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CN-122016374-A - Colliery geological exploration drilling sampling equipment

CN122016374ACN 122016374 ACN122016374 ACN 122016374ACN-122016374-A

Abstract

The invention relates to the technical field of drilling sampling equipment, in particular to drilling sampling equipment for geological exploration of coal mines. The automatic sampling device comprises a sampling rod and a sampling head, wherein the lower end of the sampling rod is provided with a connecting lug, the top of the sampling head is sunken to form a connecting groove, a hydraulic limiting assembly is arranged in the connecting groove, the connecting lug is detachably connected with the connecting groove, the hydraulic limiting assembly is used for compacting and positioning the connecting lug, two symmetrical adjusting grooves are formed in the side face of the sampling head, an auxiliary side roller is connected in the adjusting groove in a rotating mode, a hydraulic connecting assembly is arranged at the joint of the auxiliary side roller and the sampling head, and a hydraulic cylinder is connected between the hydraulic connecting assembly and the hydraulic limiting assembly. The problems of low efficiency, easy sample damage, poor adaptability and the like of the traditional drilling sampling equipment are effectively solved.

Inventors

  • ZHAO YANPENG
  • WEI KAI
  • Qin Daoxia
  • Xi Baoyin
  • LI YONG
  • LI YANQIANG
  • GUO QING

Assignees

  • 肥城矿业集团单县能源有限责任公司

Dates

Publication Date
20260512
Application Date
20251231

Claims (8)

  1. 1. The coal mine geological detection drilling sampling equipment is characterized by comprising a sampling rod (1) and a sampling head (2), wherein the lower end of the sampling rod (1) is provided with a connecting lug (3), the top of the sampling head (2) is sunken to form a connecting groove (4), a hydraulic limiting assembly is arranged in the connecting groove (4), the connecting lug (3) is detachably connected with the connecting groove (4), and the hydraulic limiting assembly is used for compacting and positioning the connecting lug (3); Two symmetrical regulating grooves (5) are formed in the side face of the sampling head (2), auxiliary side rollers (7) are connected to the regulating grooves (5) in a rotating mode, hydraulic connecting assemblies are arranged at the connecting positions of the auxiliary side rollers (7) and the sampling head (2), hydraulic cylinders (6) are connected between the hydraulic connecting assemblies and the hydraulic limiting assemblies, when the hydraulic limiting assemblies are used for pressure release, the two hydraulic connecting assemblies are used for pressurizing, the two auxiliary side rollers (7) respectively rotate outwards and inwards, dislocation is achieved between the sampling head (2) and the sampling rod (1), the sampling rod (1) is continuously rotated at the moment in a squeezed mode, and the sampling rod (1) can be separated from a geological layer.
  2. 2. The coal mine geological exploration drilling sampling equipment is characterized in that a fixing nut (8) is arranged on the side face of the connecting groove (4), a limiting hole is formed in the connecting lug (3), when the connecting lug (3) stretches into the connecting groove (4), the limiting hole is opposite to the axis of the fixing nut (8), the fixing nut (8) is detachably connected with a limiting bolt (9), and the connecting lug (3) can move along the length direction of the limiting bolt (9).
  3. 3. A coal mine geological exploration drilling sampling apparatus as claimed in claim 1, wherein the width of said connecting slot (4) is greater than the width of the connecting lug (3); The hydraulic pressure spacing subassembly includes first spacing chamber (10) and spacing cock stem (11), the one end of spacing cock stem (11) slides and sets up in first spacing chamber (10), the other end of spacing cock stem (11) stretches into inside of spread groove (4), spacing cock stem (11) are used for pushing up tight engaging lug (3), make engaging lug (3) and sampling head (2) fixed assembly.
  4. 4. The coal mine geological exploration drilling sampling equipment is characterized in that two hydraulic connection assemblies are arranged in a central symmetry mode, each hydraulic connection assembly comprises a circular-arc-shaped second limiting cavity (12), a connecting shaft of each auxiliary side roller (7) is provided with a hydraulic sheet (13), the connecting shaft and the second limiting cavity (12) are coaxially arranged, and the hydraulic sheet (13) can swing against the circular-arc inner wall of the second limiting cavity (12); Two first hydraulic pipes (14) are arranged at one end of the hydraulic cylinder (6), two second hydraulic pipes (15) are arranged at the other end of the hydraulic cylinder (6), the two first hydraulic pipes (14) are respectively communicated with the two hydraulic limiting assemblies, and the outer ends of the two second hydraulic pipes (15) are respectively communicated with the second limiting cavities (12) of the two hydraulic connecting assemblies.
  5. 5. A drilling and sampling device for geological exploration in coal mines, as claimed in claim 1, characterized in that the auxiliary side roller (7) comprises a connecting roller (16) and an auxiliary roller (17), the connecting roller (16) is rotationally connected with the sampling head (2), the auxiliary roller (17) is rotationally connected with the connecting roller (16), and when the hydraulic limiting assembly is depressurized, the hydraulic connecting assembly is pressurized to enable the connecting roller (16) to rotate.
  6. 6. A drilling and sampling device for geological exploration of coal mines according to claim 1, wherein the hydraulic cylinder (6) is embedded in the sampling head (2).
  7. 7. A drilling and sampling device for geological exploration in coal mines, as claimed in claim 1, characterized in that the bottom of the sampling head (2) is provided with cutting teeth (18).
  8. 8. The drilling and sampling device for geological exploration of coal mine, as set forth in claim 1, wherein the two auxiliary side rollers (7) are a first side roller and a second side roller respectively, the first side roller rotates outwards when the hydraulic limiting assembly is depressurized, the second side roller rotates towards the inner side of the sampling head (2), and when the sampling head (2) and the sampling rod (1) are dislocated, the first side roller abuts against the inner wall of the sampling hole, and the second side roller abuts against the sample column.

Description

Colliery geological exploration drilling sampling equipment Technical Field The invention relates to the technical field of drilling sampling equipment, in particular to drilling sampling equipment for geological exploration of coal mines. Background Drilling and sampling are key links in acquiring samples of subterranean formations during geological exploration in coal mines. Traditional drilling sampling equipment adopts fixed sampling head and sampling rod lug connection's mode generally, after the sample is accomplished, needs to propose whole equipment from the sample hole, and rethread external force is strikeed or is vibrated and makes sample post and sampling head separation. This approach has the following problems: the sampling efficiency is low, the equipment is required to be integrally lifted out after each sampling, the operation is complex, and the time consumption is long. And the sample is easy to damage, namely when the sample column is separated, the sample is easy to break or damage the structure due to external force knocking, and the accuracy of geological analysis is influenced. The adaptability of the equipment is poor, and in complex geological layers (such as soft and broken rock layers), the sampling head is easy to be blocked, and a complete sample is difficult to take out smoothly. Therefore, there is a need for a drilling and sampling device for coal mine geological exploration, which can realize rapid and nondestructive sampling, has strong adaptability and is stable in connection. Disclosure of Invention In order to solve the problems, the invention provides a drilling and sampling device for geological exploration of a coal mine. The technical scheme adopted for solving the technical problems is that the coal mine geological exploration drilling sampling equipment comprises a sampling rod and a sampling head, wherein the lower end of the sampling rod is provided with a connecting lug, the top of the sampling head is sunken to form a connecting groove, a hydraulic limiting component is arranged in the connecting groove and is detachably connected with the connecting groove, and the hydraulic limiting component is used for compacting and positioning the connecting lug; The side of sampling head has been seted up two symmetrical regulating grooves, the inside rotation of regulating groove is connected with supplementary side roller, the junction configuration of supplementary side roller and sampling head has hydraulic coupling assembling, be connected with the pneumatic cylinder between hydraulic coupling assembling and the spacing subassembly of hydraulic pressure, works as when the spacing subassembly of hydraulic pressure is released, two the pressurization of hydraulic coupling assembling makes two supplementary side rollers outwards rotate respectively and inwards rotate, misplacement between sampling head and the sampling pole, squeezes tightly between sampling head and the sample post, continues to rotate the sampling pole this moment, can make sample post and geological strata separation. As optimization, fixing nuts are arranged on the side faces of the connecting grooves, limiting holes are formed in the connecting lugs, when the connecting lugs extend into the connecting grooves, the limiting holes are opposite to the axes of the fixing nuts, the fixing nuts are detachably connected with limiting bolts, and the connecting lugs can move along the length directions of the limiting bolts. As optimization, the width of the connecting groove is larger than that of the connecting lug; The hydraulic spacing subassembly includes first spacing chamber and spacing cock stem, the one end slip of spacing cock stem sets up in first spacing intracavity, the other end of spacing cock stem stretches into the inside of spread groove, the spacing cock stem is used for pushing up tight engaging lug, makes engaging lug and sampling head fixed assembly. As optimization, the two hydraulic connecting assemblies are arranged in a central symmetry manner, each hydraulic connecting assembly comprises a circular arc-shaped second limiting cavity, a connecting shaft of each auxiliary side roller is provided with a hydraulic sheet, the connecting shaft and the second limiting cavity are arranged in a coaxial manner, and the hydraulic sheets can swing against the circular arc inner wall of the second limiting cavity; Two first hydraulic pipes are arranged at one end of the hydraulic cylinder, two second hydraulic pipes are arranged at the other end of the hydraulic cylinder, the two first hydraulic pipes are respectively communicated with the two hydraulic limiting assemblies, and the outer ends of the two second hydraulic pipes are respectively communicated with the second limiting cavities of the two hydraulic connecting assemblies. As the optimization, supplementary side roller includes connecting roller and auxiliary roller, the connecting roller rotates with the sampling head to be connecte