CN202659150U - Spiral base-expanding integral drill - Google Patents
Spiral base-expanding integral drill Download PDFInfo
- Publication number
- CN202659150U CN202659150U CN 201220219058 CN201220219058U CN202659150U CN 202659150 U CN202659150 U CN 202659150U CN 201220219058 CN201220219058 CN 201220219058 CN 201220219058 U CN201220219058 U CN 201220219058U CN 202659150 U CN202659150 U CN 202659150U
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- arm
- expanding
- outer sleeve
- inner sleeve
- base
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Abstract
The utility model discloses a spiral base-expanding integral drill, which comprises a drill pipe, wherein the bottom of the drill pipe is fixedly connected with an outer sleeve; the inside of the outer sleeve is provided with an inner sleeve in a sliding fit manner; the outer part of the outer sleeve is fixedly provided with an arm protection plate; the bottom end of the inner sleeve is fixedly provided with a soil containing disk; the arm protection plate comprises a left base-expanding arm and a right base-expanding arm, wherein the upper end of the left base-expanding arm and the upper end of the right base-expanding arm are respectively hinged to two sides of the arm guard plate; and the lower end of the left base-expanding arm and the soil containing disk as well as the lower end of the right base-expanding arm and the soil containing disk are respectively hinged by a connecting rod. The spiral base-expanding integral drill has the advantages of simple and reliable structure and convenience in operation. During the base-expanding operation, soil is collected by the soil containing disk. When a drill is pulled out from a pile, the soil can be taken out together, time and labor are saved, and the operation efficiency of the drill is greatly improved. In addition, the vertical compression-resistant performance of the pile can be improved, and the spiral base-expanding integral drill has a larger popularization and application space in the building field.
Description
Technical field
The utility model relates to the bottom expanding drill field, and specifically a kind of spiral expands end integral type drill bit.
Background technology
Bottom expanding drill is the drill bit of construction expanded bore pile in rotary drilling.Generally form by expanding the end wing, pressure frame, connecting rod, base and bearing pin.Expanding the end wing has both wings, three wings or four wings, and the expansion end wing is opened gradually, and the cutting hole wall expands the end.
But, the most complex structure of existing bottom expanding drill, relatively heavier, cost compare is high.When expanding end operation, can below the earth's surface, form a deep hole, be also referred to as stake, and the earth that expands end formation can be deposited in the stake, drill bit need to be proposed, again the earth in the stake be collected on the earth's surface by artificial or plant equipment, so just have influence on the operating efficiency of drill bit.
The utility model content
The purpose of this utility model provides a kind of simple in structure, easy to operate spiral and expands end integral type drill bit, when expanding end operation, by soil holding disk earth is collected, and when drill bit proposed in the stake, earth can be taken out of in the lump, and was time saving and energy saving.
The technical solution of the utility model is as follows:
A kind of spiral expands end integral type drill bit, include drilling rod, has helical blade on the outer wall of described drilling rod, it is characterized in that: the bottom of described drilling rod is fixedly connected with outer sleeve, the upper end closed of described outer sleeve, the lower end of outer sleeve is uncovered, outer sleeve is interior by the inner sleeve that has been slidingly installed, stretch out from the lower end of outer sleeve is uncovered the bottom of described inner sleeve, and the upper end of inner sleeve is uncovered, and the lower end closed of inner sleeve is provided with spring in the inner sleeve, one end of described spring leans at the upper end of outer sleeve inner bottom surface, and the other end of spring top is pressed in the lower end inner bottom surface of inner sleeve; The external stability of described outer sleeve has the armlet plate, the bottom of described inner sleeve is fixed with soil holding disk, include arm at the bottom of the left and right expansion, the upper end of arm is hinged on respectively the both sides of armlet plate at the bottom of the described left and right expansion, pass through respectively rod hinge connection at the bottom of the left and right expansion between the lower end of arm and the soil holding disk, be fixed with respectively a plurality of alloy cutter heads at the bottom of the left and right expansion on the arm.
Described spiral expands end integral type drill bit, and it is characterized in that: there is mount pad the upper end of described drilling rod.
Described spiral expands end integral type drill bit, and it is characterized in that: the bottom of described soil holding disk is fixedly welded with sharp type piece.
The beneficial effects of the utility model:
The utility model is simple in structure, reliable, and is easy to operate, when expanding end operation, by soil holding disk earth collected, and when drill bit proposed in the stake, earth can be taken out of in the lump, and was time saving and energy saving, greatly improved the operating efficiency of drill bit; In addition, the utility model can improve the vertical compression performance of stake, at building field larger promotion and application space is arranged.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1, a kind of spiral expands end integral type drill bit, include drilling rod 1, has helical blade 2 on the outer wall of drilling rod 1, the bottom of drilling rod 1 is fixedly connected with outer sleeve 3, the upper end closed of outer sleeve 3, the lower end of outer sleeve 3 is uncovered, by the inner sleeve 4 that has been slidingly installed, stretch out from the lower end of outer sleeve 3 is uncovered the bottom of inner sleeve 4, and the upper end of inner sleeve 4 is uncovered in the outer sleeve 3, the lower end closed of inner sleeve 4, be provided with spring 5 in the inner sleeve 4, an end of spring 5 leans at the upper end of outer sleeve 3 inner bottom surface, and the other end of spring 5 top is pressed in the lower end inner bottom surface of inner sleeve 4; The external stability of outer sleeve 3 is welded with armlet plate 6, the bottom of inner sleeve 4 is fixedly welded with soil holding disk 7, include arm 8,9 at the bottom of the left and right expansion, arm 8 at the bottom of the left and right expansion, 9 upper end are hinged on respectively the both sides of armlet plate 6, hinged by connecting rod 10 respectively between arm 8 at the bottom of the left and right expansion, 9 lower end and the soil holding disk 7, be fixed with respectively a plurality of alloy cutter heads 11 at the bottom of the left and right expansion on the arm 8,9.
There is mount pad 12 upper end of drilling rod; The bottom of soil holding disk is fixedly welded with sharp type piece 13, plays the effect of stablizing whole drill bit and the effect of drill guide stake.
At first get out a hole on the earth's surface by common augers, then by mount pad 12 that whole drill bit is rack-mount, the upper end of the motor on the support and drilling rod 1 is in transmission connection, driven by motor drilling rod 1, in, outer sleeve 5,4, armlet plate 6, left, arm 8 at the bottom of the right expansion, 9 and soil holding disk 7 rotate together, under the drive of the hoisting mechanism on the support, drilling rod 1 moves down along the inwall of hole gradually, when sharp type piece 13 arrives the inner bottom surface of hole, drilling rod 1 is slightly pressurizeed, this moment, inner sleeve 4 moved on outer sleeve 3 inwalls, spring 5 compressions, left, arm 8 at the bottom of the right expansion, 9 open in hole gradually, left, arm 8 at the bottom of the right expansion, a plurality of alloy cutter heads 11 on 9 are rotating and are expanding end operation, and the earth that expands end operation generation can fall in the soil holding disk 7 of inner sleeve 4 bottoms automatically; After expansion end operation is finished, hoisting mechanism on the support is mentioned drilling rod 1 gradually, under Action of Gravity Field, inner sleeve 4 moves down along outer sleeve 3 inwalls, and spring 5 is upheld, and arm 8,9 shrinks in hole gradually at the bottom of the left and right expansion, finally along with drilling rod 1 proposes from hole, and the earth that expands end operation generation is taken out of in the lump with soil holding disk 7, and so far, expansion end operation is complete.
Claims (3)
1. a spiral expands end integral type drill bit, include drilling rod, has helical blade on the outer wall of described drilling rod, it is characterized in that: the bottom of described drilling rod is fixedly connected with outer sleeve, the upper end closed of described outer sleeve, the lower end of outer sleeve is uncovered, outer sleeve is interior by the inner sleeve that has been slidingly installed, stretch out from the lower end of outer sleeve is uncovered the bottom of described inner sleeve, and the upper end of inner sleeve is uncovered, and the lower end closed of inner sleeve is provided with spring in the inner sleeve, one end of described spring leans at the upper end of outer sleeve inner bottom surface, and the other end of spring top is pressed in the lower end inner bottom surface of inner sleeve; The external stability of described outer sleeve has the armlet plate, the bottom of described inner sleeve is fixed with soil holding disk, include arm at the bottom of the left and right expansion, the upper end of arm is hinged on respectively the both sides of armlet plate at the bottom of the described left and right expansion, pass through respectively rod hinge connection at the bottom of the left and right expansion between the lower end of arm and the soil holding disk, be fixed with respectively a plurality of alloy cutter heads at the bottom of the left and right expansion on the arm.
2. spiral according to claim 1 expands end integral type drill bit, and it is characterized in that: there is mount pad the upper end of described drilling rod.
3. spiral according to claim 1 expands end integral type drill bit, and it is characterized in that: the bottom of described soil holding disk is fixedly welded with sharp type piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219058 CN202659150U (en) | 2012-05-16 | 2012-05-16 | Spiral base-expanding integral drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219058 CN202659150U (en) | 2012-05-16 | 2012-05-16 | Spiral base-expanding integral drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659150U true CN202659150U (en) | 2013-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219058 Expired - Fee Related CN202659150U (en) | 2012-05-16 | 2012-05-16 | Spiral base-expanding integral drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659150U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678054A (en) * | 2012-05-16 | 2012-09-19 | 阜南县奋进机械制造有限公司 | Spirally bottom-expanding integrated drill bit |
| CN109736715A (en) * | 2019-01-18 | 2019-05-10 | 江苏东合南岩土科技股份有限公司 | The construction method of variable cross-section spiral drill and variable cross-section cast-in-situ bored pile |
| CN110984866A (en) * | 2019-12-31 | 2020-04-10 | 广西路建工程集团有限公司 | Rotary drilling diameter-expanding drill bit and construction application of steel casing full-course follow-up pile forming of rotary drilling diameter-expanding drill bit |
| CN112360343A (en) * | 2020-10-22 | 2021-02-12 | 河北省水利工程局 | Multi-stage reaming process for underground pipeline |
-
2012
- 2012-05-16 CN CN 201220219058 patent/CN202659150U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678054A (en) * | 2012-05-16 | 2012-09-19 | 阜南县奋进机械制造有限公司 | Spirally bottom-expanding integrated drill bit |
| CN102678054B (en) * | 2012-05-16 | 2015-08-19 | 阜南县奋进机械制造有限公司 | A kind of spiral expands the operational method of end one-piece drill bit |
| CN109736715A (en) * | 2019-01-18 | 2019-05-10 | 江苏东合南岩土科技股份有限公司 | The construction method of variable cross-section spiral drill and variable cross-section cast-in-situ bored pile |
| CN109736715B (en) * | 2019-01-18 | 2024-05-24 | 江苏东合南岩土科技股份有限公司 | Variable-section spiral drilling tool and construction method of variable-section bored pile |
| CN110984866A (en) * | 2019-12-31 | 2020-04-10 | 广西路建工程集团有限公司 | Rotary drilling diameter-expanding drill bit and construction application of steel casing full-course follow-up pile forming of rotary drilling diameter-expanding drill bit |
| CN112360343A (en) * | 2020-10-22 | 2021-02-12 | 河北省水利工程局 | Multi-stage reaming process for underground pipeline |
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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: 20130109 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |