Geological exploration drilling rig

Abstract

The invention belongs to the technical field of geological exploration, and particularly relates to a geological exploration drilling rig which is characterized in that a connecting bracket is always embedded into a supporting frame, so that a protective shell on the outer side is subjected to a rotation hindering effect; the protective shell can drive the drilling tool body in the protective shell to move horizontally and is matched with the extension assembly to increase the drilling depth; due to the fact that the main gear is meshed with the different-face gears in an annular array, under gear transmission, the different-face gears can drive the first threaded rod connected to the middle of the different-face gears to rotate, due to the fact that the fixing frame is fixedly connected to the inner side of the positioning cover, the supporting plate cannot play a role in following rotation, and under cooperation of the lead screw, the supporting plate can rotate. The external expansion type baffle can horizontally and outwards drive the inclined push plate at the bottom to stably expand in the forming direction of the supporting plate, the external expansion type baffle can drive the inclined push plate at the bottom to push disintegrating slag drilled by the drill bit aside outwards, and the disintegrating slag is prevented from being poured in along a gap of a drill hole and causing collapse.

Description

Technical Field

[0001] The invention belongs to the technical field of geological survey, and in particular relates to a geological prospecting drilling device. Background Art

[0002] Geotechnical engineering investigation refers to the identification, analysis and evaluation of the geological and environmental characteristics and geotechnical conditions of the target construction site according to the requirements of the construction project. Geotechnical investigation requires decentralized investigation of multiple sampling sites in the same area to obtain an underground rock and soil distribution map of the target construction site, from which the natural conditions such as the underground topography, landform and hydrology of the construction area are analyzed to help with later construction planning.

[0003] In the prior art, when the drilling equipment is in use, its drilling depth is a specified depth, and no relevant auxiliary extension structure is provided, so that the drilling distance is limited and the practicality is average.

[0004] Therefore, a geological exploration drilling device is designed to solve the above problems. Summary of the invention

[0005] To solve the problems raised in the above background technology. The present invention provides a geological exploration drilling device, which can be driven by a crawler vehicle body to the drilling site. In order to increase the drilling depth of the device, when the connecting bracket is located at the top of the threaded rod 2, the bottom of the protective shell is located at the bottom of the support frame. During operation, the running stepper motor drives the threaded rod 2. Since the connecting bracket is always embedded in the support frame, the outer protective shell is hindered from rotating. Under the cooperation of the thread surface of the threaded rod 2 and the screw with the built-in thread groove, the protective shell can drive the internal drill body to move horizontally, and cooperate with the extension component to increase the drilling depth.

[0006] During the extension process, the lifting cylinder inside the protective shell is started through the control end, and its piston end pushes the connecting column, which pushes the bottom positioning cover downward and drives the outward-expanding baffle and the drill body downward and extends out of the protective shell, and the drilling operation is completed by the built-in motor of the drill body; at the same time, under the action of the driving motor, the outward-expanding baffle can drive the inclined push plate at the bottom to push the debris drilled out from the drill bit outward, so as to prevent the debris from pouring into the gap along the drill hole and causing collapse.

[0007] During the slag discharge process, the driving motor on the inner side of the positioning cover can be started, and its motor shaft drives the main gear to rotate. Since the main gear is meshed with the eccentric gears of the annular array, under the gear transmission, the eccentric gears can drive the threaded rod connected to the middle part to rotate. Since the fixing frame is fixedly connected to the inner side of the positioning cover, the support plate cannot play a follow-up rotation effect, and with the cooperation of the screw rod, the outward-expanding baffle can drive the inclined push plate at the bottom to expand steadily horizontally outward along the opening direction of the support plate, thereby achieving the slag discharge effect and preventing collapse.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a geological exploration drilling device, comprising a flexible drilling mechanism, wherein the flexible drilling mechanism comprises a tracked vehicle body, a support frame, a protective shell, a drill tool body, a lifting assembly and an extension assembly, wherein the support frame is fixedly connected to the outside of the tracked vehicle body, the protective shell is slidably sleeved on the outside of the support frame, the drill tool body is movably connected to the inside of the protective shell, the lifting assembly is fixedly connected to the top of the protective shell, and the extension assembly is sleeved on the inside of the protective shell.

[0009] As a preferred geological exploration drilling device of the present invention, the extension assembly includes a lifting cylinder, a connecting column and a positioning cover, the lifting cylinder is threadedly connected to the inner side of the protective shell, the top of the connecting column is fixedly connected to the piston end of the lifting cylinder, the middle part of the top end of the positioning cover is fixedly connected to the bottom of the connecting column, and the lower end of the positioning cover is also provided with a flared portion.

[0010] As a preferred geological exploration drilling device of the present invention, the flaring part includes a driving motor, a main gear, an eccentric gear, an outward-expanding baffle and a support plate, the top of the main gear is fixedly connected to the motor shaft of the driving motor through a coupling, the outer teeth of the eccentric gear are meshed with the main gear, and the inner wall of the outward-expanding baffle is fixedly connected to the surface of the support plate.

[0011] As a preferred geological exploration drilling device of the present invention, a fixing frame and a threaded rod 1 are also provided at the upper end of the support plate, the fixing frame is fixedly connected to the inner side of the bottom of the positioning cover, and the bottom of the fixing frame is rotatably connected to the top of the drill bit body, and the threaded rod 1 passes through the top of the support plate and is fixedly connected to the middle part of the eccentric gear.

[0012] As a preferred geological exploration drilling device of the present invention, the lifting assembly includes a stepper motor, a second threaded rod and a connecting bracket, the stepper motor is threadedly connected to the top of the support frame, the top of the second threaded rod is fixedly connected to the motor shaft of the stepper motor through a coupling, and the connecting bracket is threadedly sleeved on the outside of the second threaded rod.

[0013] As a preferred geological exploration drilling device of the present invention, a thread groove matching the size of the threaded rod is formed through the inner side of the connecting bracket.

[0014] As a preferred geological exploration drilling device of the present invention, the outer side of the bottom of the drill body is also provided with inclined push plates in a circular array.

[0015] As a preferred geological exploration drilling device of the present invention, the outward-expanding baffles are provided in a plurality of groups, and a plurality of groups of the outward-expanding baffles are arranged in an annular array on the outside of the drilling tool body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, in order to increase the drilling depth of the device, when the connecting bracket is located at the top of the threaded rod 2, the bottom of the protective shell is located at the bottom of the support frame. During operation, the running stepper motor drives the threaded rod 2. Since the connecting bracket is always embedded in the support frame, the outer protective shell is hindered from rotating. With the cooperation of the thread surface of the threaded rod 2 and the screw with the built-in thread groove, the protective shell can drive the internal drill body to move horizontally, and cooperate with the extension component to increase the drilling depth.

[0018] 2. In the present invention, the lifting cylinder inside the protective shell is started by the control end, and its piston end pushes the connecting column, which pushes the bottom positioning cover downward and drives the outward-expanding baffle and the drill body downward and extends out of the protective shell, and the drilling operation is completed by the built-in motor of the drill body; at the same time, under the action of the driving motor, the outward-expanding baffle can drive the inclined push plate at the bottom to push the debris drilled out from the drill bit outward, so as to prevent the debris from pouring into the gap along the drill hole and causing collapse.

[0019] 3. In the present invention, since the main gear is meshed with the eccentric gears of the annular array, under the gear transmission, the eccentric gears can drive the threaded rod connected in the middle thereof to rotate. Since the fixing frame is fixedly connected to the inner side of the positioning cover, the support plate cannot play a follow-up rotation effect. With the cooperation of the screw rod, the outward-expanding baffle plate can drive the inclined push plate at the bottom to expand stably horizontally outward along the opening direction of the support plate, thereby achieving the slag discharge effect and preventing collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a front view of the supporting base and the protective shell in the present invention;

[0023] Figure 3 is a distribution diagram of the thread grooves in the present invention;

[0024] Figure 4 is a cross-sectional view of the interior of the protective housing of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the inclined push plate in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the flaring portion in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the outward-expanding baffle in the present invention;

[0028] In the figure:

[0029] 1. Flexible drilling mechanism; 11. Crawler vehicle body; 12. Support frame; 13. Protective shell; 14. Drill tool body; 15. Lifting assembly; 151. Stepper motor; 152. Threaded rod two; 153. Connecting bracket; 16. Extension assembly; 162. Lifting cylinder; 163. Connecting column; 164. Positioning cover; 2. Expanding part; 21. Driving motor; 22. Main gear; 23. Heterochromatic gear; 24. Outward expansion baffle; 25. Support plate; 3. Fixed frame; 4. Threaded rod one; 5. Threaded groove; 6. Inclined push plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 As shown:

[0032] A geological exploration drilling device. Geotechnical engineering investigation refers to the identification, analysis and evaluation of the geological and environmental characteristics and geotechnical conditions of the target construction site according to the requirements of the construction project. Geotechnical investigation requires decentralized investigation of multiple sampling sites in the same area to obtain an underground rock and soil distribution state map of the target construction site, from which the natural conditions such as the topography, landform and hydrology of the underground construction area are analyzed to help the later construction planning. In the prior art, when the drilling equipment is in use, its drilling depth is a specified depth, and no relevant auxiliary extension structure is set, so that the drilling distance is limited and the practicality is general. On this basis, a flexible drilling mechanism 1 is added.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown:

[0034] In an optional embodiment: the flexible drilling mechanism 1 includes a tracked vehicle body 11, a support frame 12, a protective shell 13, a drilling tool body 14, a lifting assembly 15 and an extension assembly 16. The support frame 12 is fixedly connected to the outside of the tracked vehicle body 11, the protective shell 13 is slidably sleeved on the outside of the support frame 12, the drilling tool body 14 is movably connected to the inside of the protective shell 13, the lifting assembly 15 is fixedly connected to the top of the protective shell 13, the extension assembly 16 is sleeved inside the protective shell 13, the lifting assembly 15 includes a stepper motor 151, a threaded rod 152 and a connecting bracket 153. The stepper motor 151 is threadedly connected to the top of the support frame 12, the top of the threaded rod 152 is fixedly connected to the motor shaft of the stepper motor 151 through a coupling, and the connecting bracket 153 is threadedly sleeved on the outside of the threaded rod 152.

[0035] In this embodiment: the device can drive the crawler vehicle body 11 to the drilling site. In order to increase the drilling depth of the device, when the connecting bracket 153 is located at the top of the threaded rod 152, the bottom of the protective shell 13 is located at the bottom of the support frame 12. During operation, the running stepper motor 151 drives the threaded rod 152. Since the connecting bracket 153 is always embedded in the support frame 12, the outer protective shell 13 is hindered from rotating. Under the cooperation of the thread surface of the threaded rod 152 and the screw of the built-in thread groove 5, the protective shell 13 can drive the internal drill bit body 14 to move horizontally, and cooperate with the extension component 16 to increase the drilling depth.

[0036] More specifically:

[0037] like Figure 2 , Figure 4 and Figure 5 As shown:

[0038] In an optional embodiment: the extension component 16 includes a lifting cylinder 162, a connecting column 163 and a positioning cover 164, the lifting cylinder 162 is threadedly connected to the inner side of the protective shell 13, the top of the connecting column 163 is fixedly connected to the piston end of the lifting cylinder 162, the middle of the top end of the positioning cover 164 is fixedly connected to the bottom of the connecting column 163, and the lower end of the positioning cover 164 is also provided with a flaring portion 2, the flaring portion 2 includes a driving motor 21, a main gear 22, an eccentric gear 23, an outward-expanding baffle 24 and a support plate 25, the top of the main gear 22 is fixedly connected to the motor shaft of the driving motor 21 through a coupling, the outer teeth of the eccentric gear 23 are meshed with the main gear 22, and the inner wall of the outward-expanding baffle 24 is fixedly connected to the surface of the support plate 25.

[0039] In this embodiment: during the extension process, the lifting cylinder 162 inside the protective shell 13 is started through the control end, and its piston end pushes the connecting column 163, and the connecting column 163 pushes the bottom positioning cover 164 to move downward and drives the outward-expanding baffle 24 and the drill body 14 to move downward and extend out of the protective shell 13, and the drilling operation is completed by the built-in motor drive of the drill body 14; at the same time, under the action of the driving motor 21, the outward-expanding baffle 24 can drive the inclined push plate 6 at the bottom to push the debris drilled out from the drill bit outward to prevent the debris from pouring into the gap along the drill hole and causing collapse.

[0040] Combining the above:

[0041] like Figure 6 and Figure 7 As shown:

[0042] In an optional embodiment: a fixing frame 3 and a threaded rod 1 4 are also provided at the upper end of the support plate 25, the fixing frame 3 is fixedly connected to the inner side of the bottom of the positioning cover 164, and the bottom of the fixing frame 3 is rotatably connected to the top of the drilling tool body 14, the threaded rod 1 4 passes through the top of the support plate 25 and is fixedly connected to the middle part of the eccentric gear 23, a threaded groove 5 matching the size of the threaded rod 2 152 is penetrated through the inner side of the connecting bracket 153, an inclined push plate 6 is also arranged in a circular array on the outer side of the bottom of the drilling tool body 14, a plurality of groups of outward-expanding baffles 24 are arranged, and a plurality of groups of outward-expanding baffles 24 are arranged in a circular array on the outside of the drilling tool body 14.

[0043] In this embodiment: during the slag discharge process, the driving motor 21 inside the positioning cover 164 can be started, and its motor shaft drives the main gear 22 to rotate. Since the main gear 22 is meshed with the eccentric gears 23 of the annular array, under the gear transmission, the eccentric gears 23 can drive the threaded rod 4 connected to the middle thereof to rotate. Since the fixing frame 3 is fixedly connected to the inner side of the positioning cover 164, the support plate 25 cannot play a follow-up rotation effect, and with the cooperation of the screw rod, the outward-expanding baffle plate 24 can drive the inclined push plate 6 at the bottom to expand stably horizontally outward along the opening direction of the support plate 25, thereby achieving the slag discharge effect and preventing collapse.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A geological exploration drilling device, comprising a flexible drilling mechanism (1), characterized in that: The flexible drilling mechanism (1) comprises a crawler vehicle body (11), a support frame (12), a protective shell (13), a drilling tool body (14), a lifting assembly (15) and an extension assembly (16); the support frame (12) is fixedly connected to the outside of the crawler vehicle body (11); the protective shell (13) is slidably sleeved on the outside of the support frame (12); the drilling tool body (14) is movably connected to the inside of the protective shell (13); the lifting assembly (15) is fixedly connected to the top of the protective shell (13); and the extension assembly (16) is sleeved inside the protective shell (13).

2. The geological exploration drilling device according to claim 1, characterized in that: The extension assembly (16) comprises a lifting cylinder (162), a connecting column (163) and a positioning cover (164); the lifting cylinder (162) is threadedly connected to the inner side of the protective shell (13); the top of the connecting column (163) is fixedly connected to the piston end of the lifting cylinder (162); the middle of the top end of the positioning cover (164) is fixedly connected to the bottom of the connecting column (163); and the lower end of the positioning cover (164) is also provided with a flared portion (2).

3. The geological exploration drilling device according to claim 2, characterized in that: The flared portion (2) comprises a driving motor (21), a main gear (22), a skew gear (23), an outward-expanding baffle (24) and a support plate (25); the top of the main gear (22) is fixedly connected to the motor shaft of the driving motor (21) via a coupling; the outer teeth of the skew gear (23) are meshed with the main gear (22); and the inner wall of the outward-expanding baffle (24) is fixedly connected to the surface of the support plate (25).

4. The geological prospecting drilling device according to claim 3, characterized in that: A fixing frame (3) and a threaded rod (4) are also provided at the upper end of the support plate (25); the fixing frame (3) is fixedly connected to the inner side of the bottom of the positioning cover (164), and the bottom of the fixing frame (3) is rotatably connected to the top of the drilling tool body (14); the threaded rod (4) passes through the top of the support plate (25) and is fixedly connected to the middle of the eccentric gear (23).

5. The geological prospecting drilling device according to claim 1, characterized in that: The lifting assembly (15) comprises a stepper motor (151), a second threaded rod (152) and a connecting bracket (153); the stepper motor (151) is threadedly connected to the top of the support frame (12); the top of the second threaded rod (152) is fixedly connected to the motor shaft of the stepper motor (151) via a coupling; and the connecting bracket (153) is threadedly sleeved on the outer side of the second threaded rod (152).

6. The geological prospecting drilling device according to claim 5, characterized in that: A thread groove (5) matching the size of the second threaded rod (152) is formed through the inner side of the connecting bracket (153).

7. The geological exploration drilling device according to claim 1, characterized in that: The bottom outer side of the drilling tool body (14) is also provided with inclined push plates (6) in a circular array.

8. The geological exploration drilling device according to claim 3, characterized in that: The outward-expanding baffles (24) are provided in a plurality of groups, and the plurality of groups of the outward-expanding baffles (24) are arranged in an annular array outside the drilling tool body (14).

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