CN111021951A - Follow-up frame mounting structure of large triangular rotary drilling rig and mounting method of drill rod - Google Patents
Follow-up frame mounting structure of large triangular rotary drilling rig and mounting method of drill rod Download PDFInfo
- Publication number
- CN111021951A CN111021951A CN201911398123.4A CN201911398123A CN111021951A CN 111021951 A CN111021951 A CN 111021951A CN 201911398123 A CN201911398123 A CN 201911398123A CN 111021951 A CN111021951 A CN 111021951A
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- frame
- follow
- drill rod
- guide rail
- drilling rig
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- 238000005553 drilling Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 8
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
Abstract
The invention discloses a follow-up frame mounting structure of a large triangular rotary drilling rig and a drill rod mounting method, wherein the follow-up frame mounting structure comprises an upper mast assembly and a follow-up frame, and a mounting gap is formed between the top end of a guide rail of the upper mast assembly and the top surface of a mast; the support and the slewing bearing of the follow-up frame are integrally arranged, and compared with the prior art, 4 pin shafts are less installed, so that the faults caused by abrasion and fracture of the pin shafts in construction are reduced, and the damage to equipment and constructors caused by falling of the pin shafts from high altitude due to fracture is avoided. The mounting method of the drill rod of the large triangular rotary drilling rig solves the problem that the follow-up frame is difficult to mount on the site of the rotary drilling rig, can further protect the safety of constructors of the rotary drilling rig, and avoids the danger of high-altitude operation; compared with the prior art, the invention not only saves time and labor amount, but also gains praise from customers more importantly due to the advantages of humanized design and implementation effect.
Description
Technical Field
The invention relates to the technical field of piling machinery, in particular to a follow-up frame mounting structure of a large triangular rotary drilling rig and a drill rod mounting method.
Background
The rotary drilling rig can be divided into two types due to different amplitude variation modes of the amplitude variation mechanism, wherein the first type is the rotary drilling rig adopting a parallelogram structure at the amplitude variation position; the second type is a rotary drilling rig adopting a large triangular structure at the amplitude variation position. The mast of the rotary drilling rig of the first luffing mechanism can be integrally tilted backwards during transportation to realize integral transportation, but due to the limitation of transportation height, width and weight, the structure type is only suitable for small and medium-sized rotary drilling rigs, and the disassembly and assembly of the drilling rig follow-up frame can be completed on the inverted middle mast, so that the rotary drilling rig is very convenient. The second rotary drilling rig with a large triangular structure at the amplitude variation position is characterized in that the mast can only tilt backwards for a certain angle (generally within 30 degrees) and can lie forward to a horizontal position of 90 degrees, and due to the characteristics of overlong, superelevation, overweight and the like during transportation, the middle mast, the upper mast, the anchor hanger and the power head driving part generally need to be detached, and meanwhile, the large triangular part is prone forward. This type of equipment is generally large and very large rotary drilling rigs, but is cumbersome to install on the follow-up frame, as will be described in more detail below:
the following frame of the traditional and improved large triangular rotary drilling rigs and the installation process method of the drill rod. At present, the installation of the follow-up frame of the rotary drilling rig generally has two types in the industry: the first form (traditional type) is that other equipment in a construction site, particularly an aerial work vehicle is needed, when a follow-up frame is installed, the aerial work vehicle lifts an installer up to more than 20 meters of height to install a holding claw of the follow-up frame, then a drilling bucket is installed to perform drilling operation, when the follow-up frame is installed in the mode, aerial work is needed, if the field conditions are not perfect, the follow-up frame cannot be installed, and a plurality of troubles, time consumption and labor consumption are brought to users, and the follow-up frame is unsafe; the second mode is that the follow-up frame is designed into a detachable follow-up frame, the detachable follow-up frame mainly comprises a left supporting leg, a right supporting leg and a rotary support, when the detachable follow-up frame is installed, a rotary support of the detachable follow-up frame is firstly connected with a drill rod, then the drill rod is lifted until the drill rod can be placed into a driving piece sleeve of a power head, then the drill rod is connected with a drill bucket, then the drilling operation is started to about 17 meters, then the left and right supporting legs are lifted to the installation position of the follow-up frame through an auxiliary winch, a worker climbs a ladder stand allocated on a vehicle to connect the follow-up frame, and then the construction can be continued.
Disclosure of Invention
The invention aims to provide a follow-up frame mounting structure of a large triangular rotary drilling rig, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides a follow-up frame mounting structure of a large triangular rotary drilling rig, which comprises an upper mast assembly and a follow-up frame matched with the upper mast assembly, wherein the upper mast assembly comprises an upper mast and two convexly-arranged guide rails which are respectively arranged on two opposite sides of the upper mast and are axially arranged along the upper mast, and a mounting gap for mounting the follow-up frame is formed between the top ends of the two guide rails and the top surface of the upper mast; the follow-up frame comprises a support, a slewing bearing and two embracing claws, wherein the support comprises two support legs close to the guide rail when the rotary drilling rig works and a near drilling rod end far away from the guide rail when the rotary drilling rig works, the slewing bearing is arranged at the near drilling rod end of the support, the slewing bearing is used for being connected with a drilling rod, the two embracing claws are arranged at the two support legs of the support through pin shafts respectively, the two embracing claws are used for being lifted to the top end of the guide rail and enabling the two embracing claws to align to the two mounting notches, the two grooves in the embracing claws are used for being matched with the guide rail, so that the whole follow-up frame passes through the mounting notches and is driven to downwards slide into the top end of the guide rail.
Further, the support is of an integral structure, and the support and the slewing bearing are integrally arranged or are connected with the slewing bearing in a welding mode.
Further, the part of the connection between the bracket and the slewing bearing is not less than half of the circumference of the slewing bearing.
Furthermore, the upper end of the guide rail is provided with a guide round angle to protect the nylon sliding plate of the follow-up frame.
The invention also provides an installation method of the drill rod of the large triangular rotary drilling rig, which comprises the following frame installation structure, the main winch assembly, the anchor hanger, the steel wire rope, the drill rod, the power head and the elevator; the installation method comprises the following steps:
step S1, connecting the slewing bearing of the follow-up frame with the top end of the drill rod, and simultaneously connecting the lower end of the elevator with the top end of the drill rod;
step S2, connecting the steel wire rope with the upper end of the elevator, and simultaneously hoisting the drill rod to ensure that the follow-up frame does not contact the ground, but the holding claw is not stressed;
step S3, the main winch assembly lifts the steel wire rope, meanwhile, the rotary drilling rig slowly walks forwards according to the field situation to avoid friction caused by relative motion of the bottom end of the drill rod and the ground, and the steel wire rope is lifted until the bottom end of the drill rod is lifted to be right above a driving piece sleeve of the power head;
s4, aligning the holding claws with the mounting notches above the guide rail, lowering the steel wire rope, and matching the grooves of the holding claws with the raised guide rail so as to drive the whole follow-up frame to slide downwards into the guide rail from the top end of the guide rail, thereby completing the mounting of the follow-up frame;
s5, connecting and installing the bottom end of the drill rod with a driving piece sleeve of the power head (11), and starting construction after the drill rod is installed; after the construction operation is finished, if the rotary drilling rig needs to be transported, the process of disassembling the drill rod is just opposite to the process of installing the drill rod.
Further, in step S1, the slewing bearing and the drill rod are connected by a bolt, and the bolt is tightened to a set torque.
Further, in step S4, if the locking claw is not aligned with the mounting notch, the position of the follower frame is adjusted by rotating the drill rod.
Further, in step S4, a distance between a center of the wire rope at the pulley at the front end of the anchor frame and the guide rail surface is the same as a distance between a center of rotation of the slewing bearing of the follow-up frame and the guide rail surface, and a distance between the center of rotation of the slewing bearing of the follow-up frame and the guide rail surface is the same as a distance between a center of a driving member sleeve of the power head and the guide rail surface, so that the drill rod can fall into the driving member sleeve of the power head while the holding claw is matched with the guide rail.
Compared with the prior art, the invention has the following beneficial effects:
(1) the follow-up frame mounting structure of the large triangular rotary drilling rig comprises an upper mast assembly and a follow-up frame, wherein a mounting gap for mounting the follow-up frame is formed between the top end of a guide rail of the upper mast assembly and the top surface of a mast; the support and the slewing bearing of the follow-up frame are integrally arranged, and compared with the prior art, 4 pin shafts are less installed, so that the faults caused by abrasion and fracture of the pin shafts in construction are reduced, and the damage to equipment and constructors caused by falling of the pin shafts from high altitude due to fracture is avoided.
(2) The drill rod installation method of the large triangular rotary drilling rig solves the problem that the follow-up frame is difficult to install on the site of the rotary drilling rig, can further protect the safety of constructors of the rotary drilling rig, and avoids the danger of high-altitude operation.
(3) The drill rod installation method of the large triangular rotary drilling rig avoids the use cost of an overhead working truck, particularly reduces the workload of field construction personnel, and ensures that the construction of equipment becomes safer.
(4) The time for installing the drill rod by adopting the traditional process method is generally about 4 hours, and the installation time for installing the drill rod by adopting the method disclosed by the invention is shortened to be within 1 hour; the invention not only saves time and labor amount, but also gains praise and praise of customers due to the advantages of humanized design and implementation effect.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a follow-up frame of a large triangular rotary drilling rig according to the invention;
FIG. 2 is a schematic structural view of the upper mast assembly of the present invention;
FIG. 3 is a schematic structural diagram of a large triangular rotary drilling rig according to the invention;
FIG. 4 is a process schematic of a method of installing a drill pipe according to the present invention;
the device comprises a main hoisting assembly, a hoisting anchor frame, a mast assembly, a mast, a guide rail, a guide fillet, a guide notch, a mounting notch, a steel wire rope, a follow-up frame, a support, a supporting leg, a drill rod end approaching 9.12, a rotary support, a slewing bearing, a holding claw, a supporting leg, a groove, a drill rod, a power head, a lifter and a hoisting device, wherein the main hoisting assembly is 2, the hoisting anchor frame is 4, the mast assembly is 5, the mast assembly is 5.1, the guide rail is 5.2a, the guide fillet is 5a, the mounting.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 and 2, the following frame mounting structure of the large triangular rotary drilling rig of the invention comprises an upper mast assembly 5 and a following frame 9 matched with the upper mast assembly, wherein the upper mast assembly comprises an upper mast 5.1 and two convexly arranged guide rails 5.2 which are respectively arranged on two opposite sides of the upper mast and are axially arranged along the upper mast, and a mounting gap 5a for mounting the following frame is formed between the top ends of the two guide rails and the top surface of the upper mast; the follow-up frame comprises a support 9.1, a rotary support 9.2 and two embracing claws 9.3, the support comprises two support legs 9.11 close to the guide rail when the rotary drilling rig works and a near drill rod end 9.12 far away from the guide rail when the rotary drilling rig works, the rotary support is arranged at the near drill rod end of the support, the rotary support is used for being connected with a drill rod 10, the two embracing claws are arranged at the two support leg ends of the support through pin shafts respectively, the two embracing claws are used for being matched with the guide rail after being lifted to the top end of the guide rail and enabling the two embracing claws to be aligned with two installation gaps when the follow-up frame, and the whole follow-up frame slides downwards into the guide rail from the top end of the guide rail through the installation gaps. Specifically, the support is of an integral structure, and the support and the slewing bearing are integrally arranged or are connected in a welding mode. In the structural arrangement, the guide rail is shortened according to the installation requirement of the follow-up frame, and the top end of the guide rail is provided with a guide fillet 5.2a, so that the clamping claw and the guide rail are further convenient to install. The follow-up frame assembly of this structure adopts integral follow-up frame mode, has reduced the installation to the left and right landing leg of follow-up frame, need not constructor simultaneously and stand the operation on the cat ladder or power head, has guaranteed the safety of assembly environment.
In a specific embodiment, the part of the connection between the bracket and the slewing bearing is not less than half of the circumference of the slewing bearing. The structure enables the bracket and the slewing bearing to be connected firmly, and improves the safety performance of products.
With reference to fig. 3 and 4, a drill rod installation method of a large triangular rotary drilling rig comprises the steps of using a follow-up frame installation structure, a main hoisting assembly 2, an anchor hanger 4, a steel wire rope 8, a drill rod 10, a power head 11 and an elevator 12, wherein the follow-up frame installation structure comprises an upper mast assembly 5 and a follow-up frame 9, and the main hoisting assembly is arranged on a main machine 1 of the rotary drilling rig; the installation method comprises the following steps:
step S1, connecting a slewing bearing 9.2 of a follow-up frame 9 of the large triangular rotary drilling rig with the top end of a drill rod 10 by adopting a bolt, screwing the slewing bearing to a set torque force by using a torque wrench, and connecting the lower end of an elevator 12 with the top end of the drill rod 10 by using a pin shaft;
step S2, connecting the steel wire rope 8 with the upper end of the elevator 12 through a pin shaft, simultaneously slightly hoisting the drill rod to ensure that the follow-up frame does not contact the ground, but the holding claw 9.3 is not stressed, and then connecting the holding part of the follow-up frame through the pin shaft;
step S3, the main winch assembly 2 lifts the steel wire rope 8, meanwhile, the rotary drilling rig slowly walks forwards according to the field situation, and the purpose of forward walking of the rotary drilling rig is to avoid damage to the ground and the drill rod caused by sliding of the drill rod on the ground due to lifting of the steel wire rope; lifting the steel wire rope 8 until the bottom end of the drill rod 10 is lifted to be right above a driving piece sleeve of the power head 11;
s4, aligning the holding claw held by the follow-up frame with the installation notch 5a above the guide rail, and lowering the steel wire rope 8, wherein the distance between the center of the steel wire rope at the pulley at the front end of the anchor frame 4 and the guide rail surface is the same as the distance between the rotating center of the rotary support of the follow-up frame and the guide rail surface, and the distance between the rotating center of the rotary support of the follow-up frame and the guide rail surface is the same as the distance between the center of the driving piece sleeve of the power head and the guide rail surface, so that the drill rod falls into the driving piece sleeve of the power head while the holding claw and the guide rail are partially sleeved, and the groove of the holding claw is matched with the raised guide rail, thereby driving the whole follow-up frame to slide downwards into the;
step S5, connecting and installing the bottom end of the drill rod with a driving piece sleeve of the power head 11, installing the drill rod 10, and installing a drilling bucket at the bottom end of the drill rod to start construction; if the construction operation is completed and the transportation is needed, the dismounting process is just opposite to the mounting process.
In a specific embodiment, in step S4, if the holding claw is not aligned with the installation notch, the position of the follow-up frame is adjusted by rotating the drill rod; in the structural arrangement, the follow-up frame can rotate along with the follow-up frame though the follow-up frame has the rotary support.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A follow-up frame mounting structure of a large triangular rotary drilling rig is characterized by comprising an upper mast assembly (5) and a follow-up frame (9) matched with the upper mast assembly, wherein the upper mast assembly comprises an upper mast (5.1) and two convexly-arranged guide rails (5.2) which are respectively arranged on two opposite sides of the upper mast and are axially arranged along the upper mast, and a mounting notch (5a) for mounting the follow-up frame is formed between the top ends of the two guide rails and the top surface of the upper mast; the follow-up frame comprises a support (9.1), a slewing bearing (9.2) and two embracing claws (9.3), the support comprises two support legs (9.11) close to the guide rail when the rotary drilling rig works and a near drill rod end (9.12) far away from the guide rail when the rotary drilling rig works, the slewing bearing is arranged at the near drill rod end of the support, the slewing bearing is connected with a drill rod (10), the two embracing claws are arranged at the two support legs of the support through pin shafts respectively, the two embracing claws are used for being lifted to the top end of the guide rail and enabling the two embracing claws to be aligned to two installation gaps, and then the two grooves (9.31) on the embracing claws are used for being matched with the guide rail so that the whole follow-up frame can slide downwards into the guide rail from the top end of the guide rail through the installation gaps.
2. The follower frame mounting structure as claimed in claim 1, wherein the bracket is a unitary structure and is integrally provided with the slewing bearing or is welded to the slewing bearing.
3. The follower frame mounting structure as claimed in claim 1, wherein a portion connecting the bracket and the slewing bearing is not less than a half of a circumference of the slewing bearing.
4. Follower frame mounting arrangement according to claim 1, characterized in that the upper end of the guide rail is provided with a guide radius (5.2 a).
5. A method for installing a drill rod of a large triangular rotary drilling rig is characterized by comprising the following frame installation structure, a main hoisting assembly (2), a hoisting anchor frame (4), a steel wire rope (8), a drill rod (10), a power head (11) and an elevator (12) according to any one of claims 1 to 4; the installation method comprises the following steps:
step S1, connecting a slewing bearing (9.2) of a follow-up frame (9) with the top end of a drill rod (10), and simultaneously connecting the lower end of an elevator (12) with the top end of the drill rod (10);
step S2, connecting the steel wire rope (8) with the upper end of the elevator (12), and simultaneously hoisting the drill rod to enable the follow-up frame not to contact the ground, but the holding claw (9.3) is not stressed;
s3, the main winch assembly (2) lifts the steel wire rope (8), meanwhile, the rotary drilling rig slowly walks forwards according to the field situation to avoid friction caused by relative motion of the bottom end of the drill rod and the ground, and the steel wire rope (8) is lifted until the bottom end of the drill rod (10) is lifted to be right above a driving piece sleeve of the power head (11);
s4, aligning the holding claws with the mounting notches (5a) above the guide rail, lowering a steel wire rope (8), and matching the grooves of the holding claws with the raised guide rail so as to drive the whole follow-up frame to slide downwards into the guide rail from the top end of the guide rail, thereby completing the mounting of the follow-up frame;
s5, connecting and installing the bottom end of the drill rod with a driving piece sleeve of the power head (11), and starting construction after the drill rod (10) is installed; and after the construction operation is finished, if the rotary drilling rig needs to be transported in a field, the dismounting process of the drill rod is just opposite to the mounting process.
6. Follow-up frame installation method according to claim 5, characterized in that in step S1, the slewing bearing (9.2) and the drill rod (10) are bolted and the bolts are tightened to a set torque.
7. The follower frame mounting method as claimed in claim 5, wherein in the step S4, if the clasping claw is not aligned with the mounting notch, the position of the follower frame is adjusted by rotating the drill rod.
8. The follower frame mounting method as claimed in claim 5, wherein in step S4, the distance between the center of the wire rope and the guide surface at the pulley at the front end of the anchor frame (4) is the same as the distance between the center of rotation of the slewing bearing of the follower frame and the guide surface, and the distance between the center of rotation of the slewing bearing of the follower frame and the guide surface is the same as the distance between the center of the drive member sleeve of the power head and the guide surface, so that the drill rod can fall into the drive member sleeve of the power head while the holding claw is engaged with the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398123.4A CN111021951A (en) | 2019-12-30 | 2019-12-30 | Follow-up frame mounting structure of large triangular rotary drilling rig and mounting method of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398123.4A CN111021951A (en) | 2019-12-30 | 2019-12-30 | Follow-up frame mounting structure of large triangular rotary drilling rig and mounting method of drill rod |
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| Publication Number | Publication Date |
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| CN111021951A true CN111021951A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911398123.4A Pending CN111021951A (en) | 2019-12-30 | 2019-12-30 | Follow-up frame mounting structure of large triangular rotary drilling rig and mounting method of drill rod |
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| CN (1) | CN111021951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622816A (en) * | 2021-08-23 | 2021-11-09 | 恒天九五重工有限公司 | Elastic buffer device is strutted in gyration and rotary drilling machine |
-
2019
- 2019-12-30 CN CN201911398123.4A patent/CN111021951A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622816A (en) * | 2021-08-23 | 2021-11-09 | 恒天九五重工有限公司 | Elastic buffer device is strutted in gyration and rotary drilling machine |
| CN113622816B (en) * | 2021-08-23 | 2024-01-26 | 恒天九五重工有限公司 | Rotary support elastic buffer device and rotary drilling rig |
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