CN202731780U - Reamer - Google Patents
Reamer Download PDFInfo
- Publication number
- CN202731780U CN202731780U CN 201220380316 CN201220380316U CN202731780U CN 202731780 U CN202731780 U CN 202731780U CN 201220380316 CN201220380316 CN 201220380316 CN 201220380316 U CN201220380316 U CN 201220380316U CN 202731780 U CN202731780 U CN 202731780U
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- fin
- described fin
- scraper plate
- reamer
- drilling rod
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Abstract
The utility model provides a reamer, and solves the problem that at present, reinforced concrete cast-in-situ bored piles (usually end-support friction piles) are used for most buildings while the diameter and length increase method for the piles is adopted for design of most pile foundations to improve the friction between the piles and the soil. The reamer comprises a drill rod (4), wherein the top end of the drill rod is connected with a drill bit (1); the end of the drill rod close to the drill bit is connected with a vane (3); one end of the vane is connected with the upper end of a scraping plate (5) and the other end is connected with a vane base (2); the lower part of the vane is connected with the lower end of the scraping plate through a fixing plate (6); and the drill rod is connected with a group of helical blades (7). The reamer is used for pile-forming.
Description
Technical field:
The present invention relates to a kind of reamer.
Background technology:
At present, building adopts reinforced concrete bored pile mostly, generally mostly is end and holds friction pile.And the method that mostly adopts the diameter that adds timber pile and length in the Pile Foundations Design improves the frictional force between stake and soil.But the method does not take full advantage of pile strength, and not only cost is high, and the waste material.Therefore, adopt bottom expanding drill class drill bit to carry out reaming in pore forming process, the stake hole is suitably enlarged, increasing pile capacity is way commonly used in the building.
The machinery of existing reaming mainly contains two classes on the market, and a class drill bit lower end is provided with gunniting hole, gunniting hole utilizes high-pressure mortar spraying to make stake bottom Extended Spaces, but mostly descend the soil layer complex geologic conditions, especially run into rock, use whitewashing can't reach the purpose of reaming.An other class is that the apex point side utilizes cable wire to connect with the apex point increasing of drill bit.By cable wire is applied pulling force, utilize the lower end apex point to carry out reaming, still, because the complex geologic conditions of ground and cable wire are deposited extensibility at one end, the situation that apex point can't be opened often occurs, so that reaming can't realize, this brings very big inconvenience to construction.
Summary of the invention:
The purpose of this invention is to provide a kind of drill bit upper end fin is installed, the counter-rotating by drilling rod is opened fin, has realized expanding reamer and the piling method of stake purpose.
Above-mentioned purpose realizes by following technical scheme:
A kind of reamer, its composition comprises: drilling rod, described drilling rod top connects drill bit, described drilling rod connects fin near an end of drill bit, described fin one end connects the scraper plate upper end, described fin other end connecting wing bar, described fin connects described scraper plate lower end below by fixed head, and described drilling rod connects one group of helical blade.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is the 100-170 degree, and described fin has 1-2, and described scraper plate width is 10-20 centimetre.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 120 degree, and described fin has 1 or 2, and described scraper plate width is 15 centimetres.
Beneficial effect:
1. the present invention is simple in structure, and is practical, and reaming is convenient rapidly, can both realize fast and accurately reaming to various complex geological conditions conditions.
2. the present invention has increased the lifting surface area of bottom by reaming, takes full advantage of castinplace pile pile body intensity, improves the castinplace pile supporting capacity, and is easy to use, simple in structure, is easy to make, and improves efficiency of construction.
3. the optimum angle between fin of the present invention and scraper plate is 120 degree, and the effect of scraping is best, until reach reaming when height of designing requirement when stopping to reverse again forward, at this moment fin rotates and draws in rapidly with drilling rod, the state that recovery is closed, simultaneously downward concrete perfusion is realized reaming; Like this, formed stake bottom lifting surface area increases, and has increased the stratum support force, thereby has improved the perfusion bearing capacity of pile.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
The specific embodiment:
Embodiment 1:
A kind of reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is the 100-170 degree, and described fin has 1-2, and described scraper plate width is 10-20 centimetre.
Embodiment 2:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 120 degree, and described fin has 1 or 2, and described scraper plate width is 15 centimetres.
Embodiment 3:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 100 degree, and described fin has 1, and described scraper plate width is 10 centimetres.
Embodiment 4:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 170 degree, and described fin has 2, and described scraper plate width is 20 centimetres.
Embodiment 5:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 150 degree, and described fin has 1, and described scraper plate width is 15 centimetres.
Embodiment 6:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 130 degree, and described fin has 1, and described scraper plate width is 13 centimetres.
Embodiment 7:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 160 degree, and described fin has 2, and described scraper plate width is 16 centimetres.
Embodiment 8:
Embodiment 1 described reamer, its composition comprises: drilling rod 4, described drilling rod top connects drill bit 1, described drilling rod connects fin 3 near an end of drill bit, described fin one end connects scraper plate 5 upper ends, described fin other end connecting wing bar 2, described fin connects described scraper plate lower end below by fixed head 6, and described drilling rod connects one group of helical blade 7.
Described reamer, described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
Described reamer, described fixed head is equipped with in the angle of described fin and described scraper plate, and the angle of described fin and described scraper plate is 140 degree, and described fin has 1, and described scraper plate width is 14 centimetres.
Embodiment 9:
The piling method of the described reamer of above-described embodiment, as shown in Figure 1, a kind of reamer, comprise drill bit, drilling rod and helical blade, described drilling rod bottom is provided with the fin seat, described fin seat is connected with tab hinges, and fin can launch and draw in flexibly, and the described fin outside is semicircular arc, semicircular arc and the helical blade outer in the described fin outside adapt, make fin can not affect drill bit and be rotated down, be conducive to drill bit and be rotated down, described fin inboard is semicircle, semicircle and the drilling rod outer of described fin inboard adapt, better and drilling rod is drawn close, and described fin outer end is provided with scraper plate, can scraping.Described scraper plate is made by steel plate also can have various alloys to make, thereby improves the intensity of scraper plate, and described fin and scraper plate angle are provided with fixed head, make fin and scraper plate bearing capacity larger, and the angle between described fin and scraper plate is the 100-170 degree.Optimum angle between described fin and scraper plate is 120 degree.The effect of scraping is best, and described fin can be provided with 1 or 2 as required, with better raising support force.
Claims (4)
1. reamer, its composition comprises: drilling rod, it is characterized in that: described drilling rod top connects drill bit, described drilling rod connects fin near an end of drill bit, described fin one end connects the scraper plate upper end, described fin other end connecting wing bar, described fin connects described scraper plate lower end below by fixed head, and described drilling rod connects one group of helical blade.
2. reamer according to claim 1, it is characterized in that: described fin seat and described fin are hinged, the described fin outside is semicircular arc, described fin inboard is semicircular arc, the semicircular arc in the described fin outside is consistent with described helical blade outer shape, the semicircle of described fin inboard is consistent with described drilling-rod external wall radian, and described fin outer end is provided with scraper plate.
3. reamer according to claim 1 and 2, it is characterized in that: described fixed head is equipped with in the angle of described fin and described scraper plate, the angle of described fin and described scraper plate is the 100-170 degree, and described fin has 1-2, and described scraper plate width is 10-20 centimetre.
4. reamer according to claim 3, it is characterized in that: described fixed head is equipped with in the angle of described fin and described scraper plate, the angle of described fin and described scraper plate is 120 degree, and described fin has 1 or 2, and described scraper plate width is 15 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380316 CN202731780U (en) | 2012-08-02 | 2012-08-02 | Reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220380316 CN202731780U (en) | 2012-08-02 | 2012-08-02 | Reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731780U true CN202731780U (en) | 2013-02-13 |
Family
ID=47657492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220380316 Expired - Fee Related CN202731780U (en) | 2012-08-02 | 2012-08-02 | Reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731780U (en) |
Cited By (2)
| 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 |
| CN107059871A (en) * | 2017-03-08 | 2017-08-18 | 沈健龙 | The stake equipment of the expansion based on existing stake that a kind of municipal road and bridge engineering is used |
-
2012
- 2012-08-02 CN CN 201220380316 patent/CN202731780U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN102777135B (en) * | 2012-08-02 | 2015-12-09 | 李英成 | Reamer and piling method |
| CN107059871A (en) * | 2017-03-08 | 2017-08-18 | 沈健龙 | The stake equipment of the expansion based on existing stake that a kind of municipal road and bridge engineering is used |
| CN107059871B (en) * | 2017-03-08 | 2018-12-18 | 杭州曼京科技有限公司 | A kind of expansion stake equipment based on existing stake that municipal administration road and bridge engineering uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |