CN107514238A - Guide rail is clamped under a kind of iron driller impact tong with hard and soft transfer characteristic - Google Patents

Guide rail is clamped under a kind of iron driller impact tong with hard and soft transfer characteristic Download PDF

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Publication number
CN107514238A
CN107514238A CN201711000362.0A CN201711000362A CN107514238A CN 107514238 A CN107514238 A CN 107514238A CN 201711000362 A CN201711000362 A CN 201711000362A CN 107514238 A CN107514238 A CN 107514238A
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CN
China
Prior art keywords
piston
lead ring
end lead
guide rail
hard
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CN201711000362.0A
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Chinese (zh)
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CN107514238B (en
Inventor
南树歧
叶强
王璐
王小通
严敏肖
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China National Petroleum Corp
Baoji Oilfield Machinery Co Ltd
CNPC National Oil and Gas Drilling Equipment Engineering Technology Research Center Co Ltd
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Baoji Oilfield Machinery Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16Connecting or disconnecting pipe couplings or joints
    • E21B19/161Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses clamp guide rail under a kind of iron driller impact tong with hard and soft transfer characteristic, the lower pincers guide rail is semicircular configuration from top to bottom, including upper end lead ring and lower end lead ring, upper end lead ring is sulfided by flexible rubber and lower end lead ring, and above-mentioned three parts form lower pincers rail body together;In the right and left of lower pincers rail body, upper end lead ring, flexible rubber and lower end lead ring are vertically drilled with a via, a set of piston rod Hard link mechanism are provided with each via jointly;Often covering the structure of piston rod Hard link mechanism is, it is respectively fitted with upper piston, piston rod and lower piston from top to down in the vias, the upper port of upper end lead ring has upper end hydraulic fluid port by upper piston chamber external connection, and the lower port of lower end lead ring has lower end hydraulic fluid port by lower piston chamber external connection.The device of the present invention, it can eliminate and rotate through positioning, clamp the equipment damages such as tooth bursts apart, guide rail scratches, substantially increase the service life of equipment.

Description

Guide rail is clamped under a kind of iron driller impact tong with hard and soft transfer characteristic
Technical field
The invention belongs to mechanical equipment technical field, is related under a kind of iron driller impact tong with hard and soft transfer characteristic and clamps Guide rail.
Background technology
Iron driller be carry out drilling rod, on drill collar joint shackle work modernization instruments, instead of traditional liquid gas tong, Type B clamps.The impact tong of iron driller is divided into pincers and lower pincers, a drilling rod of the lower tight bottom of clamp, upper another immediately above of clamp Drilling rod and button and the function of shackle on bottom drilling rod central rotation, realization.
At present, on the impact tong of iron driller pincers in completion after shackle, it is necessary to around it is upper pincers lower pincers between guide rail in The heart returns to home position, and guide rail is two with one heart and has cooperation cambered surface becket, is welded on pincers and lower pincers.But When shackle on impact tong, because there is certain deviation drilling rod position, drilling rod center can not be completely concentric with guideway centreline, because This, when upper shackle, the revolutes of upper pincers has two, one be upper and lower pincers guide rail center, one be drilling rod center, As a result cause crossing for rotary motion to position, often shown in working at the scene and destruction is produced in the weaker position of structural strength, Have plenty of iron driller guide rail to be worn, have plenty of guide rail weld seam tear, also have plenty of pincers tooth and crumble etc., reduce iron driller Reliability and service life.
There are following several solution methods both at home and abroad at present:First, drilling rod center is looked for by the centering body of clamping clip so that Every time clamp drilling rod, drilling rod center and guideway centreline are concentric, but this design method cause clamp jaw mechanism complexity, weight compared with Weight;And in Product processing and assembling process, it is impossible to reach entirely on the center, bias exists all the time, and revolute also has all the time Two, mechanical failure caused by bias also exists all the time, simply the problem of damage weight.Second, by increasing between guide rail mating surface Gap removes the constraint in upper shackle to rotary motion, this method be equally possible to when clamping by gap eat up from It is and ineffective.
The content of the invention
It is an object of the invention to provide guide rail is clamped under a kind of iron driller impact tong with hard and soft transfer characteristic, solve existing There is structure present in technology to cross orientation problem, and eliminate extruding, wear problem caused by mechanical movement, add anvil The reliability of work and service life.
The technical solution adopted in the present invention is to clamp guide rail under a kind of iron driller impact tong with hard and soft transfer characteristic, The lower pincers guide rail be semicircular configuration from top to bottom, including upper end lead ring and lower end lead ring, upper end lead ring by flexible rubber and Lower end lead ring is connected as semiorbicular one, i.e. upper end lead ring is sulfided by flexible rubber and lower end lead ring, above-mentioned Three parts form lower pincers rail body together;
In the right and left of lower pincers rail body, upper end lead ring, flexible rubber and lower end lead ring vertically bore jointly There is a via, altogether two vias, a set of piston rod Hard link mechanism is provided with each via;
The structure for often covering piston rod Hard link mechanism is to be respectively fitted with upper piston, piston from top to down in the vias Bar and lower piston, the upper port of upper end lead ring have along the upper piston chamber for being fixed with upper piston, the upper piston chamber external connection Upper end hydraulic fluid port, for the lower port of lower end lead ring along the lower piston chamber for being fixed with lower piston, lower piston chamber external connection has lower end oily Mouthful.
The present invention's has hard and soft transfer characteristic iron driller impact tong guide rail, is further characterized in that:
Described via and piston rod Hard link mechanism is at least correspondingly arranged 2 sets.
The uppermost position in fig-ure progress that described upper piston chamber is used for upper piston is spacing, and lower piston chamber is used for lower piston Lowermost position put carry out it is spacing.
Diametrically section is T-shaped shape to described upper piston, and T-shaped convex shoulder is cylindrical to be provided with one with via inwall contact surface Individual sealing ring, under the thin axial direction of upper piston with piston rod apical grafting.
Described lower piston is cylindrical to be provided with another sealing ring with via inwall contact surface, lower piston upwards with work Stopper rod apical grafting.
The invention has the advantages that on iron driller in button and the course of work of shackle, pass through the hard and soft characteristic of uniqueness Lower pincers guide rail structure design, is divided into upper and lower ends, middle part uses block rubber by the rigidity guide rail clamped under existing iron driller Connection, the top and the bottom of such guide rail are flexible guide rail;There is the piston connection that fluid power acts on the longitudinal direction of upper and lower side guide rail simultaneously, needs When to want guide rail be rigidity, upper and lower side guide rail consolidation is integrated, it is necessary to during guide rail flexibility by piston rod, and piston rod, which unclamps upper and lower side, leads Rail.Flexible guide rail pattern is used so in upper shackle, decontrols guide rail constraint, upper pincers surround drilling rod central rotation, were not present Positioning;When upper pincers reset, using rigidity guide rail pattern, now upper pincers release drilling rod, decontrols the constraint of drilling rod center, upper pincers guide rail edge Zhe Xiaqian guideway centreline resets, and does not also fill in underconstrained problem.Led as can be seen that the guide rail of lower pincers is changed using hard and soft characteristic variable Rail design, eliminate at present due in upper shackle it is existing cross positioning phenomenon, add iron driller impact tong reliability and Service life.
Brief description of the drawings
Fig. 1 is the structural representation (top view) of the present invention;
Fig. 2 is the Section A-A schematic diagram in Fig. 1 (piston rod is in neutral position);
Fig. 3 is the schematic cross-section that the present invention is in flexible guide rail pattern (piston rod is put in lowermost position);
Fig. 4 is the schematic cross-section that the present invention is in rigid guideway pattern (piston rod is in uppermost position in fig-ure).
In figure, 1. upper end hydraulic fluid ports, 2. upper end lead rings, 3. flexible rubbers, 4. lower end lead rings, 5. lower end hydraulic fluid ports, 6. tops are lived Plug, 7. piston rods, 8. lower pistons, 9. times pincers guide rails.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Reference picture 1, Fig. 2, structure of the invention be, the lower pincers guide rail 9 is semicircular configuration from top to bottom, including upper end is led Ring 2 and lower end lead ring 4, upper end lead ring 2 are connected as semiorbicular one, i.e. upper end lead ring by flexible rubber 3 and lower end lead ring 4 2 are sulfided by flexible rubber 3 and lower end lead ring 4, and above-mentioned three parts form the lower main body of pincers guide rail 9 together;
In the right and left of the lower pincers main body of guide rail 9, (on the direction of upper end lead ring 2 and the plane of lower end lead ring 4) Upper end lead ring 2, flexible rubber 3 and lower end lead ring 4 be common to be vertically drilled with a via (Fig. 1 embodiments two mistakes altogether Hole), a set of piston rod Hard link mechanism is provided with each via;
The structure for often covering piston rod Hard link mechanism is to be respectively fitted with upper piston 6, piston from top to down in the vias Bar 7 and lower piston 8, the upper port of upper end lead ring 2 externally connect along the upper piston chamber for being fixed with upper piston 6, the upper piston chamber Upper end hydraulic fluid port 1 is connected to, the lower port of lower end lead ring 4 has along the lower piston chamber for being fixed with lower piston 8, lower piston chamber external connection Lower end hydraulic fluid port 5, above-mentioned part are collectively referred to as piston rod Hard link mechanism (Fig. 1 embodiments two sets of pistons altogether of lower pincers guide rail 9 Bar Hard link mechanism).
The uppermost position in fig-ure progress that upper piston chamber is used for upper piston 6 is spacing, and lower piston chamber is used for lower piston 8 most Lower position carries out spacing.
It can also be linked together between upper end lead ring 2 and lower end lead ring 4 from other flexible materials.
Via and piston rod Hard link mechanism are at least correspondingly arranged 2 sets.
Diametrically section is T-shaped shape to upper piston 6, T-shaped convex shoulder is cylindrical be provided with via inwall contact surface one it is close Seal, under the thin axial direction of upper piston 6 with the apical grafting of piston rod 7.
Lower piston 8 is cylindrical to be again provided with another sealing ring with via inwall contact surface, lower piston 8 upwards with work The apical grafting of stopper rod 7.
The present invention operation principle be,
Lower end lead ring 4 in lower pincers guide rail 9 is connected under impact tong on pincers panel and the guide rail with being clamped on impact tong is same The heart, upper pincers guide rail inner side and the outside of upper end lead ring 2 of the lower pincers guide rail 9 coordinate rotation,
1) as shown in figure 3, when linking closely or releasing, the topping up of upper end hydraulic fluid port 1 is given, hydraulic coupling promotes upper piston 6, piston rod 7 and lower piston 8 move downwardly together, piston rod 7 exit completely upper end lead ring 2 endoporus enter lower end lead ring 4 endoporus in; At this moment, because piston rod 7 is completely into lower end lead ring 4, and simply contacted between upper piston 6 and piston rod 7, upper piston 6 and piston rod 7 can not rigidity positions in the horizontal direction by upper end lead ring 2 and lower end lead ring 4, therefore, upper end lead ring 2 and lower end Fully rely on flexible rubber 3 between lead ring 4 to connect, the two can be moved relative flexibility in the horizontal direction, and so entirely lower pincers are led Rail 9 is essentially become as flexible guide rail, and equivalent to this revolute of guideway centreline is eliminated, upper pincers simply revolve around drilling rod center Turn, crossing when eliminating shackle on impact tong positions.
2) as shown in figure 4, being resetted when upper button or after the completion of releasing, it is necessary to unclamp drilling rod to upper pincers, now, to lower end hydraulic fluid port 5 topping ups, hydraulic coupling promote lower piston 8, piston rod 7 and upper piston 6 to move upwardly together, and the top of piston rod 7 enters upper end In the endoporus of lead ring 2, while the bottom of piston rod 7 is also in the endoporus of lower end lead ring 4;So, upper end lead ring 2 and lower end lead ring 4 Not only connected by flexible rubber 3, the piston rod 7 in the via of left and right two also functions to the effect for the pin that is rigidly connected, by upper end lead ring 2 Movement with the horizontal direction of lower end lead ring 4 is entirely limited;At this moment, pincers unclamp drilling rod on when being resetted due to upper pincers, lose around brill The revolute pair that bar rotates, upper pincers only rotate by revolute pair of the rigid guideway around lower pincers, the reset clamped in realization;So only One rotational restraint, also it is not present and owes positioning.
The present invention iron driller impact tong under pincers guide rail there is hard and soft transfer characteristic, mainly on iron driller pincers on shackle and During resetting two kinds of working conditions, by changing the characteristic of guide rail, realize increase or eliminate revolute caused by guide rail, protect In above two working condition, impact tong was not present positioning or owed positioning card;The present invention can be eliminated at present due to rigidity Positioning is rotated through caused by guide rail, so as to eliminate the equipment damages such as pincers tooth bursts apart, guide rail scratches, substantially increases making for equipment Use the life-span.

Claims (5)

1. clamp guide rail under a kind of iron driller impact tong with hard and soft transfer characteristic, it is characterised in that:The lower pincers guide rail (9) is from upper To it is lower be semicircular configuration, including upper end lead ring (2) and lower end lead ring (4), upper end lead ring (2) is by flexible rubber (3) with End lead ring (4) is connected as semiorbicular one, i.e. upper end lead ring (2) is vulcanized one by flexible rubber (3) and lower end lead ring (4) Rise, above-mentioned three parts form lower pincers guide rail (9) main body together;
In the right and left of lower pincers guide rail (9) main body, upper end lead ring (2), flexible rubber (3) are with lower end lead ring (4) jointly along perpendicular Nogata is to a via is drilled with, two vias altogether, and a set of piston rod Hard link mechanism is provided with each via;
The structure for often covering piston rod Hard link mechanism is to be respectively fitted with upper piston (6), piston rod from top to down in the vias (7) and lower piston (8), the upper port edge of upper end lead ring (2) are fixed with the upper piston chamber of upper piston (6), the upper piston chamber External connection has upper end hydraulic fluid port (1), and the lower port edge of lower end lead ring (4) is fixed with the lower piston chamber of lower piston (8), lower piston Chamber external connection has lower end hydraulic fluid port (5).
2. according to claim 1 have hard and soft transfer characteristic iron driller impact tong guide rail, it is characterised in that:Described mistake Hole and piston rod Hard link mechanism are at least correspondingly arranged 2 sets.
3. according to claim 1 have hard and soft transfer characteristic iron driller impact tong guide rail, it is characterised in that:Described is upper The uppermost position in fig-ure progress that plunger shaft is used for upper piston (6) is spacing, and lower piston chamber is used to put the lowermost position of lower piston (8) Carry out spacing.
4. according to claim 1 have hard and soft transfer characteristic iron driller impact tong guide rail, it is characterised in that:Described is upper Diametrically section is T-shaped shape to portion's piston (6), and T-shaped convex shoulder is cylindrical to be provided with a sealing ring, top with via inwall contact surface Under the thin axial direction of piston (6) with piston rod (7) apical grafting.
5. according to claim 1 have hard and soft transfer characteristic iron driller impact tong guide rail, it is characterised in that:Under described Portion's piston (8) is cylindrical to be provided with another sealing ring with via inwall contact surface, and lower piston (8) is pushed up with piston rod (7) upwards Connect.
CN201711000362.0A 2017-10-24 2017-10-24 Guide rail is clamped under a kind of iron driller impact tong with hard and soft transfer characteristic Active CN107514238B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007142535A1 (en) * 2006-06-09 2007-12-13 Aker Kvaerner Mh As Power tong
CN203796196U (en) * 2014-01-29 2014-08-27 上海久卓机电设备有限公司 Iron roughneck
CN106812481A (en) * 2017-02-22 2017-06-09 吉林大学 Iron driller cupboard button device
CA3008007A1 (en) * 2015-12-18 2017-06-22 Prostar Manufacturing Inc. Torque wrench
CN206429209U (en) * 2017-01-22 2017-08-22 西安兰石重工机械有限公司 It is installed on the elastic floating guide rail between iron roughneck main pincers and back-up tong

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007142535A1 (en) * 2006-06-09 2007-12-13 Aker Kvaerner Mh As Power tong
CN203796196U (en) * 2014-01-29 2014-08-27 上海久卓机电设备有限公司 Iron roughneck
CA3008007A1 (en) * 2015-12-18 2017-06-22 Prostar Manufacturing Inc. Torque wrench
CN206429209U (en) * 2017-01-22 2017-08-22 西安兰石重工机械有限公司 It is installed on the elastic floating guide rail between iron roughneck main pincers and back-up tong
CN106812481A (en) * 2017-02-22 2017-06-09 吉林大学 Iron driller cupboard button device

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Effective date of registration: 20210107

Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province

Patentee after: Baoji Oilfield Machinery Co.,Ltd.

Patentee after: CHINA NATIONAL PETROLEUM Corp.

Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd

Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province

Patentee before: Baoji Oilfield Machinery Co.,Ltd.