CN102454365B - Drilling bit for forming branches of branch pile - Google Patents
Drilling bit for forming branches of branch pile Download PDFInfo
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- CN102454365B CN102454365B CN201010517317.4A CN201010517317A CN102454365B CN 102454365 B CN102454365 B CN 102454365B CN 201010517317 A CN201010517317 A CN 201010517317A CN 102454365 B CN102454365 B CN 102454365B
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Abstract
The invention provides a drilling bit for forming branches of branch piles. The drilling bit comprises a cylindrical shell, a left toothed plate, a right toothed plate and driving gears, wherein slit openings are respectively arranged on the side surfaces of the cylindrical shell, and a top plate and a bottom plate are arranged above and under the cylindrical shell; a row of drilling teeth are formed at the end part of the left side of the left toothed plate along the vertical direction, a gap part is formed at the right side of the left toothed plate, and racks are formed on one long side of the gap part along the horizontal direction; a row of drilling teeth are formed at the end part of the right side of the right toothed plate along the vertical direction, a gap part is formed at the left side of the right toothed plate, and racks are formed at one long side of the gap part, which is opposite to the long side on which the racks of the left toothed plate are arranged; and the driving gears are arranged inside the cylindrical shell and positioned between the racks of the left toothed plate and the racks of the right toothed plate.
Description
Technical field
The present invention relates to a kind of drilling bit for forming branches of branch pile that can push simultaneously and rotatablely move to cut the soil body or rock mass.
Background technology
In civil construction project, need in ground, inject bearing peg, so that carrying ground weight.Conventional is extruding-enlarging branch tray castinplace pile at present, its forming process is as follows: first form pile body hole by auger cutting soil body in basis, then extruding-enlarging branch tray machine is lowered into the appropriate location in a hole, the space that by force-bearing disc hole builder, the stake hole soil body is around applied to lateral compression power and extrude dish type in pile body hole side, this side has in the stake hole of disc space and forms extruding-enlarging branch tray castinplace pile after concrete perfusion,, described process comprises pore-forming, an expansion, three steps of perfusion.Wherein, mainly comprise force-bearing disc hole builder and hydraulic cylinder at an extruding-enlarging branch tray machine that expansion step is used, force-bearing disc hole builder has pressure head and the two group bow pressing arms hinged with pressure head, thereby hydraulic cylinder is protruding by promoting pressure head promotion bow pressing arm, so that the extruding pile body hole soil body around forms disc space.
Chinese utility model patent is announced No. CN201080608 and is disclosed a kind of extruding-enlarging branch tray machine, as shown in Figure 1, this extruding-enlarging branch tray machine comprises fuselage 24, be arranged on the force-bearing disc hole builder 25 on fuselage, 26, 25 ', 26 ' and hydraulic cylinder 20, and, force-bearing disc hole builder 25, 26, 25 ', 26 ' has symmetrically arranged two groups of bow pressing arms vertically, one end of one end of two groups of bow pressing arms and fuselage 24 is hinged, its other end is promoted by the hydraulic cylinder 20 of the other end that is arranged on fuselage 24, wherein, every group of bow pressing arm is hinged and formed by a pair of support arm, referring to Fig. 1.Its operating principle is: hydraulic cylinder is by promoting pressure head along vertical mobile, thereby it is protruding to promote two groups of bow pressing arms, so that the extruding pile body hole soil body around forms disc space.Wherein, hydraulic cylinder comprises cylinder body, the piston component moving back and forth is set in cylinder body, comprise piston rod and be fixedly mounted on the piston on piston rod, cylinder body is separated into former and later two chambers by piston, in the time that rear chamber's oil-feed, front chamber are fuel-displaced, promote piston forward and move, thereby promote piston reach, thrust output; When front chamber's oil-feed and rear chamber when fuel-displaced promotes piston to move backward, be retracted in cylinder body thereby promote piston rod.
But the problem that this extruding-enlarging branch tray machine exists is that the thrust of hydraulic cylinder output is subject to the restriction of hydraulic system pressure, run into hard or soil property that viscosity is larger in construction time, for example, layer of sand, layer of gravel, dust layer, break up rock stratum etc. by force, because resistance is excessive and cannot realize squeezed construction; And because squeezed power is limited, the length of squeezed arm is restricted, is unfavorable for increasing disk track and effective bearing area, thereby limited the supporting capacity of perfusion support disk pile.
Therefore, need a kind of one-tenth disc apparatus that can address the above problem.
Summary of the invention
The present invention makes for solving the above-mentioned problems in the prior art, and its object is to provide a kind of drilling bit for forming branches of branch pile, can push simultaneously and rotatablely move to cut the soil body or rock mass, and squeezed power is stronger, easy to use.
According to a kind of drilling bit for forming branches of branch pile of the present invention, it comprises: cylindrical outer casing, offers respectively slit opening in two symmetric positions of its side, and at the peristome of upper and lower, top board and base plate are installed respectively; Left tooth plate, is made and is had the size that can insert above-mentioned slit opening by plate steel plate, is vertically formed with row bores tooth in its left end, is formed with notch part on its right side, on a long limit of the along continuous straight runs of this notch part, is formed with tooth bar; Right tooth plate, make and there is the size that can insert above-mentioned slit opening by plate steel plate, vertically be formed with row in its right-hand end and bore tooth, be formed with notch part in its left side, this notch part, arrange on long limit, long limit opposed and be formed with tooth bar with the tooth bar of above-mentioned left tooth plate; And driven wheel, be arranged between the tooth bar of described left tooth plate and the tooth bar of above-mentioned right tooth plate in the inside of above-mentioned cylindrical outer casing; By described left tooth plate and right tooth plate by make its separately opposite the and above-mentioned brill tooth of notch part towards the mode in cylindrical outer casing outside, insert the inside that is installed to above-mentioned cylindrical outer casing via above-mentioned slit opening, and above-mentioned driven wheel is engaged with the tooth bar of above-mentioned left tooth plate and right tooth plate, in the time that above-mentioned driven wheel rotates by the driving of motor, the above-mentioned left tooth plate and the right tooth plate that possess above-mentioned tooth bar are moved in the opposite direction.
In addition, preferably, the notch part forming on above-mentioned left tooth plate, is the strip fluting with certain width of offering towards right-hand end at the central portion of its short transverse, on a long limit of the along continuous straight runs of slotting at this strip, is formed with tooth bar; The notch part forming on above-mentioned right tooth plate, be the strip fluting with certain width of offering towards left end at the central portion of its short transverse, grow on limit and be formed with tooth bar at opposite side this strip fluting, that with the tooth bar of above-mentioned left tooth plate the along continuous straight runs of the contrary side in long limit is set.
In addition, preferably, the notch part forming on above-mentioned left tooth plate, is that the lower right corner (or upper right corner) at this above-mentioned left tooth plate is cut away one jiao and the rectangle unfilled corner portion that forms forms tooth bar on the long limit of level of this unfilled corner portion; The notch part forming on above-mentioned right tooth plate is that the upper left corner (or lower left corner) at this above-mentioned right tooth plate is cut away one jiao and the rectangle unfilled corner portion that forms forms tooth bar on the long limit of level of this unfilled corner portion.
Due to drilling bit for forming branches of branch pile as above have can transversal stretching to hole into the tooth plate of dish, thereby can push simultaneously and rotatablely move to cut the soil body or rock mass, the defect of unable one-tenth dish when the squeezed system of hydraulic power that has overcome thus existing one-tenth dish use runs into hard soil layer or rock stratum.And drill bit according to the present invention can shorten into the dish time, effectively prevent that proportion after long, mud sediment of support disk pile engineering time in sandy soils or sandy gravel stratum is not enough and cause the phenomenon of the easy collapse hole of hole wall.Can select arbitrarily position and the branch quantity of forming branches of branch pile, and the shape criteria of one-tenth dish, make support disk pile as a kind of friction pile stressed more reasonable, supporting capacity is stronger.
Brief description of the drawings
Fig. 1 is the schematic diagram representing according to the concrete structure of the extruding-enlarging branch tray machine of prior art;
Fig. 2 is the stereogram representing according to the concrete structure of the drilling bit for forming branches of branch pile of first embodiment of the invention;
Fig. 3 represents the sectional view of the concrete structure of drilling bit for forming branches of branch pile according to another embodiment of the present invention.
Detailed description of the invention
With reference to accompanying drawing also in conjunction with specific embodiments, describe the structure of the drilling bit for forming branches of branch pile the present invention relates in detail below.
[the first embodiment]
Fig. 2 is the schematic perspective view representing according to the concrete structure of drilling bit for forming branches of branch pile of the present invention.
The present embodiment designs drilling bit for forming branches of branch pile using diameter as the support disk pile of 1.6 meters as processing object, as shown in the drawing, cut-off footpath is 1.2 meters, length is 2 meters, thickness is that the steel pipe of 0.04 meter is as the cylindrical outer casing 10 of described drill bit, offer respectively for example high 1.2 meters, the longilineal slit opening of wide 0.1 meter in two symmetric positions of these cylindrical outer casing 10 sides, in addition, at the peristome at the two ends up and down of this cylindrical outer casing 10, for example, connecting by some bolt philosophies the base plate 11 and the top board 12 that are not less than 0.02 meter of thickness.In addition, can also be provided with the flange 80 for being connected with the drilling rod of support disk pile machine at the upper surface of top board 12, this one-tenth dish drill bit is connected with the external equipment such as drilling rod.
In the inside of this cylindrical outer casing 10, as shown in Figure 2, by described slit opening, left tooth plates 20 two writing board shapes, that appearance and size is roughly equal and right tooth plate 30 are installed.These two tooth plates have roughly rectangular shape, and its transverse width is a bit larger tham the diameter of above-mentioned cylindrical outer casing, and it is highly less than the length of above-mentioned slit opening.On the whole height of a side end of this left and right tooth plate 20,30, be formed with for boring tooth 40 for row that become dish, in addition, central portion in the short transverse of this left and right tooth plate 20,30 offers the strip fluting with certain width towards end side, make tooth plate be formed as on the whole U font.Wherein, the length of this strip fluting determines with respect to the stroke of cylindrical outer casing according to left and right tooth plate, but at least should be greater than the radius of cylindrical outer casing 10, is preferably 2/3～3/4 diameter of cylindrical outer casing 10.And, on the lower side of the upper side edge of slotting at the strip of left tooth plate 20, the strip fluting of right tooth plate 30, be formed with respectively the tooth bar that can engage with driven wheel.
In the time that this left tooth plate 20 and right tooth plate 30 are installed in the inside of above-mentioned cylindrical outer casing 10, the brill tooth of each tooth plate is inserted into left tooth plate 20 and right tooth plate 30 in the slit opening of cylindrical outer casing 10 toward the outer side in opposite directions, and, the tooth bar that is mounted to left tooth plate 20 and the right tooth plate 30 inside predetermined distance of being separated by.In addition, the driven wheel 50 of corresponding size is installed between this left tooth plate 20 and the tooth bar of right tooth plate 30, upper and lower tooth bar is closely engaged with driven wheel 50, after driven wheel 50 is subject to being arranged on the not shown motor of cylindrical outer casing 10 inside and the driving of reducer, can make left tooth plate 20 and 30 whiles of right tooth plate to the inside or outer side shifting by mobile rack, final realization bored tooth 40 stretching out and retraction on cylindrical outer casing 10.
In addition, left tooth plate 20 and right tooth plate 30 are mounted and fixed on to the concrete grammar in cylindrical outer casing, can adopt the technology of well known to a person skilled in the art, be not described in detail at this.For example, as shown in Figure 2, can guide member 21 and 31 be set respectively at the upside (or upper and lower sides) of the downside of described left tooth plate (or upper and lower sides) and right tooth plate, keep the moving direction of these 2 tooth plates.
At this, above-mentioned not shown motor is connected with external power source and control circuit by cable, by the control from outside, and can rotational driving gear and then mobile left tooth plate 20 and the right tooth plate 30 that possesses tooth bar.In addition, can be at the indoor setting operation platform of support disk pile machine operation, operator can be controlled by operation push-button the work overall process of drill bit.By above-mentioned principle, can design as required the drilling bit for forming branches of branch pile of different pore size, to meet the needs of engineering.
[the second embodiment]
Fig. 3 represents the sectional view of the concrete structure of drilling bit for forming branches of branch pile according to another embodiment of the present invention.
The present embodiment is compared with the first embodiment as above, and difference is the shape of left tooth plate 20 and right tooth plate 30, and other structures are basic identical.Therefore, in the explanation of the present embodiment, stress the different structure of left tooth plate 20 and right tooth plate 30, omit the detailed description that other is possessed to the member of same structure.
As shown in Figure 3, the present embodiment relates to left tooth plate 20 and right tooth plate 30 possess L shaped shape.
,, on rectangular plate left tooth plate 20, the lower right corner is cut away to one jiao and form rectangular unfilled corner portion.The length of this rectangle unfilled corner portion determines with respect to the stroke of cylindrical outer casing according to left and right tooth plate, but at least should be greater than the radius of cylindrical outer casing 10, is preferably 2/3～3/4 diameter of cylindrical outer casing 10; The height of this rectangle unfilled corner portion determines according to the diameter of driven wheel and setting position, but at least should be greater than the half height of this left tooth plate 20.And, on the lower long limit of the unfilled corner portion of this left tooth plate 20, be formed for the tooth bar engaging with driven wheel 50.
Equally, on rectangular plate right tooth plate 20, the upper left corner is cut away to one jiao and form rectangular unfilled corner portion.The length of this rectangle unfilled corner portion determines with respect to the stroke of cylindrical outer casing according to left and right tooth plate, but at least should be greater than the radius of cylindrical outer casing 10, is preferably 2/3～3/4 diameter of cylindrical outer casing 10; The height of this rectangle unfilled corner portion determines according to the diameter of driven wheel and setting position, but at least should be greater than the half height of this right tooth plate 20.And, on the upper long limit of the unfilled corner portion of this right tooth plate 20, be formed for the tooth bar engaging with driven wheel 50.
In the time that this left tooth plate 20 and right tooth plate 30 are installed in the inside of above-mentioned cylindrical outer casing 10, the brill tooth of each tooth plate is inserted into left tooth plate 20 and right tooth plate 30 in the slit opening of cylindrical outer casing 10 toward the outer side in opposite directions, and, the tooth bar that is mounted to left tooth plate 20 and the right tooth plate 30 inside predetermined distance of being separated by.In addition, the driven wheel 50 of corresponding size is installed between this left tooth plate 20 and the tooth bar of right tooth plate 30, upper and lower tooth bar is closely engaged with driven wheel 50, after driven wheel 50 is subject to being arranged on the not shown motor of cylindrical outer casing 10 inside and the driving of reducer, can make left tooth plate 20 and 30 whiles of right tooth plate to the inside or outer side shifting by mobile rack, final realization bored tooth 40 stretching out and retraction on cylindrical outer casing 10.
At this, the left tooth plate 20 of L shaped shape and right tooth plate 30 are mounted and fixed on to the concrete grammar in cylindrical outer casing, can adopt the technology of well known to a person skilled in the art, be not described in detail at this.For example, as shown in Figure 2, can guide member 21 and 31 be set respectively at the upside (or upper and lower sides) of the downside of described left tooth plate (or upper and lower sides) and right tooth plate, keep the moving direction of these 2 tooth plates.
At this, although respectively the upper left corner of the lower right corner of left tooth plate 20, right tooth plate 30 is cut away to one jiao and form L font, but also the lower left corner of the upper right corner of left tooth plate 20, right tooth plate 30 can be cut away to one jiao and form L font, this can realize technique effect of the present invention equally.
Below by the operation of briefly describing according to drilling bit for forming branches of branch pile of the present invention.
First, passing through after rotary drilling rig pore-forming, drilling bit for forming branches of branch pile is connected to by flange 80 on the drilling rod of rotary drilling rig, then drilling bit for forming branches of branch pile is stretched in the hole that rotary drilling rig digs, become dish according to the branch position of designing requirement, drilling bit for forming branches of branch pile slowly moves left and right tooth plate 20,30 laterally by driven wheel 50, meanwhile, the cylindrical outer casing 10 of described drill bit is done forward and reverse rotation under the drive of the drilling rod of rotary drilling rig, becomes dish thus by the cutting soil body.
As mentioned above, the drilling bit for forming branches of branch pile the present invention relates to have can transversal stretching to become the tooth plate of dish, under the effect of motor, it can push simultaneously and rotatablely move to cut the soil body or rock mass, the defect of unable one-tenth dish when the squeezed system of hydraulic power that has overcome thus existing one-tenth dish use runs into hard soil layer or rock stratum, in addition, described drill bit can shorten into the dish time, can select arbitrarily position and the branch quantity of forming branches of branch pile, and the shape criteria of one-tenth dish, make support disk pile as a kind of friction pile stressed more reasonable, supporting capacity is stronger.To sum up, it is simple in structure, easy to operate, effectively and quickly one-tenth dish.
Under above-mentioned instruction of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment; and these improvement and distortion; all drop in protection scope of the present invention; it will be understood by those skilled in the art that just better explanation object of the present invention of above-mentioned specific descriptions, protection scope of the present invention is limited by claim and equivalent thereof; any change within the scope of this and distortion, within all dropping on protection scope of the present invention.
Claims (4)
1. a drilling bit for forming branches of branch pile, is characterized in that, comprising:
Cylindrical outer casing, offers respectively slit opening in two symmetric positions of its side, and at the peristome of upper and lower, top board and base plate is installed respectively;
Left tooth plate, is made and is had the size that can insert above-mentioned slit opening by plate steel plate, is vertically formed with row bores tooth in its left end, is formed with notch part on its right side, on a long limit of the along continuous straight runs of this notch part, is formed with tooth bar; Wherein, the notch part forming on left tooth plate, is the strip fluting with certain width of offering towards right-hand end at the central portion of its short transverse, on a long limit of the along continuous straight runs of slotting at this strip, is formed with tooth bar;
Right tooth plate, make and there is the size that can insert above-mentioned slit opening by plate steel plate, vertically be formed with row in its right-hand end and bore tooth, be formed with notch part in its left side, this notch part, arrange on long limit, long limit opposed and be formed with tooth bar with the tooth bar of above-mentioned left tooth plate; Wherein, the notch part forming on right tooth plate, be the strip fluting with certain width of offering towards left end at the central portion of its short transverse, grow on limit and be formed with tooth bar at opposite side this strip fluting, that with the tooth bar of above-mentioned left tooth plate the along continuous straight runs of the contrary side in long limit is set;
Wherein, the length of this strip fluting is determined with respect to the stroke of cylindrical outer casing according to left and right tooth plate;
Or the notch part forming on left tooth plate, is that the lower right corner is cut away to one jiao and form rectangular unfilled corner portion, forms tooth bar on the long limit of level of this unfilled corner portion;
The notch part forming on right tooth plate, is that the upper left corner is cut away to one jiao and form rectangular unfilled corner portion, on the long limit of level of this unfilled corner portion, forms tooth bar; Wherein, the length of this rectangle unfilled corner portion determines with respect to the stroke of cylindrical outer casing according to left and right tooth plate, and the height of this rectangle unfilled corner portion is determined according to the diameter of driven wheel and setting position;
Driven wheel, is arranged between the tooth bar of described left tooth plate and the tooth bar of above-mentioned right tooth plate in the inside of above-mentioned cylindrical outer casing;
By described left tooth plate and right tooth plate by make its separately opposite the and above-mentioned brill tooth of notch part towards the mode in cylindrical outer casing outside, insert the inside that is installed to above-mentioned cylindrical outer casing via above-mentioned slit opening, and above-mentioned driven wheel is engaged with the tooth bar of above-mentioned left tooth plate and right tooth plate, in the time that above-mentioned driven wheel rotates by the driving of motor, the above-mentioned left tooth plate and the right tooth plate that possess above-mentioned tooth bar are moved in the opposite direction.
2. a drilling bit for forming branches of branch pile, is characterized in that, comprising:
Cylindrical outer casing, offers respectively slit opening in two symmetric positions of its side, and at the peristome of upper and lower, top board and base plate is installed respectively;
Left tooth plate, is made and is had the size that can insert above-mentioned slit opening by plate steel plate, is vertically formed with row bores tooth in its left end, is formed with notch part on its right side, on a long limit of the along continuous straight runs of this notch part, is formed with tooth bar; Wherein, the notch part forming on left tooth plate, is the strip fluting with certain width of offering towards right-hand end at the central portion of its short transverse, on a long limit of the along continuous straight runs of slotting at this strip, is formed with tooth bar;
Right tooth plate, make and there is the size that can insert above-mentioned slit opening by plate steel plate, vertically be formed with row in its right-hand end and bore tooth, be formed with notch part in its left side, this notch part, arrange on long limit, long limit opposed and be formed with tooth bar with the tooth bar of above-mentioned left tooth plate; Wherein, the notch part forming on right tooth plate, be the strip fluting with certain width of offering towards left end at the central portion of its short transverse, grow on limit and be formed with tooth bar at opposite side this strip fluting, that with the tooth bar of above-mentioned left tooth plate the along continuous straight runs of the contrary side in long limit is set;
Wherein, the length of this strip fluting is determined with respect to the stroke of cylindrical outer casing according to left and right tooth plate;
Or the notch part forming on left tooth plate, is that the upper right corner is cut away to one jiao and form rectangular unfilled corner portion, forms tooth bar on the long limit of level of this unfilled corner portion;
The notch part forming on right tooth plate, is that the lower left corner is cut away to one jiao and form rectangular unfilled corner portion, on the long limit of level of this unfilled corner portion, forms tooth bar; Wherein, the length of this rectangle unfilled corner portion determines with respect to the stroke of cylindrical outer casing according to left and right tooth plate, and the height of this rectangle unfilled corner portion is determined according to the diameter of driven wheel and setting position;
Driven wheel, is arranged between the tooth bar of described left tooth plate and the tooth bar of above-mentioned right tooth plate in the inside of above-mentioned cylindrical outer casing;
By described left tooth plate and right tooth plate by make its separately opposite the and above-mentioned brill tooth of notch part towards the mode in cylindrical outer casing outside, insert the inside that is installed to above-mentioned cylindrical outer casing via above-mentioned slit opening, and above-mentioned driven wheel is engaged with the tooth bar of above-mentioned left tooth plate and right tooth plate, in the time that above-mentioned driven wheel rotates by the driving of motor, the above-mentioned left tooth plate and the right tooth plate that possess above-mentioned tooth bar are moved in the opposite direction.
3. drilling bit for forming branches of branch pile according to claim 1 and 2, is characterized in that,
Upper and lower both sides at described left tooth plate and right tooth plate are respectively equipped with guide member, ensure the movement of the along continuous straight runs of described left tooth plate and right tooth plate.
4. drilling bit for forming branches of branch pile according to claim 1 and 2, is characterized in that,
On the top board of described cylindrical outer casing, be provided with the flange for being connected with the drilling rod of support disk pile machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010517317.4A CN102454365B (en) | 2010-10-18 | 2010-10-18 | Drilling bit for forming branches of branch pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010517317.4A CN102454365B (en) | 2010-10-18 | 2010-10-18 | Drilling bit for forming branches of branch pile |
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| Publication Number | Publication Date |
|---|---|
| CN102454365A CN102454365A (en) | 2012-05-16 |
| CN102454365B true CN102454365B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010517317.4A Active CN102454365B (en) | 2010-10-18 | 2010-10-18 | Drilling bit for forming branches of branch pile |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004565A (en) * | 2018-08-08 | 2018-12-14 | 国家电网有限公司 | A kind of box-type substation with heat sinking function |
| CN112049591B (en) * | 2020-10-12 | 2024-05-03 | 溧阳市东南机械有限公司 | Drilling bucket anti-blocking device for drilling machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1750953A (en) * | 1925-04-17 | 1930-03-18 | Boynton Alexander | Rotary reamer |
| CN1080686A (en) * | 1992-07-01 | 1994-01-12 | 能源部电力建设研究所 | Castinplace pile reaming pressure head and expanding method |
| CN2301530Y (en) * | 1997-08-06 | 1998-12-23 | 地质矿产部勘探技术研究所 | Anchor rod base-enlarging drill bit |
| CN2457208Y (en) * | 2001-01-15 | 2001-10-31 | 天津开发区三友新科技开发有限公司 | Differential drilling and reaming hole purpose machine capable of detecting and controlling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8113301B2 (en) * | 2009-04-14 | 2012-02-14 | Tesco Corporation | Jetted underreamer assembly |
-
2010
- 2010-10-18 CN CN201010517317.4A patent/CN102454365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1750953A (en) * | 1925-04-17 | 1930-03-18 | Boynton Alexander | Rotary reamer |
| CN1080686A (en) * | 1992-07-01 | 1994-01-12 | 能源部电力建设研究所 | Castinplace pile reaming pressure head and expanding method |
| CN2301530Y (en) * | 1997-08-06 | 1998-12-23 | 地质矿产部勘探技术研究所 | Anchor rod base-enlarging drill bit |
| CN2457208Y (en) * | 2001-01-15 | 2001-10-31 | 天津开发区三友新科技开发有限公司 | Differential drilling and reaming hole purpose machine capable of detecting and controlling |
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| CN102454365A (en) | 2012-05-16 |
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Address after: 100085, Beijing, Beijing economic and Technological Development Zone, Kangding street, No. 1, 2, six or seven, Daxing District Patentee after: MCC COMMUNICATION CONSTRUCTION GROUP CO., LTD. Address before: 100176, Beijing economic and Technological Development Zone, Kangding street, No. 1, 2, six, seven Patentee before: MCC Communication Engineering Technology Co., Ltd. |