CN202227989U - Combined drilling tool - Google Patents
Combined drilling tool Download PDFInfo
- Publication number
- CN202227989U CN202227989U CN2011203431237U CN201120343123U CN202227989U CN 202227989 U CN202227989 U CN 202227989U CN 2011203431237 U CN2011203431237 U CN 2011203431237U CN 201120343123 U CN201120343123 U CN 201120343123U CN 202227989 U CN202227989 U CN 202227989U
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- lower blade
- cutter hub
- blade
- expansion
- bar
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Abstract
A combined drilling tool comprises a hollow rod body, a plurality of tool bodies, an expansion cutter arbor, a lower blade, an oil cylinder and an upper blade, wherein the tool bodies are fixed on the blades; the lower blade has a peripheral surface which is uniformly distributed and fixed at the lower part of the hollow rod body in a horizontal radial manner; the expansion cutter arbor is arranged below the lower blade, and arranged symmetrically along the hollow rod body in the radial direction; one end of the expansion cutter arbor is hinged to a pin seat of the hollow rod body; a connecting rod penetrates a straight groove formed on the wall of the hollow rod body; one end of the connecting rod is hinged with the middle of the expansion cutter arbor; and the other end of the connecting rod is hinged to a connecting fork at the end of the piston rod of the oil cylinder. Besides the common straight hole drilling function, the combined drilling tool for expanding a bottom, which adopts a combined-type drilling structure and further has the advantage that when bottom expanding or broaching operation is required, the expansion cutter arbor can be opened by operating the oil cylinder, so as to enlarge the sectional area of the pile end and the pile body of a bearing pile. The drilling tool can be used for building various bottom expanding piles and gourd poles, and has the obvious characteristics of convenience in construction, simplicity in operation, short construction period and the like.
Description
Technical field
The utility model belongs to a kind of drilling tool of building trade construction, is specifically related to a kind of way-type drilling unit.
Background technology
Construction project development need along with highrise building, large bridge, city underground and river dyke; Novel bearing stakes such as various expanded bore piles and Bottle gourd pile are used in a large number; And build the construction technology that these bearing pegs will adopt preformed pile combine to bore the reaming grouting pile-forming, promptly utilize the integrated drilling tool of boring and reaming function to hole, according to designing requirement to straight hole according to the certain distance reaming; Bore and utilize auger stem to discharge soil after pick is accomplished; Inject concrete after putting into preformed pile then, treat that concrete fully solidifies the back and is combined into expanded bore pile and Bottle gourd pile with preformed pile, the bearing capacity of this bearing peg generally improves more than 50% than prefabricated straight stake and ready-mixed concrete stake.Therefore, the boring that a kind of method of worker with it of needs adapts, the way-type drilling unit of reaming, this way-type drilling unit can enlarge stake end and pile body section, thereby improves the bearing capacity of stake greatly.The combined drill that does not at present still have this function when carrying out ream operation if desired, is replaced by borehole-enlarging drilling tool after must drilling rod being mentioned, and this can influence construction speed and workmanship.
Summary of the invention
The purpose of the utility model is the needs according to the building trade construction, proposes a kind of way-type drilling unit that can enlarge stake end and pile body section, has characteristics such as bearing capacity of single pile height, strength of materials height and construction costs are low.
For reaching above purpose, the solution that the utility model adopted is:
A kind of way-type drilling unit comprises:
Hollow lever comprises grouting channel, key seat, straight trough and installation plug screw;
A plurality of cutter hubs, each cutter hub comprise a cutter head and a hilt;
Expand knife bar, comprise bar and be installed in a plurality of expansion cutter hubs on the bar, each expands cutter hub and comprises that one expands a cutter head and an expansion hilt;
Lower blade; Connecting rod; Be installed in the oil cylinder and the blade of hollow lever inner chamber;
It is characterized in that:
Said lower blade has 2-4, is fixed on the outer peripheral face of hollow lever bottom in uniform way with horizontal radiation, and said cutter hub is fixed on the lower blade;
Said expansion knife bar has 2-4, is positioned at the top of lower blade, and arranges that along the hollow lever radial symmetric one of which end is hinged on the key seat of hollow lever;
The piston rod end of said oil cylinder is provided with and connects fork;
One end of said connecting rod is hinged on and expands the knife bar middle part, and the other end passes the connecing of piston rod end that straight trough on the hollow stem body wall is hinged on oil cylinder and sticks;
Said blade has 2-8, is fixed on the outer peripheral face on hollow lever top with horizontal radiation in uniform way and is positioned at the lower blade top.
The utility model can be; Said cutter hub is weldingly fixed in the bottom of lower blade through hilt; Cutter hub is installed 2-4 on each lower blade; The cutter hub on the free end of lower blade, the position of the cutter hub on the position of the cutter hub on each lower blade and another lower blade is that arrangement is arranged in dislocation on direction of rotation.
The utility model can also be; Said expansion cutter hub is through expanding upper surface and the lower surface that hilt is fixed on bar; The expansion cutter hub on the bar free end, the position of the expansion cutter hub on the position of the expansion cutter hub on each bar and the adjacent bar is that dislocation is arranged and arranged on direction of rotation.
The utility model can also be that in the gap between blade, its outermost end tactical diameter is less than or equal to the free-ended tactical diameter of blade to said expansion knife bar when free state.
The utility model can also be that the free end of said lower blade and blade is the arc surface with the hollow lever concentric, is equipped with netted wearing layer on this arc surface.
The technique effect that the utility model expands end way-type drilling unit is that owing to adopt combined type to bore the pick structure, front end is an augers, can satisfy the brill pick function of general straight hole; When needs expand the end or ream operation, through the piston rod drivening rod of operating cyloinder, the expansion knife bar is opened, carry out ream operation, the stake that increases bearing peg is held and the cross-sectional area of pile body to reach, thereby effectively improves the bearing capacity of single pile.This way-type drilling unit can be used to construct various expanded bore piles and Bottle gourd pile, has distinguishing features such as easy construction, operation is simple and easy, duty cycle is short.
Description of drawings
Fig. 1 is the structural representation of the utility model way-type drilling unit;
Fig. 2 is that the middle A-A of Fig. 1 is to sectional view;
Fig. 3 be among Fig. 1 B to view.
Graphical sysmbol: the 1-hollow lever, the 2-cutter hub, the 3-lower blade, 4-expands knife bar, 5-connecting rod, 6-oil cylinder; The 7-blade, the 11-grouting channel, the 12-key seat, 13-straight trough, 14-are installed plug screw 21-cutter head; The 22-hilt, 31-is following, and 42-expands cutter hub, the 43-bar, 61-connects fork; 421-expands cutter head, and 422-expands hilt, the netted wearing layer of 101-, 431-upper surface, 432-lower surface.
The specific embodiment
Said embodiment is further described the utility model below in conjunction with accompanying drawing.
Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of way-type drilling unit comprises: hollow lever 1 comprises grouting channel 11, key seat 12, straight trough 13 and plug screw 14 is installed; A plurality of cutter hubs 2, each cutter hub 2 comprise a cutter head 21 and a hilt 22; Expand knife bar 4, comprise bar 43 and be installed in a plurality of expansion cutter hubs 42 on the bar 43, each expands cutter hub 42 and comprises that one expands a cutter head 421 and an expansion hilt 422; Lower blade 3; Connecting rod 5; Be installed in the oil cylinder 6 and blade 7 of hollow lever 1 inner chamber; It is characterized in that: said lower blade 3 has 2-4, is fixed on the outer peripheral face of hollow lever 1 bottom in uniform way with horizontal radiation, and said cutter hub 2 is fixed on the lower blade 3; Said expansion knife bar 4 has 2-4, is positioned at the top of lower blade 3, and arranges that along hollow lever 1 radial symmetric the one of which end is hinged on the key seat 12 of hollow lever 1; The piston rod end of said oil cylinder 6 is provided with and connects fork 61; One end of said connecting rod 5 is hinged on and expands knife bar 4 middle parts, and the other end passes the connecing on the fork 61 of piston rod end that straight trough 13 on hollow lever 1 wall is hinged on oil cylinder 6; Said blade 7 has 2-8, is fixed on the outer peripheral face on hollow lever 1 top with horizontal radiation in uniform way and is positioned at lower blade 3 tops; Said cutter hub 2 is weldingly fixed in the bottom 31 of lower blade 3 through hilt 22; Cutter hub 2 is installed 2-4 on each lower blade 3; The cutter hub 2 on the free end of lower blade 3, the position of the cutter hub 2 on each lower blade 3 and the position of the cutter hub 2 on another lower blade 3 are that arrangement is arranged in dislocation on direction of rotation; Said expansion cutter hub 42 is through expanding the upper surface 431 and lower surface 432 that hilt 422 is fixed on bar 43; The expansion cutter hub 42 on bar 43 free ends, the position of the expansion cutter hub 42 on the position of the expansion cutter hub 42 on each bar 43 and the adjacent bar 43 is that dislocation is arranged and arranged on direction of rotation; In the gap between blade 7, its outermost end tactical diameter is less than or equal to the free-ended tactical diameter of blade 7 to said expansion knife bar 4 when free state; The free end of said lower blade 3 and blade 7 is the arc surface with hollow lever 1 concentric, is equipped with netted wearing layer 101 on this arc surface.
When the utility model way-type drilling unit uses, at first connect with the auger drilling rod, the drilling rod inner oil tube is connected with oil cylinder turnover oil pipe simultaneously; Start auger and make the drilling rod rotation, the following cutter hub of lower blade bores pick downwards, reaches the drilling depth of designing requirement.When the needs reaming, operation auger hydraulic system makes oil cylinder work; Piston rod pushes away connecting rod through connecing under the fork, expands knife bar and outwards opens, and is positioned at the expansion cutter hub cutting soil layer of its upper and lower end face; Forming an expansion hole body, accomplish the construction operation that expands end bearing peg near the bottom reaming of stake hole; In addition,, can carry out reaming and form some expansion hole bodies, accomplish the construction operation of cucurbit bearing peg along the distance of stake hole length direction certain intervals according to design demand; After the auger drilling tool is accomplished reaming, operating cyloinder will expand the knife bar withdrawal, propose outside the hole with drilling rod then.
Claims (5)
1. way-type drilling unit comprises:
Hollow lever (1) comprises grouting channel (11), key seat (12), straight trough (13) and plug screw (14) is installed;
A plurality of cutter hubs (2), each cutter hub (2) comprise a cutter head (21) and a hilt (22);
Expand knife bar (4), comprise bar (43) and be installed in a plurality of expansion cutter hubs (42) on the bar (43), each expands cutter hub (42) and comprises that one expands a cutter head (421) and an expansion hilt (422);
Lower blade (3); Connecting rod (5); Be installed in the oil cylinder (6) and the blade (7) of hollow lever (1) inner chamber;
It is characterized in that:
Said lower blade (3) has 2-4, is fixed on the outer peripheral face of hollow lever (1) bottom in uniform way with horizontal radiation, and said cutter hub (2) is fixed on the lower blade (3);
Said expansion knife bar (4) has 2-4, is positioned at the top of lower blade (3), and arranges that along hollow lever (1) radial symmetric the one of which end is hinged on the key seat (12) of hollow lever (1);
The piston rod end of said oil cylinder (6) is provided with and connects fork (61);
One end of said connecting rod (5) is hinged on and expands knife bar (4) middle part, and the other end passes the connecing on the fork (61) of piston rod end that straight trough (13) on hollow lever (1) wall is hinged on oil cylinder (6);
Said blade (7) has 2-8, is fixed on the outer peripheral face on hollow lever (1) top with horizontal radiation in uniform way and is positioned at lower blade (3) top.
2. way-type drilling unit according to claim 1; It is characterized in that: said cutter hub (2) is weldingly fixed in the bottom (31) of lower blade (3) through hilt (22); Cutter hub (2) is gone up at each lower blade (3) and is installed 2-4; The cutter hub on the free end of lower blade (3) (2), the position of the cutter hub (2) on each lower blade (3) and the position of the cutter hub (2) on another lower blade (3) are that arrangement is arranged in dislocation on direction of rotation.
3. way-type drilling unit according to claim 1; It is characterized in that: said expansion cutter hub (42) is through expanding upper surface (431) and lower surface (432) that hilt (422) is fixed on bar (43); The expansion cutter hub (42) on bar (43) free end, the position of the expansion cutter hub (42) on the position of the expansion cutter hub (42) on each bar (43) and the adjacent bar (43) is that arrangement is arranged in dislocation on direction of rotation.
4. way-type drilling unit according to claim 1 is characterized in that: said expansion knife bar (4) is positioned at the gap between the blade (7) when free state, and its outermost end tactical diameter is less than or equal to the free-ended tactical diameter of blade (7).
5. way-type drilling unit according to claim 1 is characterized in that: the free end of said lower blade (3) and blade (7) is the arc surface with hollow lever (1) concentric, is equipped with netted wearing layer (101) on this arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203431237U CN202227989U (en) | 2011-09-14 | 2011-09-14 | Combined drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203431237U CN202227989U (en) | 2011-09-14 | 2011-09-14 | Combined drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227989U true CN202227989U (en) | 2012-05-23 |
Family
ID=46078577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203431237U Expired - Lifetime CN202227989U (en) | 2011-09-14 | 2011-09-14 | Combined drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227989U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN102996075A (en) * | 2011-09-14 | 2013-03-27 | 上海工程机械厂有限公司 | Drilling and reaming way-type drilling unit |
| CN104018782A (en) * | 2014-05-09 | 2014-09-03 | 中煤矿山建设集团有限责任公司 | Reverse reaming method and reverse reaming drilling tool |
| CN104832094A (en) * | 2015-05-08 | 2015-08-12 | 黑龙江中古建筑节能科技股份有限公司 | Long auger drilling and base-expanding complete device and reaming method |
| CN105909174A (en) * | 2016-06-28 | 2016-08-31 | 上海工程机械厂有限公司 | Stirring drilling tool |
| CN106812470A (en) * | 2017-03-09 | 2017-06-09 | 上海工程机械厂有限公司 | A kind of borehole-enlarging drilling tool |
-
2011
- 2011-09-14 CN CN2011203431237U patent/CN202227989U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996075A (en) * | 2011-09-14 | 2013-03-27 | 上海工程机械厂有限公司 | Drilling and reaming way-type drilling unit |
| CN102996075B (en) * | 2011-09-14 | 2016-04-20 | 上海工程机械厂有限公司 | A kind of boring expands way-type drilling unit |
| CN102777135A (en) * | 2012-08-02 | 2012-11-14 | 李英成 | Expanding drill and pile forming method |
| CN102777135B (en) * | 2012-08-02 | 2015-12-09 | 李英成 | Reamer and piling method |
| CN104018782A (en) * | 2014-05-09 | 2014-09-03 | 中煤矿山建设集团有限责任公司 | Reverse reaming method and reverse reaming drilling tool |
| CN104832094A (en) * | 2015-05-08 | 2015-08-12 | 黑龙江中古建筑节能科技股份有限公司 | Long auger drilling and base-expanding complete device and reaming method |
| CN104832094B (en) * | 2015-05-08 | 2017-12-01 | 黑龙江中古建筑节能科技股份有限公司 | Long auger base expanding and base expanding complexes and expanding method |
| CN105909174A (en) * | 2016-06-28 | 2016-08-31 | 上海工程机械厂有限公司 | Stirring drilling tool |
| CN105909174B (en) * | 2016-06-28 | 2018-08-03 | 上海工程机械厂有限公司 | A kind of stirring drill tool |
| CN106812470A (en) * | 2017-03-09 | 2017-06-09 | 上海工程机械厂有限公司 | A kind of borehole-enlarging drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20141008 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |