CN108222864B - Drill rod dismounting mechanism - Google Patents
Drill rod dismounting mechanism Download PDFInfo
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- CN108222864B CN108222864B CN201810150854.6A CN201810150854A CN108222864B CN 108222864 B CN108222864 B CN 108222864B CN 201810150854 A CN201810150854 A CN 201810150854A CN 108222864 B CN108222864 B CN 108222864B
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- drill rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 241000282376 Panthera tigris Species 0.000 claims description 22
- 238000013459 approach Methods 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 description 26
- 238000005452 bending Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present disclosure relates to a drill rod setting and removal mechanism comprising a positioning device for defining a setting and removal position of the drill rod, a fixing device for limiting movement of the drill rod in the setting and removal position, and an actuating device enabling rotation of the drill rod in the setting and removal position about its axis, the positioning device comprising a fixed block and a movable block cooperating to define a preset axis, the fixed block being fixed relative to the fixing device, the movable block being selectively fixable relative to the fixing device to allow the drill rod to enter or remove from the setting and to allow the movable block to cooperate with the fixed block to limit movement of the drill rod, its own axis coinciding with the preset axis when the drill rod is in the setting and removal position. The drill rod dismounting mechanism can ensure that the axis of the drill rod is not deviated in the dismounting process, so that the drill rod is prevented from being deformed or damaged in the dismounting process.
Description
Technical Field
The disclosure relates to the technical field of drill rod disassembly, in particular to a drill rod disassembly and assembly mechanism.
Background
When the existing equipment performs drilling operation, drilling tools with different sizes and types can be adopted for operation due to different engineering conditions of construction response. When the drilling machine performs deep hole punching operation, the head threads and the tail threads of a plurality of drill rods are usually connected, and after the drilling is completed, the drill rods are required to be detached. Because of the inertia of the machine, the drill rod can be more tightly drilled in actual work, if the drill rod is disassembled through a wrench, workers can be very hard when disassembling the drill rod, and multiple personnel are often required to finish the disassembly work of the drill rod. Because the connection of the drill rods is tight, if the drill rods are disassembled in a way of reversing the power head, the drill rods can be broken from the middle.
Therefore, many drilling rigs are currently equipped with a drill pipe assembly and disassembly mechanism to automatically clamp and rotate drill pipes and to cooperate with hydraulic or mechanical drilling power heads to effect the unscrewing of connecting threads between the drill pipes. When the drilling rod is disassembled and assembled, the axis of the drilling rod often deviates from the center of the disassembling mechanism due to the fact that the length of the drilling rod is long, and after the disassembling mechanism clamps the drilling rod, the axis of the drilling rod deviates, so that the drilling rod is easy to deform or damage, and the repeated use of the drilling rod and the punching operation of the drilling machine are affected.
Disclosure of Invention
The purpose of this disclosure is to provide a drilling rod dismouting mechanism, and this equipment drilling rod dismouting mechanism can guarantee that the axis of drilling rod does not take place the skew at the dismouting in-process to avoid the drilling rod to take place deformation or damage at the dismantlement in-process, prolong the life of drilling rod.
In order to achieve the above object, the present disclosure provides a drill rod setting and removing mechanism including a positioning device for defining a setting and removing position of the drill rod, a fixing device for restricting movement of the drill rod in the setting and removing position, and an actuating device for enabling the drill rod in the setting and removing position to rotate about its axis, the positioning device including a fixed block and a movable block which cooperate with each other to define a preset axis, the fixed block being fixed relative to the fixing device, the movable block being selectively fixable relative to the fixing device to allow the drill rod to enter or be removed from the setting and removing position, the axis of the drill rod coinciding with the preset axis when the drill rod is in the setting and the movable block cooperating with the fixed block to restrict movement of the drill rod.
Optionally, the fixed block and the movable block are arranged in pairs, and the positioning device is provided with two pairs of fixed block and movable block, which define the preset axis.
Optionally, the fixed block is provided with first circular arc groove, the movable block is provided with the second circular arc groove, first circular arc groove with the second circular arc groove sets up relatively, just first circular arc groove with the radius of curvature of the circular arc that the second circular arc groove corresponds is the same, just the circular arc that the second circular arc groove corresponds is inferior arc, the arc length that the first circular arc groove corresponds is greater than the arc length that the second circular arc groove corresponds, is located simultaneously when the drilling rod is located the dismouting position first circular arc groove with in the second circular arc groove.
Optionally, the fixing block is detachably connected to the fixing device, the movable block is detachably connected to a connection unit, one end of the connection unit is hinged to the fixing device through a shaft, and the other end of the connection unit is releasably locked to the fixing device through a locking unit.
Optionally, the connection unit is further provided with an operation handle for operating the connection unit to rotate around the shaft.
Optionally, the connecting unit includes first connecting plate and second connecting plate that are parallel to each other, and connects the intermediate junction board of first connecting plate and second connecting plate, two the movable block is installed respectively on first connecting plate and the second connecting plate, the one end of intermediate junction board pass through the axle hinge in fixing device, the other end with locking unit cooperatees.
Alternatively, the locking unit includes a screw and a stopper threadedly engaged with the screw, the connection unit is formed with an opening through which the screw passes, a first end of the screw is connected to the fixing device, and a second end opposite to the first end can pass through the opening to be connected with the stopper, thereby restricting rotation of the connection unit about the shaft.
Optionally, the first end of the screw remote from the stop is hinged to the fixing means by a pin to be rotated into or out of the opening.
Optionally, the fixing device comprises a first body and a first clamping unit for releasably clamping the drill rod, the first body is provided with a first groove for accommodating the drill rod, the central point of the first groove coincides with the preset axis, the first clamping unit comprises a first clamping piece and a first driving piece for driving the first clamping piece to move, and the first clamping piece is connected to the first body through the first driving piece.
Optionally, the first clamping members are provided with two, and are arranged on two sides of the first groove in a direction perpendicular to the preset axis, and the first driving members are arranged in one-to-one correspondence with the first clamping members and are used for driving the two first clamping members to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod.
Optionally, the first clamping member is configured as a first V-shaped tiger tooth plate, the first driving member is configured as a hydraulic cylinder, and the first V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder.
Optionally, the actuating device includes movable body, fixed body, is used for the centre gripping the second clamping unit and the actuating piece of drilling rod, the movable body is provided with the second recess that is used for holding the drilling rod, the central point of this second recess with predetermine the axis and coincide, the second clamping unit includes second clamping piece and is used for driving the second driving piece of second clamping piece motion, the second clamping piece passes through the second driving piece connect in the movable body, the movable body around predetermine the axis rotationally connect in the fixed body, the actuating piece drive the movable body around predetermine the axis rotation.
Optionally, the movable body is connected to the fixed body through a sliding connection structure, the sliding connection structure comprises a sliding block and a sliding groove which are matched with each other, the sliding groove is configured as an arc-shaped groove with a circle center on the preset axis, the sliding block is configured as an arc-shaped sliding block, one of the sliding block and the sliding groove is arranged on the movable body, and the other of the sliding block and the sliding groove is arranged on the fixed body.
Alternatively, the sliding connection structure is provided with two sliding connection structures and is arranged at intervals along the preset axis direction.
Alternatively, the actuating member is configured as a hydraulic cylinder, an end of a piston rod of the hydraulic cylinder is hinged to the movable body, and a cylinder body of the hydraulic cylinder is hinged to the fixed body.
Optionally, the second clamping members are provided with two, and are arranged on two sides of the second groove in a direction perpendicular to the preset axis, and the second driving members are arranged in one-to-one correspondence with the second clamping members and are used for driving the two second clamping members to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod.
Optionally, the second clamping member is configured as a second V-shaped tiger tooth plate, the second driving member is configured as a hydraulic cylinder, and the second V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder.
Optionally, the drill rod assembly and disassembly mechanism further comprises an auxiliary fixing device for assisting the fixing device to limit movement of the drill rod.
Optionally, the auxiliary fixing device comprises a second main body and a third clamping unit for releasably clamping the drill rod, the second main body is provided with a third groove for accommodating the drill rod, the center point of the third groove coincides with the preset axis, the third clamping unit comprises a third clamping piece and a third driving piece for driving the third clamping piece to move, and the third clamping piece is connected with the second main body through the third driving piece.
Optionally, the third clamping members are provided with two, and are arranged on two sides of the third groove in a direction perpendicular to the preset axis, and the third driving members are arranged in one-to-one correspondence with the third clamping members and are used for driving the two third clamping members to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod.
Optionally, the third clamping member is configured as a third V-shaped tiger tooth plate, the third driving member is configured as a hydraulic cylinder, and the third V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder.
Optionally, the drill rod assembly and disassembly mechanism further comprises a push beam, and the fixing device and the actuating device are detachably fixed on the push beam.
Through the technical scheme, namely, through the drill rod dismounting mechanism provided by the disclosure, before the drill rod is dismounted, the position of the drill rod is positioned in advance through the positioning device, so that the axis of the drill rod is overlapped with the preset axis defined by the positioning device, the position of the drill rod is corrected, and the drill rod is prevented from eccentric rotation in the dismounting process; and then, clamping and rotating the rotating rod through the fixing device and the actuating device to realize the screwing or loosening of the connecting screw thread of the drill rod. In the process of disassembling and assembling the drill rod, the drill rod is pre-positioned through the positioning device, so that the conditions of bending, deformation or damage and the like caused by eccentric rotation during disassembly and assembly of the drill rod can be avoided, and the purpose of prolonging the service life of the drill rod is achieved. In addition, through the cooperation of movable block and fixed block, positioner still possesses the function that supplementary fixing device restriction drilling rod removed to prevent that the drilling rod from collapsing out from fixing device in the dismouting in-process, improve the operation security.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic perspective view of a drill rod assembly and disassembly mechanism provided in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic perspective view of a fixture provided in an exemplary embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a fixation device along the A-A direction provided by an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic perspective view of an actuator device provided in an exemplary embodiment of the present disclosure;
FIG. 5 is a cross-sectional view of an actuator device along the B-B direction, wherein the actuator is not shown, as provided by exemplary embodiments of the present disclosure;
FIG. 6 is an exploded view of an actuator device provided by an exemplary embodiment of the present disclosure, wherein the actuator is not shown;
FIG. 7 is a schematic perspective view of an auxiliary fixture provided in an exemplary embodiment of the present disclosure;
fig. 8 is a cross-sectional view of an auxiliary fixing device provided in an exemplary embodiment of the present disclosure along the C-C direction.
Description of the reference numerals
1. First groove of fixing device 11
12. First clamping member 13 first driving member
14. First body 2 actuating means
21. Second groove 22 second clamping member
23. Second driving piece 24 movable body
25. Auxiliary fixing device for fixing main body 3
31. Third groove 32 third clamping member
33. Third driving member 34 second body
41. Fixed block 42 movable block
43. First circular arc groove 44 second circular arc groove
51. First connection plate 52 second connection plate
53. Intermediate connection plate 54 shaft
55. Screw with operating handle 61
62. Stopper 63 opening
64. Pin 71 slide block
72. Chute 73 actuator
8. Propulsion beam
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, directional terms such as "upper, lower, left, right" and the like are used with respect to the azimuth or positional relationship shown based on the drawings, and are merely for convenience of description of the present disclosure and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific azimuth, as well as a specific azimuth configuration and operation, and "inside, outside" refers to both inside and outside of the corresponding structural profile.
As shown in fig. 1 to 8, the present disclosure provides a drill rod assembly and disassembly mechanism including a positioning device for defining an assembly and disassembly position of a drill rod, a fixing device 1 for restricting movement of the drill rod in the assembly and disassembly position, and an actuating device 2 for enabling rotation of the drill rod in the assembly and disassembly position about its axis. To facilitate the assembly and disassembly of the drill rod, the securing device 1 and the actuating device 2 may be detachably secured to the feed beam 8. The positioning device comprises a fixed block 41 and a movable block 42 cooperating to define a preset axis, the fixed block 41 being fixed relative to the fixed device 1, the movable block 42 being selectively fixable relative to the fixed device 1 to allow the drill rod to enter or be removed from the disassembled position, and the movable block 42 cooperating with the fixed block 41 to limit the movement of the drill rod, the axis of the drill rod itself coinciding with the preset axis when the drill rod is in the disassembled position.
Through the technical scheme, namely, through the drill rod dismounting mechanism provided by the disclosure, before the drill rod is dismounted, the position of the drill rod is positioned in advance through the positioning device, so that the axis of the drill rod is overlapped with the preset axis defined by the positioning device, the position of the drill rod is corrected, and the drill rod is prevented from eccentric rotation in the dismounting process; the fastening device 1 and the actuating device 2 then clamp and rotate the rotary rod, so that the screw thread of the drill rod connection is screwed or loosened. In the process of disassembling and assembling the drill rod, the drill rod is pre-positioned through the positioning device, so that the conditions of bending, deformation or damage and the like caused by eccentric rotation during disassembly and assembly of the drill rod can be avoided, and the purpose of prolonging the service life of the drill rod is achieved. In addition, through the cooperation of movable block 42 and fixed block 41, positioner still possesses the function that supplementary fixing device restriction drilling rod removed to prevent that the drilling rod from collapsing out from fixing device in the dismouting in-process, improve the operation security. In the exemplary embodiment provided in the present disclosure, the above-described fixed blocks 41 and movable blocks 42 are provided in pairs, and the positioning device is provided with two pairs of fixed blocks 41 and movable blocks 42, the two pairs of fixed blocks 41 and movable blocks 42 defining a preset axis. That is, each pair of fixed blocks 41 and movable blocks 42 may cooperate to define a positioning point, the line between the two positioning points being the aforementioned predetermined axis, which is collinear with the axis of the drill rod itself. Thus, when the drill rod is limited between the two pairs of fixed blocks 41 and the movable block 42, the axis of the drill rod coincides with the preset axis, so that the purpose of correcting the offset of the drill rod and preventing the drill rod from bending in the disassembling process is achieved.
Further, as shown in fig. 2 and 3, the fixed block 41 is provided with a first arc groove 43, the movable block 42 is provided with a second arc groove 44, the first arc groove 43 and the second arc groove 44 are arranged opposite to each other, the curvature radius of the arc corresponding to the first arc groove 43 and the second arc groove 44 is the same, the arc corresponding to the second arc groove 44 is a minor arc, the arc length corresponding to the first arc groove 43 is longer than the arc length corresponding to the second arc groove 44, and the drill rod is located in the first arc groove 43 and the second arc groove 44 simultaneously when being located at the dismounting position. The center point corresponding to the arc of the first arc groove 43 coincides with the center point corresponding to the arc of the second arc groove 44, and the coinciding center point is the positioning point, so that when the drill rod is positioned in the first arc groove 43 and the second arc groove 44, the axis of the drill rod coincides with the center point, and the guiding and the pre-positioning of the drill rod are realized. And, when the drill rod is located in the first circular arc groove 43 and the second circular arc groove 44, the surfaces of the first circular arc groove 43 and the second circular arc groove 44 are abutted against the surface of the drill rod to assist the fixing device 1 to limit the movement of the drill rod, and prevent the drill rod from collapsing out of the fixing device 1.
To improve the versatility of the drill rod assembly and disassembly mechanism of the present disclosure, so that it can be applied to drill rods of various sizes, the fixed block 41 is detachably connected to the fixture 1, the movable block 42 is detachably connected to the connection unit, one end of which is hinged to the fixture 1 through the shaft 54, and the other end of which is releasably locked to the fixture 1 through the locking unit. When the drill rods with different sizes are disassembled and assembled, the fixed block 41 and the movable block 42 which are matched with the drill rods can be replaced according to the shapes and the diameters of the drill rods. Thus, even when the drill rods of different sizes are disassembled, the drill rod disassembling mechanism provided by the disclosure can still guide and position the drill rods. In addition, the movable block 42 is connected to the fixing device 1 through the connection unit, when the connection unit and the fixed block 41 are replaced, the connection unit and the fixing device 1 can be unlocked first, and then the connection unit is rotated to a proper position, so that a proper disassembly and assembly space is provided for the movable block 42 and the fixed block 41, and the movable block 42 and the fixed block 41 are convenient to replace. The connection unit may also be provided with an operating handle 55 for operating the connection unit to rotate about the shaft 54, so as to operate and control the connection unit to rotate.
In the exemplary embodiment provided in the present disclosure, as shown in fig. 2 and 3, the above-mentioned connection unit includes a first connection plate 51 and a second connection plate 52 parallel to each other, and an intermediate connection plate 53 connecting the first connection plate 51 and the second connection plate 52, two movable blocks 42 are respectively mounted on the first connection plate 51 and the second connection plate 52, one end of the intermediate connection plate 53 is hinged to the fixing device 1 through a shaft 54, the other end is engaged with the locking unit, and an operating handle 55 is mounted on the intermediate connection plate 53.
The locking unit may releasably lock the connection unit to the fixing device 1 by various embodiments, and in one embodiment provided in the present disclosure, the locking unit includes a screw 61 and a stopper 62 screw-engaged with the screw 61, the connection unit is formed with an opening 63 through which the screw 61 passes, a first end of the screw 61 is connected to the fixing device 1, and a second end opposite to the first end can pass through the opening 63 to be connected to the stopper 62, thereby restricting rotation of the connection unit about the shaft 54, as shown in fig. 2 and 3. By operating the stopper 62, the stopper 62 is movable along the axis of the screw 61 so as to approach or depart from the connection unit. When the stop 62 approaches the connection unit, a force is applied to the connection unit against the fixing device 1, thereby locking the connection unit to the fixing device 1, and when the stop 62 is away from the connection unit, the force gradually decreases and disappears, so that the connection unit is disengaged from the fixing device 1 and can rotate about the shaft 54.
Further, a first end of the screw 61 remote from the stop 62 may be hinged to the fixture 1 by a pin 64 to be rotated into or out of the opening 63. In this way, when the connection unit is rotated, the screw 61 and the stopper 62 connected to the screw 61 can be simultaneously separated from the opening 63, i.e., away from the connection unit, so as to maximize the rotation angle of the connection unit as much as possible, facilitate the disassembly of the fixed block 41 and the movable block 42, and prevent the screw 61 or the stopper 62 from interfering with the rotation of the connection unit.
As shown in fig. 1 to 3, in the exemplary embodiment provided in the present disclosure, the fixing device 1 includes a first body 14 provided with a first groove 11 for receiving a drill rod, and a first clamping unit for releasably clamping the drill rod, the first clamping unit including a first clamping member 12 and a first driving member 13 for driving the first clamping member 12 to move, the first clamping member 12 being connected to the first body 14 through the first driving member 13, and a center point of the first groove 11 coinciding with a preset axis. The center point of the first groove 11 is a point on the axis of the drill rod in the first groove 11, that is, the center point of the first groove 11, the preset axis and the axis of the drill rod are overlapped, so that the drill rod preset by the positioning device can be located in the center of the first groove 11, and the axis of the drill rod located in the fixing device 1 is prevented from being deviated.
Further, the first clamping members 12 are provided with two, and are arranged on two sides of the first groove 11 in a direction perpendicular to the preset axis, and the first driving members 13 are arranged in one-to-one correspondence with the first clamping members 12 and are used for driving the two first clamping members 12 to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod.
Specifically, in the embodiment provided in the present disclosure, as shown in fig. 2, the first clamping member 12 is configured as a first V-shaped tiger tooth plate, and the first driving member 13 is configured as a hydraulic cylinder, and the first V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder. The two first V-shaped tiger tooth plates can be driven to move relatively through the extension and retraction of the piston rod of the hydraulic oil cylinder so as to be close to or far away from the drill rod at the same time. When the first V-shaped tiger tooth plates are close to the drill rod, the surface of the drill rod abuts against the V-shaped clamping surfaces of the first V-shaped tiger tooth plates, and the drill rod is clamped and limited between the two opposite first V-shaped tiger tooth plates, so that the drill rod is fixed and clamped.
As shown in fig. 4 to 6, in the exemplary embodiment provided in the present disclosure, the actuating device 2 includes a movable body 24, a fixed body 25, a second clamping unit for clamping the drill rod, and an actuating member 73, the movable body 24 is provided with a second groove 21 for receiving the drill rod, a center point of the second groove 21 coincides with a preset axis, the second clamping unit includes a second clamping member 22 and a second driving member 23 for driving the second clamping member 22 to move, the second clamping member 22 is connected to the movable body 24 through the second driving member 23, the movable body 24 is rotatably connected to the fixed body 25 about the preset axis, and the actuating member 73 drives the movable body 24 to rotate about the preset axis. The center point of the second groove 21 is a point on the axis of the drill rod located in the second groove 21, and the center point of the second groove 21, the center point of the first groove 11, the preset axis and the axis of the drill rod are overlapped, so as to avoid the offset of the axis of the drill rod located in the actuating device 2. The second clamping member 22 is used for clamping and fixing the drill rod, and the actuating member 73 is used for driving the movable body 24 to rotate around a preset axis, so that the movable body 24 can clamp and simultaneously drive the drill rod to rotate around the axis of the movable body, and the connecting screw threads between the drill rods are screwed or unscrewed, so that the automatic disassembly and assembly of the drill rod are realized.
Further, the movable body 24 may be rotatably coupled to the fixed body 25 about a predetermined axis by various embodiments, and in one embodiment provided in the present disclosure, the movable body 24 is coupled to the fixed body 25 by a sliding coupling structure including a slider 71 and a chute 72 cooperating with each other, the chute 72 being configured as an arc-shaped groove having a center on the predetermined axis, the slider 71 being configured as an arc-shaped slider, one of the slider 71 and the chute 72 being provided to the movable body 24, and the other of the slider 71 and the chute 72 being provided to the fixed body 25, the slider 71 being moved along a trajectory defined by the chute 72 when the movable body 24 is driven to rotate by the actuator 73, thereby rotating the movable body 24 about the predetermined axis. As an alternative embodiment, the runner 72 may be configured as a dovetail groove in order to avoid displacement of the movable body 24 during rotation relative to the fixed body 25.
In the embodiment provided in the present disclosure, in order to enable relatively smooth sliding between the movable body 24 and the fixed body 25, the fixed body 25 may include two plate-shaped members parallel to each other, which are respectively located at both sides of the movable body 24 in a preset axis direction, wherein each side may be correspondingly provided with the above-mentioned sliding connection structure to enhance rotational stability of the movable body 24.
In one embodiment provided in the present disclosure, the actuating member 73 is configured as a hydraulic cylinder, an end portion of a piston rod of the hydraulic cylinder is hinged to the movable body 24 to drive the movable body 24 to rotate by extension and contraction of the piston rod, and a cylinder body of the hydraulic cylinder is hinged to the fixed body 25 (not shown) to make an adaptive adjustment according to a change in a position of the piston rod when the position of the piston rod is changed due to the rotation of the movable body 24, thereby maximizing a rotation angle of the movable body 24 as much as possible and avoiding interference with the rotation of the movable body 24. In a further embodiment provided by the present disclosure, the fixed body 25 is fixed to the push beam 8, and therefore, the cylinder body of the hydraulic cylinder may also be hinged to the push beam 8 in consideration of the size of the structure itself.
As shown in fig. 5, in the exemplary embodiment provided in the present disclosure, two second clamping members 22 are provided, and are disposed at two sides of the second groove 21 in a direction perpendicular to the preset axis, and second driving members 23 are disposed in one-to-one correspondence with the second clamping members 22, for driving the two second clamping members 22 to approach each other to clamp the drill rod or to separate from each other to release the drill rod.
Specifically, the second clamping member 22 is configured as a second V-shaped tiger tooth plate, and the second driving member 23 is configured as a hydraulic cylinder, and the second V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder. The working principle of the second clamping member 22 and the second driving member 23 is the same as that of the first clamping member 12 and the first driving member 13, and will not be described here for avoiding redundancy.
As shown in fig. 1, 7 and 8, the drill rod disassembling and assembling mechanism provided by the present disclosure further includes an auxiliary fixing device 3 for limiting movement of the drill rod by the auxiliary fixing device 1, and the auxiliary fixing device 3 can cooperate with the fixing device 1 to clamp the drill rod together, thereby improving clamping stability of the drill rod disassembling and assembling mechanism. The auxiliary fixing device 3 can be detachably fixed to the feed beam 8 together with the fixing device 1.
Further, the auxiliary fixture 3 comprises a second body 34 and a third clamping unit for releasably clamping the drill rod, the second body 34 being provided with a third recess 31 for receiving the drill rod, the centre point of the third recess 31 coinciding with the predetermined axis, the third clamping unit comprising a third clamping member 32 and a third driving member 33 for driving the movement of the third clamping member 32, the third clamping member 32 being connected to the second body 34 by means of the third driving member 33. The center point of the third groove 31 is a point on the axis of the drill rod in the third groove 31, and the center point of the third groove 31 coincides with the center point of the first groove 11, the center point of the second groove 21, the preset axis, and the axis of the drill rod at the same time.
Further, the third clamping members 32 are provided in two, and are disposed on two sides of the third groove 31 in a direction perpendicular to the preset axis, and the third driving members 33 are disposed in one-to-one correspondence with the third clamping members 32, and are used for driving the two third clamping members 32 to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod.
Specifically, the third clamp 32 is configured as a third V-shaped tiger tooth plate, and the third drive member 33 is configured as a hydraulic cylinder, and the third V-shaped tiger tooth plate is fixed to an end of a piston rod of the hydraulic cylinder. The operation principle of the third clamping member 32 and the third driving member 33 is the same as that of the first clamping member 12 and the first driving member 13, and will not be described here.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure. In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (9)
1. A drill rod dismounting mechanism is characterized in that,
comprising positioning means for defining a dismounting position of the drill rod, fixing means (1) for limiting the movement of the drill rod in the dismounting position and actuating means (2) enabling the drill rod in the dismounting position to rotate about its axis, the positioning means comprising a fixed block (41) and a movable block (42) cooperating to define a preset axis, the fixed block (41) being fixed relative to the fixing means (1), the movable block (42) being selectively fixable relative to the fixing means (1) to allow the drill rod to enter or be removed from the dismounting position, the axis of the drill rod coinciding with the preset axis when the drill rod is in the dismounting position, and the movable block (42) cooperating with the fixed block (41) to limit the movement of the drill rod,
the fixed blocks (41) and the movable blocks (42) are arranged in pairs, and the positioning device is provided with two pairs of the fixed blocks (41) and the movable blocks (42), and the two pairs of the fixed blocks (41) and the movable blocks (42) define the preset axis.
2. The drill rod assembly and disassembly mechanism of claim 1, wherein,
the fixed block (41) is provided with a first arc groove (43), the movable block (42) is provided with a second arc groove (44), the first arc groove (43) and the second arc groove (44) are oppositely arranged, the curvature radius of the arc corresponding to the first arc groove (43) and the curvature radius of the arc corresponding to the second arc groove (44) are the same, the arc corresponding to the second arc groove (44) is a minor arc, the arc length corresponding to the first arc groove (43) is larger than the arc length corresponding to the second arc groove (44), and the drill rod is simultaneously located in the first arc groove (43) and the second arc groove (44) when being located at the dismounting position.
3. The drill rod assembly and disassembly mechanism of claim 1, wherein,
the fixed block (41) is detachably connected with the fixed device (1), the movable block (42) is detachably connected with a connecting unit, one end of the connecting unit is hinged with the fixed device (1) through a shaft (54), and the other end of the connecting unit is releasably locked with the fixed device (1) through a locking unit;
the connecting unit is also provided with an operating handle (55) for operating the connecting unit to rotate around the shaft (54).
4. The drill rod assembly and disassembly mechanism according to claim 3, wherein,
the connecting unit comprises a first connecting plate (51) and a second connecting plate (52) which are parallel to each other, and an intermediate connecting plate (53) which is connected with the first connecting plate (51) and the second connecting plate (52), wherein the two movable blocks (42) are respectively arranged on the first connecting plate (51) and the second connecting plate (52), one end of the intermediate connecting plate (53) is hinged to the fixing device (1) through a shaft (54), and the other end of the intermediate connecting plate is matched with the locking unit.
5. The drill rod assembly and disassembly mechanism according to claim 3, wherein,
the locking unit comprises a screw (61) and a stopper (62) in threaded engagement with the screw (61), the connecting unit is formed with an opening (63) through which the screw (61) passes, a first end of the screw (61) is connected to the fixing device (1), and a second end opposite to the first end can pass through the opening (63) to be connected with the stopper (62) so as to restrict rotation of the connecting unit about the shaft (54);
the first end of the screw (61) remote from the stop (62) is hinged to the fixing device (1) by a pin (64) to be turned into or out of the opening (63).
6. The drill rod assembly and disassembly mechanism of claim 1, wherein,
the fixing device (1) comprises a first main body (14) and a first clamping unit for releasably clamping the drill rod, wherein the first main body (14) is provided with a first groove (11) for accommodating the drill rod, the center point of the first groove (11) coincides with the preset axis, the first clamping unit comprises a first clamping piece (12) and a first driving piece (13) for driving the first clamping piece (12) to move, and the first clamping piece (12) is connected to the first main body (14) through the first driving piece (13);
the first clamping pieces (12) are arranged at two sides of the first groove (11) in the direction perpendicular to the preset axis, the first driving pieces (13) are arranged in one-to-one correspondence with the first clamping pieces (12) and are used for driving the two first clamping pieces (12) to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod;
the first clamping piece (12) is configured as a first V-shaped tiger tooth plate, the first driving piece (13) is configured as a hydraulic oil cylinder, and the first V-shaped tiger tooth plate is fixed at the end part of a piston rod of the hydraulic oil cylinder.
7. The drill rod assembly and disassembly mechanism of claim 1, wherein,
the actuating device (2) comprises a movable main body (24), a fixed main body (25), a second clamping unit and an actuating piece (73), wherein the second clamping unit is used for clamping a drill rod, the movable main body (24) is provided with a second groove (21) used for accommodating the drill rod, the center point of the second groove (21) coincides with the preset axis, the second clamping unit comprises a second clamping piece (22) and a second driving piece (23) used for driving the second clamping piece (22) to move, the second clamping piece (22) is connected with the movable main body (24) through the second driving piece (23), the movable main body (24) is rotatably connected with the fixed main body (25) around the preset axis, and the actuating piece (73) drives the movable main body (24) to rotate around the preset axis;
the movable main body (24) is connected to the fixed main body (25) through a sliding connection structure, the sliding connection structure comprises a sliding block (71) and a sliding groove (72) which are matched with each other, the sliding groove (72) is configured as an arc-shaped groove with the center of a circle on the preset axis, the sliding block (71) is configured as an arc-shaped sliding block, one of the sliding block (71) and the sliding groove (72) is arranged on the movable main body (24), and the other of the sliding block (71) and the sliding groove (72) is arranged on the fixed main body (25);
the sliding connection structures are arranged in two and are arranged at intervals along the preset axial direction;
the actuating element (73) is configured as a hydraulic cylinder, the end of the piston rod of which is hinged to the movable body (24), the cylinder body of which is hinged to the fixed body (25);
the second clamping pieces (22) are arranged at two sides of the second groove (21) in the direction perpendicular to the preset axis, and the second driving pieces (23) are arranged in one-to-one correspondence with the second clamping pieces (22) and are used for driving the two second clamping pieces (22) to approach each other so as to clamp the drill rod or to separate from each other so as to release the drill rod;
the second clamping member (22) is configured as a second V-shaped tiger tooth plate, and the second driving member (23) is configured as a hydraulic cylinder, and the second V-shaped tiger tooth plate is fixed at the end part of a piston rod of the hydraulic cylinder.
8. The drill rod assembly and disassembly mechanism of claim 1, wherein,
the drill rod dismounting mechanism further comprises an auxiliary fixing device (3) for assisting the fixing device (1) to limit the movement of the drill rod;
the auxiliary fixing device (3) comprises a second main body (34) and a third clamping unit for releasably clamping the drill rod, the second main body (34) is provided with a third groove (31) for accommodating the drill rod, the center point of the third groove (31) coincides with the preset axis, the third clamping unit comprises a third clamping piece (32) and a third driving piece (33) for driving the third clamping piece (32) to move, and the third clamping piece (32) is connected to the second main body (34) through the third driving piece (33);
the third clamping pieces (32) are arranged at two sides of the third groove (31) in the direction perpendicular to the preset axis, and the third driving pieces (33) are arranged in one-to-one correspondence with the third clamping pieces (32) and are used for driving the two third clamping pieces (32) to be close to each other so as to clamp the drill rod or to be far away from each other so as to release the drill rod;
the third clamping element (32) is configured as a third V-shaped tiger tooth plate, and the third driving element (33) is configured as a hydraulic cylinder, and the third V-shaped tiger tooth plate is fixed at the end part of a piston rod of the hydraulic cylinder.
9. The drill rod assembly and disassembly mechanism according to any one of claims 1-8,
the drill rod dismounting mechanism further comprises a pushing beam (8), and the fixing device (1) and the actuating device (2) are detachably fixed on the pushing beam (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150854.6A CN108222864B (en) | 2018-02-13 | 2018-02-13 | Drill rod dismounting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150854.6A CN108222864B (en) | 2018-02-13 | 2018-02-13 | Drill rod dismounting mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109577880A (en) * | 2018-11-20 | 2019-04-05 | 中国铁建重工集团有限公司 | A kind of propulsion device and drilling machine with boring coring function |
| CN110792400B (en) * | 2019-11-28 | 2021-09-07 | 江苏徐工工程机械研究院有限公司 | Drill rod clamping mechanism and drill rod replacing device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6227587B1 (en) * | 2000-02-07 | 2001-05-08 | Emma Dee Gray | Combined well casing spider and elevator |
| EP2705211B1 (en) * | 2011-05-01 | 2018-04-18 | Frank's International, LLC | Floating spider |
| CN202249835U (en) * | 2011-09-16 | 2012-05-30 | 北京市三一重机有限公司 | Pipe rolling drill and secondary clamp component thereof |
| CN203463046U (en) * | 2013-06-24 | 2014-03-05 | 浙江海聚科技有限公司 | Novel self-centering drill clamping device structure |
| CN103470255B (en) * | 2013-09-23 | 2015-05-20 | 中国矿业大学 | Five-bit spiral-drill coal mining device convenient for switching drilling rods |
| CN105888583A (en) * | 2014-09-19 | 2016-08-24 | 江苏德航工程机械装备有限公司 | An independent separation type clamping mechanism |
| CN107420051A (en) * | 2017-05-08 | 2017-12-01 | 中煤科工集团重庆研究院有限公司 | Automatic floating centering hydraulic gripper |
| CN107503695A (en) * | 2017-10-18 | 2017-12-22 | 徐工集团工程机械有限公司 | A kind of drill rod grip device of clamper and multifunctional drill |
| CN207863900U (en) * | 2018-02-13 | 2018-09-14 | 北京新能正源智能装备有限公司 | Drilling rod mechanism for assembling-disassembling |
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