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CN-122014127-A - Elastic clamping structure of drill rod

CN122014127ACN 122014127 ACN122014127 ACN 122014127ACN-122014127-A

Abstract

The invention provides a drill rod elastic clamping structure, which relates to the technical field of drill rod locking and comprises a positioning main ring, wherein six groups of equidistant sliding convex blocks are integrally arranged outside the positioning main ring, positioning seats for installation are fixedly arranged outside the sliding convex blocks, six groups of equidistant supporting convex blocks are integrally arranged outside the bottom supporting ring, the supporting convex blocks are vertically aligned with the sliding convex blocks, supporting guide rods are fixedly arranged at the tops of the supporting convex blocks and are in sliding connection with the sliding convex blocks, and a top ring is fixedly arranged at the top end of the supporting guide rod.

Inventors

  • WANG SHIBIN

Assignees

  • 山东天启智能装备有限公司

Dates

Publication Date
20260512
Application Date
20260306

Claims (8)

  1. 1. A drill rod elastic clamping structure is characterized by comprising a positioning main ring (1), six groups of equidistant sliding convex blocks (101) are integrally arranged on the outer portion of the positioning main ring (1), positioning seats (102) used for installation are fixedly arranged on the outer portions of the sliding convex blocks (101), six groups of equidistant supporting convex blocks (201) are integrally arranged on the outer portion of the bottom supporting ring (2), the supporting convex blocks (201) are vertically aligned with the sliding convex blocks (101), supporting guide rods (3) are fixedly arranged on the tops of the supporting convex blocks (201), the supporting guide rods (3) are in sliding connection with the sliding convex blocks (101), top rings (4) are fixedly arranged on the top ends of the supporting guide rods (3), movable supporting rings (5) are fixedly arranged above the outer portions of the supporting guide rods (3), six groups of guide tables (501) are integrally arranged in the movable supporting rings (5), the number of the main clamping seats (6) is six groups, the main clamping seats (6) are located in the movable supporting rings (5), the guide tables (501) are aligned with the guide tables (501), two ends of the guide tables (601) are uniformly hinged to one sides of the main clamping seats (501) which are close to one side of the main clamping frames (601), the U-shaped sliding frame (7) is in sliding connection with the movable supporting ring (5).
  2. 2. The elastic clamping structure of the drill rod according to claim 1, wherein six groups of lower hinge seats (103) are integrally arranged at the top of the positioning main ring (1), the six groups of lower hinge seats (103) are distributed in an equidistant surrounding mode, the lower hinge seats (103) are aligned with one group of sliding lugs (101), and lower connecting rods (104) are hinged to two sides of the lower hinge seats (103).
  3. 3. A resilient clamping structure for drill rod as claimed in claim 2, wherein the lower connecting rods (104) are aligned below a group of main clamping holders (6), and the other ends of the lower connecting rods (104) are hinged in the middle of hinge-connecting frames (601) at two outer sides of the main clamping holders (6).
  4. 4. The elastic clamping structure for the drill rod, as claimed in claim 1, is characterized in that an oil way is formed in the bottom support ring (2), an electromagnetic valve (202) is fixedly connected to one side of the bottom support ring (2), six groups of hydraulic cylinders (203) are fixedly arranged at the top of the bottom support ring (2), the positions of the hydraulic cylinders (203) are staggered with the support protrusions (201), the bottoms of the hydraulic cylinders (203) penetrate through the oil way in the bottom support ring (2) to be communicated with the electromagnetic valve (202), and the top ends of the hydraulic cylinders (203) are fixedly arranged at the bottom of the positioning main ring (1).
  5. 5. A drill rod elastic clamping structure according to claim 3, wherein six groups of inner hinging seats (401) are integrally arranged on the inner side of the top ring (4), the six groups of inner hinging seats (401) are distributed in an equidistant surrounding mode, an upper connecting rod (402) is hinged in each inner hinging seat (401), and the other end of the upper connecting rod (402) is coaxially hinged with the upper end of the lower connecting rod (104).
  6. 6. The elastic clamping structure of the drill rod, as set forth in claim 1, is characterized in that a side, close to the center of the movable supporting ring (5), of the main clamping seat (6) is uniformly provided with transverse protruding anti-slip lines, two sides of the main clamping seat (6) are hinged with side clamping seats (602), and a side, close to the center of the movable supporting ring (5), of the side clamping seats (602) is uniformly provided with vertical protruding anti-slip lines.
  7. 7. The elastic clamping structure of the drill rod according to claim 6, wherein a limiting structure is integrally arranged on one side, close to the main clamping seat (6), of the side clamping seat (602), and the limiting structure limits the maximum included angle between the side clamping seat (602) and the main clamping seat (6) to be 30 degrees.
  8. 8. The elastic clamping structure of drill rod according to claim 7, wherein a plurality of groups of spring groups (603) are hinged between the hinge connecting rod frame (601) and the farthest edges of the side clamping seats (602), and the spring groups (603) are composed of middle springs and hinge seats at two sides and are fixed through welding.

Description

Elastic clamping structure of drill rod Technical Field The invention relates to the technical field of drill rod locking, in particular to an elastic clamping structure of a drill rod. Background The drill rod is heavy and suspended in the well, the power is released and easy to fall to cause accidents, the device is needed to brake and hold tightly, the drill rod is also needed to be fixed when being disassembled, the rotation and the sliding of the drill rod are prevented, the threads are damaged, the safety is ensured, the elastic clamping is realized through a spring or an elastic body, the drill rod is not damaged, the automatic centering and the shock absorption can be realized, the clamping is uniform, and the device is essentially a strong brake with a buffer. The clamping structure used at present has the following disadvantages: in order to ensure that the clamping effect is provided with anti-slip lines, the unidirectional lines cannot provide bidirectional anti-slip effects, the bidirectional lines are arranged to reduce the area of the unidirectional lines, stable clamping is not facilitated, and the clamping device mainly used at present is positioned by surrounding the clamping blocks which are directly gathered through hydraulic driving on the inner side of the circular ring or the cylinder, so that the deformation resistance is poor. Disclosure of Invention In view of the above, the present invention provides an elastic clamping structure for a drill rod, which overcomes the above-mentioned drawbacks of the prior art. The invention provides a drill rod elastic clamping structure which comprises a positioning main ring, wherein six groups of equidistant sliding protruding blocks are integrally arranged on the outer portion of the positioning main ring, positioning seats used for installation are fixedly arranged on the outer portions of the sliding protruding blocks, a bottom supporting ring is integrally arranged on the outer portion of the bottom supporting ring, six groups of equidistant supporting protruding blocks are integrally arranged on the outer portion of the bottom supporting ring, the supporting protruding blocks are vertically aligned with the sliding protruding blocks, supporting guide rods are fixedly arranged on the tops of the supporting protruding blocks, the supporting guide rods are slidably connected with the sliding protruding blocks, a top ring is fixedly arranged on the top ends of the supporting guide rods, movable supporting rings are slidably arranged above the outer portions of the supporting guide rods, six groups of guide tables are integrally arranged in the movable supporting rings, the number of the main clamping seats is six, the main clamping seats are aligned with the guide tables, hinging corner brackets are uniformly arranged at two ends of one side of the main clamping seats, which are close to the guide tables, U-shaped sliding brackets are fixedly arranged outside the hinging corner brackets, and are slidably connected with the movable supporting rings. Optionally, the top integral type of location main ring is provided with six and is articulated the seat down, and six are articulated the seat down and are the equidistance and encircle the distribution, and articulated seat down all aligns with a set of slip lug, and articulated both sides of seat down all are provided with the connecting rod. Optionally, the lower connecting rods are aligned below a group of main clamping seats, and the other ends of the lower connecting rods are hinged to the middle of the hinged crutch frames at two sides outside the main clamping seats. Optionally, an oil way is formed in the bottom support ring, an electromagnetic valve is fixedly connected to one side of the bottom support ring, six groups of hydraulic cylinders are fixedly arranged at the top of the bottom support ring, the positions of the hydraulic cylinders are staggered with the support convex blocks, the bottoms of the hydraulic cylinders penetrate through the inner oil way of the bottom support ring and are communicated with the electromagnetic valve, the top ends of the hydraulic cylinders are fixedly arranged at the bottom of the positioning main ring, the outer part of the electromagnetic valve is connected with a hydraulic pump, and hydraulic oil can be input or output after the electromagnetic valve is opened to control lifting of the hydraulic cylinders. Optionally, the inboard integral type of top ring is provided with six sets of interior articulated seats, and six sets of interior articulated seats are equidistance and encircle the distribution, all articulate in the interior articulated seat and be provided with the connecting rod, and the other end of going up the connecting rod is coaxial articulated with the upper end of lower connecting rod. Optionally, the side of main grip slipper is close to the movable support ring center is evenly provided with horizontal salient anti-skidding line,