CN112343527B - Lifting box of gear rack drilling machine and operation control method - Google Patents
Lifting box of gear rack drilling machine and operation control method Download PDFInfo
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- CN112343527B CN112343527B CN202011223921.6A CN202011223921A CN112343527B CN 112343527 B CN112343527 B CN 112343527B CN 202011223921 A CN202011223921 A CN 202011223921A CN 112343527 B CN112343527 B CN 112343527B
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- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/083—Cam, rack or like feed mechanisms
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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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention provides a lifting box of a rack and pinion drilling machine without generating extra bending moment and an operation control method, wherein lifting lugs are fixedly arranged at diagonal positions of the top of a lifting box body structure, and a first roller assembly and a second roller assembly which are in contact, guide and fit with two outer side walls of a top drive track are respectively arranged at the top end and the bottom end of the lifting box body structure in diagonal positions; the lifting box body structure is provided with a lifting power device which is matched with the two groups of derrick rack assemblies; the lifting power devices are arranged in pairs inside the lifting box body structure and are respectively positioned on two sides of the derrick rack component to form gear rack transmission fit; the bottom end of the lifting box body structure is fixedly provided with an ear plate structure. The gear on the lifting box can be ensured to be simultaneously contacted with the two rack surfaces, the suspension installation mode of the gear lifting box is avoided, and the gear lifting box is effectively prevented from being blocked due to the fact that the gear lifting box is subjected to extra bending moment in the operation process.
Description
Technical Field
The invention relates to the technical field of drilling tools for petroleum and natural gas exploitation, in particular to a lifting box of a rack and pinion drilling machine and an operation control method.
Background
Compared with the conventional drilling machine, the gear rack drilling machine has the advantages of no winch, hook and wire rope moving system, simple structure and convenient installation, movement and transportation. Because the gear lifting box is not provided with a moving system, the gear lifting box is directly connected with the drill string through the top drive, the direction of the drill string is convenient to control, the gear lifting box has lifting capacity, the gear lifting box can actively press the top to drill, the gear lifting box is particularly suitable for special drilling wells such as directional wells, horizontal wells and side drilling wells, and the problems of low efficiency and poor economical efficiency of drilling the upper stratum by using a deep well drilling machine can be effectively solved.
The rack of the existing rack and pinion drilling machine is arranged on the inner side wall of the derrick, and the gear lifting box matched with the rack is of a cantilever structure, so that the pressure applying capacity in the working process is limited. In addition, the gear lifting box and the rack on the existing gear rack drilling machine are in unilateral meshing transmission, the gravity centers of the gear lifting box and the rack are not in the same plane, and in the meshing process, the stress is uneven, unbalanced moment is easy to generate, and then additional bending moment is generated, so that the gear lifting box deflects when being meshed with the rack, the operation of the gear lifting box is not smooth, the jamming is easy to occur, and the drilling efficiency is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a lifting box of a rack and pinion drilling machine and an operation control method, the lifting box of the rack and pinion drilling machine adopts an eight-motor and eight-reducer bilateral balanced arrangement mode, so that a gear on the lifting box can be ensured to be simultaneously contacted with two rack surfaces, and a suspension installation mode of the lifting box of the gear is avoided, so that the gravity centers of the lifting box of the gear and the rack are in the same plane, the meshing transmission precision is finally ensured, and the gear lifting box is effectively prevented from being blocked due to extra bending moment in the operation process.
In order to achieve the technical features, the invention is realized as follows: a lifting box of a rack and pinion drilling machine comprises a lifting box body structure, lifting lugs are fixedly mounted at diagonal positions of the top of the lifting box body structure, and a first roller assembly and a second roller assembly which are used for being in contact with and guiding fit with two outer side walls of a top drive rail are respectively arranged at the top end and the bottom end of the lifting box body structure in diagonal positions; the lifting box body structure is provided with a lifting power device which is matched with the two groups of derrick rack assemblies; the lifting power devices are arranged in pairs inside the lifting box body structure and are respectively positioned on two sides of the derrick rack component to form gear rack transmission fit; the bottom end of the lifting box body structure is fixedly provided with an ear plate structure.
The lifting box body structure comprises a top plate and a bottom plate, and a box body frame structure is formed by assembling and welding the top plate and the bottom plate through a first side plate, a second side plate and a connecting plate; shaft holes matched with the lifting power device are symmetrically formed in the first side plate and the second side plate respectively, uniformly distributed flange threaded holes are formed in the peripheries of the shaft holes, a large rectangular hole is formed in the center of the connecting plate, and small rectangular holes are symmetrically formed in two sides of the large rectangular hole; the connecting plates are symmetrically welded between the top plate and the bottom plate, vertical plates are welded between two adjacent connecting plates, baffles are welded at the top ends and the bottom ends of the large rectangular holes and the small rectangular holes of the connecting plates, and rib plates are symmetrically welded between the connecting plates and the first side plate and between the connecting plates and the second side plate respectively; the connecting plate, the first side plate and the top plate; the transverse enclosing plates and the vertical enclosing plates are symmetrically welded among the connecting plate, the second side plate and the bottom plate for reinforcement.
Threaded hole groups matched with the first roller assembly and the second roller assembly are correspondingly processed on the top plate and the bottom plate, rectangular holes are symmetrically arranged on the bottom plate, and the rectangular holes are matched with the lug plate structures; and two outer sides of the top plate and the bottom plate are respectively provided with a track notch matched with the top drive track.
The first roller assembly and the second roller assembly are of the same structure, the second roller assembly comprises a roller bottom plate, the roller bottom plate is fixedly mounted on a top plate and a bottom plate of a lifting box body structure through bottom plate bolts, a wheel shaft mounting plate is fixed to the middle of the top of the roller bottom plate, a wheel shaft is fixedly mounted on the wheel shaft mounting plate, a guide roller is rotatably mounted on the wheel shaft through a bearing, and the bearing is mounted on the wheel shaft in a limiting mode through a locking nut.
The otic placode structure includes the long otic placode in the outside of symmetrical arrangement, the long otic placode in the outside passes the rectangular hole on the bottom plate, be provided with the inboard short otic placode of symmetrical arrangement between the long otic placode in the outside, be provided with the middle part reinforcing plate between the inboard short otic placode, it has the hole for hoist to process on the long otic placode in the outside and the inboard short otic placode, the peripheral welded fastening in hole for hoist has the beaded finish, be fixed with deep floor between long otic placode in the outside and the bottom plate.
The lifting power device comprises a first gear power device, a second gear power device, a third gear power device and a fourth gear power device which have the same structure, the first gear power device and the second gear power device are installed on a second side plate of the lifting box body structure, and the third gear power device and the fourth gear power device are installed on a first side plate of the lifting box body structure; the first gear power device, the second gear power device, the third gear power device and the fourth gear power device are arranged in an equidistant staggered mode along the height direction of the derrick rack component.
The fourth gear power device comprises a hydraulic motor, an output shaft of the hydraulic motor is connected with an input shaft of a speed reducer, a gear is mounted on an output shaft of the speed reducer, the gear is in meshing transmission with the derrick rack assembly, and the speed reducer is fixed at the position of a flange threaded hole of the lifting box body structure through a flange plate; the hydraulic motor is connected to a synchronous hydraulic system for providing hydraulic power.
The derrick rack assembly comprises a first rack and a second rack which are symmetrically arranged in the opposite direction, and the first rack and the second rack are fixedly connected through a connecting rod; the first rack and the second rack are respectively in meshing transmission with a gear power device of the lifting power device.
An operation control method of a lifting box of a rack and pinion drilling machine comprises the following steps:
the method comprises the following steps: eight groups of first gear power devices, second gear power devices, third gear power devices and fourth gear power devices are symmetrically and alternately arranged on a lifting box body structure in a balanced and fixed mode;
step two: the whole lifting box body structure is installed on a derrick rack component in a matching mode, and the first roller component and the second roller component are in contact guiding fit with the outer side wall of the top drive track to perform limiting and straightening;
step three: when the derrick rack assembly works, the synchronous hydraulic system is started, the gear power device is controlled to be started, the hydraulic motor drives the speed reducer, the speed reducer drives the corresponding gear, and the gear is further in synchronous meshing transmission with the first rack and the second rack of the derrick rack assembly;
step four: the whole lifting box body structure is driven to lift through meshing transmission between the gears and the racks which are symmetrically arranged on two sides, and meshing efficiency is guaranteed, so that the smooth operation of the lifting box body structure of the gear rack drilling machine is guaranteed.
The invention has the following beneficial effects:
1. by adopting the lifting box of the gear rack drilling machine, the structure is simple, the size is compact, and the practicability is good. Through the straightening effect of the first roller assembly and the second roller assembly and the meshing transmission of the double-gear rack, the gear lifting box is stably clamped between the racks, the gravity centers of the gear lifting box and the racks are ensured to be in the same plane, and the meshing efficiency is ensured.
2. According to the invention, the plurality of gear power devices are arranged in a staggered manner and driven synchronously, so that the driving force is effectively improved, and the stability of the driving force is ensured.
3. Through the gear rack drilling machine lifting box adopting the structure, the blocking phenomenon caused by extra bending moment generated by unbalanced moment is avoided, so that the gear lifting box can smoothly run, the drilling efficiency is improved, and the drilling cost is reduced.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a first perspective three-dimensional view of the present invention.
FIG. 2 is a second perspective three-dimensional view of the present invention.
FIG. 3 is a first perspective three-dimensional view of the housing of the present invention.
FIG. 4 is a second perspective three-dimensional view of the housing of the present invention.
FIG. 5 is a schematic structural diagram of a bottom plate of the box body of the present invention.
FIG. 6 is a schematic diagram of the structure of the outer long ear plate of the present invention.
Fig. 7 is a top view of the present invention mounted on a derrick.
Fig. 8 is an enlarged partial view of the engagement of the gear of the present invention with the rack on the derrick.
In the figure: the lifting device comprises a lifting box body structure 1, a first roller assembly 2, a second roller assembly 3, a first gear power device 4, a second gear power device 5, a third gear power device 6, a fourth gear power device 7, a lifting lug 8, an ear plate structure 9, a top driving rail 10 and a derrick rack assembly 11;
the structure comprises a top plate 101, a bottom plate 102, a first side plate 103, a second side plate 104, a connecting plate 105, a track gap 106, a baffle plate 107, a rib plate 108, a transverse enclosing plate 109, a standing enclosing plate 110, a shaft hole 111, a flange threaded hole 112 and a threaded hole group 113;
a roller base plate 301, a base plate bolt 302, a lock nut 303, an axle 304, a guide roller 305, and an axle mounting plate 306;
a reinforcing rib plate 901, a reinforcing ring 902, an outer long ear plate 903, an inner short ear plate 904 and a middle reinforcing plate 905;
a first rack 1101, a connecting rod 1102, and a second rack 1103.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-8, a lifting box of a rack and pinion drilling machine comprises a lifting box body structure 1, lifting lugs 8 are fixedly installed at diagonal positions of the top of the lifting box body structure 1, and a first roller assembly 2 and a second roller assembly 3 which are used for being in contact with and matched with two outer side walls of a top driving rail 10 in a guiding manner are respectively arranged at the top end and the bottom end of the lifting box body structure 1 in diagonal positions; a lifting power device matched with the two groups of derrick rack assemblies 11 is arranged on the lifting box body structure 1; the lifting power devices are arranged in pairs inside the lifting box body structure 1 and are respectively positioned at two sides of the derrick rack component 11 to form gear rack transmission fit; and the bottom end of the lifting box body structure 1 is fixedly provided with an ear plate structure 9. Through adopting the rack and pinion rig lifting box of above-mentioned structure, can realize promoting the stable lift of box structure 1, in the course of the work, carry out spacing and alignment through first wheel components 2 and second wheel components 3 to the rack and pinion lifting box, through the rack and pinion meshing transmission mode that adopts double-deck symmetrical arrangement, meshing efficiency has been guaranteed, the card that has avoided because unbalanced moment produces extra moment of flexure and leads to hinders the phenomenon, make the rack and pinion lifting box operate smoothly, drilling efficiency has then been improved, drilling cost is reduced.
Further, the lifting box body structure 1 comprises a top plate 101 and a bottom plate 102, and the top plate 101 and the bottom plate 102 are assembled and welded into a box body frame structure through a first side plate 103, a second side plate 104 and a connecting plate 105; shaft holes 111 matched with a lifting power device are symmetrically formed in the first side plate 103 and the second side plate 104 respectively, uniformly distributed flange threaded holes 112 are formed in the periphery of the shaft holes 111, a large rectangular hole is formed in the center of the connecting plate 105, and small rectangular holes are symmetrically formed in two sides of the large rectangular hole; the connecting plates 105 are symmetrically welded between the top plate 101 and the bottom plate 102, a track gap 106 is welded between two adjacent connecting plates 105, baffles 107 are welded at the top ends and the bottom ends of the large rectangular holes and the small rectangular holes of the connecting plates 105, and rib plates 108 are symmetrically welded between the connecting plates 105 and the first side plate 103 as well as between the connecting plates 105 and the second side plate 104; the connecting plate 105, the first side plate 103 and the top plate 101; the transverse enclosing plate 109 and the standing plate 110 are symmetrically welded among the connecting plate 105, the second side plate 104 and the bottom plate 102 for reinforcement. Through adopting the promotion box structure 1 of above-mentioned structure it adopts box welded structure, when having simplified its structure, has strengthened its structural strength.
Four small rectangular through holes are processed on two sides of the large rectangular hole, so that the weight of the box body can be reduced, and the wiring of pipelines inside the box body is facilitated.
Further, the top plate 101 and the bottom plate 102 are correspondingly processed with threaded hole groups 113 for matching with the first roller assembly 2 and the second roller assembly 3, the bottom plate 102 is processed with symmetrically arranged rectangular holes 114, and the rectangular holes 114 are matched with the ear plate structure 9; and two outer sides of the top plate 101 and the bottom plate 102 are respectively provided with a rail notch 106 for matching with the top drive rail 10. Through the structural style of the top plate and the bottom plate, the top plate and the bottom plate can be used for being matched with the top drive rail 10, and further the stability in the lifting process is ensured.
Further, the first roller assembly 2 and the second roller assembly 3 have the same structure, the second roller assembly 3 includes a roller base plate 301, the roller base plate 301 is fixedly mounted on the top plate 101 and the bottom plate 102 of the lifting box structure 1 through base plate bolts 302, a wheel axle mounting plate 306 is fixed to the middle of the top of the roller base plate 301, a wheel axle 304 is fixedly mounted on the wheel axle mounting plate 306, a guide roller 305 is rotatably mounted on the wheel axle 304 through a bearing, and the bearing is mounted on the wheel axle 304 in a limiting manner through a locking nut 303. Through foretell wheel components, as long as play the purpose of roll direction, and then guaranteed the realization lift that promotion box structure 1 can be stable.
Further, otic placode structure 9 is including the long otic placode 903 in the outside of symmetrical arrangement, the long otic placode 903 in the outside passes rectangular hole 114 on the bottom plate 102, be provided with the inboard short otic placode 904 of symmetrical arrangement between the long otic placode 903 in the outside, be provided with middle part reinforcing plate 905 between the inboard short otic placode 904, it has the hole for hoist to process on long otic placode 903 in the outside and the inboard short otic placode 904, the peripheral welded fastening of hole for hoist has stiffening ring 902, be fixed with deep floor 901 between long otic placode 903 in the outside and the bottom plate 102. The ear plate structure 9 can be used for connecting drilling equipment, and the structural strength of the ear plate structure is guaranteed.
Further, the lifting power device comprises a first gear power device 4, a second gear power device 5, a third gear power device 6 and a fourth gear power device 7 which have the same structure, the first gear power device 4 and the second gear power device 5 are installed on a second side plate 104 of the lifting box body structure 1, and the third gear power device 6 and the fourth gear power device 7 are installed on a first side plate 103 of the lifting box body structure 1; the first gear power device 4, the second gear power device 5, the third gear power device 6 and the fourth gear power device 7 are arranged in a staggered mode at equal intervals along the height direction of the derrick rack assembly 11. The lifting power device can be used for realizing lifting action, and a staggered arrangement mode is adopted, so that the blocking phenomenon caused by extra bending moment generated by unbalanced moment is avoided, and the gear lifting box can smoothly run.
Further, the fourth gear power device 7 comprises a hydraulic motor 701, an output shaft of the hydraulic motor 701 is connected with an input shaft of a speed reducer 702, a gear 704 is mounted on the output shaft of the speed reducer 702, the gear 704 is in meshing transmission with the derrick rack assembly 11, and the speed reducer 702 is fixed at the position of the flange threaded hole 112 of the hoisting box body structure 1 through a flange plate; the hydraulic motor 701 is connected to a synchronous hydraulic system for providing hydraulic power. Through the gear power device, the meshing transmission of a gear and a rack can be realized, in the working process, the hydraulic motor 701 drives the speed reducer 702, the gear 704 is driven through the speed reducer 702, and then the lifting action is realized through the meshing between the gear 704 and the rack.
Further, the derrick rack assembly 11 comprises a first rack 1101 and a second rack 1103 which are symmetrically arranged in opposite directions, and the first rack 1101 and the second rack 1103 are fixedly connected with each other through a connecting rod 1102; the first rack 1101 and the second rack 1103 are respectively in mesh transmission with a gear power device of the lifting power device. The derrick rack assembly 11 enhances the structural stability, and simultaneously ensures the meshing reliability and uniform stress.
Example 2:
an operation control method of a lifting box of a rack and pinion drilling machine comprises the following steps:
the method comprises the following steps: eight groups of first gear power devices 4, second gear power devices 5, third gear power devices 6 and fourth gear power devices 7 are uniformly and fixedly arranged on the lifting box body structure 1 in a symmetrical and staggered arrangement mode;
step two: the whole lifting box body structure 1 is installed on a derrick rack component 11 in a matching mode, and a first roller component 2 and a second roller component 3 are in contact guiding fit with the outer side wall of a top drive rail 10 to perform limiting and straightening;
step three: during operation, the synchronous hydraulic system is started, the gear power device is controlled to be started, the speed reducer 702 is driven by the hydraulic motor 701, the corresponding gear 704 is driven by the speed reducer 702, and further the gear 704 is synchronously meshed with the first rack 1101 and the second rack 1103 of the derrick rack assembly 11 for transmission;
step four: the whole lifting box body structure 1 is driven to lift through meshing transmission between the gears and the racks which are symmetrically arranged on two sides, and meshing efficiency is guaranteed, so that the gear rack drilling machine is ensured to smoothly operate the lifting box body structure 1.
Claims (6)
1. The utility model provides a rack and pinion rig lift-off box which characterized in that: the lifting device comprises a lifting box body structure (1), lifting lugs (8) are fixedly mounted at diagonal positions of the top of the lifting box body structure (1), and a first roller assembly (2) and a second roller assembly (3) which are in contact, guiding and matching with two outer side walls of a top drive rail (10) are respectively arranged at the top end and the bottom end of the lifting box body structure (1) in diagonal positions; a lifting power device matched with the two groups of derrick rack assemblies (11) is arranged on the lifting box body structure (1); the lifting power devices are arranged in pairs inside the lifting box body structure (1) and are respectively positioned at two sides of the derrick rack component (11) to form gear and rack transmission fit; an ear plate structure (9) is fixedly arranged at the bottom end of the lifting box body structure (1);
the lifting power device comprises a first gear power device (4), a second gear power device (5), a third gear power device (6) and a fourth gear power device (7) which have the same structure, the first gear power device (4) and the second gear power device (5) are installed on a second side plate (104) of the lifting box body structure (1), and the third gear power device (6) and the fourth gear power device (7) are installed on a first side plate (103) of the lifting box body structure (1); the first gear power device (4), the second gear power device (5), the third gear power device (6) and the fourth gear power device (7) are arranged in a staggered mode at equal intervals along the height direction of the derrick rack assembly (11);
the fourth gear power device (7) comprises a hydraulic motor (701), an output shaft of the hydraulic motor (701) is connected with an input shaft of a speed reducer (702), a gear (704) is installed on an output shaft of the speed reducer (702), the gear (704) is in meshing transmission with the derrick rack assembly (11), and the speed reducer (702) is fixed at the position of a flange threaded hole (112) of the lifting box body structure (1) through a flange plate; the hydraulic motor (701) is connected with a synchronous hydraulic system for providing hydraulic power;
the derrick rack assembly (11) comprises a first rack (1101) and a second rack (1103) which are arranged in an opposite symmetrical mode, and the first rack (1101) and the second rack (1103) are fixedly connected through a connecting rod (1102); the first rack (1101) and the second rack (1103) are respectively in meshing transmission with a gear power device of the lifting power device.
2. A rack and pinion drill lifting box as claimed in claim 1 wherein: the lifting box body structure (1) comprises a top plate (101) and a bottom plate (102), and a box body frame structure is formed by assembling and welding the top plate (101) and the bottom plate (102) through a first side plate (103), a second side plate (104) and a connecting plate (105); shaft holes (111) matched with a lifting power device are symmetrically formed in the first side plate (103) and the second side plate (104) respectively, uniformly distributed flange threaded holes (112) are formed in the periphery of the shaft holes (111), a large rectangular hole is formed in the center of the connecting plate (105), and small rectangular holes are symmetrically formed in two sides of the large rectangular hole; the connecting plates (105) are symmetrically welded between the top plate (101) and the bottom plate (102), vertical plates are welded between two adjacent connecting plates (105), baffles (107) are welded at the top ends and the bottom ends of the large rectangular holes and the small rectangular holes of the connecting plates (105), and rib plates (108) are symmetrically welded between the connecting plates (105) and the first side plate (103) and between the connecting plates (105) and the second side plate (104); a connecting plate (105), a first side plate (103) and a top plate (101); transverse enclosing plates (109) and upright enclosing plates (110) are symmetrically welded among the connecting plate (105), the second side plate (104) and the bottom plate (102) for reinforcement.
3. The rack and pinion drill lifting box of claim 2, wherein: the top plate (101) and the bottom plate (102) are correspondingly provided with threaded hole groups (113) matched with the first roller assembly (2) and the second roller assembly (3), the bottom plate (102) is provided with symmetrically arranged rectangular holes (114), and the rectangular holes (114) are matched with the lug plate structure (9); and two outer sides of the top plate (101) and the bottom plate (102) are respectively provided with a track notch (106) matched with the top drive track (10).
4. The rack and pinion drill lifting box of claim 1, wherein: the first roller assembly (2) and the second roller assembly (3) are of the same structure, the second roller assembly (3) comprises a roller base plate (301), the roller base plate (301) is fixedly mounted on a top plate (101) and a base plate (102) of a lifting box body structure (1) through base plate bolts (302), a wheel shaft mounting plate (306) is fixed to the middle of the top of the roller base plate (301), a wheel shaft (304) is fixedly mounted on the wheel shaft mounting plate (306), a guide roller (305) is mounted on the wheel shaft (304) through a bearing in a rotating mode, and the bearing is mounted on the wheel shaft (304) in a limiting mode through a locking nut (303).
5. A rack and pinion drill lifting box as claimed in claim 1 wherein: the utility model discloses a long otic placode structure, including symmetrical arrangement's the long otic placode in outside (903), the long otic placode in outside (903) passes rectangular hole (114) on bottom plate (102), be provided with symmetrical arrangement's inboard short otic placode (904) between the long otic placode in outside (903), be provided with middle part reinforcing plate (905) between inboard short otic placode (904), it has the hole for hoist to process on long otic placode in outside (903) and the inboard short otic placode (904), the peripheral welded fastening of hole for hoist has beaded finish (902), be fixed with deep floor (901) between long otic placode in outside (903) and bottom plate (102).
6. The method of controlling operation of a lift box of a rack and pinion drill as set forth in any one of claims 1 through 5, comprising the steps of:
the method comprises the following steps: eight groups of first gear power devices (4), second gear power devices (5), third gear power devices (6) and fourth gear power devices (7) are uniformly and fixedly arranged on the lifting box body structure (1) according to a symmetrical and staggered arrangement mode;
step two: the whole lifting box body structure (1) is installed on a derrick rack component (11) in a matching mode, and the first roller component (2) and the second roller component (3) are in contact guiding fit with the outer side wall of a top drive rail (10) for limiting and straightening;
step three: when the derrick lifting device works, a synchronous hydraulic system is started, a gear power device is controlled to be started, a speed reducer (702) is driven through a hydraulic motor (701), a corresponding gear (704) is driven through the speed reducer (702), and then the first rack (1101) and the second rack (1103) of a derrick rack assembly (11) are synchronously meshed for transmission through the gear (704);
step four: the whole lifting box body structure (1) is driven to lift through meshing transmission between the gears and the racks which are symmetrically arranged on two sides, and meshing efficiency is guaranteed, so that the gear rack drilling machine is ensured to smoothly operate the lifting box body structure (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011223921.6A CN112343527B (en) | 2020-11-05 | 2020-11-05 | Lifting box of gear rack drilling machine and operation control method |
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| CN202011223921.6A CN112343527B (en) | 2020-11-05 | 2020-11-05 | Lifting box of gear rack drilling machine and operation control method |
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| CN112343527B true CN112343527B (en) | 2022-06-17 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214330551U (en) * | 2020-11-05 | 2021-10-01 | 中石化四机石油机械有限公司 | Gear rack drilling machine lifting box without generating extra bending moment |
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2020
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| WO2009102215A2 (en) * | 2008-02-13 | 2009-08-20 | Seabed Rig As | A device for an electromechanical hoisting machine, especially for use when drilling oil- and gas wells |
| CN202390155U (en) * | 2011-12-06 | 2012-08-22 | 宝鸡石油机械有限责任公司 | Rack and pinion lifting device |
| CN107842318A (en) * | 2017-11-20 | 2018-03-27 | 中石化石油机械股份有限公司 | A kind of gear rack drilling machine lifting device |
| CN107956434A (en) * | 2017-11-20 | 2018-04-24 | 长江大学 | A kind of new gear rack drilling machine lifter |
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| CN209244516U (en) * | 2018-12-17 | 2019-08-13 | 中石化四机石油机械有限公司 | The symmetrical rack structure of gear rack drilling machine |
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| CN112343527A (en) | 2021-02-09 |
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