seal cavity and the seal rings; the springs are in the compressed states all the time, it can be guaranteed that the seal rings return rapidly after moving, therefore, extruding force, borne by the seal rings in the radial direction, of the central pull rod is reduced greatly, the stress states of the seal rings are improved, the original situation that the seal rings bear axial friction force and the radial extruding force is reasonable changed into the situation that the seal rings only bear the axial friction force, abrasion to the seal rings is reduced, and service life is prolonged.
Description
Technical field
The present invention relates to seal arrangement, specifically refer to self-adjustable seal arrangement.
Background technique
Drilling pump is as the visual plant of drillng operation, when work, to shaft bottom delivery cycle cleaner for high-pressure drilling fluid, at the bottom of flushing manhole, fractured rock, cooling and lubricating drill bit, and landwaste carried and returns to ground.In current drilling equipment, the drilling pump of use is mainly reciprocating piston pump, and its structure comprises power end and two parts of fluid end.Wherein, power end mainly comprises support assembly, crank assemblby, small gear assembly and cross head assembly etc., it by driving gear and crank connecting by transmission of power to fluid end; Fluid end mainly comprises fluid cylinder, pump head, center pull rod etc., and it is discharged drilling fluid by the to-and-fro motion of piston with certain pressure and flow.And center pull rod is the connection hinge of drilling well pump power end and fluid end, the gear pump in the dynamic end in joint of it and power end provides oil lubricating; By the spray pump of fluid end, to carry out lubrication with clean water cooling with the joint of fluid end.
For fear of the cooling water of fluid end, enter into the oil sump of power end, damage machine oil, common way is exactly to install rubber is set at the root of center pull rod, and seal ring carries out encapsulation process.Because the reciprocatory motion of piston, center pull rod is also being carried out axially reciprocating simultaneously, in the effect that is subject to thrust upwards, make it to produce beating radially, this meeting of beating radially produces larger extruding force to seal ring, the degree of wear of seal ring is strengthened, cause the lifetime of seal ring, affect the working efficiency of drilling pump.
Summary of the invention
The object of the present invention is to provide self-adjustable seal arrangement, reduce the extruding of center pull rod to seal arrangement, extend the working life of seal arrangement.
Object of the present invention is achieved through the following technical solutions:
Self-adjustable seal arrangement, comprise fitting seat and center pull rod, in described fitting seat, be provided with Seal cage, two ends up and down at Seal cage are all installed with spring, the end of spring is connected with U-shaped anchor ear, spring, in compressive state, is arranged with seal ring between upper and lower two U-shaped anchor ears, and center pull rod runs through Seal cage and passes seal ring.Traditional center pull rod sealing device is also subject to thrust upwards when center pull rod is carried out axially reciprocating, produce beating radially, this meeting of beating radially produces larger extruding force to seal ring, increases the wearing and tearing of seal ring, reduces the working life of seal ring, fitting seat of the present invention is bolted on the pump housing, in Seal cage in fitting seat, arrange two dorsad opposed seal ring the part contacting between center pull rod and fitting seat is carried out to axial seal, the U-shaped anchor ear of installing under seal ring and spring can make seal ring carry out moving up and down among a small circle with the circular runout of center pull rod, spring is all the time in compressive state, can guarantee that seal ring is at mobile Rapid reset later, therefore greatly reduced the extruding force of the center pull rod that seal ring is subject in radial direction, improved the stress of seal ring, seal ring is had and be originally subject to the reasonable of axial friction and lateral extrusion power, be reduced to and be only subject to axial frictional force, the wearing and tearing of seal ring have been reduced, extended working life.
Also comprise the discharge orifice that is inclined at fitting seat bottom righthand side, described discharge orifice is communicated with Seal cage.The discharge orifice being communicated with Seal cage can occur that seal failure phenomenon provides certain forewarning function after the long-time use of seal ring, is convenient to the seal ring that prompting more renews, and avoids reducing working efficiency.
Described discharge orifice is 15 ° with the angle of inclination that axis becomes of center pull rod.Discharge orifice is non-to be horizontally disposed with, and can be the judgement of the seal ring extent of damage certain data supporting is provided, and when discharge orifice has large quantity of fluid to flow out, illustrates that ring wear is serious, need change in time.
The diameter of described discharge orifice is 5.5 ~ 6 ㎜.The intact degree of seal ring is convenient to observe and monitor in suitable aperture, and diameter is in the scope of 5.5 ~ 6 ㎜, is convenient to the processing of lathe, drilling machine, is conducive to reduce production costs.
Described spring is cylinder-shaped compression spring.Because center pull rod can produce beating radially frequently, thus spring be stretched or frequency when compressed very fast, common spring cannot bear pullling of lower pulling force for a long time, easily fractures or follows the string; Compress Spring is the helical spring bearing to pressure, it is circular that its material section used mostly is, and between the circle of Compress Spring and circle, has certain gap, spring contraction distortion when being subject to external load, store energy of deformation, can guarantee the stability of working in continuous compression, drawing process.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the self-adjustable seal arrangement of the present invention, comprise fitting seat and center pull rod, in described fitting seat, be provided with Seal cage, two ends up and down at Seal cage are all installed with spring, the end of spring is connected with U-shaped anchor ear, spring, in compressive state, is arranged with seal ring between upper and lower two U-shaped anchor ears, and center pull rod runs through Seal cage and passes seal ring; Spring is all the time in compressive state, can guarantee that seal ring is at mobile Rapid reset later, therefore greatly reduced the extruding force of the center pull rod that seal ring is subject in radial direction, improved the stress of seal ring, seal ring is had and be originally subject to the reasonable of axial friction and lateral extrusion power, be reduced to and be only subject to axial frictional force, reduced the wearing and tearing of seal ring, extended working life;
2, the self-adjustable seal arrangement of the present invention, also comprises the discharge orifice that is inclined at fitting seat bottom righthand side, and described discharge orifice is communicated with Seal cage.The discharge orifice being communicated with Seal cage can occur that seal failure phenomenon provides certain forewarning function after the long-time use of seal ring, is convenient to the seal ring that prompting more renews, and avoids reducing working efficiency;
3, the self-adjustable seal arrangement of the present invention, because center pull rod can produce beating radially frequently, so spring be stretched or frequency when compressed very fast, common spring cannot bear pullling of lower pulling force for a long time, easily fractures or follows the string; Compress Spring is the helical spring bearing to pressure, it is circular that its material section used mostly is, and between the circle of Compress Spring and circle, has certain gap, spring contraction distortion when being subject to external load, store energy of deformation, can guarantee the stability of working in continuous compression, drawing process.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms the application's a part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional view of A-A;
Mark and corresponding component title in accompanying drawing:
1-fitting seat, 2-center pull rod, the 3-pump housing, 4-seal ring, 5-U shape anchor ear, 6-spring, 7-discharge orifice.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, the self-adjustable seal arrangement of the present invention, comprise fitting seat 1 and center pull rod 2, in fitting seat 1, be provided with Seal cage, two ends up and down at Seal cage are all installed with spring 6, and the end of spring 6 is connected with U-shaped anchor ear 5, and spring 6 is in compressive state, between upper and lower two U-shaped anchor ears 5, be arranged with seal ring 4, center pull rod 2 runs through Seal cage and passes seal ring 4.Traditional center pull rod sealing device is also subject to thrust upwards when center pull rod 2 is carried out axially reciprocating, produce beating radially, this meeting of beating radially produces larger extruding force to seal ring 4, increases the wearing and tearing of seal ring 4, reduces the working life of seal ring 4, fitting seat 1 of the present invention is bolted on the pump housing 3, in Seal cage in fitting seat 1, arrange two dorsad opposed seal ring 4 part contacting between center pull rod 2 and fitting seat 1 is carried out to axial seal, the U-shaped anchor ear 5 of installing seal ring 4 times and spring 6 can make seal ring 4 carry out moving up and down among a small circle with the circular runout of center pull rod 2, spring 6 is all the time in compressive state, can guarantee that seal ring 4 is at mobile Rapid reset later, therefore greatly reduced the extruding force of the center pull rod 2 that seal ring 4 is subject in radial direction, improved the stress of seal ring 4, seal ring 4 is had and be originally subject to the reasonable of axial friction and lateral extrusion power, be reduced to and be only subject to axial frictional force, the wearing and tearing of seal ring 4 have been reduced, extended working life.
As depicted in figs. 1 and 2, the self-adjustable seal arrangement of the present invention, also comprises the discharge orifice 7 that is inclined at fitting seat 1 bottom righthand side, and discharge orifice 7 is communicated with Seal cage, discharge orifice 7 is 15 ° with the angle of inclination that axis becomes of center pull rod 2, and the diameter of discharge orifice 7 is 5.5 ~ 6 ㎜.The discharge orifice 7 being communicated with Seal cage can occur that seal failure phenomenon provides certain forewarning function after the long-time use of seal ring 4, is convenient to the seal ring 4 that prompting more renews, and avoids reducing working efficiency; Discharge orifice 7 is non-to be horizontally disposed with, and can be seal ring 4 extent of damage judgements certain data supporting is provided, and when discharge orifice 7 has large quantity of fluid to flow out, seal ring 4 serious wear is described, need change in time; The intact degree of seal ring 4 is convenient to observe and monitor in suitable aperture, and diameter is in the scope of 5.5 ~ 6 ㎜, is convenient to the processing of lathe, drilling machine, is conducive to reduce production costs.
Above-described embodiment; object of the present invention, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. self-adjustable seal arrangement, comprise fitting seat (1) and center pull rod (2), it is characterized in that: described fitting seat is provided with Seal cage in (1), at the two ends up and down of Seal cage, be all installed with spring (6), the end of spring (6) is connected with U-shaped anchor ear (5), spring (6), in compressive state, is arranged with seal ring (4) between upper and lower two U-shaped anchor ears (5), center pull rod (2) runs through Seal cage and passes seal ring (4).
2. self-adjustable seal arrangement according to claim 1, is characterized in that: also comprise the discharge orifice (7) that is inclined at fitting seat (1) bottom righthand side, described discharge orifice (7) is communicated with Seal cage.
3. self-adjustable seal arrangement according to claim 2, is characterized in that: described discharge orifice (7) is 15 ° with the angle of inclination that axis becomes of center pull rod (2).
4. self-adjustable seal arrangement according to claim 3, is characterized in that: the diameter of described discharge orifice (7) is 5.5 ~ 6 ㎜.
5. according to the self-adjustable seal arrangement described in claim 1 ~ 4 any one, it is characterized in that: described spring (6) is cylinder-shaped compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558641.4A CN103591012A (en) | 2013-11-12 | 2013-11-12 | Sealing device capable of being adjusted automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558641.4A CN103591012A (en) | 2013-11-12 | 2013-11-12 | Sealing device capable of being adjusted automatically |
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| Publication Number | Publication Date |
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| CN103591012A true CN103591012A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310558641.4A Pending CN103591012A (en) | 2013-11-12 | 2013-11-12 | Sealing device capable of being adjusted automatically |
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| CN (1) | CN103591012A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587862A (en) * | 2016-02-05 | 2016-05-18 | 沈阳耐蚀合金泵股份有限公司 | Axial surface mechanical seal applied to rotating machinery |
| CN106931165A (en) * | 2017-03-16 | 2017-07-07 | 武汉天颖环境工程股份有限公司 | The rotary sealing mechanism that a kind of axial-radial is automatically adjusted |
| CN107131137A (en) * | 2017-06-29 | 2017-09-05 | 中国五冶集团有限公司 | Full-sized car workshop ventilating fan |
| CN108204463A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | For the axle sealing structure of automobile |
| CN108775401A (en) * | 2018-08-28 | 2018-11-09 | 郭其祥 | A kind of mechanically-sealing apparatus |
| CN111022648A (en) * | 2019-11-30 | 2020-04-17 | 牡丹江市林海石油打捞工具有限公司 | Tension adjustment double-roller set deviation rectifying packing box |
| CN113374682A (en) * | 2021-07-15 | 2021-09-10 | 西南石油大学 | Fracturing pump hydraulic end plunger hole seal structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61236970A (en) * | 1985-04-01 | 1986-10-22 | ホワン ヨン チユアン | Shaft sealing device and automatic circulating lubricating system thereof |
| CN2071724U (en) * | 1990-06-21 | 1991-02-20 | 陈殿甲 | Self-compensation sealing device for spherical static friction ring |
| WO1991014890A1 (en) * | 1990-03-23 | 1991-10-03 | Mueller & Brauchli Ag | Stuffing box seal for piston rods |
| CN202402649U (en) * | 2011-12-08 | 2012-08-29 | 南京凯盛国际工程有限公司 | Novel high-temperature sealing device |
| CN203560080U (en) * | 2013-11-12 | 2014-04-23 | 成都科盛石油科技有限公司 | Floating type sealing device |
-
2013
- 2013-11-12 CN CN201310558641.4A patent/CN103591012A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61236970A (en) * | 1985-04-01 | 1986-10-22 | ホワン ヨン チユアン | Shaft sealing device and automatic circulating lubricating system thereof |
| WO1991014890A1 (en) * | 1990-03-23 | 1991-10-03 | Mueller & Brauchli Ag | Stuffing box seal for piston rods |
| CN2071724U (en) * | 1990-06-21 | 1991-02-20 | 陈殿甲 | Self-compensation sealing device for spherical static friction ring |
| CN202402649U (en) * | 2011-12-08 | 2012-08-29 | 南京凯盛国际工程有限公司 | Novel high-temperature sealing device |
| CN203560080U (en) * | 2013-11-12 | 2014-04-23 | 成都科盛石油科技有限公司 | Floating type sealing device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587862A (en) * | 2016-02-05 | 2016-05-18 | 沈阳耐蚀合金泵股份有限公司 | Axial surface mechanical seal applied to rotating machinery |
| CN105587862B (en) * | 2016-02-05 | 2019-05-24 | 沈阳耐蚀合金泵股份有限公司 | Axial plane mechanical seal applied to rotating machinery |
| CN108204463A (en) * | 2016-12-20 | 2018-06-26 | 重庆乐迪机车车辆配件有限公司 | For the axle sealing structure of automobile |
| CN108204463B (en) * | 2016-12-20 | 2024-03-01 | 河南省优普密封科技有限公司 | Shaft sealing structure for automobile |
| CN106931165A (en) * | 2017-03-16 | 2017-07-07 | 武汉天颖环境工程股份有限公司 | The rotary sealing mechanism that a kind of axial-radial is automatically adjusted |
| CN106931165B (en) * | 2017-03-16 | 2018-10-26 | 武汉天颖环境工程股份有限公司 | A kind of rotary sealing mechanism of axial-radial automatic adjustment |
| CN107131137A (en) * | 2017-06-29 | 2017-09-05 | 中国五冶集团有限公司 | Full-sized car workshop ventilating fan |
| CN107131137B (en) * | 2017-06-29 | 2019-04-23 | 中国五冶集团有限公司 | Full-sized car workshop exhaust fan |
| CN108775401A (en) * | 2018-08-28 | 2018-11-09 | 郭其祥 | A kind of mechanically-sealing apparatus |
| CN108775401B (en) * | 2018-08-28 | 2024-05-24 | 郭其祥 | Mechanical sealing device |
| CN111022648A (en) * | 2019-11-30 | 2020-04-17 | 牡丹江市林海石油打捞工具有限公司 | Tension adjustment double-roller set deviation rectifying packing box |
| CN113374682A (en) * | 2021-07-15 | 2021-09-10 | 西南石油大学 | Fracturing pump hydraulic end plunger hole seal structure |
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Application publication date: 20140219 |