CN-121556795-B - Mast assembly and hydraulic core drilling machine

CN121556795BCN 121556795 BCN121556795 BCN 121556795BCN-121556795-B

Abstract

The invention relates to a mast assembly and a hydraulic core drilling machine, wherein the mast assembly comprises a main mast, an auxiliary mast, a telescopic driver and two track brackets, the main mast is slidably sleeved on the auxiliary mast, the telescopic driver is arranged in the main mast and is connected with the auxiliary mast, the track brackets comprise bracket beams, first sliding rails and second sliding rails, the first sliding rails and the second sliding rails are arranged on two sides of the bracket beams in parallel and are Z-shaped, the two bracket beams of the two track brackets are symmetrically arranged on two sides of the main mast, the two first sliding rails form a first track, the two second sliding rails form a second track, the first track and the second track extend along the length direction of the main mast, the first track is used for installing a power assembly for clamping a drill rod, and the main mast is slidably connected with a drilling machine main body through the second track. The core exploratory drilling machine has the beneficial effects of realizing the comprehensive effects of functional integration, compact structure, balanced stress and high efficiency of pore forming, and adapting to the core performance requirement of the core exploratory drilling machine on the mast assembly.

Inventors

ZHANG HUI
MIAO JIAJIA
ZHANG YAQIU
MOU HONGBO
GAO MINGSHUAI
SUN WEINA
Xue Shanzhong
ZHU JIANGLONG
SONG ZHILIANG
PENG LI
HE LEI

Assignees

中国地质装备集团有限公司
中地装(北京)科学技术研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20250930

Claims (7)

1. A mast assembly, comprising: a main mast (1), a secondary mast (2), a telescopic driver (3) and two track brackets (4); the main mast (1) is slidably sleeved on the auxiliary mast (2), and the telescopic driver (3) is arranged inside the main mast (1) and is connected with the auxiliary mast (2) to drive the auxiliary mast (2) to slide along the main mast (1) to realize extension and contraction; the track bracket (4) comprises a bracket beam (41), a first sliding rail (42) and a second sliding rail (43); The first sliding rail (42) and the second sliding rail (43) are arranged on two sides of the support beam (41) in parallel, and are Z-shaped in a cross section view; two support beams (41) of the two track supports (4) are symmetrically arranged on two sides of the main mast (1), two first sliding rails (42) form a first track, and two second sliding rails (43) form a second track; the main mast (1) is slidably connected to the drilling machine main body (6) through a second track, and the drilling machine main body (6) can drive the main mast (1) to slide; the device also comprises a first friction positioning assembly and a second friction positioning assembly; The first friction positioning assembly is arranged at the top end of the main mast (1), the main mast (1) is abutted against the auxiliary mast (2) through the first friction positioning assembly, the second friction positioning assembly is arranged at the bottom end of the auxiliary mast (2), and the auxiliary mast (2) is abutted against the main mast (1) through the second friction positioning assembly; In the sliding process of the auxiliary mast (2) driven by the telescopic driver (3), the auxiliary mast (2) is rubbed by the first friction positioning assembly, the main mast (1) is rubbed by the second friction positioning assembly, and after the driving is stopped, the auxiliary mast (2) and the main mast (1) are respectively positioned by friction force of the first friction positioning assembly and the second friction positioning assembly; the first friction positioning assembly comprises a chuck (71), a backing plate (72), a friction block (73) and a gap adjusting assembly; The chuck (71) is clamped on the main mast (1), the gap adjusting assembly is mounted on the chuck (71), the base plate (72) is positioned between the gap adjusting assembly and the chuck (71), and the gap adjusting assembly is abutted against the auxiliary mast (2) through the friction block (73); the clearance adjustment assembly comprises an adjustment head (74), a fixed nut (75) and an adjustment nut (76); The adjusting head (74) can axially slide along the adjusting head to penetrate through the middle parts of the chuck (71) and the backing plate (72), the fixing nut (75) and the adjusting nut (76) are connected with the adjusting head (74) in a threaded mode, and the friction block (73) is fixedly arranged at the end portion of the adjusting head (74); the axial movement of the adjusting head (74) is realized by rotating the adjusting nut (76), so that the clearance between the friction block (73) and the auxiliary mast (2) is adjusted.
2. The mast assembly of claim 1, A drill rod guide assembly (11) and a power head driver (12) are arranged on the main mast (1); The drill rod guide assembly (11) is slidably arranged on the first guide rail, the lifting driver is arranged between the two first guide rails (42) and is connected with the drill rod guide assembly (11) and the power assembly (5) so as to drive the drill rod guide assembly (11) and the drill rod to synchronously lift in the process of lifting the drill rod.
3. The mast assembly of claim 1, The device also comprises a forehead (21) and a rotation driver (22); The forehead (21) is rotatably arranged at the top end of the auxiliary mast (2), and two ends of the rotation driver (22) are connected with the auxiliary mast (2) and the forehead (21) so as to drive the forehead (21) to rotate in a horizontal plane.
4. The mast assembly of claim 1, The front side and the rear side of the main mast (1) are provided with a plurality of first through holes (13) which are uniformly distributed along the length direction; the left side and the right side of the auxiliary mast (2) are provided with a plurality of second through holes (23) which are uniformly distributed along the length direction.
5. A hydraulic core drilling machine, comprising the mast assembly of any one of claims 1-4; the drilling machine also comprises a drilling machine main body (6) and a heat dissipation assembly; the heat dissipation assembly is provided with a drilling machine main body (6); when the mast assembly is in a horizontal state, the main mast (1) is lapped on the heat dissipation assembly.
6. The hydraulic core drilling machine of claim 5, wherein, The heat dissipation assembly comprises a main heat radiator (81), a secondary heat radiator (82) and a bracket (83); The support (83) is positioned at one side of the main radiator (81), the auxiliary radiator (82) is positioned in the support (83), and the main mast (1) is lapped on the support (83) when the mast assembly is in a horizontal state.
7. The hydraulic core drilling machine of claim 5, wherein, The drilling machine main body (6) comprises a vehicle body (61), a thrust oil cylinder assembly (62) and a mast lifting driver (63); The thrust cylinder assembly (62) is rotatably arranged on the vehicle body (61), the main mast (1) can slidably push the cylinder assembly (62) through the second track, the cylinder assembly (62) can drive the mast assembly to rotate in the horizontal plane, one end of the mast lifting driver (63) is connected to the outer side of the main mast (1), and the other end of the mast lifting driver (63) is connected to the cylinder assembly (62) so as to drive the mast assembly to lift.

Description

Mast assembly and hydraulic core drilling machine Technical Field The invention relates to the technical field of geological exploration, in particular to a mast assembly and a hydraulic core drilling machine. Background The mast assembly is a core bearing and guiding component of drilling machine equipment, and the performance of the mast assembly directly determines the precision, efficiency and safety of core exploration operation. On one hand, the mast is required to support the weight of the drilling tool and guide the drilling tool to stably lift along the direction of the guide rail, and ensure that the drilling tool keeps a stable drilling track in a complex stratum through the hydraulic control system, and on the other hand, the mast is required to provide a mounting foundation and a moving guide for a power assembly (such as a slip mechanism for clamping a drilling rod and a power head for driving the drilling tool to rotate) and can adapt to clamping and transferring requirements of the drilling rods with different specifications. With the development of industry to high-end, light-weight and intelligent, a drilling machine has higher requirements on the functional integration level of a mast assembly. At present, the patent with the publication number of CN217380425U discloses a mast assembly and a rotary drilling rig, the mast assembly comprises a mast, an amplitude variation mechanism, a first drill rod drilling tool, a second drill rod drilling tool, a mast oil cylinder, a suspension anchor frame, a follow-up frame, a pressurizing oil cylinder and a power head, one side of the amplitude variation mechanism is used for being connected to an upper carriage of the rotary drilling rig, the other side of the amplitude variation mechanism is respectively connected with one ends of the mast and the mast oil cylinder, the other end of the mast oil cylinder is connected to the mast, the mast comprises a lower mast and a sub-mast, the sub-mast is used for being connected with the lower mast, the suspension anchor frame is arranged at the top of the lower mast or the top of the sub-mast, the follow-up frame and the power head are movably arranged on the mast, and the first drill rod drilling tool and the second drill rod drilling tool are alternatively connected to the follow-up frame. The rotary drilling rig is switched between the low-clearance working state and the standard working state by arranging the detachable sub-mast and the first and second drilling rod tools which are alternatively used, so that the utilization rate of the whole machine and the hole forming efficiency are effectively improved, and the cost of the machine is reduced. However, the core of the scheme focuses on 'working state switching', the track design optimization of the mast is not involved, the power head and the follow-up frame of the scheme are movably arranged on the mast, the conventional single-track or distributed track layout is still adopted, the problem of dual function integration of 'power assembly installation' and 'mast self sliding' cannot be solved, and the influence of the track layout on stress balance and movement precision is not considered. Disclosure of Invention First, the technical problem to be solved In view of the above-mentioned shortcomings and disadvantages of the prior art, the present invention provides a mast assembly and a hydraulic core drilling machine, which solve the technical problem that the prior art cannot meet the technical requirements. (II) technical scheme In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps: The invention provides a mast assembly, which comprises a main mast, a secondary mast, a telescopic driver and two track brackets, wherein the main mast is slidably sleeved in the secondary mast, the telescopic driver is arranged in the main mast and is connected with the secondary mast to drive the secondary mast to slide along the main mast to realize extension and contraction, the track brackets comprise bracket beams, first sliding rails and second sliding rails, the first sliding rails and the second sliding rails are arranged on two sides of the bracket beams in parallel, the three are Z-shaped in a cross section view, the two bracket beams of the two track brackets are symmetrically arranged on two sides of the main mast, the two first sliding rails form a first track, the two second sliding rails form a second track, the first track and the second track extend along the length direction of the main mast, the first track is used for installing a power assembly for clamping a drill rod, the main mast is slidably connected with a drilling machine main body through the second track, and the drilling machine main body can drive the main mast to slide. Optionally, the mast assembly further comprises a first friction positioning assembly and a second friction positioning assembly; the first friction positio