CN112377123A - Righting device and method with auxiliary shackle function - Google Patents
Righting device and method with auxiliary shackle function Download PDFInfo
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- CN112377123A CN112377123A CN202011186131.5A CN202011186131A CN112377123A CN 112377123 A CN112377123 A CN 112377123A CN 202011186131 A CN202011186131 A CN 202011186131A CN 112377123 A CN112377123 A CN 112377123A
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- shaft sleeve
- clamping
- inner shaft
- shackle
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
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Abstract
本发明公开一种具有辅助卸扣功能的扶正装置及方法，包括安装座、扶正夹紧单元、卸扣油缸以及油缸支座，卸扣油缸分别与扶正夹紧单元和油缸支座铰接；扶正夹紧单元包括第一内轴套、夹紧轴套和第二内轴套以及多个滚轴；第二内轴套设有多个能与第一内轴套固定连接的弧形板，弧形板沿周向间隔布设且相邻弧形板间设置滚轴以能扶正或夹紧钻杆；夹紧轴套套在滚轴和弧形板外且在夹紧轴套内壁设有多个沿周向布设且与滚轴一一对应的平面凸起；卸扣油缸的伸缩能带动夹紧轴套旋转使平面凸起挤压滚轴径向聚集从而夹紧钻杆提供反转扭矩实现卸扣，卸扣后钻杆反转，滚轴松开钻杆，卸扣油缸缩回复位。本发明夹紧及松开钻杆均自动实现，操作简单，提高了卸扣效率。
The invention discloses a centering device and method with an auxiliary shackle function, comprising a mounting seat, a centering and clamping unit, a shackle oil cylinder and an oil cylinder support. The tightening unit includes a first inner shaft sleeve, a clamping shaft sleeve, a second inner shaft sleeve and a plurality of rollers; the second inner shaft sleeve is provided with a plurality of arc-shaped plates that can be fixedly connected with the first inner shaft sleeve, and the arc-shaped The plates are arranged at intervals in the circumferential direction, and rollers are arranged between adjacent arc-shaped plates to be able to centralize or clamp the drill rod; the clamping sleeve is sleeved outside the roller and the arc-shaped plate, and the inner wall of the clamping sleeve is provided with a plurality of circumferential It protrudes to the plane that is laid out and corresponds to the roller one-to-one; the expansion and contraction of the shackle cylinder can drive the clamping sleeve to rotate, so that the plane protrusion squeezes the roller to radially gather, so as to clamp the drill rod and provide reverse torque to realize the shackle. After the shackle, the drill pipe is reversed, the rollers loosen the drill pipe, and the shackle cylinder retracts and returns to its original position. In the invention, both the clamping and the loosening of the drill rod are automatically realized, the operation is simple, and the shattering efficiency is improved.
Description
Technical Field
The invention belongs to the field of drilling equipment, and particularly relates to a centralizing device with an auxiliary shackle function and a centralizing method.
Background
In the drilling process, the screw thread of the drill rod needs to be frequently loosened, particularly, when a drill hole is deep, one-time tripping is completed, hundreds of times of tripping are needed alternately, and the tripping efficiency is directly influenced by the tripping method and the auxiliary time of the drilling machine. At present, two common thread loosening modes are mainly adopted, namely power head reverse rotation thread loosening and thread loosening device thread loosening.
The reverse-rotation shackle mode of the power head is mostly used on a drilling machine with a clamp linkage function, and the operation steps of the power head are that the power head lifts a drill rod, reversely rotates the shackle, removes the drill rod and loosens the drill rod to enter the next cycle. This process operation is simple, and the efficiency of pulling out is higher, but because the general forward torque of rig is the same with the reversal torque, often can appear the drilling rod after fastening, the unit head reversal is difficult to accomplish the shackle, generally needs artifical supplementary shackle, with the tight drilling rod of chain clamp, when the unit head reversal, the manpower increases a reversal torque pine and detains. Or when the power head rotates reversely, the hammer is used for knocking the drill rod, and the screw thread of the drill rod is loosened through the simultaneous action of vibration and reverse torque.
The method is characterized in that the shackle device is arranged between a drill clamp and a power head, and the shackle device is used for clamping and providing reverse torque to loosen a drill rod screw thread. The operation steps are that a drill rod is lifted, a clamp clamps the drill rod, a shackler clamps the drill rod, the shackler loosens, a power head reverses and shackles, the drill rod is removed to enter the next circulation, and the shackler cannot rotate reversely and shackles simultaneously because the shackler cannot realize automatic loosening of the drill rod after shackles are loosened, and the shackler can only be used independently. This requires a sufficiently large shackle clamping force and shackle torque, resulting in a large shackle structure size, which increases overall machine weight and structure size. Moreover, as the number of the steps of shackle operation is large in the process of shackle operation, the shackle device, the clamp and the power head need to be operated frequently, the auxiliary time is increased, and the drilling efficiency is reduced.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a centralizing device with an auxiliary shackle function and a centralizing method, and aims to solve the problems that in the prior art, the success rate of reverse shackle of a power head is low, the labor intensity of manual assistance is high, danger exists in the operation process, the volume and weight of a shackle are large, and the shackle efficiency is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
a centralizing device with an auxiliary shackle function comprises a mounting seat, a centralizing clamping unit arranged between two side plates of the mounting seat, a shackle oil cylinder vertically arranged on one side of the centralizing clamping unit and an oil cylinder support;
the righting and clamping unit comprises a first inner shaft sleeve, a clamping shaft sleeve, a second inner shaft sleeve and a plurality of rolling shafts which are coaxially arranged; the inner wall of the second inner shaft sleeve is provided with an annular boss, the annular boss is provided with a plurality of arc-shaped plates, the arc-shaped plates are distributed at intervals along the circumferential direction, the cylinder shape where the arc-shaped plates are located is coaxial with the second inner shaft sleeve, and the first inner shaft sleeve can be fixedly connected with the end part of the arc-shaped plate; each rolling shaft is positioned between the adjacent arc-shaped plates, and two ends of each rolling shaft are arranged on the annular boss on the inner wall of the first inner shaft sleeve and the annular boss on the inner wall of the second inner shaft sleeve and can move along the radial direction of the first inner shaft sleeve and the second inner shaft sleeve; the clamping shaft sleeve is sleeved outside the rolling shaft and the arc-shaped plate, two ends of the clamping shaft sleeve are respectively rotatably installed with the first inner shaft sleeve and the second inner shaft sleeve, and a plurality of plane bulges which are distributed along the circumferential direction and correspond to the rolling shaft one by one are arranged on the inner wall of the clamping shaft sleeve;
a cylinder rod of the shackle oil cylinder is hinged with the righting clamping unit, a cylinder barrel of the shackle oil cylinder is hinged with an oil cylinder support, and the oil cylinder support is arranged below the mounting seat; the stretching of the shackle oil cylinder can drive the centralizing and clamping unit to rotate along the central shaft of the centralizing and clamping unit.
The invention also comprises the following technical characteristics:
specifically, the mounting seat comprises a bottom plate and two side plates, the two side plates are parallel and opposite and are vertically mounted on the bottom plate, the two side plates are respectively a first side plate and a second side plate, and round holes are formed in the first side plate and the second side plate and correspond to the round holes;
the first inner shaft sleeve comprises a first inner shaft sleeve body, a first inner shaft sleeve mounting ring and a first inner shaft sleeve clamping ring, wherein the first inner shaft sleeve mounting ring and the first inner shaft sleeve clamping ring are arranged on two sides of the first inner shaft sleeve body;
the inner wall of the clamping shaft sleeve is sequentially provided with a first annular inner wall, a clamping inner wall and a second annular inner wall along the axial direction, and the clamping inner wall is provided with a plurality of plane bulges which are distributed in the circumferential direction;
the second inner shaft sleeve comprises a second inner shaft sleeve body, a second inner shaft sleeve mounting ring and a second inner shaft sleeve clamping ring which are arranged on two sides of the second inner shaft sleeve body, and a plurality of arc-shaped plates arranged on an annular boss on the inner wall of the second inner shaft sleeve clamping ring.
Specifically, the first inner shaft sleeve mounting ring is rotatably mounted in a circular hole in the first side plate, the first annular inner wall is rotatably sleeved on the first inner shaft sleeve clamping ring, the second annular inner wall is rotatably sleeved on the second inner shaft sleeve clamping ring, and the second inner shaft sleeve mounting ring is rotatably mounted in a circular hole in the second side plate.
Specifically, a stop mechanism is arranged between the first inner shaft sleeve mounting ring and the first side plate; a through hole along the radial direction of the round hole of the first side plate is arranged on the first side plate, and a groove opposite to the through hole is arranged on the first inner shaft sleeve mounting ring;
the stopping mechanism comprises a plug, a compression spring and a stopping ball which are sequentially arranged in the through hole from outside to inside; when the groove is opposite to the through hole, the stop ball can be limited in the groove; when the groove and the through hole are staggered when the first inner shaft sleeve rotates, the stop ball is extruded to the compression spring to be contracted, and the stop ball and the compression spring are both moved into the through hole.
Specifically, when the drill rod normally drills, the drill rod rotates forwards, the drill rod rotates in the first inner shaft sleeve and the second inner shaft sleeve, and the rolling shaft plays a role in righting the drill rod; at the moment, the shackle oil cylinder does not extend out of the cylinder rod, the groove is opposite to the through hole, the stop ball is limited in the groove to ensure that the first inner shaft sleeve and the clamping shaft sleeve do not generate relative movement, and the roller is in loose fit with the drill rod at the moment.
Specifically, the outer wall of the first inner shaft sleeve body is provided with a first stop block, the outer wall of the clamping shaft sleeve is provided with a second stop block, and the second stop block extends to the outer wall of the first inner shaft sleeve body to be adjacent to the first stop block; when the clamping shaft sleeve rotates clockwise relative to the first inner shaft sleeve, the second stop block can push the first stop block.
Specifically, the bottom plate of the mounting seat can be fixed on the body of the drilling machine; the oil cylinder support can be fixed on the side wall of the drilling machine body below the mounting seat.
Specifically, the arc-shaped plates are arranged at equal intervals along the circumferential direction, and the corresponding rolling shafts and the plane protrusions are respectively arranged at equal intervals.
A method for righting and assisting in breaking out of a righting device with an assisting in breaking out function is characterized in that the righting device with the assisting in breaking out function is arranged between a power head and a clamp holder, when the power head rotates forwards, a drill rod rotates among rolling shafts, and the rolling shafts play a role in righting the drill rod; when the power head reversely rotates to shackle, the shackle oil cylinder extends out, the clamping shaft sleeve rotates anticlockwise, the plane in the clamping shaft sleeve protrudes and extrudes the corresponding rolling shaft, the rolling shaft clamps the drill rod, the clamping shaft sleeve continues to rotate anticlockwise to provide extra reverse torque for the drill rod, and the power head is assisted to complete shackle; when the screw thread of the drill rod is loosened, the drill rod rotates reversely, the roller automatically loosens the drill rod, and the shackling oil cylinder retracts to automatically drive the righting device to reset.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention has the advantages that the centering and shackle-releasing functions are added by optimally designing the drilling machine centering device, and the centering and shackle-releasing unit only adds a part of reversal torque for the power head reversal shackle, so the structure size and the weight of the drilling machine are smaller, the centering device automatically realizes the clamping and the loosening of the drill rod without manual intervention, the shackle operation is simple, the labor intensity of workers is reduced, the safety in the shackle-releasing process is improved, the shackle auxiliary time is shortened, and the shackle efficiency is improved.
Drawings
FIG. 1 is a schematic view of the installation of the centralizing device with auxiliary shackle function according to the present invention;
figure 2 is an isometric view of a centralizing device with an auxiliary break-out function according to the invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is an exploded view of the centralizer of the present invention;
FIG. 5 is a view of the locking structure of the first inner sleeve and the mounting base of the present invention;
FIG. 6 is a schematic view of a clamping shackle of the present invention;
fig. 7 is a schematic diagram of the resetting process of the centering device of the present invention.
The reference numerals have the meanings given below:
1. the device comprises a mounting base, 2, a righting clamping unit, 3, a shackle oil cylinder, 4, an oil cylinder support, 5, a stop mechanism, 6, a power head, 7, a drill rod, 8, a clamp holder, 9, a drilling machine body and 10, a righting device;
11. the bottom plate, 12. the first side plate, 13. the second side plate;
21. the first inner shaft sleeve 211, the first stop block 22, the clamping shaft sleeve 221, the plane bulge 222, the second stop block 23, the second inner shaft sleeve 231, the arc-shaped plate 24 and the roller;
51. plug, 52, compression spring, 53, stop ball.
The invention is described in detail below with reference to the drawings and the detailed description.
Detailed Description
The present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention fall within the protection scope of the present invention. The present invention will be described in further detail with reference to examples.
Example 1:
as shown in fig. 1 to 7, the present embodiment provides a centralizing device with an auxiliary shackle function, which includes a mounting base 1, a centralizing clamping unit 2 disposed between two side plates of the mounting base 1, a shackle cylinder 3 vertically disposed on one side of the centralizing clamping unit 2, and a cylinder support 4.
The centralizing clamping unit 2 comprises a first inner shaft sleeve 21, a clamping shaft sleeve 22, a second inner shaft sleeve 23 and a plurality of rollers 24 which are coaxially arranged; an annular boss is arranged on the inner wall of the second inner shaft sleeve 23, a plurality of arc-shaped plates 231 are arranged on the annular boss, the arc-shaped plates 231 are arranged at intervals along the circumferential direction, the cylinder shape where the arc-shaped plates 231 are located is coaxial with the second inner shaft sleeve 23, and the first inner shaft sleeve 21 can be fixedly connected with the end part of the arc-shaped plate 231; each roller 24 is positioned between the adjacent arc-shaped plates 231, two ends of each roller 24 are arranged on an annular boss on the inner wall of the first inner shaft sleeve 21 and an annular boss on the inner wall of the second inner shaft sleeve 23 and can move along the radial direction of the first inner shaft sleeve 21 and the second inner shaft sleeve 23, the roller 24 moves to be close to the rotation center of the drill rod to clamp the drill rod, and the drill rod is released far away from the rotation center of the drill rod; the clamping shaft sleeve 22 is sleeved outside the roller 24 and the arc-shaped plate 231, two ends of the clamping shaft sleeve 22 are rotatably mounted with the first inner shaft sleeve 21 and the second inner shaft sleeve 23 respectively, a plurality of plane protrusions 221 which are distributed along the circumferential direction and correspond to the rollers 231 one by one are arranged on the inner wall of the clamping shaft sleeve 22, namely, the clamping shaft sleeve 22 adopts a ratchet structure, the first inner shaft sleeve 21 and the clamping shaft sleeve 22 rotate anticlockwise and relatively, the ratchet compresses the roller 24, the first inner shaft sleeve 21 and the clamping shaft sleeve 22 rotate clockwise and relatively, and the ratchet loosens the roller 24.
A cylinder rod of the shackle oil cylinder 3 is hinged with the righting clamping unit 2, a cylinder barrel of the shackle oil cylinder 3 is hinged with an oil cylinder support 4, and the oil cylinder support 4 is arranged below the mounting seat 1; the expansion of the shackle oil cylinder 3 can drive the centralizing and clamping unit 2 to rotate along the self central shaft.
According to the technical scheme, fig. 1 is an installation schematic diagram of the centering device 10 in the embodiment, the power head 6 and the centering device 10 are both installed on the body 9 of the drilling machine, the power head 6 is connected with the drill rod 7 to be broken, the drill rod 7 to be broken passes through the centering device 10, and the clamp holder 8 clamps the drill rod connected with the drill rod 7 to be broken. When the drill rod rotates forwards, the drill rod rotates in the first inner shaft sleeve and the second inner shaft sleeve, the rolling shaft plays a role in centering the drill rod, and the stopping ball is arranged between the first inner shaft sleeve and the mounting seat, so that the first inner shaft sleeve and the clamping shaft sleeve are ensured not to move relatively in the process of forward rotation of the drill rod, and the rolling shaft is in loose fit with the drill rod; when the drill rod is broken out, if the power head can not realize breaking out through reverse rotation, the breaking-out oil cylinder extends out, the clamping shaft sleeve rotates anticlockwise, the plane bulge in the clamping shaft sleeve extrudes the corresponding rolling shaft, the rolling shaft clamps the drill rod, the clamping shaft sleeve continues to rotate anticlockwise to provide extra reverse torque for the drill rod, and the power head is assisted to finish breaking out; when the drill rod is loosened, the drill rod and the roller move relatively, the roller loosens the drill rod, the shackle oil cylinder retracts, and the clamping shaft sleeve and the first inner shaft sleeve are driven to reset.
In this embodiment, the mounting base 1 includes a bottom plate 11 and two side plates, the two side plates are parallel and opposite and are both vertically mounted on the bottom plate 1, the two side plates are respectively a first side plate 12 and a second side plate 13, and the first side plate 12 and the second side plate 13 are both provided with round holes and the two round holes correspond to each other; the first inner shaft sleeve 21 comprises a first inner shaft sleeve body, a first inner shaft sleeve mounting ring and a first inner shaft sleeve clamping ring which are arranged on two sides of the first inner shaft sleeve body; the inner wall of the clamping shaft sleeve 22 is sequentially provided with a first annular inner wall, a clamping inner wall and a second annular inner wall along the axial direction, and the clamping inner wall is provided with a plurality of plane bulges 221 distributed in the circumferential direction; the second inner sleeve 23 includes a second inner sleeve body, a second inner sleeve mounting ring and a second inner sleeve clamping ring disposed on both sides of the second inner sleeve body, and a plurality of arc-shaped plates 231 disposed on annular bosses on an inner wall of the second inner sleeve clamping ring.
The mounting means of mount pad 1, first interior axle sleeve 21, clamp shaft sleeve 22 and axle sleeve 23 in the second is: the first inner shaft sleeve mounting ring is rotatably arranged in a circular hole on the first side plate 12, the first annular inner wall is rotatably sleeved on the first inner shaft sleeve clamping ring, the second annular inner wall is rotatably sleeved on the second inner shaft sleeve clamping ring, and the second inner shaft sleeve mounting ring is rotatably arranged in a circular hole on the second side plate 13.
In the embodiment, a stop mechanism 5 is arranged between the first inner bushing mounting ring and the first side plate 12; a through hole along the radial direction of the round hole of the first side plate 12 is arranged on the first side plate, and a groove opposite to the through hole is arranged on the first inner shaft sleeve mounting ring; as shown in fig. 5, the stopper mechanism 5 includes a plug 51, a pressing spring 52 and a stopper ball 53 which are sequentially disposed in the through hole from the outside to the inside; when the groove is opposite to the through hole, the stop ball 53 can be limited in the groove; when the groove and the through hole are dislocated when the first inner sleeve 21 rotates, the stop ball 53 is pressed until the pressing spring 52 contracts, and then both the stop ball 53 and the pressing spring 52 move into the through hole. The stopping ball 53 can lock the installation position of the first inner shaft sleeve 21 and the installation seat 1 to prevent the drill rod 7 from driving the drill rod 7 to rotate relatively between the first inner shaft sleeve 21 and the installation seat 1, the centralizing device clamps the drill rod to realize functional locking under the action of small external force, when the shackle oil cylinder provides large reverse torque, the external force is greater than a set value, the stopping ball 53 compresses the compression spring 52, and the hinged position of the first inner shaft sleeve 21 and the installation seat 1 is unlocked.
When the drill rod normally drills, the drill rod rotates forwards, the drill rod rotates in the first inner shaft sleeve 21 and the second inner shaft sleeve 23, and the rolling shaft 24 plays a role in righting the drill rod; at this time, the shackle cylinder 3 does not extend out of the cylinder rod, the groove is opposite to the through hole, the stop ball 53 is limited in the groove to ensure that the first inner shaft sleeve 21 and the clamping shaft sleeve 22 do not generate relative movement, and the roller 24 is loosely matched with the drill rod at this time. In this embodiment, there are two sets of stop mechanisms, and the two sets of stop mechanisms are oppositely arranged.
The outer wall of the first inner shaft sleeve body is provided with a first stop block 211, the outer wall of the clamping shaft sleeve 22 is provided with a second stop block 222, and the second stop block 222 extends to the outer wall of the first inner shaft sleeve body to be adjacent to the first stop block 211; the second stopper 222 can push the first stopper 211 when the clamping sleeve 22 rotates clockwise with respect to the first inner sleeve 21. The first stop block 211 and the second stop block 222 are used for limiting the rotation angle of the drill rod loosening opening driving the first inner shaft sleeve 21 relative to the mounting base 1, and the second stop block is used for driving the first inner shaft sleeve 21 to reset when the shackle oil cylinder resets.
The bottom plate 11 of the mounting seat 1 can be fixed on the body of the drilling machine; the oil cylinder support 4 can be fixed on the side wall of the drilling machine body below the mounting seat 1. In this embodiment, the shackle cylinder 3 is hinged to the cylinder support 4 by a pin shaft, and the pin shaft is mounted on the cylinder support 4 by a gland and a bolt, and an elastic pad is arranged at the mounting position of the bolt. In addition, the outer wall of the clamping shaft sleeve 22 is provided with an ear seat, and the ear seat is hinged with the cylinder rod of the shackle cylinder 3 through a pin shaft.
The arc plates 231 are arranged at equal intervals along the circumferential direction, and the corresponding rollers 24 and the plane protrusions 221 are respectively arranged at equal intervals so as to better centralize the drill rod or provide reverse torque for the drill rod. In the present embodiment, 4 rollers 24, 4 arc plates 231, and 4 plane protrusions 221 are provided, respectively; in other embodiments, other numbers of rollers 24, arc-shaped plates 231 and plane protrusions 221 may be provided according to actual needs, and all that can be achieved is to adopt the rollers 24 to centralize the drill rod 7 or the rollers 24 and the plane protrusions 221 cooperate to provide the reverse torque for the drill rod 7.
In this embodiment, the first inner sleeve 21 is fixedly connected to the end of the arc plate 231 by a bolt.
As shown in fig. 6, the principle of the grip shackle for this embodiment: in the normal drilling process of fig. 6(a), the roller and the drill rod are loosely matched, and the rotation of the drill rod can drive the roller to rotate, so that the drill rod is righted. And (b) the shackling oil cylinder extends out to push the clamping shaft sleeve to rotate relative to the first inner shaft sleeve, the plane bulge compresses the rolling shaft to clamp the drill rod, the oil cylinder continues to push the clamping shaft sleeve, the torque is increased, the stop ball compression spring is unlocked between the first inner shaft sleeve and the mounting seat, and the centering device clamps the auxiliary shackling of the drilling tool. More specifically, the second inner shaft sleeve is fixedly connected with the first inner shaft sleeve, a stop mechanism is designed on the first inner shaft sleeve (1.4) and the base, the second inner shaft sleeve is relatively static with the mounting seat, the clamping shaft sleeve is hinged with the second inner shaft sleeve, the shackle oil cylinder pushes the clamping shaft sleeve to rotate anticlockwise and relatively with the second inner shaft sleeve, the clamping shaft sleeve compresses the roller and the drill rod through a ratchet structure, when the force finally acting on the first inner shaft sleeve by the shackle oil cylinder is greater than the set value of the compression spring, the stop ball compresses the compression spring, the locking structure of the first inner shaft sleeve and the mounting seat fails, and the shackle oil cylinder pushes the centering clamping unit to clamp the drill rod and provide reverse torque, so that auxiliary shackle is realized.
As shown in fig. 7, the principle of the reset process of the centering device in this embodiment is as follows: fig. 7(a) the oil cylinder of breaking out stretches out, promote to right and press from both sides tight unit and press from both sides tight drilling rod and provide reverse moment of torsion, the while rig unit head anticlockwise reversal, after the drilling rod screw thread is unscrewed, the unit head drives the drilling rod anticlockwise reversal, press from both sides tight axle sleeve ratchet structure and loosen the roller bearing, the roller bearing loosens the drilling rod, press from both sides tight oil cylinder withdrawal after that, like fig. 7(b), it rotates clockwise to drive and press from both sides tight axle sleeve, it has the second dog to press from both sides tight axle sleeve cover design, first interior axle sleeve design has first dog, press from both sides tight axle sleeve clockwise rotation in-process, first dog is stirred to the second dog, drive first interior axle sleeve clockwise, when pressing.
Example 2:
the embodiment provides a method for righting a righting device with an auxiliary shackle function and an auxiliary shackle, wherein the righting device with the auxiliary shackle function in the embodiment 1 is arranged between a power head and a clamp holder, as shown in fig. 6 and 7, when the power head rotates forwards, a drill rod rotates among rollers, and the rollers play a role in righting the drill rod; when the power head reversely rotates to shackle, the shackle oil cylinder extends out, the clamping shaft sleeve rotates anticlockwise, the plane in the clamping shaft sleeve protrudes and extrudes the corresponding rolling shaft, the rolling shaft clamps the drill rod, the clamping shaft sleeve continues to rotate anticlockwise to provide extra reverse torque for the drill rod, and the power head is assisted to complete shackle; when the screw thread of the drill rod is loosened, the drill rod rotates reversely, the roller automatically loosens the drill rod, and the shackling oil cylinder retracts to automatically drive the righting device to reset. The method can apply extra reverse torque on the drill rod in the process of reversing the power head, and a part of reverse torque is additionally added when the centralizing shackle unit is only used for reversing the shackle of the power head, so the structure is compact, the volume is small, and the weight is light; meanwhile, the righting device clamps and loosens the drill rod automatically by adopting a ratchet structure, manual intervention is not needed, the shackle process is simple, time and labor are saved, the labor intensity of workers is reduced, the safety in the shackle process is improved, the shackle auxiliary time is shortened, and the shackle efficiency is improved.
Claims (9)
1. A centralizing device with an auxiliary shackle function is characterized by comprising a mounting seat (1), a centralizing clamping unit (2) arranged between two side plates of the mounting seat (1), a shackle oil cylinder (3) vertically arranged on one side of the centralizing clamping unit (2) and an oil cylinder support (4);
the centralizing and clamping unit (2) comprises a first inner shaft sleeve (21), a clamping shaft sleeve (22), a second inner shaft sleeve (23) and a plurality of rollers (24), which are coaxially arranged; an annular boss is arranged on the inner wall of the second inner shaft sleeve (23), a plurality of arc-shaped plates (231) are arranged on the annular boss, the arc-shaped plates (231) are arranged at intervals along the circumferential direction, the cylinder shape where the arc-shaped plates (231) are located is coaxial with the second inner shaft sleeve (23), and the first inner shaft sleeve (21) can be fixedly connected with the end parts of the arc-shaped plates (231); each roller (24) is positioned between the adjacent arc-shaped plates (231), and two ends of each roller (24) are arranged on an annular boss on the inner wall of the first inner shaft sleeve (21) and an annular boss on the inner wall of the second inner shaft sleeve (23) and can move along the radial direction of the first inner shaft sleeve (21) and the second inner shaft sleeve (23); the clamping shaft sleeve (22) is sleeved outside the rolling shaft (24) and the arc-shaped plate (231), two ends of the clamping shaft sleeve (22) are rotatably mounted with the first inner shaft sleeve (21) and the second inner shaft sleeve (23) respectively, and a plurality of plane protrusions (221) which are distributed along the circumferential direction and correspond to the rolling shaft (231) one by one are arranged on the inner wall of the clamping shaft sleeve (22);
a cylinder rod of the shackle oil cylinder (3) is hinged with the straightening clamping unit (2), a cylinder barrel of the shackle oil cylinder (3) is hinged with an oil cylinder support (4), and the oil cylinder support (4) is arranged below the mounting seat (1); the stretching of the shackle oil cylinder (3) can drive the centralizing clamping unit (2) to rotate along the self central shaft.
2. The centralizer with auxiliary shackle function according to claim 1, characterized in that the mounting seat (1) comprises a bottom plate (11) and two side plates, which are parallel and opposite and are vertically mounted on the bottom plate (1), the two side plates are respectively a first side plate (12) and a second side plate (13), and circular holes are provided on the first side plate (12) and the second side plate (13) and correspond to each other;
the first inner shaft sleeve (21) comprises a first inner shaft sleeve body, a first inner shaft sleeve mounting ring and a first inner shaft sleeve clamping ring, wherein the first inner shaft sleeve mounting ring and the first inner shaft sleeve clamping ring are arranged on two sides of the first inner shaft sleeve body;
the inner wall of the clamping shaft sleeve (22) is sequentially provided with a first annular inner wall, a clamping inner wall and a second annular inner wall along the axial direction, and the clamping inner wall is provided with a plurality of plane bulges (221) distributed in the circumferential direction;
the second inner shaft sleeve (23) comprises a second inner shaft sleeve body, a second inner shaft sleeve mounting ring and a second inner shaft sleeve clamping ring which are arranged on two sides of the second inner shaft sleeve body, and a plurality of arc-shaped plates (231) which are arranged on an annular boss on the inner wall of the second inner shaft sleeve clamping ring.
3. A centralizer having an auxiliary shackle function as claimed in claim 2, characterised in that the first inner sleeve mounting ring is rotatably mounted in a circular hole in the first side plate (12), the first annular inner wall is rotatably fitted over the first inner sleeve clamping ring, the second annular inner wall is rotatably fitted over the second inner sleeve clamping ring, and the second inner sleeve mounting ring is rotatably mounted in a circular hole in the second side plate (13).
4. A centralising apparatus for assisting shackle functionality, as claimed in claim 3, characterised in that a stop mechanism (5) is provided between the first inner collar mounting ring and the first side plate (12); a through hole along the radial direction of the round hole of the first side plate (12) is arranged on the first side plate, and a groove opposite to the through hole is arranged on the first inner shaft sleeve mounting ring;
the stopping mechanism (5) comprises a plug (51), a compression spring (52) and a stopping ball (53) which are arranged in the through hole from outside to inside in sequence; when the groove is opposite to the through hole, the stop ball (53) can be limited in the groove; when the groove and the through hole are dislocated when the first inner shaft sleeve (21) rotates, the stop ball (53) is extruded to the compression spring (52) to be contracted, and then the stop ball (53) and the compression spring (52) move into the through hole.
5. The centralizing device with auxiliary shackle function as claimed in claim 4, characterized in that, when drilling normally, the drill rod rotates forward, the drill rod rotates in the first inner bushing (21) and the second inner bushing (23), the rollers (24) play a role in centralizing the drill rod; at the moment, the shackle oil cylinder (3) does not extend out of the cylinder rod, the groove is opposite to the through hole, the stop ball (53) is limited in the groove to ensure that the first inner shaft sleeve (21) and the clamping shaft sleeve (22) do not generate relative movement, and the roller (24) is loosely matched with the drill rod at the moment.
6. The centralizing device with auxiliary shackle function according to claim 2, c h a r a c t e r i z e d in that the first inner bushing body outer wall is provided with a first stop (211), the outer wall of the clamping bushing (22) is provided with a second stop (222) and the second stop (222) extends to the first inner bushing body outer wall to be adjacent to the first stop (211); when the clamping sleeve (22) rotates clockwise relative to the first inner sleeve (21), the second stop block (222) can push the first stop block (211).
7. Centralizing device with auxiliary break-out function according to claim 2, characterized in that the bottom plate (11) of the mounting socket (1) can be fixed on the drilling machine body; the oil cylinder support (4) can be fixed on the side wall of the drilling machine body below the mounting seat (1).
8. The centralizer with auxiliary shackle function according to claim 1, characterised in that the curved plates (231) are circumferentially arranged at equal intervals, and the corresponding rollers (24) and planar projections (221) are respectively arranged at equal intervals.
9. A method for righting a righting device with an auxiliary shackle function and an auxiliary shackle is characterized in that the righting device with the auxiliary shackle function is arranged between a power head and a holder, when the power head rotates forwards, a drill rod rotates among rollers, and the plurality of rollers play a role in righting the drill rod; when the power head reversely rotates to shackle, the shackle oil cylinder extends out, the clamping shaft sleeve rotates anticlockwise, the plane in the clamping shaft sleeve protrudes and extrudes the corresponding rolling shaft, the rolling shaft clamps the drill rod, the clamping shaft sleeve continues to rotate anticlockwise to provide extra reverse torque for the drill rod, and the power head is assisted to complete shackle; when the screw thread of the drill rod is loosened, the drill rod rotates reversely, the roller automatically loosens the drill rod, and the shackling oil cylinder retracts to automatically drive the righting device to reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186131.5A CN112377123B (en) | 2020-10-30 | 2020-10-30 | Righting device and method with auxiliary shackle function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186131.5A CN112377123B (en) | 2020-10-30 | 2020-10-30 | Righting device and method with auxiliary shackle function |
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| Publication Number | Publication Date |
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| CN112377123A true CN112377123A (en) | 2021-02-19 |
| CN112377123B CN112377123B (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011186131.5A Active CN112377123B (en) | 2020-10-30 | 2020-10-30 | Righting device and method with auxiliary shackle function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738291A (en) * | 2021-08-20 | 2021-12-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground bidirectional rotating spiral drill rod, tripping device, loading and unloading system and method |
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| CN103410460A (en) * | 2013-08-05 | 2013-11-27 | 徐州徐工基础工程机械有限公司 | Unclamping device for underground tunnel drilling machine |
| US20160326816A1 (en) * | 2014-01-15 | 2016-11-10 | Chtc Jove Heavy Industry Company | Mechanism for twisting off drill rod |
| CN107083928A (en) * | 2016-02-12 | 2017-08-22 | 哈尼斯菲格技术公司 | For retaining the bit within the mechanism on explosion hole drill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001083935A1 (en) * | 2000-04-28 | 2001-11-08 | National Oilwell Norway As | Spinner device |
| CN202531059U (en) * | 2011-12-28 | 2012-11-14 | 中国石油天然气股份有限公司 | Pipe column pressure device |
| CN103410460A (en) * | 2013-08-05 | 2013-11-27 | 徐州徐工基础工程机械有限公司 | Unclamping device for underground tunnel drilling machine |
| US20160326816A1 (en) * | 2014-01-15 | 2016-11-10 | Chtc Jove Heavy Industry Company | Mechanism for twisting off drill rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113738291A (en) * | 2021-08-20 | 2021-12-03 | 中煤科工集团西安研究院有限公司 | Coal mine underground bidirectional rotating spiral drill rod, tripping device, loading and unloading system and method |
| CN113738291B (en) * | 2021-08-20 | 2024-02-09 | 中煤科工集团西安研究院有限公司 | Underground coal mine bidirectional rotary spiral drill rod, shackle device, loading and unloading system and method |
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|---|---|
| CN112377123B (en) | 2022-07-19 |
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