CN201021602Y - Tray expansion aiguille for drilling and expansion once shaping - Google Patents
Tray expansion aiguille for drilling and expansion once shaping Download PDFInfo
- Publication number
- CN201021602Y CN201021602Y CNU2007200951036U CN200720095103U CN201021602Y CN 201021602 Y CN201021602 Y CN 201021602Y CN U2007200951036 U CNU2007200951036 U CN U2007200951036U CN 200720095103 U CN200720095103 U CN 200720095103U CN 201021602 Y CN201021602 Y CN 201021602Y
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- China
- Prior art keywords
- drill bit
- expansion
- central tube
- branch arm
- center pipe
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Abstract
The utility model relates to a dilating drill for the one-step molding of a reamer bit, and consists of a center pipe, and a drill arranged at the lower part of the center pipe. A reaming connecting bar mechanism is additionally arranged at the upper part of the center pipe. The reaming connecting bar mechanism consists of an upper chock block and a lower chock block arranged at the upper part of the center pipe, an upper support saddle arranged at the upper part of the center pipe in a movable fit way, a lower support saddle arranged in the middle of the center pipe in a movable fit way and an upper support arm and a lower support arm between the upper support saddle and the lower support saddle connected flexibly through a pin roll. A runner is respectively arranged on the lower support saddle and the drill and a pin capable of transmitting torques is fixed and arranged on the radials of the top and under-part of the center pipe. The utility model has the advantages of simple in structure, small in volume, good in quake-proof performance and low in manufacturing cost. When a normal hole-boring is conducted to a common filling pile, simultaneously, a hole dilating operation can be accomplished at an assigned depth rapidly and accurately.
Description
Technical field
The utility model belongs to the constructional engineering machinery technical field, particularly relates to a kind of basic engineering construction that is used for and expands one-shot forming and coil drill bit with expansion irritating the brill that volume is little, simple in structure and cost is low that stake can be quickly and accurately when normally creeping into finishes reaming in designated depth.
Background technology
(as building, highway, railway, bridge and harbour basis etc.) used cast-in-place concrete pile technology in basic engineering construction at present, still adopt following system stake technology, as the preformed pile technology, its bearing capacity is reliable, but construction costs height, and the noise and the interference that bring to people when construction make people be difficult to bear, and preformed pile building influence to adjacent in construction is bigger.Moreover drilling hole bored concrete pile technology, though this technology is improved than preformed pile, its construction costs under equal conditions decreases, and exists also that consumptive material is many, construction profit is low and anti-seismic performance does not reach the satisfied deficiency of people.Continuous development along with science and technology, in the construction work nineties, adopted the support disk pile technology, the support disk pile technology is feasible on principle, its bearing capacity ratio common filling pile can double even several times, simultaneously also can be the owner aspect construction costs and save substantial contribution, but its weak point is: 1, because of material and mechanicalness the subject of knowledge and the object of knowledge limit, each dish need repeatedly be done, efficiency of construction is low, influences construction speed.2, need to be equipped with crane and bigger scene and realize that branch tray machine has enough to meet the need.3, accident under the hole easily takes place, push through in the journey by force at branch tray machine, cause hole wall slump and local undergauge, and under the unstable slightly situation in stratum, branch tray machine can not blindly descend in the hand-hole, because of the aperture and the branch tray machine bottom size of holing is similar to, in case the hole of collapsing, fall piece and very easily branch tray machine is blocked, cause branch tray machine to put forward.4, when than the hardpan reaming time, branch tray machine can't get out, and the dish size can not be kept; When in weak soil layer reaming slightly, because of branch tray machine need repeatedly be made dish, soil will can't be made certain physical dimension as the activity back and forth of kneading dough in the process mesopore that squeezes.
Summary of the invention
The utility model provides a kind of basic engineering construction that is used for to expand one-shot forming and coil drill bit with expansion irritating the brill that volume is little, simple in structure and cost is low that stake can be quickly and accurately when normally creeping into finishes reaming in designated depth for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
Bore the expansion one-shot forming and coil drill bit with expansion, comprise a central tube and the drill bit that is installed in the central tube bottom, it is characterized in that: also be provided with the reaming linkage in the central tube middle and upper part, this reaming linkage comprises last block and the following block that is installed in central tube top, be installed in the upper bracket between the block and following block on the central tube movingly, be installed in the undersetting at central tube middle part and upper branch arm and the lower branch arm that between upper bracket and undersetting, flexibly connects movingly by bearing pin, on undersetting and drill bit, be respectively equipped with chute, but the footpath of central tube upper and lower upwards is fixed with the pin of transfer torque.
The utility model can also adopt following technical measures:
At least be provided with two groups of upper branch arms and lower branch arm between described upper bracket and the undersetting.
The described block and following block and central tube gone up is that stationary fit is installed.
Chute on described undersetting and the drill bit is the endoporus chute.
All be fixed with reaming cutter on described upper branch arm and the lower branch arm.
The length of described upper branch arm and lower branch arm is isometric structure.
The length of described upper branch arm and lower branch arm also can be not isometric structure.
Advantage and the good effect that the utlity model has are: because the utility model effectively is combined into one castinplace pile with construction drill bit and Counterboring apparatus, make this drill bit can finish normal boring needs in construction, also can finish the operation of expansion dish at any time.When needs are holed, central tube boring part is used with the stake machine, less to the pure drilling efficiency influence of rig; When being bored into certain depth, can finish reaming in designated depth quickly and accurately by the Counterboring apparatus on drill bit top, can greatly shorten the duration of a project like this.Because dish is to form through cutting, and is very little to the perturbation of soil layer, is difficult for taking place accident at the bottom of the hole, and can guarantees the physical dimension of cutting preferably.In addition, the utility model not only volume is little, and execute-in-place need not to be equipped with crane, is not subjected to the restriction of construction plant size; And simple in structure, anti-seismic performance is good, and low cost of manufacture can be the user and saves substantial contribution on construction costs.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is that the utility model is the sectional view of three groups of support arm structures.
Among the figure: 1, central tube; 2, undersetting; 3, drill bit 3-1, endoporus chute; 4, lower branch arm 4-1, reaming cutter; 5, upper branch arm; 5-1, reaming cutter; 6, upper bracket; 7, go up pin; 8, following pin; 9, endoporus chute 10, bearing pin; 11, go up block; 12, following block.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 4, bore the expansion one-shot forming and coil drill bit with expansion, comprise a central tube 1 and the drill bit 3 that is installed in the central tube bottom, described drill bit 3 is provided with endoporus chute 3-1, also be provided with the reaming linkage in central tube 1 middle and upper part, this reaming linkage comprises that stationary fit is packed in the last block 11 and the following block 12 on central tube top, between block on the central tube 11 and following block 12 upper bracket 6 is installed movingly, at the central tube middle part undersetting 2 is installed movingly.The utility model can by bearing pin 10 uniform three groups of upper branch arms 5 and the lower branch arms 4 of being connected with, all be fixed with several reaming cutters 4-1 and 5-1 according to the shape and the soil property situation of castinplace pile boring on described upper branch arm and the lower branch arm between upper bracket and undersetting.The length of described upper branch arm and lower branch arm can be isometric structure according to the shaped design of boring, also can be not isometric structure.On lower branch arm, be provided with endoporus chute 9, but central tube top promptly directly upwards is fixed with the last pin 7 of transfer torque near undersetting 2 tops, the central tube bottom promptly upwards is fixed with down pin 8 near the footpath of drill bit 3 tops, and central tube is all stretched out at described both ends of going up pin and following pin.
Operating principle of the present utility model is:
When needing boring, central tube is connected rig, and when rig was just changeing, driving central tube 1 was just changeing, following pin 8 slips in the drill bit 3 by the endoporus chute 3-1 on the drill bit 3, drill bit 3 is along with central tube 1 clockwise rotates at this moment, and cutting hole bed rock soil is during the rig pressurization, because of the terminal level of approximation direction of endoporus chute 3-1, following pin 8 can be because of pressurization skid off from chute, but rig institute plus-pressure is delivered on the drill bit 3, reaching pressurization and creeping into.Go up simultaneously pin 7 and be in the top of undersetting 2, make upper branch arm 5, lower branch arm 4 be in the withdrawal free state, thereby realize rig under just commentaries on classics situation, drill bit 3 is finished the boring of vertical direction.
When being bored into certain depth and needing reaming, make the rig counter-rotating, hole bed rock soil is given 3 one frictional force of drill bit, drill bit does not rotate, and pin 8 rotates with rig down, deviate from from drill bit along endoporus chute 9, this moment, drill bit remained static, and the center tube edge rotates the limit and down moves, upper bracket 6 is along with central tube down moves, last pin 7 is down motion also, and slips in the endoporus chute 9 of undersetting 2, and central tube drives undersetting 2, upper branch arm 6 and lower branch arm 4 rotate, along with last pin distance of glide is big more, upper branch arm and lower branch arm open big more, and the aperture of reaming is at this moment also strengthened thereupon, thereby realize the operation of expansion dish.Can reach by the size that borer drill rod is determined the expansion dish to the distance and the mobile speed of bottom offset on the ground and whether put in place.
After reaming finishes, rig just changeing and on carry drilling rod, last pin 7 slides in the endoporus chute and moves to undersetting 2 on the undersetting 2 relatively, upper branch arm 5 and lower branch arm 4 come back to free state, along with moving on the central tube 1, following pin 8 also moves on gradually, slips into again in the endoporus chute of drill bit 3, and central tube begins to drive drill bit 3 again and normally holes.Repeat successively, until pore-forming.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. a brill expansion one-shot forming is coiled drill bit with expansion, comprise a central tube and the drill bit that is installed in the central tube bottom, it is characterized in that: also be provided with the reaming linkage in the central tube middle and upper part, this reaming linkage comprises last block and the following block that is installed in central tube top, be installed in the upper bracket between the block and following block on the central tube movingly, be installed in the undersetting at central tube middle part and upper branch arm and the lower branch arm that between upper bracket and undersetting, flexibly connects movingly by bearing pin, on undersetting and drill bit, be respectively equipped with chute, but the footpath of central tube upper and lower upwards is fixed with the pin of transfer torque.
2. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, it is characterized in that: be provided with two groups of upper branch arms and lower branch arm between described upper bracket and the undersetting at least.
3. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, it is characterized in that: the described block and following block and central tube gone up is that stationary fit is installed.
4. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, and it is characterized in that: the chute on described undersetting and the drill bit is the endoporus chute.
5. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, it is characterized in that: all be fixed with reaming cutter on described upper branch arm and the lower branch arm.
6. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, and it is characterized in that: the length of described upper branch arm and lower branch arm is isometric structure.
7. brill according to claim 1 expands one-shot forming and coils drill bit with expansion, and it is characterized in that: the length of described upper branch arm and lower branch arm also can be not isometric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200951036U CN201021602Y (en) | 2007-01-31 | 2007-01-31 | Tray expansion aiguille for drilling and expansion once shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200951036U CN201021602Y (en) | 2007-01-31 | 2007-01-31 | Tray expansion aiguille for drilling and expansion once shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021602Y true CN201021602Y (en) | 2008-02-13 |
Family
ID=39089012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200951036U Expired - Fee Related CN201021602Y (en) | 2007-01-31 | 2007-01-31 | Tray expansion aiguille for drilling and expansion once shaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021602Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879063A (en) * | 2015-06-01 | 2015-09-02 | 王振环 | Hole expanding device |
| CN107896907A (en) * | 2017-11-17 | 2018-04-13 | 刘铁英 | A kind of bamboo bamboo root and stem of certain plants cutter device |
| CN109519126A (en) * | 2018-12-25 | 2019-03-26 | 天津科技大学 | Bionic micropore diameter underground mole drilling reamer structure |
| CN112983282A (en) * | 2021-03-05 | 2021-06-18 | 常州工学院 | Three-section guiding double-cone six-wing large-diameter reaming bit and construction method thereof |
-
2007
- 2007-01-31 CN CNU2007200951036U patent/CN201021602Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879063A (en) * | 2015-06-01 | 2015-09-02 | 王振环 | Hole expanding device |
| CN104879063B (en) * | 2015-06-01 | 2017-07-25 | 长安大学 | A kind of Counterboring apparatus |
| CN107896907A (en) * | 2017-11-17 | 2018-04-13 | 刘铁英 | A kind of bamboo bamboo root and stem of certain plants cutter device |
| CN109519126A (en) * | 2018-12-25 | 2019-03-26 | 天津科技大学 | Bionic micropore diameter underground mole drilling reamer structure |
| CN112983282A (en) * | 2021-03-05 | 2021-06-18 | 常州工学院 | Three-section guiding double-cone six-wing large-diameter reaming bit and construction method thereof |
| CN112983282B (en) * | 2021-03-05 | 2023-02-28 | 常州工学院 | Three-section guiding double-cone six-wing large-diameter reaming bit and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20100131 |