CN103046885A - Hitting device for loosening coupling of oil extraction pipe - Google Patents
Hitting device for loosening coupling of oil extraction pipe Download PDFInfo
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- CN103046885A CN103046885A CN2013100246045A CN201310024604A CN103046885A CN 103046885 A CN103046885 A CN 103046885A CN 2013100246045 A CN2013100246045 A CN 2013100246045A CN 201310024604 A CN201310024604 A CN 201310024604A CN 103046885 A CN103046885 A CN 103046885A
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Abstract
The invention discloses a hitting device for loosening a coupling of an oil extraction pipe. The hitting device comprises a hitting hammer and a driving device. The driving device is a hydraulic motor. An annular groove is arranged at the lower end of a large gear meshed with a small gear on a hydraulic motor output shaft, an outer ring of a thrust bearing is closely matched in the annular groove, an annular thrust plate supporting a pressure spring is arranged at the lower end of an inner ring of the thrust bearing, the upper end of the large gear is connected with a cylindrical end face cam, the upper end of a hitting rod is connected with a horizontal transverse rod supported on the cylindrical cam end face, the hitting hammer is arranged at the lower end of the hitting rod, the pressure spring is arranged on the hitting rod between the annular thrust plate and the upper end annular face of the hitting hammer, an outer bearing is arranged between the lower portion of the large gear and a casing, the upper portion of the hitting rod is matched in a large gear hole and a thrust bearing inner ring hole in sliding mode, the upper end of a crank arm is connected with a hammer tube, a hammering block is arranged at the lower end of the crank arm, and the hammering block corresponds to the hitting hammer. The hitting device is used for loosening the coupling the oil extraction pipe.
Description
Technical field:
The present invention relates to a kind of jar, particularly the loosening jar of a kind of flow string box cupling.
Background technology:
The oil extraction in oil field well depth has thousands of rice, connects in aggregates with threaded collar joint between the oil pipe.This oil pipe that is threaded can get rusty in the down-hole, when needs keep in repair underground equipment, just the connection of thread of oil pipe need to be separated, yet, because the corrosion of screw thread is generally more serious, the dismounting difficulty, adopt at present the method for artificial knocking to make the junction loosening, its shortcoming one is that efficient is low, labour intensity is large, the 2nd, easily oil pipe is impacted distortion, economic loss.The method that adopts chemical attack is abroad arranged, but because the infiltration of this corrosive liquid is slow, and the time is long, and effect is also undesirable, fail extensively to adopt.The patent No. provides a kind of means of vibrating loosening tubing coupling for 2009200891782 patent, though yet in practical application, can become flexible for loosening easily box cupling, but loosening efficient is low, particularly for the loosening box cupling of difficulty, still can't resolve, can only manually beat greatly knock carry out, labour intensity is large, and strikes easily bad box cupling, causes oil pipe to scrap.
Summary of the invention:
The purpose of this invention is to provide the loosening jar of the high a kind of flow string box cupling of a kind of loosening oil recovery pipe collar efficient.
The technical scheme that realizes the object of the invention is, a kind of flow string box cupling becomes flexible jar, comprise vibration hammer and drive unit, it is characterized in that: described drive unit is hydraulic motor, the lower end of the gear wheel that is meshed with pinion on the hydraulic motor output shaft is provided with cannelure, the outer ring of thrust bearing is a tight fit in this cannelure, the lower end of this thrust bearing inner ring is provided with the annular thrust plate of abutment pressure spring, the upper end of above-mentioned gear wheel connects the tubular edge cam, the upper end of vibration bar is connected with horizontal cross bar on being supported on above-mentioned barrel cam end face, the lower end of vibration bar is the vibration hammer, compression spring places on the vibration bar between the ring surface of above-mentioned annular thrust plate and vibration hammer upper end, be provided with outer bearing between above-mentioned gear wheel bottom and the shell, the top cunning of above-mentioned vibration bar fits over above-mentioned gear wheel hole, in the thrust bearing inner ring hole, the bottom of vibration bar and vibration hammer place the hammer cylinder with the jar lower housing portion, the upper end of connecting lever is connected with the hammer cylinder, its lower end is provided with hammering block, and this hammering block is relative with the vibration hammer.
A kind of flow string box cupling becomes flexible jar, comprise vibration hammer and drive unit, it is characterized in that: described drive unit is hydraulic motor, the lower end of the gear that is meshed with gear on the hydraulic motor output shaft is provided with cannelure, the outer ring of bearing is a tight fit in this cannelure, the lower end of this bearing inner race is provided with the annular endplate that blocks bearing ball, the upper end of said gear connects the tubular edge cam, the upper end of vibration hammer stem is connected with horizontal cross bar on being supported on above-mentioned barrel cam end face, the lower end of vibration hammer stem is the vibration hammer, spring places on the annular slab and the vibration bar between the ring surface of vibration hammer upper end of above-mentioned bearing inner race lower end, be provided with another bearing between above-mentioned gear wheel bottom and the shell, the top cunning of above-mentioned hammer stem fits over above-mentioned gear wheel hole, in the bearing inner race hole, the bottom of hammer stem places the hammer cylinder that is connected with vibration hammer housing with the vibration hammer, one end of connecting lever is connected with the hammer cylinder, its other end is provided with hammering block, described hammering block is stepped cylinder, the minor diameter cylinder cunning on this stepped cylinder top fits in the small diameter bore of described connecting lever lower end upper end, the major diameter cylinder of above-mentioned stepped cylinder places the major diameter stepped hole of connecting lever lower end, the screw thread of the major diameter stepped hole outer end of adjusting bolt and above-mentioned connecting lever lower end matches, back-moving spring is set on the minor diameter cylinder of the stepped cylinder in the connecting lever lower end major diameter stepped hole, and above-mentioned stepped cylinder hammering block is relative with described vibration hammer.
The present invention has the remarkable advantage that vibration power is strong, efficient is high and Application Range is wide compared with the prior art.
Description of drawings:
Fig. 1 is structural representation of the present invention.
The specific embodiment:
Be that 200920089178.2 jars are low in loosening oil pipe pipe collar efficient in order to solve the patent No., the problem that can not become flexible the loosening pipe collar of difficulty, after deliberation and analyze, its reason is that the speed of vibration hammer is low, the strength of vibration is little, the shortcoming that causes difficult loosening box cupling not become flexible.According to the analysis to above-mentioned patent, the present invention adopts following technical proposals, be fixed in the hydraulic motor 2 on the jar housing, the lower end of the gear wheel 6 that is meshed with pinion 1 on the hydraulic motor output shaft is provided with cannelure, the outer ring of thrust bearing 16 is a tight fit in this cannelure, the lower end of this thrust bearing inner ring is provided with the annular thrust plate 15 of abutment pressure spring 10, the upper end of above-mentioned gear wheel 6 connects tubular edge cam 5, the upper end of vibration bar 4 is connected with horizontal cross bar 3 on being supported on above-mentioned barrel cam end face, the lower end of vibration bar is the vibration hammer, compression spring 10 places on the annular thrust plate and the vibration bar between the ring surface of vibration hammer upper end that is connected with above-mentioned thrust bearing inner ring lower end, is provided with the bearing support 7 of built-in outer bearing 8 between above-mentioned gear wheel 6 bottoms and the shell 9.The top of above-mentioned vibration bar places above-mentioned gear wheel hole and thrust bearing inner ring hole, and the bottom of vibration bar and vibration hammer place the sleeve with the jar lower housing portion.The upper end of connecting lever 12 is connected with the sleeve of housing, and its lower end is provided with hammering block 11, and this hammering block is relative with the vibration hammer.For jar is become flexible the box cupling of different size, hammering block adopts following structure, described hammering block is stepped cylinder, the minor diameter cylinder cunning on this stepped cylinder top fits in the small diameter bore of described connecting lever lower end upper end, the major diameter cylinder of above-mentioned stepped cylinder places the major diameter stepped hole of connecting lever lower end, adjusting bolt 14 matches with the screw thread of the large diameter hole outer end of above-mentioned connecting lever lower end, back-moving spring 13 is set on the hammering block minor diameter cylinder in the connecting lever lower end large diameter hole, and above-mentioned stepped cylinder hammering block is relative with described vibration hammer.
Using method of the present invention and loosening principle are, flow string box cupling to be become flexible is placed on the hammering block, the primer fluid pressure motor, tubular end face cam on the gear wheel rotates, drive the bottom surface that drops to suddenly cam behind the top that elastic force that the vibration bar overcomes compression spring rises to cam from the summit, tup is when falling, be stressed spring the energy abrupt release out, thereby the vibration speed of jar of the present invention is than large many of the vibration speed of existing patent, when the parameter of spring is selected when suitable, its vibration kinetic energy has larger range of choice to satisfy the loosening requirement of difficult loosening box cupling, because vibration power is large, the efficient of loosening box cupling is high.Hammering block of the present invention adopts adjusting bolt that the distance between hammering block and vibration hammer is regulated, and is applicable to the box cupling of different tube diameters, applied widely.The present invention tries out through the oil field and has obtained significant effect.
Claims (2)
1. a flow string box cupling becomes flexible jar, comprise vibration hammer and drive unit, it is characterized in that: described drive unit is hydraulic motor, the lower end of the gear wheel that is meshed with pinion on the hydraulic motor output shaft is provided with cannelure, the outer ring of thrust bearing is a tight fit in this cannelure, the lower end of this thrust bearing inner ring is provided with the annular thrust plate of abutment pressure spring, the upper end of above-mentioned gear wheel connects the tubular edge cam, the upper end of vibration bar is connected with horizontal cross bar on being supported on above-mentioned barrel cam end face, the lower end of vibration bar is the vibration hammer, compression spring places on the vibration bar between the ring surface of above-mentioned annular thrust plate and vibration hammer upper end, be provided with outer bearing between above-mentioned gear wheel bottom and the shell, the top cunning of above-mentioned vibration bar fits over above-mentioned gear wheel hole, in the thrust bearing inner ring hole, the bottom of vibration bar and vibration hammer place the hammer cylinder with the jar lower housing portion, the upper end of connecting lever is connected with the hammer cylinder, and its lower end is provided with hammering block, and this hammering block is relative with the vibration hammer.
2. a flow string box cupling becomes flexible jar, comprise vibration hammer and drive unit, it is characterized in that: described drive unit is hydraulic motor, the lower end of the gear that is meshed with gear on the hydraulic motor output shaft is provided with cannelure, the outer ring of bearing is a tight fit in this cannelure, the lower end of this bearing inner race is provided with the annular endplate that blocks bearing ball, the upper end of said gear connects the tubular edge cam, the upper end of vibration hammer stem is connected with horizontal cross bar on being supported on above-mentioned barrel cam end face, the lower end of vibration hammer stem is the vibration hammer, spring places on the annular slab and the vibration bar between the ring surface of vibration hammer upper end of above-mentioned bearing inner race lower end, be provided with another bearing between above-mentioned gear wheel bottom and the shell, the top cunning of above-mentioned hammer stem fits over above-mentioned gear wheel hole, in the bearing inner race hole, the bottom of hammer stem places the hammer cylinder that is connected with vibration hammer housing with the vibration hammer, one end of connecting lever is connected with the hammer cylinder, its other end is provided with hammering block, described hammering block is stepped cylinder, the minor diameter cylinder cunning on this stepped cylinder top fits in the small diameter bore of described connecting lever lower end upper end, the major diameter cylinder of above-mentioned stepped cylinder places the major diameter stepped hole of connecting lever lower end, the screw thread of the major diameter stepped hole outer end of adjusting bolt and above-mentioned connecting lever lower end matches, back-moving spring is set on the minor diameter cylinder of the stepped cylinder in the connecting lever lower end major diameter stepped hole, and above-mentioned stepped cylinder hammering block is relative with described vibration hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100246045A CN103046885A (en) | 2013-01-23 | 2013-01-23 | Hitting device for loosening coupling of oil extraction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100246045A CN103046885A (en) | 2013-01-23 | 2013-01-23 | Hitting device for loosening coupling of oil extraction pipe |
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| Publication Number | Publication Date |
|---|---|
| CN103046885A true CN103046885A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100246045A Pending CN103046885A (en) | 2013-01-23 | 2013-01-23 | Hitting device for loosening coupling of oil extraction pipe |
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| CN (1) | CN103046885A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687325A (en) * | 2017-09-21 | 2018-02-13 | 郭子江 | A kind of oil gas field pipe collar loosens and the dual intensity of swivel shackle releases device |
| CN113400255A (en) * | 2021-06-02 | 2021-09-17 | 高邮市华星石油管件制造有限公司 | Oil pipe coupling jar |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB249459A (en) * | 1925-03-23 | 1926-09-22 | August Mueller | Improvements in percussive tools |
| US3747691A (en) * | 1970-02-13 | 1973-07-24 | O Lundman | Striking machine |
| DE2928575A1 (en) * | 1979-07-14 | 1981-01-29 | Bosch Gmbh Robert | Portable drilling hammer assembly - has striker spring stop with shock damper to regulate motion |
| CN1663748A (en) * | 2005-04-12 | 2005-09-07 | 贺启宇 | Low-noise strong-impact weak-recoil electric hammer drill |
| CN101168247A (en) * | 2006-10-23 | 2008-04-30 | 吴纯培 | Straight line shock device |
| CN101509356A (en) * | 2009-03-25 | 2009-08-19 | 郭子江 | Tubing coupling jar |
| CN203308417U (en) * | 2013-01-23 | 2013-11-27 | 郭子江 | Jar for looseness of oil collection pipe coupling |
-
2013
- 2013-01-23 CN CN2013100246045A patent/CN103046885A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB249459A (en) * | 1925-03-23 | 1926-09-22 | August Mueller | Improvements in percussive tools |
| US3747691A (en) * | 1970-02-13 | 1973-07-24 | O Lundman | Striking machine |
| DE2928575A1 (en) * | 1979-07-14 | 1981-01-29 | Bosch Gmbh Robert | Portable drilling hammer assembly - has striker spring stop with shock damper to regulate motion |
| CN1663748A (en) * | 2005-04-12 | 2005-09-07 | 贺启宇 | Low-noise strong-impact weak-recoil electric hammer drill |
| CN101168247A (en) * | 2006-10-23 | 2008-04-30 | 吴纯培 | Straight line shock device |
| CN101509356A (en) * | 2009-03-25 | 2009-08-19 | 郭子江 | Tubing coupling jar |
| CN203308417U (en) * | 2013-01-23 | 2013-11-27 | 郭子江 | Jar for looseness of oil collection pipe coupling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687325A (en) * | 2017-09-21 | 2018-02-13 | 郭子江 | A kind of oil gas field pipe collar loosens and the dual intensity of swivel shackle releases device |
| CN107687325B (en) * | 2017-09-21 | 2023-12-01 | 郭子江 | Dual-energy loosening device for loosening and rotating shackle of oil-gas field pipe hoop |
| CN113400255A (en) * | 2021-06-02 | 2021-09-17 | 高邮市华星石油管件制造有限公司 | Oil pipe coupling jar |
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Application publication date: 20130417 |
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