CN101105116A - Reamer bit structure - Google Patents
Reamer bit structure Download PDFInfo
- Publication number
- CN101105116A CN101105116A CNA2007100260009A CN200710026000A CN101105116A CN 101105116 A CN101105116 A CN 101105116A CN A2007100260009 A CNA2007100260009 A CN A2007100260009A CN 200710026000 A CN200710026000 A CN 200710026000A CN 101105116 A CN101105116 A CN 101105116A
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- hole
- drilling rod
- rod
- processed
- screw thread
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Abstract
A hole-dilating drill structure comprises a drilling rod, a cutter blade, and an ejector rod, wherein a spline groove is processed at the tail end of the drilling rod and connecting with a driving device. The invention is characterized in that opening straight grooves are respectively opened at two sides of the head of the drilling rod, the cutter blade is arranged in the opening straight groove through a pin; a hole is drilled at the head of the drilling rod, the inner surface of the hole has screw thread, the tail end of the ejector rod is provided with screw thread matting with the screw thread in the hole of the drilling rod and processed with a step, the middle of the ejector rod has conical shape, and the top of the ejector rod is provided with a stand bar; and a small bolt hole is processed in the middle position of the hole on the drilling rod and used for arranging a positioning bolt. The hole-dilating drill structure provided in the invention has the advantages of simple structure, convenient operation and usage, and wide application range. The ejector rod type opening device can well assure the structural strength of the drill, and the hole-dilating position can be determined as required.
Description
Technical field
The present invention relates to a kind of building machinery, specifically relate to a kind of reaming bit that is used for beating castinplace pile, belong to the building machinery technical field.
Background technology
Present high building all will be beaten castinplace pile, to bear the weight of floor, is unlikely to after after a while, and the phenomenon of sinking appears in the floor ground, guarantees the safety of building; Simultaneously, can also strengthen the shearing resistance tension effect of building, the destruction of building also be had certain effect reducing possible earthquake.
Current, in the building operations, after the probing to priming concrete pile hole, all to carry out reaming in the bottom in stake hole, make a hole form down the big little shape that, enlarge the diameter of dress control bottom, increase the contact area of castinplace pile bottom surface and ground, improve the supporting capacity of castinplace pile.In construction, reaming work is general to be adopted artificial reaming or utilizes reaming bit to carry out reaming at present.Use artificial reaming, efficiency of construction is low, and labour intensity is big, and is of poor quality, and what is more important constructor's personal safety can not get guaranteeing.Therefore, mechanical means replacement manually carrying out ream operation is adopted in the job site more now.Mostly present reaming bit is to be processed into the drilling rod center hollow if adopting, mechanical driving device or other transmission control device are installed therein, after drill bit being reached a bottom, hole, utilize mechanical driving device or other transmission control device to drive the linkage of bottom drill bit, blade is progressively opened, carried out ream operation.Though this reamer bit structure can carry out ream operation, because drilling rod is processed to hollow, reduced the structural strength of drilling rod, the drill rod breaking accident takes place easily.In addition, because the drill bit employing is that linkage is opened blade, be subjected to the structural limitations of linkage, its intensity can not guarantee well that blade can't be opened after linkage breaks down.
Summary of the invention
Be to solve the deficiencies in the prior art, the object of the present invention is to provide a kind of simple in structure, easy for operation, reamer bit structure that intensity is higher.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of reamer bit structure, form by drilling rod, blade, push rod, the afterbody of described drilling rod is processed with the spline that is connected with drive unit, it is characterized in that the head dual-side of described drilling rod has the opening straight trough, and described blade is installed in the opening straight trough by wearing pin; Head at described drilling rod is drilled with the hole, and the inner surface in hole is a screw thread, and the push rod afterbody has the threaded engagement in the hole of screw thread and drilling rod, and is processed with step, and the middle part of push rod is a taper, and support bar is arranged at the top; The centre position in hole is processed with and is used for the little screw that dog screw is installed on drilling rod.
Aforesaid reamer bit structure is characterized in that the described pin of wearing, and can be bolt nut structure.
Aforesaid reamer bit structure, the length that it is characterized in that described support bar is according to deciding according to the position needs of institute's reaming.
Aforesaid reamer bit structure is characterized in that the position of the step on the described push rod is decided according to the big or small needs of institute's reaming.
The invention has the beneficial effects as follows: reamer bit structure of the present invention, it is simple in structure, and is easy for operation, and the post rod type device for opening of employing can guarantee the structural strength of drill bit well, and can determine the reaming position as required, and is applied widely.
Description of drawings
Fig. 1 is the general illustration of reamer bit structure of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is done concrete being described below:
Fig. 1 is the general illustration of reamer bit structure of the present invention, as shown in the figure, reamer bit structure of the present invention, by drilling rod 2, dog screw 4, blade 5, push rod 6, wear pin 7 and support bar 8 is formed, process by spline 1 at the afterbody of drilling rod 2, spline 1 is used for drilling rod 2 is connected with driving mechanism, rotates to drive drilling rod 2.Dual-side at the head of drilling rod 2 has the opening straight trough, in the opening straight trough of both sides blade 5 is installed respectively, and blade 5 is fixing by wearing pin 7.Wearing pin 7 simultaneously also can be bolt, nut structure, is flexible connection with blade 5.Afterbody at drilling rod 2 is drilled with hole 3, and the inner surface in hole 3 is processed into screw thread, and push rod 6 tops are that step-like, thinner part external surface is a screw thread, and the centre is a taper, also has support bar 8 at the top of push rod 6.Push rod 6 is by in the hole 3 of screw thread precession drilling rod 2.The centre position in hole 3 is processed with little screw on drilling rod 2, utilizes the head of dog screw 4 to put in hole 3, limits the position of push rod 6.
In use, on-the-spot gets bottom outlet with the impact electric hammer earlier, the spline 1 with drilling rod 2 afterbodys of reamer bit structure of the present invention is installed on the driving mechanism then, drilling rod is inserted in the bottom outlet again.In advance with push rod 6 part precession holes 3, dog screw 4 is installed on the drilling rod.Drive mechanism drilling rod 2 rotations during work, utilize the effect of inertia force to make push rod 6 precession hole 3 constantly, push up until the step on the push rod 6 (direction of rotation of the matching thread in push rod 6 and hole 3 is opposite with the direction of rotation of drilling rod 2) till the head of dog screw 4.Like this, because the effect of push rod 6, the blade 5 of both sides just outwards launches, and the bottom of bottom outlet can be enlarged.
Change the push rod of different steps position, can expand the macropore that different-diameter.But in use, the step position also there is certain requirement.Because its position is too high or too low, may cause the damage of blade 5.Too high meeting causes the opening angle of blade 5 too small, can surpass the impact force that blade can bear because of the increase of reaming speed and reaming amount like this, easily causes the damage of blade 5; The position is crossed to hang down and will be caused blade 5 opening angles excessive, can cause the unit pressure of blade to reduce, thereby reduce operating efficiency, even might can't work.
The effect of support bar 8 is the positions that can determine the hole expanded as required, and the length of support bar 8 can determine as required.
The castinplace pile bottom that pour into a mould in the hole of using the present invention to process is bigger, can play good stabilization.
The foregoing description does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (4)
1. reamer bit structure, form by drilling rod, blade, push rod, the afterbody of described drilling rod is processed with the spline that is connected with drive unit, it is characterized in that the head dual-side of described drilling rod has the opening straight trough, and described blade is installed in the opening straight trough by wearing pin; Head at described drilling rod is drilled with the hole, and the inner surface in hole is a screw thread, and the push rod afterbody has the threaded engagement in the hole of screw thread and drilling rod, and is processed with step, and the middle part of push rod is a taper, and support bar is arranged at the top; The centre position in hole is processed with and is used for the little screw that dog screw is installed on drilling rod.
2. reamer bit structure according to claim 1 is characterized in that the described pin of wearing, and can be bolt nut structure.
3. reamer bit structure according to claim 1 is characterized in that the length of described support bar is decided according to the actual requirements.
4. reamer bit structure according to claim 1 is characterized in that the position of the step on the described push rod is decided according to the big or small needs of institute's reaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100260009A CN101105116A (en) | 2007-08-21 | 2007-08-21 | Reamer bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100260009A CN101105116A (en) | 2007-08-21 | 2007-08-21 | Reamer bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101105116A true CN101105116A (en) | 2008-01-16 |
Family
ID=38999175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100260009A Pending CN101105116A (en) | 2007-08-21 | 2007-08-21 | Reamer bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101105116A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133773A (en) * | 2010-12-10 | 2011-07-27 | 上海康驰建筑技术有限公司 | Reaming method and drilling bit matched therewith |
| CN107537837A (en) * | 2017-09-27 | 2018-01-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of oil-contained drilling cuttings extraction kettle barrel cleaning tool and application method |
| CN109366750A (en) * | 2018-10-31 | 2019-02-22 | 重庆市瑞轩豪邦新型建材有限公司 | A kind of concrete-processing |
| CN110424897A (en) * | 2019-08-27 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | Bottom expanding drill afterwards |
| CN110883508A (en) * | 2019-11-25 | 2020-03-17 | 贵州泓新卫浴科技有限公司 | Riveting-free hardware hanger machining process |
| CN112955083A (en) * | 2018-09-16 | 2021-06-11 | Ignite骨科有限责任公司 | Bone reamer and method of use thereof |
-
2007
- 2007-08-21 CN CNA2007100260009A patent/CN101105116A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133773A (en) * | 2010-12-10 | 2011-07-27 | 上海康驰建筑技术有限公司 | Reaming method and drilling bit matched therewith |
| CN107537837A (en) * | 2017-09-27 | 2018-01-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of oil-contained drilling cuttings extraction kettle barrel cleaning tool and application method |
| CN112955083A (en) * | 2018-09-16 | 2021-06-11 | Ignite骨科有限责任公司 | Bone reamer and method of use thereof |
| CN109366750A (en) * | 2018-10-31 | 2019-02-22 | 重庆市瑞轩豪邦新型建材有限公司 | A kind of concrete-processing |
| CN109366750B (en) * | 2018-10-31 | 2021-01-05 | 重庆市瑞轩豪邦新型建材有限公司 | Concrete processing device |
| CN110424897A (en) * | 2019-08-27 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | Bottom expanding drill afterwards |
| CN110424897B (en) * | 2019-08-27 | 2024-06-07 | 中铁第四勘察设计院集团有限公司 | Post-reaming bit |
| CN110883508A (en) * | 2019-11-25 | 2020-03-17 | 贵州泓新卫浴科技有限公司 | Riveting-free hardware hanger machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080116 |