CN204436260U - Combination type rotating digs drill bit - Google Patents
Combination type rotating digs drill bit Download PDFInfo
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- CN204436260U CN204436260U CN201520080161.6U CN201520080161U CN204436260U CN 204436260 U CN204436260 U CN 204436260U CN 201520080161 U CN201520080161 U CN 201520080161U CN 204436260 U CN204436260 U CN 204436260U
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Abstract
The utility model relates to combination type rotating and digs drill bit, comprise cylindrical shell, the upper shed of cylindrical shell is provided with cover plate, connect the external surface that square toes are arranged on cover plate, closing device passes cover plate and is arranged on the inside of cylindrical shell, drill bit assembly is flexibly connected with cylindrical shell by bearing pin, described drill bit assembly comprises torus, at toric bottom margin, multiple cut drill is installed, there is angle in axis and the toric axis of cut drill, hook plate is arranged on toric inner surface, connect the inner surface that otic placode is symmetricly set on torus opposite side, hook plate is processed with dog hole, connect on otic placode and be processed with axis hole.Can to be applicable in puddle and soil layer containing the boring piling work of large-scale pebble ground by above-mentioned design, to overcome the flat and cone end churning driven head of tradition and run into the shortcoming that large-scale cobble cannot continue to construct, thus greatly improve churning driven head efficiency of construction.
Description
Technical field
The utility model relates to a kind of rotary drilling rig drilling tool field, is specially adapted to high back filled region, and back fill course is containing the spiral-digging pore operation in the regions such as a large amount of micro-weathered sandstone, block stone, gravel, cobble.
Background technology
In civil engineering process, often use rotary drilling rig and carry out boring piling work to ground, churning driven head is one of most important part of rotary drilling rig, and its structural performance is to rotary drilling rig operating efficiency important.At present, the churning driven head being applicable to soil layer geology is Double bottom churning driven head, polylith base plate is provided with in bottom, base plate center and surrounding are provided with cutting teeth, and earth enters into cylindrical shell from base plate gap, adopts this kind of structure when running into large-scale cobble, because stone cannot be broken, thus cannot enter from base plate gap, cause continuing boring, hinder excavation process.
Further, a kind of churning driven head disclosed in patent 201420011007.9, bit location is provided with polylith cutting plate, overall formation pyramidal structure, this kind of drill bit in use can run into large-scale cobble cannot enter cylindrical shell problem from the gap of cutting plate equally, based on above-mentioned analysis, need to develop a kind of churning driven head be applicable to containing large-scale gravel, cobble in viscous soil horizon.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of combination type rotating and digs drill bit, this drill bit structure is simple, the boring piling work of the ground containing large-scale gravel, cobble, gentle breeze steinkern in puddle and soil layer can be applicable to, can overcome tradition flat and cone the end churning driven head run into large-scale stone cannot continue construct shortcoming, thus greatly improve churning driven head efficiency of construction, ensure construction speed, improve construction quality simultaneously.
And the utility model drilling tool adds the vertical salient rib in a few road around drilling pipe; the thin matter soil layer got off by bit cutting is squeezed on hole wall through rib; filler opening parietal suture gap; form the soil layer diaphragm that one deck is good; wall stability can better be maintained not excessive toward surrounding with the cement grout keeping building, ensure pile quality.
The object of utility model is achieved in that
Combination type rotating digs drill bit, comprise cylindrical shell, the upper shed of cylindrical shell is provided with cover plate, connect the external surface that square toes are arranged on cover plate, closing device passes cover plate and is arranged on the inside of cylindrical shell, drill bit assembly is flexibly connected with cylindrical shell by bearing pin, described drill bit assembly comprises torus, at toric bottom margin, multiple cut drill is installed, there is angle in axis and the toric axis of cut drill, hook plate is arranged on toric inner surface, connect the inner surface that otic placode is symmetricly set on torus opposite side, hook plate is processed with dog hole, connect on otic placode and be processed with axis hole.
The external surface of described cylindrical shell is vertically provided with salient rib.
The inner surface of described cover plate is provided with boss, and boss center is processed with through hole, and the both sides of boss are that symmetrical centre is provided with two crossbeams with centre bore, are symmetrically arranged with two longerons between crossbeam.
Described closing device comprises push rod, push rod is successively through being arranged on the through hole connected on square toes and cylindrical shell, between the shaft shoulder of push rod head and the external surface of cover plate, spring is installed, push rod passes firm banking in the inside of cylindrical shell, the other end of connecting rod and push rod is rotationally connected by bearing pin, and one end and the connecting rod of coupler body are rotationally connected by bearing pin, and coupler body center and base pass through pinned connection, the other end of coupler body is processed with hook, and firm banking and base are all arranged on the inner surface of cylindrical shell.
The utility model has following excellent effect:
The utility model adopts above-mentioned design, and a kind of combination type rotating can be provided to dig drill bit.This combination type rotating digs drill bit and adopts combined type, without back-plane design, can overcome tradition flat and cone the end churning driven head run into large-scale block of stone cannot continue construct shortcoming, revolving in the process of digging, cut drill is revolved soil layer and is dug, when drill bit is when running into large-scale block of stone, owing to not having base arrangement to hinder, can easily block stone entirety be wrapped in puddle, and do not need to carry out fragmentation and just large-scale block of stone can be taken out from soil layer, thus greatly improve churning driven head efficiency of construction; Revolving in the process of digging by applying downward pressure to cylinder, by puddle compacting in cylinder, owing to cover plate being provided with crossbeam and longitudinal beam structure, thus ensure that puddle is mentioned in process can not come off at drill bit, in order to ensure the viscosity of soil, water-wet can also be watered by the through hole on cover plate to soil if desired, ensure that soil can not come off in cylindrical shell when drill bit extracts; Revolving in the process of digging and by being arranged on the salient rib of barrel outer surface, compacting rounding can being carried out to hole wall, ensure that the quality of pore-forming simultaneously; When revolve dig end after can by the bar that bears down on one, thus drive coupler body work, drill bit put down, at shake cylindrical shell, just soil can be shaken off, before this revolves and digs, drill bit be pressed down, the hook plate of drill bit just can be hooked by coupler body, thus install drill bit, again carry out revolving digging, adopt above-mentioned churning driven head, can construction speed be ensured, improve construction quality simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is front of the present utility model stereochemical structure diagrammatic elevation view.
Fig. 2 looks stereochemical structure diagrammatic side view in the end of the present utility model.
Fig. 3 is the perspective view of drill bit assembly of the present utility model.
In figure: connect square toes 1, cover plate 2, cylindrical shell 3, drill bit assembly 4, closing device 5, boss 202, longeron 203, crossbeam 204, salient rib 301, hook plate 401, dog hole 402, torus 403, cut drill 404, connect otic placode 405, axis hole 406, spring 501, hook 502, base 503, coupler body 504, connecting rod 505, firm banking 506, push rod 507.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
See Fig. 1-3, combination type rotating digs drill bit, comprise cylindrical shell 3, the upper shed of cylindrical shell 3 is provided with cover plate 2, connect the external surface that square toes 1 are arranged on cover plate 2, closing device 5 passes cover plate 2 and is arranged on the inside of cylindrical shell 3, drill bit assembly 4 is flexibly connected with cylindrical shell 3 by bearing pin, described drill bit assembly 4 comprises torus 403, at the bottom margin of torus 403, multiple cut drill 404 is installed, there is angle in the axis of cut drill 404 and the axis of torus 403, hook plate 401 is arranged on the inner surface of torus 403, connect the inner surface that otic placode 405 is symmetricly set on torus 403 opposite side, hook plate 401 is processed with dog hole 402, connect on otic placode 405 and be processed with axis hole 406.
The external surface of cylindrical shell 3 is vertically provided with salient rib 301.
The inner surface of cover plate 2 is provided with boss 202, and boss center is processed with through hole 201, and the both sides of boss 202 are that symmetrical centre is provided with two crossbeams 204 with centre bore, are symmetrically arranged with two longerons 203 between crossbeam 204.
Closing device 5 comprises push rod 507, push rod 507 is successively through being arranged on the through hole connected on square toes 1 and cylindrical shell 3, between the shaft shoulder of push rod 507 head and the external surface of cover plate 2, spring 501 is installed, push rod 507 passes firm banking 506 in the inside of cylindrical shell 3, connecting rod 505 is rotationally connected by bearing pin with the other end of push rod 507, one end and the connecting rod 505 of coupler body 504 are rotationally connected by bearing pin, coupler body 504 center and base 503 pass through pinned connection, the other end of coupler body 504 is processed with hook 502, and firm banking 506 and base 503 are all arranged on the inner surface of cylindrical shell 3.
Device specific works process of the present utility model and principle are:
With reference to integral installation distribution structure schematic diagram 1-3, adopt said structure, in work progress, drilling rod is connected with the square hole be connected above square toes, and fixed by connecting pin, drilling rod is mentioned above drill bit to appointment pile hole position, drill bit is issued to ground, start to rotate forward, revolve dig while drilling rod certain pressure is applied to drill bit, drill bit is started working, figure slag in stake holes enters into cylinder interior by bottom of cylinder along with creeping into of drill bit, and by pressurization, by closely knit for the pressurization of the soil of cylinder interior, after cylinder is filled completely, drilling rod stops operating, and cylinder is risen to ground, move to deslagging position, the push rod with device is pressed off downwards by lifting rig platen, open and with mechanism action, the hook plate of hook and drill bit assembly is come off, drill bit assembly rotates around the bearing pin be connected with cylindrical shell and opens, by positive and negative rotating cylinder, produce shake, the soil of inner barrel is shaken off, drilling rod drives drill bit to transfer, the hook of open-and-close mechanism device is connected again with the hook plate on drill bit, complete the installation of drill bit, again carry out revolving the work of digging, until whole stake holes is revolved dig end.
The utility model has the advantage of, this combination type rotating digs drill bit and adopts combined type, without back-plane design, can overcome tradition flat and cone the end churning driven head run into large-scale cobble cannot continue construct shortcoming, revolving in the process of digging, cut drill is revolved soil layer and is dug, when drill bit is when running into large-scale cobble, hinder owing to there is no base arrangement, can easily cobble entirety be wrapped in puddle body, and do not need to carry out fragmentation and just large-scale cobble can be taken out from soil layer, thus greatly improve churning driven head efficiency of construction, soil layer can be applied on a large scale, clay layer, the complex random systems such as boulder bed.And the vertical salient rib in a few road should be added by drill bit around drilling pipe; the thin matter soil layer got off by bit cutting is squeezed on hole wall through rib; filler opening parietal suture gap; form the soil layer diaphragm that one deck is good; wall stability can better be maintained not excessive toward surrounding with the cement grout keeping building, ensure pile quality.The utility model is simple and reasonable, easy to process, and intensity is higher, and it is convenient to change, and application is comparatively extensive, and result of use is good.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong to the protection domain of technical solutions of the utility model.
Claims (4)
1. combination type rotating digs drill bit, comprise cylindrical shell (3), the upper shed of cylindrical shell (3) is provided with cover plate (2), connect the external surface that square toes (1) are arranged on cover plate (2), closing device (5) is through cover plate (2) and be arranged on the inside of cylindrical shell (3), it is characterized in that: drill bit assembly (4) is flexibly connected with cylindrical shell (3) by bearing pin, described drill bit assembly (4) comprises torus (403), at the bottom margin of torus (403), multiple cut drill (404) is installed, there is angle in the axis of cut drill (404) and the axis of torus (403), hook plate (401) is arranged on the inner surface of torus (403), connect the inner surface that otic placode (405) is symmetricly set on torus (403) opposite side, hook plate (401) is processed with dog hole (402), connect on otic placode (405) and be processed with axis hole (406).
2. combination type rotating according to claim 1 digs drill bit, it is characterized in that: the external surface of described cylindrical shell (3) is vertically provided with salient rib (301).
3. combination type rotating according to claim 1 digs drill bit, it is characterized in that: the inner surface of described cover plate (2) is provided with boss (202), boss center is processed with through hole (201), the both sides of boss (202) are that symmetrical centre is provided with two crossbeams (204) with centre bore, are symmetrically arranged with two longerons (203) between crossbeam (204).
4. combination type rotating according to claim 1 digs drill bit, it is characterized in that: described closing device (5) comprises push rod (507), push rod (507) is successively through being arranged on the through hole connected on square toes (1) and cylindrical shell (3), between the shaft shoulder of push rod (507) head and the external surface of cover plate (2), spring (501) is installed, push rod (507) passes firm banking (506) in the inside of cylindrical shell (3), connecting rod (505) is rotationally connected by bearing pin with the other end of push rod (507), one end and the connecting rod (505) of coupler body (504) are rotationally connected by bearing pin, coupler body (504) center and base (503) pass through pinned connection, the other end of coupler body (504) is processed with hook (502), firm banking (506) and base (503) are all arranged on the inner surface of cylindrical shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080161.6U CN204436260U (en) | 2015-02-05 | 2015-02-05 | Combination type rotating digs drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080161.6U CN204436260U (en) | 2015-02-05 | 2015-02-05 | Combination type rotating digs drill bit |
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| CN204436260U true CN204436260U (en) | 2015-07-01 |
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| CN201520080161.6U Active CN204436260U (en) | 2015-02-05 | 2015-02-05 | Combination type rotating digs drill bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278084A (en) * | 2017-01-06 | 2018-07-13 | 郑州富岛机械设备有限公司 | A kind of drill hammer of New drilling machine |
-
2015
- 2015-02-05 CN CN201520080161.6U patent/CN204436260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278084A (en) * | 2017-01-06 | 2018-07-13 | 郑州富岛机械设备有限公司 | A kind of drill hammer of New drilling machine |
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