CN112412331A - Dual-purpose power head for drilling - Google Patents
Dual-purpose power head for drilling Download PDFInfo
- Publication number
- CN112412331A CN112412331A CN202011620709.3A CN202011620709A CN112412331A CN 112412331 A CN112412331 A CN 112412331A CN 202011620709 A CN202011620709 A CN 202011620709A CN 112412331 A CN112412331 A CN 112412331A
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- Prior art keywords
- gear
- drilling
- hole
- small
- dual
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
Abstract
The invention discloses a drilling and boring dual-purpose power head.A slewing mechanism is sleeved at the rear part of a drill shank, the slewing mechanism is connected with a driving mechanism, and an impact mechanism is arranged at the rear end of the drill shank; the drill shank is sleeved with a medium leading-in mechanism and a cushioning mechanism; the center of the drill shank is provided with an inserting hole along the axial direction. The drill bit tail can be driven by the driving mechanism to rotate through the rotating mechanism, drilling construction can be carried out on a stratum through the drilling tool, the impact mechanism can provide impact power for the drill bit tail to impact the stratum, and when construction is carried out on a complex stratum containing a soil layer and a rock layer, rotation or impact can be directly and independently started or rotation and impact can be simultaneously started according to the actual condition of a construction part without replacing different types of power heads, so that the time for dismounting and replacing the power heads is saved, the construction efficiency is improved, the construction progress is accelerated, and the construction period is shortened.
Description
Technical Field
The invention relates to the technical field of drilling machine equipment, in particular to a dual-purpose power head for drilling.
Background
The drilling machine is widely applied to the fields of exploration or mineral resource development, geotechnical engineering construction, geotechnical foundation construction and the like, different construction processes can be adopted according to different stratum conditions in the construction process of the drilling machine, and the different construction processes are realized by different types of power heads, for example, a gyrator power head is adopted to drive a drilling tool to drill a hole in a stratum, and an impactor power head is adopted to impact and crush a rock. However, the conventional power head is generally single in functionality, for example, the rotary power head can only drill holes for drilling common soil layers and has almost no effect on impact on rocks, while the impactor power head can only impact the rocks but cannot rotate; under the condition of meeting a complex stratum (a soil layer and a rock layer exist), different types of power heads are usually replaced for construction, longer time is consumed for the disassembly, the assembly and the replacement of the power heads, the construction efficiency is reduced, the construction progress is slowed down, and the construction period is prolonged.
Disclosure of Invention
The applicant aims at the defects that different power heads need to be replaced by different construction processes in the construction process of the existing drilling machine, the construction efficiency is reduced, the construction progress is slowed down, the construction period is prolonged, and the like, and provides the dual-purpose drilling power head with a reasonable structure.
The technical scheme adopted by the invention is as follows:
a drilling dual-purpose power head is characterized in that a slewing mechanism is sleeved at the rear part of a drill rod tail and is connected with a driving mechanism, and an impact mechanism is arranged at the rear end of the drill rod tail; the drill shank is sleeved with a medium leading-in mechanism and a cushioning mechanism; the center of the drill shank is provided with an inserting hole along the axial direction;
a first copper sleeve is nested in a first base of the cushioning mechanism, the front portion of the first copper sleeve is a small-diameter portion, the rear portion of the first copper sleeve is a large-diameter portion, a radial first step surface is arranged between the small-diameter portion and the large-diameter portion, an elastic piece is arranged between the first step surface and the inner side face of the first base, and the elastic piece is sleeved on the periphery of the small-diameter portion of the first elastic piece.
As a further improvement of the above technical solution:
the inner circumferential surface of the first base corresponding to the large diameter part of the first copper sleeve is provided with a plurality of first grooves, the outer circumferential surface of the large diameter part of the first copper sleeve is provided with a plurality of second grooves, and pins are arranged in the first grooves and the second grooves.
The inner circumferential surface of the small diameter part of the first copper sleeve is provided with a first spiral groove, the small diameter part is provided with a first through hole communicated with the first spiral groove along the radial direction, and the first base is provided with an oil cup corresponding to the first through hole.
An oil seal is arranged on the inner periphery of the front end part of the small-diameter part of the first copper sleeve.
The center of the cylinder body of the medium leading-in mechanism is provided with a medium cavity, the cylinder body is radially provided with a medium input port communicated with the medium cavity, and the medium cavity is communicated with an insertion hole of the drill shank; a plurality of sealing elements are respectively arranged on the two sides of the medium cavity in the cylinder body.
A front cover and a rear cover are respectively and fixedly arranged on the front end surface and the rear end surface of a second base of the slewing mechanism; a first gear and a second gear are arranged in the second base, the periphery of the first gear is meshed with the second gear through gear teeth, a second copper sleeve is arranged in the first gear through key teeth meshing, the second copper sleeve is arranged on the periphery of the drill shank through the key teeth meshing sleeve, and the second gear is connected with a driving mechanism; when the drill bit is in work, the driving mechanism sequentially passes through the second gear, the first gear, the second copper sleeve and the drill bit shank to transmit torque, and drives the drill bit shank to rotate.
The center of the first gear is provided with a stepped through hole with a large front part and a small rear part, the front part of the stepped through hole is a large-diameter hole part, the rear part of the stepped through hole is a small-diameter hole part, a radial second stepped surface is arranged between the large-diameter hole part and the small-diameter hole part, a second copper sleeve is arranged in the small-diameter hole part, and an anti-collision piece is arranged between the inner end surface of the second copper sleeve and the second stepped surface; the circumferential surface of the small-diameter hole part of the first gear is provided with a second spiral groove, and the first gear is provided with a second through hole communicated with the second spiral groove along the radial direction.
The front cylinder body of the impact mechanism is fixed on a rear cover of the swing mechanism through a fastener, the rear end part of the front cylinder body is sleeved with a rear cylinder body, the mandrel is inserted in central channels of the front cylinder body and the rear cylinder body, a reversing valve assembly is arranged on the front cylinder body, and the reversing valve assembly is communicated with the central channel of the front cylinder body through a corresponding channel.
The medium leading-in mechanism is connected with the cushioning mechanism through the connecting rod component.
The medium leading-in mechanism is positioned at the front side of the cushioning mechanism and has a certain distance with the cushioning mechanism.
The invention has the following beneficial effects:
the drill bit tail can be driven by the driving mechanism through the slewing mechanism to perform slewing motion, drilling construction can be performed on a stratum through the drilling tool, the impact mechanism can provide impact power for the drill bit tail to impact the stratum, and the slewing mechanism and the impact mechanism can be independently started or started simultaneously; when the construction is carried out in the complex stratum which comprises the soil layer and the rock layer, the rotation or the impact can be directly and independently opened according to the actual condition of the construction part, the rotation and the impact can also be simultaneously opened, the power heads of different types do not need to be replaced, the time for disassembling, assembling and replacing the power heads is saved, the construction efficiency is improved, the construction progress is accelerated, and the construction period is shortened.
The elastic piece can absorb a part of impact force generated when the impact mechanism impacts, and the whole power head is prevented from being damaged due to overlarge impact force.
The medium is input into the medium cavity through the medium input port and then input into the plug-in hole of the drill shank from the medium cavity, so that the drilling slag at the bottom of the drill hole can be conveniently discharged, and the drilling efficiency is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
FIG. 3 is a left side view of the cushioning mechanism.
Fig. 4 is a sectional view taken along line B-B of fig. 3.
Fig. 5 is a sectional view of the swing mechanism with the rear cover removed.
In the figure: 1. a drill shank; 11. inserting holes;
2. a medium introducing mechanism; 21. a barrel; 22. a media chamber; 23. a media input port;
3. a cushioning mechanism; 31. a first base; 311. a first groove; 32. a first copper bush; 321. a first step surface; 322. a first helical groove; 323. a first through hole; 324. a second groove; 33. oil sealing; 34. an elastic member; 35. an oil cup; 36. a gasket; 37. a pin;
4. a swing mechanism; 41. a second base; 42. a front cover; 43. a rear cover; 44. a first gear; 441. a second step surface; 442. a second helical groove; 443. a second through hole; 45. a second gear; 46. A second copper sleeve; 47. an anti-collision member;
5. a drive mechanism;
6. an impact mechanism; 61. a mandrel; 62. a front cylinder body; 63. a rear cylinder body; 64. a reversing valve assembly;
7. a connecting rod assembly.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, a swing mechanism 4 is sleeved at the rear part of a drill rod shank 1, the swing mechanism 4 is connected with a driving mechanism 5, a shock absorption mechanism 3 is fixed at the front end of the swing mechanism 4, the shock absorption mechanism 3 is sleeved at the middle part of the drill rod shank 1, and an impact mechanism 6 is fixed at the rear end of the swing mechanism 4; the middle part of the drill bit shank 1, the front side of the cushioning mechanism 3 and a certain distance away from the cushioning mechanism 3 are sleeved with a medium leading-in mechanism 2, and the medium leading-in mechanism 2 is connected with the cushioning mechanism 3 through a connecting rod component 7; the center of the front part of the drill shank 1 is provided with an inserting hole 11 along the axial direction for inserting a drilling tool.
As shown in fig. 2, a cylinder 21 of the medium introducing mechanism 2 is sleeved in the middle of the shank 1, a medium cavity 22 is formed in the center of the cylinder 21, a medium inlet 23 communicated with the medium cavity 22 is radially formed in the cylinder 21, and a plurality of sealing elements are respectively arranged in the cylinder 21 and positioned at two sides of the medium cavity 22 to seal the medium cavity 22; the medium chamber 22 communicates with the insertion opening 11 of the shank adapter 1. The medium (water or high-pressure gas) is input into the medium cavity 22 through the medium input port 23 and then input into the insertion hole 11 of the drill shank 1 from the medium cavity 22, so that the drilling slag at the bottom of the drill hole can be conveniently discharged, and the drilling efficiency is improved.
As shown in fig. 3 and 4, a first copper sleeve 32 is nested in the first base 31 of the cushioning mechanism 3, the front end of the first copper sleeve 32 penetrates through the first base 31, and a gasket 36 is arranged outside the rear end of the first copper sleeve for limiting. The front and rear parts of the first copper bush 32 have different outer diameters, the front part is a small diameter part, the rear part is a large diameter part, and a radial first step surface 321 is arranged between the small diameter part and the large diameter part; a first spiral groove 322 is formed in the inner circumferential surface of the small diameter portion of the first copper bush 32, a first through hole 323 communicated with the first spiral groove 322 is formed in the small diameter portion in the radial direction, the first spiral groove 322 and the first through hole 323 form a lubricating oil channel, an oil cup 35 is arranged on the first base 31 corresponding to the first through hole 323, and the oil cup 35 supplies lubricating oil to the first spiral groove 322 through the first through hole 323 to lubricate the matching portion of the first copper bush 32 and the drill shank 1; an oil seal 33 is provided on the inner periphery of the front end of the small diameter portion to seal. An elastic part 34 is arranged between the first step surface 321 of the first copper bush 32 and the inner side surface of the first base 31, and the elastic part 34 is sleeved on the periphery of the small diameter part of the first elastic part 34; the elastic member 34 can absorb a part of the impact force generated by the impact mechanism 6 during impact, so as to prevent the whole power head from being damaged due to the excessive impact force. The inner circumferential surface of the first base 31 corresponding to the large diameter portion of the first copper sleeve 32 is provided with a plurality of first grooves 311, the outer circumferential surface of the large diameter portion of the first copper sleeve 32 is correspondingly provided with a plurality of second grooves 324, and pins 37 are arranged in the first grooves 311 and the second grooves 324 to circumferentially limit the first base 31 and the first copper sleeve 32, so that the first base 31 and the first copper sleeve 32 are prevented from rotating.
As shown in fig. 5, the front cover 42 and the rear cover 43 are respectively and fixedly disposed on the front and rear end surfaces of the second base 41 of the swing mechanism 4, a first gear 44 and a second gear 45 are disposed in the second base 41, and the outer periphery of the first gear 44 is engaged with the second gear 45 through gear teeth; the center of the first gear 44 is a stepped through hole with a large front part and a small rear part, the front part of the stepped through hole is a large-diameter hole part, the rear part of the stepped through hole is a small-diameter hole part, and a radial second stepped surface 441 is arranged between the large-diameter hole part and the small-diameter hole part; the circumferential surface of the small-diameter hole portion of the first gear 44 is provided with a second spiral groove 442, the first gear 44 is provided with a second through hole 443 communicated with the second spiral groove 442 in the radial direction, the second spiral groove 442 and the second through hole 443 form a lubricating oil passage, and lubricating oil can be supplied to the matching portion of the first gear 44 and the drill shank 1 through the lubricating oil passage for lubrication. A second copper sleeve 46 is arranged in the large-diameter hole part of the first gear 44 through key tooth meshing, and an anti-collision piece 47 is arranged between the inner end surface of the second copper sleeve 46 and the second step surface 441 to prevent the drill shank 1 and the second copper sleeve 46 from directly colliding with the first gear 44 during axial movement and avoid directly damaging the first gear 44; as shown in fig. 2, the second copper sleeve 46 is sleeved on the periphery of the drill shank 1 through key tooth meshing, the second gear 45 is connected with the driving mechanism 5 (not shown in the figure), and the driving mechanism 5 sequentially passes through the second gear 45, the first gear 44, the second copper sleeve 46 and the drill shank 1 to transmit torque, so as to drive the drill shank 1 to rotate.
As shown in FIG. 2, a front cylinder block 62 of the impact mechanism 6 is fixed on a rear cover 43 of the swing mechanism 4 through a fastener, a rear cylinder block 63 is sleeved at the rear end of the front cylinder block 62, the mandrel 61 is inserted into central channels of the front cylinder block 62 and the rear cylinder block 63, a reversing valve assembly 64 is arranged on the front cylinder block 62, the reversing valve assembly 64 is a hydraulic reversing valve and is communicated with the central channel of the front cylinder block 62 through corresponding channels, and the mandrel 61 is driven by hydraulic oil to impact back and forth in a circulating manner to provide impact power for the drill shank 1.
The drive mechanism 5 is a hydraulic motor.
During actual use, the rotary mechanism can be directly and independently opened for rotation or impact or can be simultaneously opened for rotation and impact to construct the stratum according to the actual condition of the stratum construction part.
The drill bit shank drilling machine can drive the drill bit shank 1 to rotate by the driving mechanism 5 through the rotating mechanism 4, drill a stratum through a drilling tool, and can also provide impact power for the drill bit shank 1 by the impact mechanism 6 to impact the stratum, wherein the rotation and the impact can be respectively and independently started or can be simultaneously started; when the construction is carried out in the complex stratum which comprises the soil layer and the rock layer, the rotation or the impact can be directly and independently opened according to the actual condition of the construction part, the rotation and the impact can also be simultaneously opened, the power heads of different types do not need to be replaced, the time for disassembling, assembling and replacing the power heads is saved, the construction efficiency is improved, the construction progress is accelerated, and the construction period is shortened.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, as the invention may be modified in any manner without departing from the spirit thereof.
Claims (10)
1. A dual-purpose power head for drilling, characterized by: a slewing mechanism (4) is sleeved at the rear part of the drill rod tail (1), the slewing mechanism (4) is connected with a driving mechanism (5), and an impact mechanism (6) is arranged at the rear end of the drill rod tail (1); a medium leading-in mechanism (2) and a cushioning mechanism (3) are sleeved on the drill shank (1); the center of the drill shank (1) is provided with an inserting hole (11) along the axial direction;
a first copper sleeve (32) is nested in a first base (31) of the cushioning mechanism (3), the front portion of the first copper sleeve (32) is a small-diameter portion, the rear portion of the first copper sleeve is a large-diameter portion, a radial first step surface (321) is arranged between the small-diameter portion and the large-diameter portion, an elastic piece (34) is arranged between the first step surface (321) and the inner side surface of the first base (31), and the periphery of the small-diameter portion of the first elastic piece (34) is sleeved with the elastic piece (34).
2. The dual-purpose power head for drilling as recited in claim 1, wherein: the inner circumferential surface of the first base (31) corresponding to the large-diameter part of the first copper sleeve (32) is provided with a plurality of first grooves (311), the outer circumferential surface of the large-diameter part of the first copper sleeve (32) is correspondingly provided with a plurality of second grooves (324), and pins (37) are arranged in the first grooves (311) and the second grooves (324).
3. The dual-purpose power head for drilling as recited in claim 1, wherein: a first spiral groove (322) is formed in the inner circumferential surface of the small-diameter portion of the first copper sleeve (32), a first through hole (323) communicated with the first spiral groove (322) is formed in the small-diameter portion in the radial direction, and an oil cup (35) is arranged on the first base (31) corresponding to the first through hole (323).
4. A dual-purpose power head for drilling as defined in claim 3, wherein: an oil seal (33) is provided on the inner periphery of the front end of the small diameter portion of the first copper bush (32).
5. The dual-purpose power head for drilling as recited in claim 1, wherein: a medium cavity (22) is formed in the center of a cylinder body (21) of the medium introducing mechanism (2), a medium inlet (23) communicated with the medium cavity (22) is formed in the cylinder body (21) in the radial direction, and the medium cavity (22) is communicated with an insertion hole (11) of the drill shank (1); a plurality of sealing elements are respectively arranged in the cylinder body (21) and positioned at two sides of the medium cavity (22).
6. The dual-purpose power head for drilling as recited in claim 1, wherein: the front end surface and the rear end surface of a second base (41) of the rotary mechanism (4) are respectively and fixedly provided with a front cover (42) and a rear cover (43); a first gear (44) and a second gear (45) are arranged in the second base (41), the periphery of the first gear (44) is meshed with the second gear (45) through gear teeth, a second copper sleeve (46) is arranged in the first gear (44) through key teeth in a meshed mode, the second copper sleeve (46) is sleeved on the periphery of the drill shank (1) through key teeth in a meshed mode, and the second gear (45) is connected with a driving mechanism (5); when the drill bit is in work, the driving mechanism (5) sequentially passes through the second gear (45), the first gear (44), the second copper sleeve (46) and the drill bit shank (1) to transmit torque, and drives the drill bit shank (1) to rotate.
7. The dual-purpose power head for drilling as recited in claim 6, wherein: the center of the first gear (44) is a stepped through hole with a large front part and a small rear part, the front part of the stepped through hole is a large-diameter hole part, the rear part of the stepped through hole is a small-diameter hole part, a radial second step surface (441) is arranged between the large-diameter hole part and the small-diameter hole part, the second copper bush (46) is arranged in the small-diameter hole part, and an anti-collision piece (47) is arranged between the inner end surface of the second copper bush (46) and the second step surface (441); a second spiral groove (442) is formed in the circumferential surface of the small-diameter hole portion of the first gear (44), and a second through hole (443) which is communicated with the second spiral groove (442) is formed in the first gear (44) in the radial direction.
8. The dual-purpose power head for drilling as recited in claim 1, wherein: a front cylinder body (62) of the impact mechanism (6) is fixed on a rear cover (43) of the swing mechanism (4) through a fastener, a rear cylinder body (63) is sleeved at the rear end of the front cylinder body (62), a mandrel (61) is inserted into central channels of the front cylinder body (62) and the rear cylinder body (63), a reversing valve assembly (64) is arranged on the front cylinder body (62), and the reversing valve assembly (64) is communicated with the central channel of the front cylinder body (62) through a corresponding channel.
9. The dual-purpose power head for drilling as recited in claim 1, wherein: the medium leading-in mechanism (2) is connected with the cushioning mechanism (3) through a connecting rod component (7).
10. The dual-purpose power head for drilling as recited in claim 1, wherein: the medium leading-in mechanism (2) is positioned at the front side of the cushioning mechanism (3) and is at a certain distance from the cushioning mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620709.3A CN112412331A (en) | 2020-12-31 | 2020-12-31 | Dual-purpose power head for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620709.3A CN112412331A (en) | 2020-12-31 | 2020-12-31 | Dual-purpose power head for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412331A true CN112412331A (en) | 2021-02-26 |
Family
ID=74783146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011620709.3A Pending CN112412331A (en) | 2020-12-31 | 2020-12-31 | Dual-purpose power head for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412331A (en) |
-
2020
- 2020-12-31 CN CN202011620709.3A patent/CN112412331A/en active Pending
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