CN202937211U - Shaft drill bit of sandy gravel stratum radial well - Google Patents
Shaft drill bit of sandy gravel stratum radial well Download PDFInfo
- Publication number
- CN202937211U CN202937211U CN 201220629115 CN201220629115U CN202937211U CN 202937211 U CN202937211 U CN 202937211U CN 201220629115 CN201220629115 CN 201220629115 CN 201220629115 U CN201220629115 U CN 201220629115U CN 202937211 U CN202937211 U CN 202937211U
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- stone
- fixed
- drill bit
- water inlet
- inlet pipe
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Abstract
The utility model provides a shaft drill bit of a sandy gravel stratum radial well. The shaft drill bit comprises a water inlet pipe, wherein a drill stem connected flange is fixed on the upper end of the water inlet pipe, a stone fishing barrel is fixed on the lower end of the water inlet pipe, the stone fishing barrel is a barrel, the upper end of which is closed, and the lower end of which is opened, the tail end of the water inlet pipe stretches into the stone fishing barrel, a plurality of stone fishing rods are arranged on the inner wall of the opened end of the stone fishing barrel, one end of each stone fishing rod is fixed on the wall of the stone fishing barrel, the other end of each stone fishing rod stretches into the axis of the stone fishing barrel, the plurality of stone fishing rods are peripherally distributed along the inner walls of the plurality of stone fishing rods, a plurality of horizontal support plates are fixed at a place of the water inlet pipe, which is close to the drill stem connected flange, the horizontal support plates are identical in length and are positioned in the same horizontal plane, a circular framework is fixed on the periphery of the horizontal support plates, a plurality of oblique support plates are fixed between the circular framework and the stone fishing barrel, and alloy cutters are fixed on the outer side of each oblique support plate and the end surface of the opened end of the stone fishing barrel. The shaft drill bit provided by the utility model can be used for fishing gravels with large diameter, which cannot be discharged through a drill stem, so that a process of drilling a shaft is simplified, and the efficiency is improved.
Description
Technical field
The utility model relates to a kind of drill bit, is specifically related to a kind of sand-pebble layer vertical shaft drill bit used.
Background technology
Radial is by the large diameter collecting well of a bite and the arbitrary elevation in collecting well and horizontal direction is thrown the multilayer with certain-length into to the aquifer, several extremely tens of horizontal radiation pipes are formed.The collecting well bore diameter for holing in the sand-pebble layer of particle diameter greater than 200mm, adopts the rig pore-forming of commonly using at present more difficult usually greater than 3.5m both at home and abroad.Because bore diameter is large, if adopt the slewing drilling machine positive-circulation drilling, the impulse force of slush pump is difficult to cobble is suspended, and with outside mud rising overfolw hole, so method commonly used is reverse circulation drilling, namely adopt slush pump to be stirred loose sandy gravel by drill bit and extract out from drilling rod, in mud recirculation flow hand-hole, due to the drill pipe diameter restriction, larger cobble can't be discharged from drilling rod, need separately these to be pulled out than bowlder stone, could continue boring, boring procedure is loaded down with trivial details, efficient is low.
The utility model content
The purpose of this utility model is to provide a kind of sand-pebble layer radial vertical shaft drill bit, and it can be mentioned in process at drill bit diameter can't be picked up by the cobble that drilling rod is discharged more greatly, makes and bores the vertical shaft process simplification, raises the efficiency.
To achieve these goals, technical solution of the present utility model is:
a kind of sand-pebble layer radial vertical shaft drill bit, comprise water inlet pipe, the water inlet pipe upper end is fixed with the stacks flange, the lower end is fixed with drags for the stone bucket, drag for the staving that the stone bucket is the upper end closed lower ending opening, the water inlet pipe end stretches into and drags in the stone bucket, dragging for stone bucket openend inwall is provided with some and drags for the stone rod, respectively dragging for stone rod one end is fixed in and drags for that on stone bucket bucket wall, the other end stretches to the axle center of dragging for the stone bucket, and respectively drag for the length of stone rod less than the radius that drags for stone bucket inwall, some are dragged for Shi Bangyan and drag for stone bucket inwall and circumferentially distribute, position near the stacks flange on water inlet pipe is fixed with some horizontal supporting plates, each horizontal supporting plate is equal in length and be located in the same horizontal plane, periphery at horizontal supporting plate is fixed with circular frame, circular frame and drag for and be fixed with several bearing diagonal plates between the stone bucket, each bearing diagonal plate outside and drag on the openend end face of stone bucket and all be fixed with alloy knife.
The utility model sand-pebble layer radial vertical shaft drill bit, wherein, described each plane, wire rope place with drag for the angle a of stone bucket inwall less than 90 °.
The utility model sand-pebble layer radial vertical shaft drill bit, wherein, described each plane, wire rope place is 70 ° with the angle a that drags for stone bucket inwall.
The utility model sand-pebble layer radial vertical shaft drill bit, wherein, described each horizontal supporting plate is equal in length and circumferentially uniform along described water inlet pipe outer wall.
The utility model sand-pebble layer radial vertical shaft drill bit, wherein, described each alloy knife is at the bearing diagonal plate and drag for evenly distribution on the stone bucket.
The utility model sand-pebble layer radial vertical shaft drill bit, wherein, the described Shi Bangwei of dragging for has wire rope or reinforcing bar or the narrow steel plate of elasticity and rigidity.
After adopting such scheme, due to the utility model sand-pebble layer radial vertical shaft drill bit with dragging for the stone bucket, drag for the stone bucket and be provided with wire rope, mention in process at drill bit, cobble can be by the wire rope gear in dragging for the stone bucket, can pick up the cobble that diameter can't be discharged by drilling rod more greatly, make and bore the vertical shaft process simplification, raise the efficiency.
In addition, each plane, wire rope place, more easily is pressed into cobble and drags in the stone bucket less than 90 ° with the angle a that drags for stone bucket inwall.
Description of drawings
Fig. 1 is the front view of the utility model sand-pebble layer radial vertical shaft drill bit;
Fig. 2 is the top view of the utility model sand-pebble layer radial vertical shaft drill bit.
The specific embodiment
as Fig. 1, shown in 2, the drill bit of sand-pebble layer radial vertical shaft anti-circulation slewing drilling machine used comprises water inlet pipe 1, water inlet pipe 1 upper end is one-body molded stacks flange 11, the lower end is welded with drags for stone bucket 2, drag for stone bucket 2 and be upper end closed, the staving of lower ending opening, water inlet pipe 1 end stretches into and drags in stone bucket 2, drag for the wire rope 21 that the 2 openend inwall anchorings of stone bucket have φ 25mm, each wire rope 21 1 ends are fixed in and drag on 2 barrels of walls of stone bucket, the other end stretches to the axle center of dragging for stone bucket 2, the length of wire rope 21 is less than the radius that drags for stone bucket 2 inwalls, many wire rope 21 circumferentially distribute along dragging for stone bucket 2 inwalls, and it is better that the stone effect is dragged on many wire rope 21 planes, place when dragging for stone bucket 2 inwall angle α less than 90 °, when α is 70 °, effect is best, position near stacks flange 11 on water inlet pipe 1 is welded with many horizontal supporting plates 3, each horizontal supporting plate 3 is equal in length and circumferentially uniform along water inlet pipe 1 outer wall, the peripheral solder of each horizontal supporting plate 3 has circular frame 4, circular frame 4 and drag between stone bucket 2 upper ends and be welded with a plurality of bearing diagonal plates 5, each bearing diagonal plate 5 outsides and drag on the openend end face of stone bucket 2 and all be welded with a plurality of alloy knifes 6, a plurality of alloy knifes 6 are in bearing diagonal plate 5 outsides and drag on stone bucket 2 openends evenly and distribute, to drag for aiguille during use is connected on the drilling rod of slewing drilling machine by stacks flange 11, switch on power and begin boring, in boring procedure, the cobble that diameter is less such as particle diameter are less than 3/4 cobble of drilling rod internal diameter, extracted out by the water inlet 12 of water inlet pipe 1 by the sandstone slush pump, the cobble that diameter is larger enters under drill pressure and drags in stone bucket 2, owing to dragging for stone bucket 2 inwalls, wire rope is housed, wire rope has certain elasticity, and because of wirerope diameter larger, certain rigidity is arranged, mention in process at drill bit, cobble can be by the wire rope gear in dragging for the stone bucket, can pick up diameter less than the cobble that drags for stone bucket internal diameter 3/4.In order conveniently to drag for stone, at prefabricated 4 the reinforced concrete knolls on every side of holing, the high 1.0m of pier is placed in shaft drilling machine on pier, and with pier in pre-buried shaped steel be weldingly connected, like this, in the time of need to dragging for stone at every turn, to drag for aiguille and mention, and drag for stone cylinder 2 and exceed water level in boring, and be convenient to stone in bucket is taken out.
In order to prevent the hole that collapses in the vertical shaft boring procedure, need to guarantee that the water level of mud in the hole is higher than more than groundwater table 2m, and require mud balance to be not less than 1.08, after anti-circulation slewing drilling machine pore-forming, adopt well casing under floating method, well casing is concrete reinforced pipe, external diameter is not less than 3m, wall thickness is not less than 0.2m, and length is not less than 1m, the orlop well setting end.Be lifted in wellhole the well seat floating, well casing is lifted on the well seat again, one joint connect one save land pile on, adopt under floating method and manage, until arrive desired depth under the well seat, and guarantee that well casing is upright, the well casing joint adopts the waterproofing materials closed interface, banket around well casing at last closely knit, To Construction of Silo is completed;
The above embodiment is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (6)
1. sand-pebble layer radial vertical shaft drill bit, it is characterized in that: comprise water inlet pipe (1), water inlet pipe (1) upper end is fixed with stacks flange (11), the lower end is fixed with drags for stone bucket (2), drag for stone bucket (2) and be the staving of upper end closed lower ending opening, water inlet pipe (1) end stretches into and drags in stone bucket (2), dragging for stone bucket (2) openend inwall is provided with some and drags for stone rod (21), respectively dragging for stone rod (21) one ends is fixed in and drags for that on stone bucket (2) bucket wall, the other end stretches to the axle center of dragging for stone bucket (2), and respectively drag for the length of stone rod (21) less than the radius that drags for stone bucket (2) inwall, some are dragged for stone rod (21) and circumferentially distribute along dragging for stone bucket (2) inwall, the upper position near stacks flange (11) of water inlet pipe (1) is fixed with some horizontal supporting plates (3), each horizontal supporting plate (3) is equal in length and be located in the same horizontal plane, be fixed with circular frame (4) in the periphery of horizontal supporting plate (3), circular frame (4) and drag for and be fixed with several bearing diagonal plates (5) between stone bucket (2), each bearing diagonal plate (5) outside and drag on the openend end face of stone bucket (2) and all be fixed with alloy knife (6).
2. sand-pebble layer radial vertical shaft drill bit as claimed in claim 1 is characterized in that: described each wire rope (21) plane, place with drag for the angle a of stone bucket (2) inwall less than 90 °.
3. sand-pebble layer radial vertical shaft drill bit as claimed in claim 2 is characterized in that: described each wire rope (21) plane, place is 70 ° with the angle a that drags for stone bucket (2) inwall.
4. sand-pebble layer radial vertical shaft drill bit as claimed in claim 3, it is characterized in that: described each horizontal supporting plate (3) is equal in length and circumferentially uniform along described water inlet pipe (1) outer wall.
5. sand-pebble layer radial vertical shaft drill bit as claimed in claim 4 is characterized in that: described each alloy knife (6) is at bearing diagonal plate (5) and drag for that stone bucket (2) is upper evenly to distribute.
6. sand-pebble layer radial vertical shaft drill bit as claimed in claim 5, is characterized in that: described wire rope or reinforcing bar or the narrow steel plate of stone rod (21) for having elasticity and rigidity that drag for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629115 CN202937211U (en) | 2012-11-23 | 2012-11-23 | Shaft drill bit of sandy gravel stratum radial well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629115 CN202937211U (en) | 2012-11-23 | 2012-11-23 | Shaft drill bit of sandy gravel stratum radial well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937211U true CN202937211U (en) | 2013-05-15 |
Family
ID=48321455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629115 Expired - Fee Related CN202937211U (en) | 2012-11-23 | 2012-11-23 | Shaft drill bit of sandy gravel stratum radial well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943643A (en) * | 2012-11-23 | 2013-02-27 | 中国水利水电科学研究院 | Drill bit for shaft of radial well on sandy gravel stratum |
-
2012
- 2012-11-23 CN CN 201220629115 patent/CN202937211U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943643A (en) * | 2012-11-23 | 2013-02-27 | 中国水利水电科学研究院 | Drill bit for shaft of radial well on sandy gravel stratum |
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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: 20130515 Termination date: 20131123 |