CN108825128B - Rectangular hole-forming drill bit - Google Patents
Rectangular hole-forming drill bit Download PDFInfo
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- CN108825128B CN108825128B CN201810817138.9A CN201810817138A CN108825128B CN 108825128 B CN108825128 B CN 108825128B CN 201810817138 A CN201810817138 A CN 201810817138A CN 108825128 B CN108825128 B CN 108825128B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 145
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims description 23
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 12
- 239000002689 soil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
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- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The rectangular hole-forming drill bit is an engineering mechanical technology and comprises a transmission assembly, two disc sliding plates, four horizontal drill bits, four steel wire brushes and a vertical drill bit; its advantages are small inclination of drilled hole, close to adjacent building, and no damage to adjacent building.
Description
Technical Field
The invention relates to an engineering mechanical technology, in particular to a rectangular hole forming drill bit.
Background
At present, a piling drill bit does not have a drill bit capable of forming a rectangular hole, a drill hole is not easy to be tightly leaned against an adjacent building, the surface of the adjacent building cannot be cleaned, the inclination of the drill hole is large, the function of a cast-in-place bored pile is narrow, the construction of some major projects is limited to a great extent, and the development of national economy is directly influenced.
Disclosure of Invention
The invention aims to provide a rectangular hole forming drill bit which has small drilling inclination, can be close to adjacent buildings, can remove soil on the surfaces of the adjacent buildings and does not damage the adjacent buildings. The invention aims to realize the purpose, which comprises a transmission assembly, two disc sliding plates, four horizontal drill bits, four steel wire brushes and a vertical drill bit; the lower surface of the transmission assembly is connected with a vertical drill bit through a transmission shaft; two opposite side surfaces of the transmission assembly are respectively connected with the two disc sliding plates through rotating shafts; the other two side surfaces of the transmission assembly are respectively connected with four horizontal drill bits and four steel wire brushes, and the connection mode is as follows during work: when structures are underground at two sides, the working shaft of the transmission assembly is respectively connected with the four horizontal drill bits and the steel wire brush, and the steel wire brush is arranged at the hollow part of the horizontal drill bits; when independent holes are drilled or a continuous wall groove is formed, the working shaft of the transmission assembly is respectively connected with four horizontal drill bits; when the surface of a building is only cleaned, the working shaft of the transmission assembly is respectively connected with the four steel wire brushes.
The transmission assembly comprises a transmission shaft, a box body, a vertical conical gear, a first gear, a second gear, a third gear, two working shafts, a second conical gear, a hydraulic cylinder, two shifting forks and two shifting fork wheels; the upper end of the transmission shaft is connected with a power system in two ways: the upper end of a transmission shaft is connected with a power system, and the transmission shaft is connected with the power system through an upper transmission shaft and a drill rod; a vertical conical gear is fixed in the middle of the transmission shaft, the lower end of the transmission shaft is connected with a vertical drill bit, and the transmission shaft is penetrated on the box body through a bearing and a sealing element; the vertical bevel gear is fixed on the transmission shaft and is meshed with the first bevel gear and the second bevel gear; the first conical gear is meshed with the vertical conical gear, the first conical gear is coaxial with the first gear, and the first conical gear is fixed in the box body through a shaft and a bearing; the first gear is coaxial with the first conical gear, the first gear is meshed with the second gear and the third gear, and the first gear is fixed in the box body through a shaft and a bearing; the second gear is meshed with the first gear and the third gear, and the second gear is fixed in the box body through a shaft and a bearing and is used for changing the rotating direction of the third gear so that the rotating directions of the two third gears are opposite; the two gears III are respectively fixed on the two working shafts, one gear III is meshed with the gear I, and the other gear III is meshed with the gear II; the working shafts are grooved hollow spline shafts and are provided with two parts, a gear III is fixed on each working shaft, two shifting fork wheels are sleeved outside each working shaft, two jacking shafts of the steel wire brushes penetrate through the inner part of each working shaft, two ends of each working shaft are respectively connected with a horizontal drill bit and one steel wire brush, and the two working shafts penetrate through a box body through bearings and sealing elements; two conical gears are arranged, the two conical gears are meshed with the vertical conical gear, each conical gear is coaxial with a corresponding circular sliding plate, and the two conical gears are fixed in the box body through shafts, bearings and sealing pieces respectively; two ends of the hydraulic cylinder are respectively connected with two shifting forks, the hydraulic cylinder is arranged at the lowest layer of the box body, and the hydraulic cylinder is connected with a hydraulic pump on the rack through a hydraulic hose and the box body; the middle of each of the two shifting forks is connected to two ends of the hydraulic cylinder respectively, each shifting fork is clamped in the grooves of the two shifting fork wheels, and two ends of each of the two shifting forks penetrate through the shafts respectively and are fixed in the box body; the four shifting fork wheels are sleeved at the groove on one working shaft, each shifting fork wheel is connected with the top shaft of the steel wire brush through a pin shaft, and a shifting fork is clamped in each shifting fork wheel groove.
The disc sliding plate is made of a round steel plate, the two disc sliding plates are arranged, and the two disc sliding plates are respectively connected with the transmission assembly through rotating shafts.
The number of the horizontal drill bits is four, the installation modes of the horizontal drill bits are two, the four horizontal drill bits are respectively connected to the working shaft, the hollow part is provided with a steel wire brush, and the two horizontal drill bits on the same side are opposite in rotation direction; or four horizontal drill bits are respectively connected to the working shaft, and the two horizontal drill bits on the same side have opposite rotation directions.
The steel wire brushes are arranged into four pieces, and each steel wire brush comprises a top shaft, a spline sleeve, a spring, a circular steel plate, a spring wire and a sealing piece; the four steel wire brushes are respectively penetrated on the working shaft, are connected with the shifting fork wheel through the pin shaft and are arranged at the hollow part of the horizontal drill; or four steel wire brushes are respectively penetrated on the working shaft and are connected with the shifting fork wheel through the pin shaft.
The connection mode of the rectangular hole-forming drill bit and the drilling machine has two types: the upper surface of a transmission assembly is connected with a power system through a transmission shaft, the power system is connected with a rack through a drill rod and two positioners, the drill rod does not rotate, and the section of the drill rod is formed by welding two rectangular pipes with different section sizes; the upper surface of the transmission assembly is connected with an upper transmission shaft and a drill rod through transmission shafts, the upper transmission shaft and the drill rod are connected with a power system, and the drill rod is connected with the rack through two positioners; the upper transmission shaft is arranged in the drill rod through a bearing and a sealing element; the flexible shaft with small torque is used for the upper transmission shaft, and the flexible shaft with large torque is formed by connecting a plurality of hard shafts through a coupling; the drill rod is a square tube and does not rotate.
The locator sets up to two, and two locators comprise pneumatic cylinder, snap ring respectively, and connect in the frame.
The frame is formed by connecting a traveling mechanism, a supporting and positioning mechanism, a pressurizing mechanism, a winch, a hydraulic pump and a portal frame.
According to the hole forming principle of the rectangular hole forming drill bit, the vertical drill bit rotates to drill soil below a transmission total stroke, the four horizontal drill bits rotate to cut soil on two sides, and the disc sliding plate rotates to clean the vertical drill bit and the soil remaining in the drilling process of the four horizontal drill bits to form a rectangular hole. When drilling, the two horizontal drill bits and the two steel wire brushes on the same side rotate in opposite directions and move upwards along the side against the hole wall. The reverse direction of rotation enables the reaction force of the soil body to be offset or minimized, the hole is not easy to incline, and the hole wall is not easy to collapse by leaning against the side-up motion of the hole wall. The steel wire brush consists of a top shaft, a spline sleeve, a circular steel plate, a spring wire and a sealing piece, has elasticity, has limited pressure when the steel wire brush is rotated against a building, has limited destructive power of the spring wire during rotation, cannot damage adjacent buildings, removes soil bodies and can clean the surface of the uneven building.
The steel wire brush, the hydraulic cylinder, the shifting fork and the shifting fork wheel are detached from the rectangular hole forming drill bit, and then the rectangular hole forming drill bit is connected with the auxiliary rectangular hole forming drill bit through the connecting piece and the horizontal drill bit with the connecting structures at two ends to form a rectangular hole forming drill bit group, and the construction progress of the underground diaphragm wall can be accelerated by the rectangular hole forming drill bit group. The connecting piece is a welding piece.
The auxiliary rectangular hole forming drill bit comprises an auxiliary transmission assembly, two horizontal drill bits, two circular plate sliding plates and a vertical drill bit, wherein the adjacent sides of the auxiliary transmission assembly and the rectangular hole forming drill bit are connected with the working shaft of the transmission assembly through two working shafts and two horizontal drill bits with connecting structures at two ends, the other side of the auxiliary transmission assembly, which is opposite to the rectangular hole forming drill bit, is respectively provided with the two horizontal drill bits through the two working shafts, the lower surface of the auxiliary transmission assembly is connected with the vertical drill bit through a transmission shaft, and the other two side surfaces of the auxiliary transmission assembly are connected with the circular sliding plates through the transmission shaft.
The auxiliary transmission assembly comprises an auxiliary transmission shaft, an auxiliary box body, a vertical conical gear, a first gear, a third gear, two working shafts and two second conical gears; the upper end of the auxiliary transmission shaft is fixed with a vertical conical gear, the lower end of the auxiliary transmission shaft is connected with a vertical drill bit, and the auxiliary transmission shaft is penetrated on the auxiliary box body through a bearing and a sealing element; the vertical bevel gear is fixed at the upper end of the auxiliary transmission shaft and is meshed with the first bevel gear and the second bevel gear; the first conical gear is coaxial with the first gear, and the first conical gear is fixed in the auxiliary box body through a shaft and a bearing; the first gear is meshed with the third gear, and the first gear is fixed in the auxiliary box body through a shaft and a bearing; the third gear is meshed with the first gear, and the third gear is fixed on a working shaft; the two working shafts are provided, one of the working shafts is fixed with a gear III, the two working shafts are respectively penetrated on the auxiliary box body through a bearing and a sealing piece, one ends of the two working shafts are respectively connected with the two working shafts of the transmission assembly through two horizontal drill bits of which both ends are provided with connecting structures, and the other ends of the two working shafts are respectively connected with the two horizontal drill bits; the two conical gears are meshed with the vertical conical gear, each conical gear is coaxial with the corresponding circular sliding plate, and the two conical gears are fixed in the auxiliary box body through shafts, bearings and sealing pieces respectively.
The working principle of the rectangular hole forming drill bit set is as follows: when grooving, the working shaft of the transmission assembly rotates to drive the horizontal drill bit close to the transmission assembly to rotate, the horizontal drill bit close to the transmission assembly drives the working shaft of the auxiliary transmission assembly to rotate and drives the horizontal drill bit at the other end to rotate, one of the working shafts drives the third gear, the first bevel gear, the first vertical bevel gear, the second bevel gear, the disc sliding plate and the vertical drill bit to rotate, and the vertical drill bit, the horizontal drill bit and the circular sliding plate rotate to cut soil mass to form grooves
The application method of the invention comprises the following steps: the first step is to position, move the frame, operate the gantry support positioning system, make its vertical gantry direction put in place, and vertical, operate the locator to make the drilling rod perpendicular, centering along the gantry direction.
The second step is to install the drill bit: when drilling independent hole, install horizontal drill bit.
When structures are underground on two sides of the drill, a horizontal drill bit and a steel wire brush are installed, and the direction of the horizontal drill bit is made to be along the direction of the portal frame.
When only underground structures on two sides are cleaned, only the steel wire brush is installed.
When forming the continuous wall groove: only the horizontal drill bit is installed, and the direction of the horizontal drill bit is along the direction of the portal frame.
And thirdly, electrifying to check the rotation direction of the horizontal drill bit to enable the horizontal drill bit to move upwards along the side connected with the hole wall, so that the hole wall is favorably smeared with honey and is favorably complete.
The fourth step is drilling: when drilling an independent hole, soil is cut along with the rotation of the drill bit to drill, and slurry is circulated until the bottom of the hole.
When the length of a rectangular hole with a structure or a drill bit not designed is long underground at two sides, a hole is drilled at one side, and the hole is drilled to the bottom of the hole or a certain depth, and then the part which is not drilled is moved to drill until the hole is formed. When cleaning the surface of the structures on both sides, the hydraulic pump is operated to drive the wire brush out, the positioner is operated to drive the wire brush to lean against the structure on one side, and the wire brush is lifted while rotating, and when the wire brush is lifted to an orifice or a certain height, the wire brush is moved to the other side to lean against the structure and is lowered while rotating until the bottom of the hole or the certain height.
When the surface of the building on two sides is cleaned, the positioner is operated to make the wire brush rotate and descend along with leaning against the structure on one side, and when the wire brush descends to the bottom of the hole or reaches a certain depth, the positioner of the frame is operated to make the wire brush rotate and ascend along with leaning against the structure on the other side until reaching the hole opening.
When the continuous wall is grooved, the length of a drill bit is drilled to the bottom of the hole, and then the length of the next drill bit is drilled until the continuous wall is grooved.
When a round hole is drilled, the rectangular hole-forming drill bit is removed, the vertical drill bit is directly connected with the power system or the upper transmission shaft and the drill rod, and a hole is drilled by a common drilling machine.
A slurry circulation mode: the positive circulation and the reverse circulation exist, and the mud carries soil particles to flow out from the empty openings to form holes.
The invention has the significance that the two horizontal drill bits and the steel wire brush on the same side of the rectangular hole forming drill bit have opposite rotation directions, the counter force of a soil body to the horizontal drill bits is counteracted, and a drilled hole is not easy to incline; the horizontal drill moves upwards along the hole wall, and has a wiping effect on the hole wall, so that the hole wall is not easy to collapse; the steel wire brush is arranged, so that the surfaces of the adjacent buildings can be cleaned, and the adjacent buildings are not damaged; rectangular holes and circular holes can be drilled, and the device can be used as a continuous wall and has multiple purposes. The structure layout of the pile foundation engineering can be changed, so that the functions of the cast-in-place pile are increased.
The drill rod does not rotate, the influence on the flow of slurry is small, the drill rod can be thickened, the rigidity of the drill rod is improved, and the upper part of the drill rod is restrained by the positioning device, so that the inclination of the drilled hole can be greatly reduced, and the drilling quality and the position precision are improved.
The rectangular hole forming drill bit set is used for underground diaphragm wall construction, progress is faster, and efficiency is higher.
Drawings
FIG. 1 is a top view of a rectangular hole-forming drill bit with a horizontal drill bit and a wire brush installed thereon, wherein FIG. 1 shows a transmission assembly 2, a transmission shaft 3, a disc slide plate 4, a horizontal drill bit 5 and a wire brush.
Fig. 2 is a top view of a rectangular hole forming drill bit for mounting a horizontal drill bit, wherein the rectangular hole forming drill bit comprises a transmission assembly 1, a transmission shaft 2, a transmission shaft 3, a disc sliding plate 4 and the horizontal drill bit.
FIG. 3 is a top view of a rectangular hole-forming drill bit with a wire brush mounted thereon, wherein the wire brush comprises a transmission assembly 1, a transmission shaft 2, a transmission shaft 3, a disc sliding plate 5 and a wire brush.
FIG. 4 is an elevation view of a rectangular hole-forming drill, in which FIG. 1, a transmission assembly 2, a transmission shaft 3, a disc slide 4, a horizontal drill 5, a wire brush 6 and a vertical drill are shown.
Fig. 5 is a gear layout diagram of the transmission assembly 1, and in the diagram, 2, the transmission shaft 7, the box body 8, the vertical bevel gear 9, the first bevel gear 10, the first gear 11, the second gear 12, the third gear 13, the working shaft 14 and the second bevel gear are shown.
Fig. 6 is a vertical arrangement view of a bevel gear of the transmission assembly, wherein 2, a transmission shaft 7, a box body 8, a vertical bevel gear 9, a first bevel gear 10 and a first gear are shown.
Fig. 7 is a gear face layout diagram of the transmission assembly, in which 10, a first gear 11, a second gear 12, a third gear 13 and a working shaft are shown.
Fig. 8 is a differential relationship diagram of the transmission assembly, in which 7, a box body 13, a working shaft 15, a hydraulic cylinder 16, a shifting fork 17 and a shifting fork wheel are shown.
FIG. 9 is a diagram showing the relationship between the fork wheel, the working shaft and the wire brush, and in the diagram 5, the wire brush 13, the working shaft 17 and the fork wheel.
Fig. 10 is a plan view of the offset.
Fig. 11 is a view of a poor dialing elevation.
Fig. 12 is a diagram of the positional relationship between the rectangular hole-forming drill and the frame and the drill rod, in the figure 2, the transmission shaft 18, the rectangular hole-forming drill 19, the power system 20, the drill rod 21, the positioner 22 and the frame.
Fig. 13 is a second diagram of the positional relationship between the rectangular hole-forming drill bit and the frame and the drill rod, in which 2, the transmission shaft 18, the rectangular hole-forming drill bit 19, the power system 20, the drill rod 21, the positioner 22, the frame 23 and the upper transmission shaft are shown.
Fig. 14 is a perspective view of a rectangular hole forming drill bit set, in which fig. 1, a transmission assembly 2, a transmission shaft 4, a horizontal drill bit 6, a vertical drill bit 13, a working shaft 24, a sub-transmission assembly 25, a connecting member 27, and a sub-transmission shaft are shown.
Fig. 15 is a plan view of a rectangular hole-forming drill bit set, in which fig. 1, a transmission assembly 2, a transmission shaft 3, a circular plate sliding plate 4, a horizontal drill bit 13, a working shaft 24, an auxiliary transmission assembly 25 and a connecting piece are arranged.
Fig. 16 is a horizontal cross-sectional view of the rectangular hole-forming drill set, which includes 2, a transmission shaft 7, a box 8, a vertical bevel gear 9, a first bevel gear 10, a first gear 11, a second gear 12, a third gear 13, a working shaft 14, a second bevel gear 26, an auxiliary box 27 and an auxiliary transmission shaft.
Fig. 17 is a sectional view of an assembly plane of a rectangular hole-forming drill, in which 2, a transmission shaft 7, a box body 8, a vertical bevel gear 9, a bevel gear 10, a gear 12, a gear 13, a working shaft 25, a connecting piece 26, an auxiliary box body 27 and an auxiliary transmission shaft are shown.
Detailed Description
The drilling machine comprises an embodiment 1, a transmission assembly 1, two disc sliding plates 3, four horizontal drill bits 4, four steel wire brushes 5 and a vertical drill bit 6, wherein the lower surface of the transmission assembly 1 is connected with the vertical drill bit 6 through a transmission shaft 2; two opposite side surfaces of the transmission assembly 1 are respectively connected with the two disc sliding plates 3 through rotating shafts; the other two side surfaces of the transmission assembly 1 are respectively connected with four horizontal drill bits 4 and four steel wire brushes 5, and during working, the connection modes are three: when structures are underground at two sides, a working shaft 13 of a transmission assembly 1 is respectively connected with four horizontal drill bits 4 and a steel wire brush 5, and the steel wire brush 5 is arranged at the hollow part of the horizontal drill bits 4; secondly, when independent holes are drilled or a continuous wall slot is formed, the working shaft 13 of the transmission assembly 1 is respectively connected with four horizontal drill bits 4; and thirdly, when only the surface of a building is cleaned, the working shaft 13 of the transmission assembly 1 is respectively connected with the four steel wire brushes 5.
In embodiment 3, the disc sliding plate 3 is made of a circular steel plate, and the disc sliding plate 3 is connected with the transmission assembly 1 through a rotating shaft.
In the embodiment 4, four horizontal drill bits 4 are arranged, and the installation modes are two, wherein one horizontal drill bit and four horizontal drill bits 4 are respectively connected to the working shaft 13, the hollow part is provided with the steel wire brush 5, and the directions of the two horizontal drill bits 4 on the same side are opposite; the two and four horizontal drill bits 4 are respectively connected on the working shaft 13, and the two horizontal drill bits 4 on the same side have opposite rotation directions.
In embodiment 5, the steel wire brush 5 is provided with four pieces, and each steel wire brush 5 comprises a top shaft, a spline housing, a spring, a circular steel plate, a spring wire and a sealing piece; the steel wire brushes 5 are arranged in two ways, wherein one and four steel wire brushes 5 respectively penetrate through the working shaft 13, are connected with the shifting fork wheel 17 through a pin shaft and are arranged at the hollow part of the horizontal drill 4; the two and four steel wire brushes 5 are respectively penetrated on the working shaft 13 and are connected with the shifting fork wheel 17 through a pin shaft.
In the embodiment 6, the rectangular hole-forming drill bit 18 and the drilling machine are connected in two ways, namely, the transmission assembly 1 is connected with a power system 19 through a transmission shaft 2, the power system 19 is connected with a rack 22 through a drill rod 20 and two positioners 21, the drill rod 20 does not rotate, and the section of the drill rod 20 is formed by welding two rectangular pipes with different section sizes; the upper surface of the transmission assembly 1 is connected with an upper transmission shaft 23 and a drill rod 20 through a transmission shaft 2, the upper transmission shaft 23 and the drill rod 20 are connected with a power system 19, and the drill rod 20 is connected with a rack 22 through two positioners 21; the upper transmission shaft 23 is arranged in the drill rod 20 through a bearing and a sealing element; the upper transmission shaft 23 is a flexible shaft with small torque, and a plurality of hard shafts with large torque are connected through a coupling; the drill rod 20 is a square tube and does not rotate.
In embodiment 7, two positioners 21 are provided, each of the two positioners 21 is composed of a hydraulic cylinder and a snap ring, and both the two positioners 21 are connected to a frame 23.
In embodiment 8, the frame 23 is formed by connecting a traveling mechanism, a supporting and positioning mechanism, a pressurizing mechanism, a winch, a hydraulic pump and a portal frame.
In the embodiment 9, the rectangular hole forming drill bit 18 is detached from the steel wire brush 5, the hydraulic cylinder 15, the shifting fork 16 and the shifting fork wheel 17, then the rectangular hole forming drill bit 18 is connected with the auxiliary rectangular hole forming drill bit through the connecting piece 25 and the two horizontal drill bits 4 with the connecting structures at two ends to form a rectangular hole forming drill bit group, and the construction progress of the underground diaphragm wall can be accelerated by the rectangular hole forming drill bit group.
Embodiment 11, the auxiliary transmission assembly 24 includes an auxiliary transmission shaft 27, an auxiliary box 26, a vertical bevel gear 8, a first bevel gear 9, a first gear 10, a third gear 12, two working shafts 13, and two second bevel gears 14; the upper end of the auxiliary transmission shaft 27 is fixed with a vertical conical gear 8, the lower end of the auxiliary transmission shaft 27 is connected with a vertical drill bit 6, and the auxiliary transmission shaft 27 penetrates through an auxiliary box body 26 through a bearing and a sealing element; the vertical bevel gear 8 is fixed at the upper end of the auxiliary transmission shaft 27, and the vertical bevel gear 8 is meshed with the first bevel gear 9 and the second bevel gear 14; the first bevel gear 9 is meshed with the bevel gear 8, the first bevel gear 9 is coaxial with the first gear 10, and the first bevel gear 9 is fixed in the auxiliary box body 26 through a shaft and a bearing; the first gear 10 is meshed with the third gear 12, and the first gear 10 is fixed in the auxiliary box body 26 through a shaft and a bearing; the third gear 12 is meshed with the first gear 10, and the third gear 12 is fixed on a working shaft 13; two working shafts 13 are provided, one of the working shafts 13 is fixed with a gear three 12, the two working shafts 13 are respectively penetrated on the auxiliary box body 26 through a bearing and a sealing piece, one ends of the two working shafts 13 are respectively connected with the two working shafts 13 of the transmission assembly 1 through two horizontal drill bits 4 with connecting structures at two ends, and the other ends of the two working shafts 13 are connected with the horizontal drill bits 4; the two conical gears 14 are meshed with the vertical conical gear 8, each conical gear 14 is coaxial with a corresponding circular sliding plate 3, and the two conical gears 14 are fixed in the auxiliary box body 26 through shafts, bearings and sealing elements respectively.
Claims (2)
1. The rectangle pore-forming drill bit includes transmission assembly (1), two disc slide (3), four horizontal drill bits (4), four steel brush (5), a perpendicular drill bit (6), characterized by: the lower surface of the transmission assembly (1) is connected with a vertical drill bit (6) through a transmission shaft (2); two opposite side surfaces of the transmission assembly (1) are respectively connected with the two disc sliding plates (3) through rotating shafts; the other two side surfaces of the transmission assembly (1) are respectively connected with four horizontal drill bits (4) and four steel wire brushes (5) in a connection mode that: two working shafts of the transmission assembly (1) are respectively connected with four horizontal drill bits (4) and a steel wire brush (5), and the steel wire brush (5) is arranged at the hollow part of the horizontal drill bits (4); two working shafts (13) of the transmission assembly (1) are respectively connected with four horizontal drill bits (4); two working shafts (13) of the transmission assembly (1) are respectively connected with four steel wire brushes (5);
the two horizontal drill bits (4) and the two steel wire brushes (5) on the same side of the transmission assembly (1) of the horizontal drill bits (4) and the steel wire brushes (5) are opposite in rotation direction;
the transmission assembly (1) comprises a transmission shaft (2), a box body (7), a vertical conical gear (8), a conical gear I (9), a gear I (10), a gear II (11), two gears III (12), two working shafts (13), two conical gears II (14), a hydraulic cylinder (15), two shifting forks (16) and four shifting fork wheels (17); a vertical conical gear (8) is fixed in the middle of the transmission shaft (2), the lower end of the transmission shaft (2) is connected with a vertical drill bit (6), and the transmission shaft (2) penetrates through a box body (7) through a bearing and a sealing piece; the vertical bevel gear (8) is fixed on the transmission shaft (2), and the vertical bevel gear (8) is meshed with the first bevel gear (9) and the second bevel gear (14); the first conical gear (9) is meshed with the vertical conical gear (8), the first conical gear (9) is coaxial with the first gear (10), and the first conical gear (9) is fixed in the box body (7) through a shaft and a bearing; the first gear (10) is coaxial with the first conical gear (9), the first gear (10) is meshed with the second gear (11) and the third gear (12), and the first gear (10) is fixed in the box body (7) through a shaft and a bearing; the second gear (11) is meshed with the first gear (10) and the third gear (12), and the second gear (11) is fixed in the box body (7) through a shaft and a bearing; the number of the gears III (12) is two, the two gears III (12) are respectively fixed on the two working shafts (13), one gear III (12) is meshed with the gear I (10), and the other gear III (12) is meshed with the gear II (11); working shaft (13) are slotted hollow spline shaft, have two, are fixing a gear three (12) on every working shaft (13), and two declutch shift pulley (17) are being cover to every working shaft (13) fluting department, and the apical axis of two steel wire brushes (5) is worn to the inside of every working shaft (13), and the both ends and horizontal bit (4) of every working shaft (13), the connected mode of steel wire brush (5) have: firstly, each working shaft (13) is simultaneously connected with a horizontal drill bit (4) and a steel wire brush (5), secondly, each working shaft (13) is connected with the horizontal drill bit (4), thirdly, each working shaft (13) is connected with the steel wire brush (5), and the two working shafts (13) respectively penetrate through a bearing and a sealing piece on a box body (7); two conical gears II (14) are arranged, the two conical gears II (14) are meshed with the vertical conical gear (8), each conical gear II (14) is coaxial with the corresponding disc sliding plate (3), and the two conical gears II (14) are fixed in the box body (7) through shafts, bearings and sealing elements respectively; two ends of the hydraulic cylinder (15) are respectively connected with a shifting fork (16); the two shifting forks (16) are arranged, the middle of each shifting fork (16) is connected to two ends of the hydraulic cylinder (15) respectively, each shifting fork (16) is clamped in the corresponding groove of each shifting fork wheel (17), and two ends of each shifting fork (16) are fixed in the box body (7) in a penetrating mode respectively; the number of the shifting fork wheels (17) is four, every two shifting fork wheels (17) are sleeved at the groove on one working shaft (13), each shifting fork wheel (17) is connected with the top shaft of the corresponding steel wire brush (5) through a pin shaft, and the corresponding shifting fork (16) is clamped in the groove of each shifting fork wheel (17).
2. The rectangular hole forming drill bit of claim 1, wherein: the rectangular hole forming drill bit is provided with a steel wire brush (5), a hydraulic cylinder (15), a shifting fork (16) and a shifting fork wheel (17) which are removed, and is connected with an auxiliary rectangular hole forming drill bit through a connecting piece (25) and a horizontal drill bit (4) with connecting structures at two ends to form a rectangular hole forming drill bit group; the auxiliary rectangular hole forming drill bit comprises an auxiliary transmission assembly (24), two horizontal drill bits (4), two disc sliding plates (3) and a vertical drill bit (6); the adjacent side of the auxiliary transmission assembly (24) and the rectangular hole forming drill bit (18) is respectively connected with the two working shafts (13) of the transmission assembly (1) through the two working shafts (13) and the two horizontal drill bits (4) with connecting structures at two ends, the other side of the auxiliary transmission assembly (24) is respectively provided with the two horizontal drill bits (4) through the two working shafts (13), the lower surface of the auxiliary transmission assembly (24) is connected with the vertical drill bit (6) through an auxiliary transmission shaft (27), and the other two side surfaces of the auxiliary transmission assembly (24) are respectively connected with the two disc sliding plates (3) through transmission shafts;
the auxiliary transmission assembly (24) comprises an auxiliary transmission shaft (27), an auxiliary box body (26), a vertical conical gear (8), a first conical gear (9), a first gear (10), a third gear (12), two working shafts (13) and two second conical gears (14); a vertical conical gear (8) is fixed at the upper end of the auxiliary transmission shaft (27), the lower end of the auxiliary transmission shaft is connected with a vertical drill bit (6), and the auxiliary transmission shaft (27) penetrates through an auxiliary box body (26) through a bearing and a sealing piece; the vertical bevel gear (8) is fixed at the upper end of the auxiliary transmission shaft (27), and the vertical bevel gear (8) is meshed with the first bevel gear (9) and the second bevel gear (14); the first conical gear (9) is meshed with the vertical conical gear (8), the first conical gear (9) is coaxial with the first gear (10), and the first conical gear (9) is fixed in the auxiliary box body (26) through a shaft and a bearing; the first gear (10) is coaxial with the first conical gear (9), the first gear (10) is meshed with the third gear (12), and the first gear (10) is fixed in the auxiliary box body (26) through a shaft and a bearing; the gear III (12) is meshed with the gear I (10), and the gear III (12) is fixed on a working shaft (13); two working shafts (13) are provided, one of the working shafts (13) is fixed with a gear III (12), the two working shafts (13) are respectively penetrated on an auxiliary box body (26) through a bearing and a sealing piece, one ends of the two working shafts (13) are respectively connected with the two working shafts (13) of the transmission assembly (1) through two horizontal drill bits (4) with connecting structures at two ends, and the other ends of the two working shafts (13) are respectively connected with the two horizontal drill bits (4); two conical gears (14) are arranged, the two conical gears (14) are meshed with the vertical conical gear (8), each conical gear (14) is coaxial with one corresponding disc sliding plate (3), and the two conical gears (14) are fixed in the auxiliary box body (26) through shafts, bearings and sealing elements respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817138.9A CN108825128B (en) | 2018-07-24 | 2018-07-24 | Rectangular hole-forming drill bit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817138.9A CN108825128B (en) | 2018-07-24 | 2018-07-24 | Rectangular hole-forming drill bit |
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| Publication Number | Publication Date |
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| CN108825128A CN108825128A (en) | 2018-11-16 |
| CN108825128B true CN108825128B (en) | 2020-05-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109681116A (en) * | 2019-01-31 | 2019-04-26 | 四川省交通运输厅交通勘察设计研究院 | A kind of square pile rotary drilling device and its rotary digging method for realizing rectangular pore-forming |
| CN113153163B (en) * | 2021-04-07 | 2024-07-02 | 四川省交通建设集团有限责任公司 | Rectangular pile hole forming drill bit and hole forming method thereof |
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| CN108825128A (en) | 2018-11-16 |
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