CN218030094U

CN218030094U - Drilling rod snatchs mechanism

Info

Publication number: CN218030094U
Application number: CN202222620975.7U
Authority: CN
Inventors: 张斌; 蔡平基; 腾飞
Original assignee: Sichuan Rock Drilling Machinery Co ltd
Current assignee: Sichuan Rock Drilling Machinery Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-13
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a drilling rod snatchs technical field, the utility model provides a drilling rod snatchs mechanism, including the tongs to and be used for driving the drive assembly that the tongs removed between case and the rig is deposited to the drilling rod, the tongs includes the grapple, is equipped with two at least clamping jaws along its length direction interval on the grapple, is equipped with the notch on the clamping jaw, and the lateral wall of notch is equipped with at least one first fixed roller, and opening part one side of notch is equipped with second fixed roller, and the opening part opposite side of notch is equipped with movable roller, and movable roller is connected with the translation drive element that drives it and be close to or keep away from second fixed roller, and when pressing from both sides tight drilling rod, first fixed roller, second fixed roller and movable roller all laminate with the outer wall of drilling rod. The utility model discloses when limiting drilling rod axial displacement, can not restrict the circumferential direction of drilling rod, the friction that reduces greatly moreover avoids damaging the drilling rod.

Description

Drilling rod snatchs mechanism

Technical Field

The utility model relates to a drilling rod snatchs technical field, particularly, relates to a drilling rod snatchs mechanism.

Background

The drilling rod both ends of rig are equipped with the screw thread, and one end dress is on the power head during installation, and the drill bit is connected to the other end, and the power head passes through its removal of hydro-cylinder drive to drive the power head and reciprocate, accomplish the work of drilling, when needing to increase the drilling rod, through the drilling rod holder centre gripping drilling rod, throw off the power head, snatch the drilling rod from the drilling rod storage department again, connect the power head and will add the drilling rod and the butt joint of original drilling rod can accomplish the work that increases the drilling rod.

Most of traditional drill rods are taken manually, the labor intensity is high, the danger coefficient is high, and the automatic rod grabbing is achieved through a manipulator (for example, patent documents such as 'CN 114233214A', 'CN 217372356U' and the like), however, most of existing manipulators are used for fixedly clamping the drill rods through clamping jaws similar to finger cylinders, two ends of the added drill rods are connected through threads, the added drill rods need to be rotated during butt joint installation, and when the added drill rods are butted in a clamping mode of the existing manipulator, the added drill rods are easy to rub against the clamping jaws to be damaged due to rotation of the drill rods.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drilling rod snatchs mechanism solves prior art drilling rod and rotates and to lead to its and the clamping jaw to take place the technical problem that the friction and harm easily.

The embodiment of the utility model discloses a realize through following technical scheme:

the utility model provides a drilling rod snatchs mechanism, includes the tongs to and be used for driving the drive assembly that the tongs removed between case and the rig is deposited to the drilling rod, the tongs includes the grapple, be equipped with two at least clamping jaws along its length direction interval on the grapple, be equipped with the notch on the clamping jaw, the lateral wall of notch is equipped with at least one first fixed roller, opening part one side of notch is equipped with the second fixed roller, the opening part opposite side of notch is equipped with movable roller, movable roller is connected with the translation drive element that drives it and be close to or keep away from second fixed roller, when pressing from both sides tight drilling rod, first fixed roller, second fixed roller and movable roller all laminate with the outer wall of drilling rod.

Optionally, the driving assembly comprises a positioning shaft matched with a rotation center of a feed beam of the drilling machine, the positioning shaft is connected with a first rotary driving element for driving the positioning shaft to rotate, a connecting beam perpendicular to the positioning shaft is arranged on the positioning shaft, a connecting shaft perpendicular to the connecting beam is arranged at one end, away from the positioning shaft, of the connecting beam, a second rotary driving element for driving the connecting shaft to rotate around the connecting beam is arranged on the connecting beam, the grabbing arm is rotatably connected with the connecting shaft, and a third rotary driving element for driving the grabbing arm to rotate around the connecting shaft is arranged on the grabbing arm.

Optionally, one side of the connecting beam is provided with a limit stop lever for abutting against the bottom side of the feed beam of the drilling machine, so as to limit the rotation of the connecting beam when the connecting beam rotates to be parallel and coplanar with the feed beam.

Optionally, a mounting base plate is arranged below the connecting beam, the first rotary driving element is mounted on the mounting base plate, and a limiting block which abuts against the bottom of the connecting beam is arranged on the mounting base plate so as to limit the rotation of the connecting beam when the connecting beam rotates to be parallel to the mounting base plate.

Optionally, the first rotary drive element, the second rotary drive element and the third rotary drive element are all hydraulic motors.

Optionally, both ends of the gripping arm are provided with connecting rods, wherein the connecting rod at one end is provided with a first positioning claw matched with the outer wall of the power head connecting part of the drilling machine, and the connecting rod at the other end is provided with a second positioning claw matched with an existing drill rod on the drilling machine.

Optionally, the translational drive element is a hydraulic cylinder.

The utility model discloses following advantage and beneficial effect have at least: the utility model discloses in, press from both sides tight drilling rod through first fixed roller, second fixed roller and movable roller cooperation, when having restricted drilling rod axial displacement, can not restrict the circumferential direction of drilling rod, be rolling friction between first fixed roller, second fixed roller and movable roller and the drilling rod moreover, reduced frictional force greatly, avoid damaging the drilling rod.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a drill rod gripping mechanism provided by the present invention;

FIG. 2 is a schematic view of a gripper;

FIG. 3 is an enlarged cross-sectional view of the jaw;

fig. 4 is a first usage state diagram of the drill rod gripping mechanism provided by the present invention;

fig. 5 is a second usage state diagram of the drill rod gripping mechanism provided by the present invention;

fig. 6 is a third usage state diagram of the drill rod gripping mechanism provided by the present invention;

fig. 7 is a fourth usage state diagram of the drill rod gripping mechanism provided by the present invention;

icon: 200-a drill rod grabbing mechanism, 201-a gripper, 2011-a grabbing arm, 2012-a clamping jaw, 2013-a first fixed roller, 2014-a second fixed roller, 2015-a movable roller, 2016-a translational driving element, 2017-a connecting rod, 2018-a first positioning claw, 2019-a second positioning claw, 202-a positioning shaft, 203-a first rotary driving element, 204-a connecting beam, 205-a connecting shaft, 206-a second rotary driving element, 207-a third rotary driving element, 208-a limiting stop lever, 209-an installation bottom plate, 2091-a supporting plate, 2092-a limiting block, 300-a drilling machine, 301-a power head and 302-a feeding beam.

Detailed Description

Referring to fig. 1, a rod gripping mechanism includes a gripper 201 and a drive assembly for driving the gripper 201 to move between a rod storage bin 100 and a drill rig 300.

Referring to fig. 2-3, the gripper 201 includes a gripping arm 2011, and two jaws 2012 are spaced along a length of the gripping arm 2011, it is easy to understand that the two jaws 2012 can achieve the purpose of gripping the drill rod 112, and certainly, in some embodiments, the number of the jaws 2012 can be increased to ensure the gripping effect.

Be equipped with the recess on clamping jaw 2012, opening part one side of recess is equipped with second fixed gyro wheel 2014, the opening part opposite side of recess is equipped with movable gyro wheel 2015, the lateral wall of recess is equipped with first fixed gyro wheel 2013, first fixed gyro wheel 2013 of this embodiment is equipped with one, it is easily understood that first fixed gyro wheel 2013 also can set up a plurality ofly in other embodiments, when pressing from both sides tight drilling rod 112, first fixed gyro wheel 2013, second fixed gyro wheel 2014 and movable gyro wheel 2015 all laminate with the outer wall of drilling rod 112, first fixed gyro wheel 2013 of this embodiment, second fixed gyro wheel 2014 and movable gyro wheel 2015 are the annular array and arrange, it is easily understood that this kind of arrangement mode presss from both sides tight effect the best.

Movable roller 2015 is connected with the translation drive element 2016 that drives it to be close to or keep away from second fixed roller 2014, this embodiment translation drive element 2016 is the pneumatic cylinder, in the utility model discloses an in other embodiments, translation drive element 2016 also can be the cylinder, electric putter etc, when centre gripping drilling rod 112, make movable roller 2015 keep away from second fixed roller 2014 through translation drive element 2016, be convenient for drilling rod 112 to get into the recess from the opening part of recess, after drilling rod 112 got into the recess, make movable roller 2015 be close to second fixed roller 2014 through translation drive element 2016, can press from both sides drilling rod 112 tightly between first fixed roller 2013, second fixed roller 2014 and movable roller 2015.

It is worth to be noted that when the drill rod 112 is clamped through the cooperation of the first fixed roller 2013, the second fixed roller 2014 and the movable roller 2015, the axial displacement of the drill rod 112 is limited, and meanwhile, the circumferential rotation of the drill rod 112 is not limited, and moreover, rolling friction exists between the first fixed roller 2013, the second fixed roller 2014 and the movable roller 2015 and the drill rod 112, so that the friction force is greatly reduced, and the drill rod 112 is prevented from being damaged.

The driving assembly comprises a positioning shaft 202, the positioning shaft 202 is inserted in the rotating center of a feeding beam 302 of the drilling machine 300 during installation, namely, the positioning shaft 202 can drill around the rotating center of the feeding beam 302 of the drilling machine 300, the positioning shaft 202 is connected with a first rotating driving element 203 for driving the positioning shaft to rotate, a connecting beam 204 perpendicular to the positioning shaft 202 is arranged on the positioning shaft 202, a mounting bottom plate 209 is arranged below the connecting beam 204 in the embodiment, the mounting bottom plate 209 is fixed on an operating platform (not shown) of the drilling machine 300 during use, a supporting plate 2091 is arranged on the mounting bottom plate 209, the positioning shaft 202 is rotatably connected to the supporting plate 2091, and the first rotating driving element 203 is also arranged on the supporting plate 2091. One end of the connecting beam 204, which is far away from the positioning shaft 202, is provided with a connecting shaft 205 perpendicular to the connecting beam 204, the connecting beam 204 is provided with a second rotary driving element 206 for driving the connecting shaft 205 to rotate around the connecting beam 204, the gripping arm 2011 is rotatably connected with the connecting shaft 205, and the gripping arm 2011 is provided with a third rotary driving element 207 for driving the gripping arm to rotate around the connecting shaft 205.

In this embodiment, the first rotation driving element 203, the second rotation driving element 206 and the third rotation driving element 207 are all hydraulic motors, and in other embodiments of the present invention, the first rotation driving element 203, the second rotation driving element 206 and the third rotation driving element 207 may also be motors, steering engines, etc. It will be readily appreciated that in other embodiments of the present invention, other configurations known in the art may be used to effect actuation of the drive gripper between the rod storage bin 100 and the drill rig.

It should be noted that the possible construction angle of the drilling machine 300 is 0-90 °, and the first rotary driving element 203 can drive the gripper 201 to rotate around the positioning shaft 202, so that the gripped drill rod 112 can be rotated to the position corresponding to the construction angle of the drilling machine 300; when the drill rod grabbing mechanism is used, the drill rod storage box 100 for placing the drill rod 112 is placed on one side, away from the drilling machine 300, of the drill rod grabbing mechanism 200, and the second selective driving element can drive the grabbing hand 201 to rotate from one side of the drill rod storage box 100 to one side of the drilling machine 300 or from one side of the drilling machine 300 to one side of the drill rod storage box 100, so that the drill rod 112 is transferred; since the notch of the jaw 2012 faces downwards when the gripper 201 rotates to one side of the drilling machine 300, and the notch clamped when the gripper 201 rotates to one side of the drill rod storage box 100 faces upwards, the gripper 201 is not convenient to grab the drill rod 112, and the gripper 201 can be integrally rotated 180 degrees around the connecting shaft 205 by the arranged third driving element, so that the notch of the jaw 2012 faces downwards when the gripper 201 rotates to one side of the drill rod storage box 100, the gripper 201 can be directly buckled on the drill rod 112 from top to bottom, and the rotary rod 112 can be grabbed after clamping.

One side of the connecting beam 204 of the embodiment is provided with a limit stop rod 208 which is used for abutting against the bottom side of the feeding beam 302 of the drilling machine 300 so as to limit the rotation of the connecting beam 204 when the connecting beam 204 rotates to be parallel to and coplanar with the feeding beam 302; a limiting block 2092 is disposed on the mounting base plate 209 and configured to abut against the bottom of the connecting beam 204 to limit the rotation of the connecting beam 204 when the connecting beam 204 rotates to be parallel to the mounting base plate 209.

During rod grabbing, the movable roller 2015 is driven by the translational driving element 2016 to be close to the second fixed roller 2014 to clamp the rod 112 (as shown in fig. 4), after the rod 112 is grabbed, the first rotary driving element 203 works to drive the gripper 201 to integrally rotate around the positioning shaft 202 until the limit stop lever 208 stops (as shown in fig. 5) when abutting against the bottom side of the feed beam 302, and at this time, the connecting beam 204 is parallel to and coplanar with the feed beam 302 no matter how many working angles of the drilling machine 300 exist, namely, the rod 112 grabbed by the gripper 201 is parallel to and coplanar with the feed beam 302; and then the third rotary driving element 207 rotates the gripper 201 integrally around the connecting shaft 205 by 180 degrees, at this time, the notch of the clamping jaw 2012 faces upwards (as shown in fig. 6), and then the second driving element rotates the gripper 201 integrally around the connecting beam 204, so that the gripped drill rod 112 is positioned between the power head 301 and the original drill rod 112 (as shown in fig. 7), and then the gripped drill rod 112 is butted with the power head 301 and the existing drill rod 112, so that the rod adding work is completed, when the rod needs to be added again, the gripper 201 is rotated to the drill rod 112 on the drill rod storage box 100 only by reverse operation according to the steps, and then the steps are repeated.

In the embodiment, the two ends of the gripping arm 2011 are both provided with the connecting rods 2017, the connecting rod 2017 at one end is provided with the first positioning claw 2018 which is used for being matched with the outer wall of the connecting part of the power head 301 of the drilling machine 300, the connecting rod 2017 at the other end is provided with the second positioning claw 2019 which is used for being matched with the existing drill rod 112 on the drilling machine 300, and it is worth explaining that in the process that the gripper 201 rotates to enable the gripped drill rod 112 to be located between the power head 301 and the original drill rod 112, the first positioning claw 2018 is matched with the outer wall of the connecting part of the power head 301, and the second positioning claw 2019 is matched with the original drill rod 112 on the drilling machine 300.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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

1. A rod gripping mechanism comprising a gripper (201), and a drive assembly for driving the gripper (201) to move between a rod storage bin (100) and a drill rig (300), characterized in that: tongs (201) are including grabbing arm (2011), it is equipped with two at least clamping jaws (2012) along its length direction interval on grabbing arm (2011), be equipped with the notch on clamping jaw (2012), the lateral wall of notch is equipped with at least one first fixed roller (2013), opening part one side of notch is equipped with second fixed roller (2014), the opening part opposite side of notch is equipped with movable roller (2015), movable roller (2015) are connected with its translation drive element (2016) that is close to or keeps away from second fixed roller (2014) of drive, when pressing from both sides tight drilling rod (112), first fixed roller (2013), second fixed roller (2014) and movable roller (2015) all laminate with the outer wall of drilling rod (112).

2. The drill rod gripping mechanism of claim 1, wherein: drive assembly is including being used for with rig (300) feed beam (302) rotation center complex location axle (202), location axle (202) are connected with its pivoted first rotary driving element (203) of drive, be equipped with on location axle (202) rather than vertically tie-beam (204), the one end that location axle (202) were kept away from in tie-beam (204) is equipped with rather than vertically connecting axle (205), be equipped with drive connecting axle (205) on tie-beam (204) around tie-beam (204) pivoted second rotary driving element (206), grab arm (2011) and connecting axle (205) rotate to be connected, be equipped with on grab arm (2011) and drive it around connecting axle (205) pivoted third rotary driving element (207).

3. The drill rod gripping mechanism of claim 2, wherein: and one side of the connecting beam (204) is provided with a limit stop lever (208) which is used for abutting against the bottom side of the feeding beam (302) of the drilling machine (300) so as to limit the rotation of the connecting beam (204) when the connecting beam (204) rotates to be parallel to and coplanar with the feeding beam (302).

4. The drill rod gripping mechanism of claim 2, wherein: a mounting bottom plate (209) is arranged below the connecting beam (204), the first rotary driving element (203) is mounted on the mounting bottom plate (209), and a limiting block (2092) used for abutting against the bottom of the connecting beam (204) is arranged on the mounting bottom plate (209) so as to limit the rotation of the connecting beam (204) when the connecting beam (204) rotates to be parallel to the mounting bottom plate (209).

5. The drill rod gripping mechanism according to any one of claims 2 to 4, wherein: the first rotary drive element (203), the second rotary drive element (206) and the third rotary drive element (207) are all hydraulic motors.

6. The drill rod gripping mechanism according to any one of claims 1 to 4, wherein: the two ends of the gripper arm (2011) are respectively provided with a connecting rod (2017), the connecting rod (2017) at one end is provided with a first positioning claw (2018) matched with the outer wall of a connecting part of the power head (301) of the drilling machine (300), and the connecting rod (2017) at the other end is provided with a second positioning claw (2019) matched with the existing drill rod (112) on the drilling machine (300).

7. The drill rod gripping mechanism according to any one of claims 1 to 4, wherein: the translation drive element (2016) is a hydraulic cylinder.