CN203463015U - Double-mixing drill of cement-soil mixing pile machine - Google Patents
Double-mixing drill of cement-soil mixing pile machine Download PDFInfo
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- CN203463015U CN203463015U CN201320513601.3U CN201320513601U CN203463015U CN 203463015 U CN203463015 U CN 203463015U CN 201320513601 U CN201320513601 U CN 201320513601U CN 203463015 U CN203463015 U CN 203463015U
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Abstract
The utility model discloses a double-mixing drill of a cement-soil mixing pile machine. Seven layers of mixing blades including cutting blades, fixed blades and follow-up blades are connected to a drill core pipe, two layers of follow-up blades are arranged between the fixed blades at an interval, the follow-up blades can freely rotate on the drill core pipe, an internally hexagonal square hole in a drill connecting handle can be quickly connected with a drill rod connecting handle in an adaptive way, a rubber valve capable of being automatically opened and closed is arranged on a slurry spray opening, and a spiral conic drill tip is arranged at the lower end of the drill core pipe. Under the same work conditions, after the double-mixing drill of the cement-soil mixing pile machine is used, the number of piles which can be finished by one double-mixing drill during a work shift is increased from original eight to twelve, the work efficiency is increased by 50%, and energy is saved by 50%. The arrangement of the rubber valve capable of being automatically opened and closed is favorable to opening or closing the slurry spray opening, and prevents curing agent fluid from overflowing and polluting work places. The popularization and application effects are extremely remarkable.
Description
Technical field
The utility model relates to a kind of energy-efficient two drill bits that stir of cement-soil mixing pile machine, belongs to building machinery equipment technology field.
Background technology
Cement-soil mixing pile machine is the piling machinery equipment a kind of for building for soft foundation processing, mixing pile machine bores pick at subgrade scene to certain depth, simultaneously drill bit place ejection cement be hardening agent and with ground undisturbed soil mix and blend repeatedly, make it to form curing compound and carry out consolidated subsoil with the pile body that ground undisturbed soil mixes stirring.In practice of construction, due to the impossible uniformity of stratum geology, the uniformity that stirs pile is difficult to grasp, and often causes efficiency of construction low, difficult quality guarantee.For above problem, design department and unit in charge of construction disclose multiple improving one's methods: as increased, repeatedly stir number of times, two-way stirring drilling tool etc.Yet adopt again the mode of stirring need to repeat to stir up and down at least more than secondary, reduced efficiency of construction; No matter adopt two-way stirring drilling tool, be double dynamical or single-power driving drilling rod method, all there will be the problems such as in complicated in mechanical structure, operation process, energy consumption is high, equipment failure rate is high, maintenance difficult.
Known mixing pile machine drill bit comprises: Chinese invention patent < < expansion bit > > (application number: 201110374211.8) disclosed, utilize tooth bar reducing, scalable stirring radius formula drill bit, yet this kind of drill bit because stratum geologic structure is complicated, adopts this kind of drill bit practicality not strong when operation; utility model patent < < rake teeth type mixing pile machine drill bit > > (application number: 201320005691.5), < < has the reinforced agitation pile drill bit > > (application number: 201120107706.X) of cutting earth working material function, < < agitation pile machine bit and mixing pile machine > > (application number: 201220175104.2), 201020264012.2) and < < mixing pile machine drill bit > > (application number: 200920210581.6) etc. disclosed the bidirectional rotation of < < mixing pile machine stirs drill bit > > (application number:, all cutter head and the drill body fixing mechanism on drill bit work plane, no matter this drill bit is mounted on unidirectional mixing pile machine or bidirectional stirring pile machine, the operating efficiency of drill bit is relatively low, every machine-team can complete the problems such as a number is less, and there is no automatic open and close rubber valve, be conducive to open or close mouth spray, prevent that curing compound slurries from overflowing pollution work-yard device.
Summary of the invention
The purpose of this utility model is to ask a question for background technology, open two drill bits that stir of public a kind of cement-soil mixing pile machine, be with servo-actuated stirring vane and rubber valve, the multiple layers of vanes form of structure drill bit of the bit extension being connected fast with drilling rod is installed at drill bit core pipe top, utilize unidirectional drilling rod can realize two-way stirring effect, and a pile, without repeatedly stirring again, effectively improve uniformity and the intensity of agitation pile, improve efficiency of construction, saved construction cost.
The technical solution of the utility model is: the two of a kind of cement-soil mixing pile machine stir drill bit, comprises bit extension, drill bit core pipe, cutting blade, fixed blade, with moving vane, mouth spray and drill bit; Described drill bit core pipe is hollow cylinder rigid body, and drill bit core pipe upper end is bit extension, and drill bit core pipe lower end is spiral taper drill bit; It is characterized in that:
Described drill bit core pipe be distributed with successively from bottom to top first floor cutting blade, the second layer with moving vane, the 3rd layer of fixed blade, the 4th layer with moving vane and the 5th to layer 7 fixed blade;
Described mouth spray be with first floor admittedly cut blade contour open the circular hole on drill bit core tube wall, in described circular hole, there are two arch-shaped pressing plates, also have two semi-circular rubber valve, have bolt rubber valve to be fixed on the screw in mouth spray outside by described arch-shaped pressing plate;
The middle part of described bit extension has interior hexagonal square hole, and bit extension side has at least four pin-and-holes, described interior hexagonal square hole and four pin-and-holes be connected and drive the outer hexagonal kelly tenon of drill bit to match;
Blades are cut in two the brill picks symmetrical on horizontal plane, that be connected on drill bit core pipe cylindrical of described cutting blade, and the oar face that blade is cut in brill pick becomes 45 degree inclination angles with horizontal plane, bore to dig on the cutting sharp side of cutting blade to be inlaid with alloy teeth;
Described fixed blade is symmetrical on horizontal plane, be connected in two stirrer paddles on drill bit core pipe cylindrical, and the oar face of stirrer paddle becomes 30 degree inclination angles with horizontal plane;
Described is equally distributed two of can rotate freely around drill bit core pipe or three stirrer paddles on horizontal plane with moving vane, and the oar face of stirrer paddle becomes 90 degree inclination angles with horizontal plane; Have clamp will be sleeved on drill bit core pipe cylindrical with moving vane by connecting bolt, there is the locating snap ring on drill bit core pipe cylindrical that is fixed on preventing with the upper and lower vibration of moving vane the upper and lower end face at suit position;
The first floor cutting blade of blade and the distribution of the blade of the 3rd layer of fixed blade in xy plane are vertical each other, the distribution of the blade of the blade of layer 5 fixed blade and layer 6 fixed blade in xy plane is vertical each other, and the distribution of the blade of the blade of layer 6 fixed blade and layer 7 fixed blade in xy plane is vertical each other.
Two drill bits that stir of a kind of cement-soil mixing pile machine as above, it is characterized in that: the described blade number of plies can be according to rig bottom and ground level increase and decrease, when rig bottom increases with ground level, can be on layer 7 fixed blade corresponding increase one deck or two layers of fixed blade, while reducing with ground level when rig bottom, can cancel layer 6 or the 6th and layer 7 fixed blade.
The two operating principles of stirring drill bit of the utility model cement-soil mixing pile machine are:
Drill bit described in the utility model is provided with nearly seven layers of blade, when rig is passed to rotary power rotary power drill bit and creeps into downwards by drilling rod, the brill pick cutting blade being fixed on drill bit core pipe is moving the pick of ground undisturbed soil, two layers, four layers are not rotated with drill bit core pipe with moving vane, the 3rd layer, five～seven layers are rotated with drill bit core pipe, the second layer in work, the 4th layer with moving vane with respect to the 3rd layer, layer 5 stirring vane, form reverse agitating function, complete two-way stirring, layer 6, layer 7 blade is on the basis of two-way stirring, further fully stir, make curing compound mix more even with ground undisturbed soil, reach pile-forming effect one time.
The utility model cement-soil mixing pile machine is two to be stirred the beneficial effect that drill bit can bring and is:
(1) under identical operating mode, with respect to using conventional drill, using the two of cement-soil mixing pile machine described in the utility model to stir after drill bit, every machine-team can complete a number and bring up to 12 by original 8, improve work efficiency 50%, relative namely saved 50% with can, effect highly significant.
(2) because drilling rod connecting handle is outer six side's tenons (consistent with bit extension), there are four connection pin-and-holes consistent with bit extension side, in use, only drilling rod connecting handle need be inserted to bit extension, then insert four and be connected and fixed pin, can complete fast the connection of drilling rod and drill bit.
(3) during due to two semicircle rubber valve gunniting hole normalities on mouth spray, in closure state, in the time will sending slurry, two rubber valve under curing compound slurries pressure, are outwards split in drill bit core pipe, allow curing compound ejection; In the time of need not sending slurry, in drill bit core pipe, without pressure, two rubber valve self-returns, close mouth spray, prevent that outer soil from entering mouth spray, stop up drill bit core pipe; And prevent that curing compound slurries from overflowing pollution work-yard.
Accompanying drawing explanation
Fig. 1 is the two drill bit structure schematic diagrames that stir of the utility model embodiment cement-soil mixing pile machine;
Fig. 2 is the connection diagram of Fig. 1 drilling rod connecting handle and bit extension;
Fig. 3 is the local enlarged diagram in Fig. 1 mouth spray A place.
Description of symbols in accompanying drawing: 1-drill bit, 2-cutting blade, 3-alloy teeth, 4-hexagon socket head cap screw, 5-pressing plate, 6-rubber valve, 7-locating snap ring, 8-with moving vane, 9-clamp, 10-bolt, 11-the three layer of fixed blade, 12-layer 5 fixed blade, 13-layer 6 fixed blade, 14-drill bit core pipe, 15-layer 7 fixed blade, 16-bit extension, 17-drilling rod connecting handle, 18-be connected and fixed pin, 19-mouth spray.
The specific embodiment
Below in conjunction with accompanying drawing, the enforcement of technical scheme is described in further detail:
As shown in Figure 1, the two of a kind of cement-soil mixing pile machine of the utility model stir drill bit, comprise bit extension 16, drill bit core pipe 14, cutting blade 2, fixed blade (11,12,13,15), with moving vane 8, mouth spray 19 and drill bit 1.Drill bit core pipe 14 is hollow cylinder rigid bodies, and the upper end of drill bit core pipe 14 is bit extensions 16, and drill bit core pipe 14 lower ends are spiral taper drill bits 1.
Drill bit core pipe 14 along the z axle in Fig. 1 be distributed with successively from bottom to top first floor cutting blade 2, the second layer with moving vane 8, the 3rd layer of fixed blade 11, the 4th layer with moving vane 8 and the 5th to layer 7 fixed blade (12,13,15).Cutting blade 2 is to cut blades in upper symmetrical two the brill picks that are connected on drill bit core pipe 14 cylindricals of horizontal plane (xy plane), the oar face that bores pick cutting blade becomes 45 degree inclination angles with horizontal plane (xy plane), bores on the cutting sharp side of digging cutting blade and is inlaid with alloy teeth 3.Fixed blade has four groups (11,12,13,15), and fixed blade is symmetrically on horizontal plane to be connected in two stirrer paddles on drill bit core pipe 14 cylindricals, and the oar face of stirrer paddle becomes 30 degree inclination angles with horizontal plane.With moving vane 8, be at upper equally distributed two of can rotate freely around drill bit core pipe 14 of horizontal plane (xy plane) or three stirrer paddles (being two blades point-blank in Fig. 1), with oar face and the horizontal plane of moving vane 8, become 90 degree inclination angles (parallel with the z in Fig. 1); Clamp 9 will be sleeved on drill bit core pipe 14 cylindricals with moving vane 8 by connecting bolt 10, the upper and lower end face at suit position have prevent with moving vane Shang Xia 8 vibration be fixed on the locating snap ring 7 on drill bit core pipe 14 cylindricals.The first floor cutting blade of blade 2 and the distribution of the blade of the 3rd layer of fixed blade 11 in xy plane are vertical each other, the distribution of the blade of the blade of layer 5 fixed blade 12 and layer 6 fixed blade 13 in xy plane is vertical each other, and the distribution of the blade of the blade of layer 6 fixed blade 13 and layer 7 fixed blade 15 in xy plane is vertical each other.
Preferably, the described blade number of plies can be according to rig bottom and ground level increase and decrease, when rig bottom increases with ground level, can be on layer 7 fixed blade corresponding increase one deck or two layers of fixed blade, while reducing with ground level when rig bottom, can cancel layer 6 or the 6th and layer 7 fixed blade.Referring to accompanying drawing 1 and accompanying drawing 3, mouth spray 19 be with first floor cutting blade contour open the circular hole on drill bit core pipe 14 tube walls, in circular hole, there are two symmetrical arch-shaped pressing plates 5 in the vertical direction, also have two semi-circular rubber valve 6, hexagon socket head cap screw 4 is fixed on rubber valve 6 on the outside screw of mouth spray 19 by arch-shaped pressing plate 5.
Referring to accompanying drawing 1 and accompanying drawing 2, the middle part of bit extension 16 has interior hexagonal square hole, the side of bit extension 16 has four pin-and-holes, interior hexagonal square hole on bit extension 16 and the outer hexagonal kelly tenon of drilling rod connecting handle 17 lower ends match, when drilling rod connecting handle 17 is along inserting behind bit extension 16 inside vertically downward, four be connected and fixed pin 18 respectively along level in four pin-and-holes that insert on bit extension 16, can be just bit extension 16 is connected with drilling rod connecting handle 17 and fixedly on drilling rod, rotary drill rod can drive drill bit rising or decline.
Because the utility model cement-soil mixing pile machine is two, stir drill bit nearly seven layers of blade are installed, when rig is passed to rotary power rotary power drill bit and creeps into downwards by drilling rod, the brill pick cutting blade being fixed on drill bit core pipe is moving the pick of ground undisturbed soil, two layers, four layers are not rotated with drill bit core pipe with moving vane, the 3rd layer, five～seven layers are rotated with drill bit core pipe, the second layer in work, the 4th layer with moving vane with respect to the 3rd layer, layer 5 stirring vane, form reverse agitating function, complete two-way stirring, layer 6, layer 7 blade is on the basis of two-way stirring, further fully stir, make curing compound mix more even with ground undisturbed soil, reach pile-forming effect one time.Under identical operating mode, with respect to using conventional drill, two while stirring drill bit what use cement-soil mixing pile machine described in the utility model, every machine-team can complete a number can be brought up to 12 by original 8, improve work efficiency 50%, relative namely saved 50% with can, apply rear obtained benefit highly significant.
On the other hand, because drilling rod connecting handle is outer six side's tenons (consistent with bit extension), there are four connection pin-and-holes consistent with bit extension side, in use, only drilling rod connecting handle need be inserted to bit extension, insert again four and be connected and fixed pin, can complete fast the connection of drilling rod and drill bit.
It three is: during due to two semicircle rubber valve gunniting hole normalities on mouth spray, in closure state, in the time will sending slurry, two rubber valve under curing compound slurries pressure, are outwards split in drill bit core pipe, allow curing compound ejection; In the time of need not sending slurry, in drill bit core pipe, without pressure, two rubber valve self-returns, close mouth spray, prevent that outer soil from entering mouth spray, stop up drill bit core pipe; And prevent that curing compound slurries from overflowing pollution work-yard.
Claims (2)
1. the two of cement-soil mixing pile machine stir a drill bit, comprise bit extension, drill bit core pipe, cutting blade, fixed blade, with moving vane, mouth spray and drill bit; Described drill bit core pipe is hollow cylinder rigid body, and drill bit core pipe upper end is bit extension, and drill bit core pipe lower end is spiral taper drill bit; It is characterized in that:
Described drill bit core pipe be distributed with successively from bottom to top first floor cutting blade, the second layer with moving vane, the 3rd layer of fixed blade, the 4th layer with moving vane and the 5th to layer 7 fixed blade;
Described mouth spray be with first floor admittedly cut blade contour open the circular hole on drill bit core tube wall, in described circular hole, there are two arch-shaped pressing plates, also have two semi-circular rubber valve, have bolt rubber valve to be fixed on the screw in mouth spray outside by described arch-shaped pressing plate;
The middle part of described bit extension has interior hexagonal square hole, and bit extension side has at least four pin-and-holes, described interior hexagonal square hole and four pin-and-holes be connected and drive the outer hexagonal kelly tenon of drill bit to match;
Blades are cut in two the brill picks symmetrical on horizontal plane, that be connected on drill bit core pipe cylindrical of described cutting blade, and the oar face that blade is cut in brill pick becomes 45 degree inclination angles with horizontal plane, bore to dig on the cutting sharp side of cutting blade to be inlaid with alloy teeth;
Described fixed blade is symmetrical on horizontal plane, be connected in two stirrer paddles on drill bit core pipe cylindrical, and the oar face of stirrer paddle becomes 30 degree inclination angles with horizontal plane;
Described is equally distributed two of can rotate freely around drill bit core pipe or three stirrer paddles on horizontal plane with moving vane, and the oar face of stirrer paddle becomes 90 degree inclination angles with horizontal plane; Have clamp will be sleeved on drill bit core pipe cylindrical with moving vane by connecting bolt, there is the locating snap ring on drill bit core pipe cylindrical that is fixed on preventing with the upper and lower vibration of moving vane the upper and lower end face at suit position;
The first floor cutting blade of blade and the distribution of the blade of the 3rd layer of fixed blade in xy plane are vertical each other, the distribution of the blade of the blade of layer 5 fixed blade and layer 6 fixed blade in xy plane is vertical each other, and the distribution of the blade of the blade of layer 6 fixed blade and layer 7 fixed blade in xy plane is vertical each other.
2. two drill bits that stir of a kind of cement-soil mixing pile machine as claimed in claim 1, it is characterized in that: the described blade number of plies can be according to rig bottom and ground level increase and decrease, when rig bottom increases with ground level, can be on layer 7 fixed blade corresponding increase one deck or two layers of fixed blade, while reducing with ground level when rig bottom, can cancel layer 6 or the 6th and layer 7 fixed blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513601.3U CN203463015U (en) | 2013-08-22 | 2013-08-22 | Double-mixing drill of cement-soil mixing pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513601.3U CN203463015U (en) | 2013-08-22 | 2013-08-22 | Double-mixing drill of cement-soil mixing pile machine |
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| Publication Number | Publication Date |
|---|---|
| CN203463015U true CN203463015U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513601.3U Expired - Fee Related CN203463015U (en) | 2013-08-22 | 2013-08-22 | Double-mixing drill of cement-soil mixing pile machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452484A (en) * | 2013-08-22 | 2013-12-18 | 武汉市天宝工程机械有限责任公司 | Double-mixing drilling bit of cement-soil mixing pile machine |
| CN104532830A (en) * | 2015-01-10 | 2015-04-22 | 张永忠 | Cement-soil stirring and pile-forming machine |
| CN105215415A (en) * | 2014-05-27 | 2016-01-06 | 徐文霞 | For the drill unit of processing equipment parts |
| CN105781424A (en) * | 2016-05-03 | 2016-07-20 | 周兆弟 | Variable-diameter drilling bit mechanism for drill stem |
| CN106703705A (en) * | 2016-12-09 | 2017-05-24 | 山东省建筑科学研究院 | Combined type drill applicable to high-spray stirring cement pile |
| CN109577865A (en) * | 2018-12-28 | 2019-04-05 | 青岛理工大学 | Double-high-pressure mixing and spraying pile drill bit and using method thereof |
-
2013
- 2013-08-22 CN CN201320513601.3U patent/CN203463015U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452484A (en) * | 2013-08-22 | 2013-12-18 | 武汉市天宝工程机械有限责任公司 | Double-mixing drilling bit of cement-soil mixing pile machine |
| CN105215415A (en) * | 2014-05-27 | 2016-01-06 | 徐文霞 | For the drill unit of processing equipment parts |
| CN104532830A (en) * | 2015-01-10 | 2015-04-22 | 张永忠 | Cement-soil stirring and pile-forming machine |
| CN105781424A (en) * | 2016-05-03 | 2016-07-20 | 周兆弟 | Variable-diameter drilling bit mechanism for drill stem |
| CN106703705A (en) * | 2016-12-09 | 2017-05-24 | 山东省建筑科学研究院 | Combined type drill applicable to high-spray stirring cement pile |
| CN109577865A (en) * | 2018-12-28 | 2019-04-05 | 青岛理工大学 | Double-high-pressure mixing and spraying pile drill bit and using method thereof |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Lagen Inventor before: He Shuangji |
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Free format text: CORRECT: INVENTOR; FROM: HE SHUANGJI TO: CHEN LAGEN |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Lagen Inventor after: Li Hui Inventor before: Chen Lagen |
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Granted publication date: 20140305 Termination date: 20210822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |