CN101220730B - Exterior lifting and pressing type ream bit for solum hole - Google Patents
Exterior lifting and pressing type ream bit for solum hole Download PDFInfo
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- CN101220730B CN101220730B CN2008100173946A CN200810017394A CN101220730B CN 101220730 B CN101220730 B CN 101220730B CN 2008100173946 A CN2008100173946 A CN 2008100173946A CN 200810017394 A CN200810017394 A CN 200810017394A CN 101220730 B CN101220730 B CN 101220730B
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- pull bar
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- drill
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Abstract
The invention relates to the technical field of boring tool in the industry of geotechnical engineering, in particular to an outer soil layer bore pressure-raised type broaching bit. This invention aims at overcoming the problems of the existing technology such as the complex structure of bit, high cost, high failure rate, etc. To overcome the problems of the existing technology, the technical proposal of this invention is that: an outer soil layer bore pressure-raised type broaching bit includes a power unit of a drilling machine, a drill stem and a bit body, wherein the drill stem is fixed in the power unit; the device additionally includes a drawbar which can movably pass through the power unit of the drilling machine, the drill stem and the bit body, and a swinging strut is arranged at the upper part of the drawbar; the bid body includes a bit body and a planar four bar linkage mechanism. Compared with the prior art, the invention has the advantages that: 1. The bit broaching mechanism is less and the structure is simple; 2. The accuracy requirement on the subassembly is not high, thus being easy for manufacturing; 3. the bit cost is low and the economic benefits is good; 4. The stretch and the shrinkage of the bit is easy and the failure rate is low.
Description
Technical field:
The present invention relates to geotechnical engineering industry boring tool technical field, be specifically related to a kind of exterior lifting and pressing type ream bit for solum hole.
Background technology:
In the geotechnical engineering industry, as ground stabilization under the building cushion cap etc., often run into the borehole engineering that need in the boring of small-bore, top, creep into out large-diameter borehole downwards, normal drill bit can't pore-forming, needs reaming bit just can finish the work.
The Counterboring apparatus that the present characteristics that have reaming bit are drill bits is in the hole, and the reaming function of drill bit realizes in the hole.
Because the Counterboring apparatus and the function of drill bit realize in the hole, the defective of at present existing reaming bit is: 1, drill bit expanding mechanism complexity, and production process is many, to member required precision height; 2, the cost of drill bit making and use is higher, deficiency in economic performance; 3, drill bit breaks down in the expansion contraction process easily, and fault rate is higher.
Summary of the invention:
The present invention will provide a kind of exterior lifting and pressing type ream bit for solum hole, to overcome the problems such as drill bit mechanism complexity, cost height and fault rate height that prior art exists.
For overcoming the problem that prior art exists, technical scheme of the present invention is: a kind of exterior lifting and pressing type ream bit for solum hole, comprise drill power head 4, drilling rod 11 and bit body, drilling rod 11 is fixed in the drilling rod unit head 4, its special character is: also comprise pull bar 1, pull bar 1 runs through in drill power head 4, drilling rod 11 and the bit body movably, pull bar 1 top is provided with runing rest, this runing rest comprises pressure bearing 3 and the pull bar holder 2 that is arranged on the pressure bearing 3, pull bar 1 wears and is fixed in the pull bar holder 2, places the center of pressure bearing 3; Described bit body comprises drill body 6 and lanar four rod mechanism 8, the bottom of pull bar 1 is arranged in the drill body 6, its lower end is connected with slide plate 7, be provided with diffusion groove 5 in the slide plate 7, collar extension place, drill body 6 bottom is relatively set with a pair of expansion notch 9, the plane of expansion notch 9 controls is provided with lanar four rod mechanism 8, lanar four rod mechanism 8 is made of a pair of expansion fin and a pair of reaming fin, pass horizontally disposed lower push-rod 10 in the upper contact of expansion fin in this lanar four rod mechanism 8, this lower push-rod 10 passes the diffusion groove 5 in the slide plate 7 simultaneously and is fixedly set on the drill body 6, and the following contact of reaming fin connects with the lower extreme point of slide plate 7 in the described lanar four rod mechanism 8.
Above-mentioned lower push-rod 10 is provided with perpendicular to the plane of slide plate 7.
Above-mentioned pull bar holder 2 is the T-shape sleeve pipe, and the vertical tube wall is provided with the jackscrew of steady brace 1.
Two ends of transverse tube also are provided with the jackscrew of steady brace 1 in the above-mentioned pull bar holder 2.
The jackscrew place is provided with internal thread in the above-mentioned pull bar holder 2, pull bar 1 can be fixed in the pull bar holder 2 by the degree of tightness jackscrew.
Compared with prior art, advantage of the present invention is:
1, the drill bit expanding mechanism is few, and form is succinct;
2, the parts required precision is not high, easily processing and fabricating;
3, the drill bit cost is low, and is good in economic efficiency;
4, it is simple that drill bit opens contraction, and fault rate is low.
Description of drawings:
Fig. 1 is the invention process structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the schematic diagram of drill body of the present invention;
Fig. 4 is that the B of Fig. 3 is to view;
Fig. 5 is user mode figure of the present invention.
Description of reference numerals is as follows:
The 1-pull bar, 2-pull bar holder, the 3-pressure bearing, the 4-drill power head, 5-diffusion groove, the 6-drill body, the 7-slide plate, the 8-lanar four rod mechanism, 9-expands notch, 10-lower push-rod, 11-drilling rod, 12-through hole.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is described in detail.
Embodiment 1: referring to Fig. 1～Fig. 4, a kind of exterior lifting and pressing type ream bit for solum hole comprises drill power head 4, drilling rod 11, bit body and pull bar 1.Said drill power head 4 connects with drilling rod 11, and drilling rod 11 and drill body 6 connect, and pull bar 1 runs through in drilling rod 11 and the bit body movably.The top of pull bar 1 is provided with runing rest, and this runing rest comprises pressure bearing 3 and the pull bar holder 2 that is arranged on the pressure bearing 3, and pull bar 1 wears the center of being fixed in the pull bar holder 2 and being positioned at pressure bearing 3.Said pull bar holder 2 is the T-shape sleeve pipe, is provided with the jackscrew of steady brace 1 on the vertical tube wall with two ends of transverse tube.Pressure bearing 3 in the runing rest is fixedly set on the outside support.
Said bit body comprises drill body 6 and lanar four rod mechanism 8, the lower end of pull bar 1 is connected with slide plate 7, it is arranged in the drill body 6, be provided with the diffusion groove 5 of strip in the slide plate 7, be symmetrically arranged with a pair of expansion notch 9 on the collar extension of drill body 6 bottoms, the perpendicular that a pair of expansion notch 9 is controlled is provided with lanar four rod mechanism 8, this lanar four rod mechanism 8 constitutes a zither shape by a pair of expansion fin and a pair of reaming fin, upper flap is the expansion fin, lower flank is the reaming fin, pass horizontally disposed lower push-rod 10 in the upper contact of expansion fin in this lanar four rod mechanism 8, this lower push-rod 10 passes the diffusion groove 5 in the slide plate 7 simultaneously, lower push-rod 10 is fixed in the through hole 12 on the drill body 6 perpendicular to expansion notch 9 plane of controlling.
Embodiment 2: referring to Fig. 1～Fig. 4, the present invention can implement by original drilling equipment.
The expansion fin of lanar four rod mechanism 8 is placed in the expansion notch 9 on the drill body 6, its upper contact and slide plate 7 are connected on the lower push-rod 10, lower push-rod 10 passes the diffusion groove 5 of upper contact and slide plate 7 during connection, wears perpendicular to expansion notch 9 plane of controlling and is fixed on the drill body 6; Connect expansion fin and reaming fin, the following contact of reaming fin is connected on the lower extreme point of slide plate 7.Connect slide plate 7 and pull bar 1, drill body 6 is connected the bottom of drilling rod 11, pull bar 1 passes from the drilling rod upper end hole from the center of drilling rod 11 and passes.
The upper end of described drilling rod 11 is connected on the drill power head 4, pull bar 1 in the drilling rod 11 passes from the drill power head 4 that unloads the boiling water pigtail, pressure bearing 3 is fixed by outside support and ground, and the center that pull bar 1 is upward through pressure bearing 3 is fixed in the pull bar holder 2.
Dismantle the water pigtail on the drill power head 4, will be in this device and the drill power head 4 that close up under the state and connect, put at the bottom of the hole of soil layer top path boring, runing rest, outside support and pull bar 1 installation in position.
Referring to Fig. 5, operating principle of the present invention is: rotate synchronously when moving down when drill power head 4 drives drilling rods 11 and drill body 6, drilling rod 11 and drill body 6 move down, and the pull bar 1 in it can not move downward owing to hanging to be fixed on pressure bearing 3 and the holder 2.In the rotation process, drill body 6 is fixed in following push piece 10 in it and is rotated down mobilely thereupon when moving down, make the upper contact in the lanar four rod mechanism 8 that connects with it together rotate and be subjected to displacement downwards.Because the lower extreme point with slide plate 2 of 8 times contacts of lanar four rod mechanism links to each other, slide plate 2 is connected with pull bar 1 and hangs on the pressure bearing 3, so 8 times contacts of lanar four rod mechanism can only horizontally rotate and can not move downward.Like this, move downward in the process at upper contact, the expansion fin is limited by in the expansion notch 9 on the drill body 6 with drill body 6 rotations and when radially opening gradually, traction reaming fin radially opens in rotation process on one side, the soil body of the original boring of one side rotary cutting both sides, realizes the reaming function.Rotate in the process at the fin upper contact, the pull bar holder 2 on pull bar 1 top is owing to being fixed on the rotary-tray pressure bearing 3 and can rotating synchronously with upper contact, so pull bar 1 twisted phenomena can not occur in rotation.After the drill bit expansion is finished, unclamp the jackscrew of the steady brace 1 that is provided with on the T jacket tube, the runing rest and the outside support on pull bar 1 top are removed, move up drill power head 4 and drilling rod of adjunction inserted pull bar 1 in the drilling rod, the water that recovers on the drill power head is distinguished, has just begun creeping in large-diameter borehole afterwards.When bit drills entered predetermined absolute altitude drilling tool lifting, open reaming fin was carried on drilling rod 11, rely on gravity to regain naturally in rotation and the whipping process, at last can proposition from the top path is holed.
Because the fin of the lanar four rod mechanism 8 of zither shape Unscrew gradually in the cutting soil body is so drilling rod 11 need not slide plate 7 and pull bar 1 are applied excessive pressure by the lower push-rod in the drill body 6 10.The modulus of elasticity of getting mild steel is 200GPa, and the sectional area of getting slide plate 7 and pull bar 1 is 0.5cm
2, the length of slide plate 7 and pull bar 1 is 1m, and the elongation of slide plate 7 and pull bar 1 is about 0.1mm under the pulling force of 1kN as can be known, and slide plate 7 and the pull bar 1 elongation strain amount in the tension process can be ignored.
Claims (4)
1. exterior lifting and pressing type ream bit for solum hole, comprise drill power head (4), drilling rod (11) and bit body, drilling rod (11) is fixed in the drill power head (4), it is characterized in that: also comprise pull bar (1), pull bar (1) runs through in drill power head (4), drilling rod (11) and the bit body movably, pull bar (1) top is provided with runing rest, this runing rest comprises pressure bearing (3) and is arranged on pull bar holder (2) on the pressure bearing (3), pull bar (1) wears and is fixed in the pull bar holder (2), places the center of pressure bearing (3); Described bit body comprises drill body (6) and lanar four rod mechanism (8), the bottom of pull bar (1) is arranged in the drill body (6), its lower end is connected with slide plate (7), be provided with diffusion groove (5) in the slide plate (7), be symmetrically arranged with a pair of expansion notch (9) on the collar extension of drill body (6) bottom, the plane of expansion notch (9) control is provided with lanar four rod mechanism (8), lanar four rod mechanism (8) constitutes a zither shape by a pair of expansion fin and a pair of reaming fin, and upper flap is the expansion fin, lower flank is the reaming fin, pass horizontally disposed lower push-rod (10) in the upper contact of expansion fin in this lanar four rod mechanism (8), this lower push-rod (10) passes the diffusion groove (5) in the slide plate (7) simultaneously and is fixedly set on the drill body (6), and the following contact of reaming fin connects with the lower extreme point of slide plate (7) in the described lanar four rod mechanism (8).
2. exterior lifting and pressing type ream bit for solum hole as claimed in claim 1 is characterized in that: described lower push-rod (10) is provided with perpendicular to the plane of slide plate (7).
3. exterior lifting and pressing type ream bit for solum hole as claimed in claim 1 or 2 is characterized in that: described pull bar holder (2) is the T-shape sleeve pipe, and the vertical tube wall is provided with the jackscrew of steady brace (1), and the jackscrew place is provided with internal thread.
4. exterior lifting and pressing type ream bit for solum hole as claimed in claim 3 is characterized in that: two ends of transverse tube are provided with the jackscrew of steady brace (1) in the described pull bar holder (2), and the jackscrew place is provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100173946A CN101220730B (en) | 2008-01-24 | 2008-01-24 | Exterior lifting and pressing type ream bit for solum hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100173946A CN101220730B (en) | 2008-01-24 | 2008-01-24 | Exterior lifting and pressing type ream bit for solum hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101220730A CN101220730A (en) | 2008-07-16 |
| CN101220730B true CN101220730B (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100173946A Active CN101220730B (en) | 2008-01-24 | 2008-01-24 | Exterior lifting and pressing type ream bit for solum hole |
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| CN (1) | CN101220730B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603600B (en) * | 2013-11-22 | 2015-11-25 | 山东大学 | For the controlled excavating device of three-dimensional localization and the method for the simulation of model testing solution cavity |
| CN105696945B (en) * | 2016-03-13 | 2018-05-25 | 青岛蓝天创先科技服务有限公司 | The punching drill bit of drilling machine of bore diameter can be expanded |
| CN112166959B (en) * | 2020-09-04 | 2022-09-30 | 池州市德丰菌业有限责任公司 | Fungus culture rod drilling machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232981Y (en) * | 1995-12-20 | 1996-08-14 | 李宪奎 | Anchoring-bolt broaching equipment |
| CN2323126Y (en) * | 1998-02-17 | 1999-06-09 | 杜晓瑞 | Strong hole enlarger |
| CN1247920A (en) * | 1999-05-21 | 2000-03-22 | 肖纹 | Expandable nole drilling mechanism for deposited reinforced concrete pile |
| CN2447389Y (en) * | 2000-10-30 | 2001-09-12 | 瑞安市昌盛建筑工程机械厂 | Broaching device of pile driver |
| CN2477707Y (en) * | 2001-05-11 | 2002-02-20 | 河北省建筑勘察研究院 | Base enlarging appts. for club-footed pile for fundation construction |
| GB2430949A (en) * | 2005-10-10 | 2007-04-11 | Balfour Beatty Plc | Under-reamer with pivoting and sliding arms |
| CN200999590Y (en) * | 2006-11-07 | 2008-01-02 | 李景维 | Belt cable pore-creating drill device capable of taking-out anchorage cable |
| CN201152148Y (en) * | 2008-01-24 | 2008-11-19 | 煤炭科学研究总院西安研究院 | Soil horizon hole external lifting and pressing type reamer bit |
-
2008
- 2008-01-24 CN CN2008100173946A patent/CN101220730B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232981Y (en) * | 1995-12-20 | 1996-08-14 | 李宪奎 | Anchoring-bolt broaching equipment |
| CN2323126Y (en) * | 1998-02-17 | 1999-06-09 | 杜晓瑞 | Strong hole enlarger |
| CN1247920A (en) * | 1999-05-21 | 2000-03-22 | 肖纹 | Expandable nole drilling mechanism for deposited reinforced concrete pile |
| CN2447389Y (en) * | 2000-10-30 | 2001-09-12 | 瑞安市昌盛建筑工程机械厂 | Broaching device of pile driver |
| CN2477707Y (en) * | 2001-05-11 | 2002-02-20 | 河北省建筑勘察研究院 | Base enlarging appts. for club-footed pile for fundation construction |
| GB2430949A (en) * | 2005-10-10 | 2007-04-11 | Balfour Beatty Plc | Under-reamer with pivoting and sliding arms |
| CN200999590Y (en) * | 2006-11-07 | 2008-01-02 | 李景维 | Belt cable pore-creating drill device capable of taking-out anchorage cable |
| CN201152148Y (en) * | 2008-01-24 | 2008-11-19 | 煤炭科学研究总院西安研究院 | Soil horizon hole external lifting and pressing type reamer bit |
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| Publication number | Publication date |
|---|---|
| CN101220730A (en) | 2008-07-16 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: XI AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Free format text: FORMER NAME: SIAN BRANCH OF CHINA COAL RESEARCH INSTITUTE |
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| CP03 | Change of name, title or address |
Address after: 710075 Xi'an high tech Industrial Development Zone, Shaanxi, Jin Jin Road, No. 82 Patentee after: Xi'an Research Institute, CCTEG Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Sian Branch Of China Coal Research Institute |