CN204002573U - The boring button bit of bridge foundation large diameter pile - Google Patents
The boring button bit of bridge foundation large diameter pile Download PDFInfo
- Publication number
- CN204002573U CN204002573U CN201420292902.2U CN201420292902U CN204002573U CN 204002573 U CN204002573 U CN 204002573U CN 201420292902 U CN201420292902 U CN 201420292902U CN 204002573 U CN204002573 U CN 204002573U
- Authority
- CN
- China
- Prior art keywords
- composite member
- cutterhead body
- diameter pile
- large diameter
- hob holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 abstract description 9
- 239000011435 rock Substances 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 abstract description 4
- 231100000241 scar Toxicity 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses the boring button bit of a kind of bridge foundation large diameter pile, comprise some insert cutters and hob holder composite member and cutterhead body, be provided with two slag suction mouths at the Central Symmetry of described cutterhead body, be provided with at the bottom level of this cutterhead body the backing plate that some thickness does not wait, each described insert cutter and hob holder composite member are welded under corresponding backing plate and form a conical rolling cross section.The utility model can effectively improve the efficiency of rock breaking capacity and the deslagging of drill bit, more than drill bit drilling efficiency can improve 50%--100%, is particularly useful for the large-diameter pile foundation construction in competent bed.
Description
Technical field
The utility model belongs to bridge apparatus field, relates in particular to the boring button bit of a kind of bridge foundation large diameter pile.
Background technology
In major diameter bridge foundation construction, ball tooth rolling drill bit is mainly made up of the insert cutter of several same forms and hob holder composite member and cutterhead body, on cutterhead body, be provided with a slag suction mouth, insert cutter and hob holder composite member are arranged on the panel of cutterhead body bottom, and insert cutter rolls back and forth and forms parallel bottom surface.This structure mainly has the following disadvantages: one, the absorption dynamics of single suction cinder notch is limited, and the rock slag getting off through hobboing cutter fragmentation in construction can not be discharged by this slag suction mouth in time, causes rock slag to repeat broken, has affected the drilling efficiency of drill bit; Two, parallel bottom surface can only make to be broken scar and be subject to the pressure downward of cutter tooth, cause by broken scar be subject to force direction single, cannot quick crashing, cause the construction speed of whole Foundation Design slow, the foundation construction cycle is long.
Utility model content
The purpose of this utility model is to provide the bridge foundation large diameter pile that a kind of efficiency of slagging tap is high, breaking capacity is strong boring button bit.
The boring button bit of this bridge foundation large diameter pile that the utility model provides, comprise some insert cutters and hob holder composite member and cutterhead body, be provided with two slag suction mouths at the Central Symmetry of described cutterhead body, be provided with at the bottom level of this cutterhead body the backing plate that some thickness does not wait, each described insert cutter and hob holder composite member are welded under corresponding backing plate and form a conical rolling cross section.
More steady for guaranteeing the transition in conical rolling cross section, described insert cutter and hob holder composite member have two kinds and two or more different structures.
Compared with prior art, the utlity model has several lower advantages:
1, adopt two slag suction mouths that are arranged symmetrically with by the center at cutterhead body, in the time strengthening the comprehensive absorption dynamics of slag suction mouth, also ensure the uniformity that each slag suction mouth is drawn, the rock slag getting off through hobboing cutter fragmentation in construction can be discharged by these two slag suction mouths in time uniformly, reduce rock slag and repeat fragmentation, ensured the drilling efficiency of drill bit.
2, form a conical rolling cross section by hobboing cutter and hob holder composite member being welded on the backing plate of cutterhead body bottom differing heights, make to be broken scar in the time being subject to the positive pressure of drill bit bottom hobboing cutter cutter tooth, also can be subject to the lateral shear power of drill bit side hobboing cutter cutter tooth, allow and be subject to multidirectional crushing force by broken scar, the breaking capacity of drill bit is improved, and then improve the construction speed of whole Foundation Design, greatly shorten the foundation construction cycle.
The utility model can effectively improve the efficiency of rock breaking capacity and the deslagging of drill bit, more than drill bit drilling efficiency can improve 50%--100%, is particularly useful for the large-diameter pile foundation construction in hard formation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation one of the utility model insert cutter and hob holder composite member.
Fig. 3 is the structural representation two of the utility model insert cutter and hob holder composite member.
Detailed description of the invention
As can be seen from Figure 1, the boring button bit of this bridge foundation large diameter pile of the utility model, comprise some insert cutters and hob holder composite member 1 and cutterhead body 2, be provided with two slag suction mouths 21 at the Central Symmetry of cutterhead body 2, be provided with at the bottom level of this cutterhead body 2 backing plate 22 that some thickness does not wait, each insert cutter and hob holder composite member 1 are welded on corresponding backing plate 22 times and form a conical rolling cross section.
As can be seen from Figures 2 and 3, insert cutter of the present utility model and hob holder composite member 1 have two kinds of different structures at least.
Motion process of the present utility model is as follows:
1, be positioned at each insert cutter of bottom surface, circular cone rolling cross section and the insert cutter of hob holder composite member 1 and contacted by the upper surface of broken scar, it is applied to a pressure downward, making it progressively broken downwards; Along with the rolling of drill bit, the rock slag after fragmentation is discharged uniformly from each slag suction mouth.
2, along with the creeping into of drill bit, be positioned at each insert cutter of side, circular cone rolling cross section and the insert cutter of hob holder composite member 1 and contacted by the inner surface of broken scar, it is applied to a lateral shear power, make its both sides progressively broken; Along with the rolling of drill bit, the rock slag after fragmentation is discharged uniformly from each slag suction mouth.
Work flow of the present utility model is as follows:
1, weldment: discharge → blanking → welding → roughing → fine finishining → inspection
2, forging: discharge → preheating → forging molding → roughing → heat treatment → fine finishining → inspection
3, foundry goods: moulding → smelting → casting → roughing → heat treatment → fine finishining → inspection
4, the weldment, forging and the foundry goods → assembling → final inspection → finished product that are up to the standards.
Claims (2)
1. the boring button bit of bridge foundation large diameter pile, comprise some insert cutters and hob holder composite member (1) and cutterhead body (2), it is characterized in that: be provided with two slag suction mouths (21) at the Central Symmetry of described cutterhead body (2), be provided with at the bottom level of this cutterhead body (2) backing plate (22) that some thickness does not wait, each described insert cutter and hob holder composite member (1) are welded on corresponding backing plate (22) and descend and form a conical rolling cross section.
2. the boring button bit of bridge foundation large diameter pile according to claim 1, is characterized in that: described insert cutter and hob holder composite member (1) have two kinds and two or more different structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292902.2U CN204002573U (en) | 2014-06-04 | 2014-06-04 | The boring button bit of bridge foundation large diameter pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292902.2U CN204002573U (en) | 2014-06-04 | 2014-06-04 | The boring button bit of bridge foundation large diameter pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002573U true CN204002573U (en) | 2014-12-10 |
Family
ID=52042593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292902.2U Expired - Fee Related CN204002573U (en) | 2014-06-04 | 2014-06-04 | The boring button bit of bridge foundation large diameter pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571326B (en) * | 2018-05-09 | 2024-04-19 | 中铁工程装备集团有限公司 | Compound cutting type hard rock tunneling machine cutterhead and tunneling machine thereof |
-
2014
- 2014-06-04 CN CN201420292902.2U patent/CN204002573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571326B (en) * | 2018-05-09 | 2024-04-19 | 中铁工程装备集团有限公司 | Compound cutting type hard rock tunneling machine cutterhead and tunneling machine thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204002573U (en) | The boring button bit of bridge foundation large diameter pile | |
| CN204002569U (en) | For the button bit of bridge foundation large diameter pile boring | |
| CN204002579U (en) | The boring weldering teeth drill bit of bridge foundation large diameter pile | |
| CN203541806U (en) | Welding tooling of backing weld of transverse welding seam | |
| CN204002570U (en) | Weldering teeth drill bit for the boring of bridge foundation large diameter pile | |
| CN204002572U (en) | For the weldering tooth flat bottom bit of bridge foundation large diameter pile boring | |
| CN204002571U (en) | For the ball tooth flat bottom bit of bridge foundation large diameter pile boring | |
| CN201416393Y (en) | High strength matrix diamond drill for oil drilling | |
| CN203343416U (en) | Combined concentrated lead feeding lead pans for casting machine | |
| CN206980827U (en) | A kind of jaw plate of jaw crusher | |
| CN201883945U (en) | Thin-walled diamond drill bit | |
| CN202023506U (en) | Down-the-hole drill bit | |
| CN103993836A (en) | Drill bit for hole drilling in large-diameter pile of bridge foundation | |
| CN203751100U (en) | Wind tower platform beam punching tool | |
| CN206356753U (en) | A kind of high-strength steel gas protecting welding wire | |
| CN203264769U (en) | Novel rock breaker | |
| CN106513511A (en) | Three-head groove machining die for three-way pipe fitting | |
| CN205989023U (en) | A kind of anvil for forged steel | |
| CN202212672U (en) | Residue cutting cleaner for fire cut steel plate | |
| CN206304796U (en) | A kind of stone crusher for building stones metal smelt | |
| CN203904376U (en) | Two-wing type blast furnace drill bit | |
| CN206881825U (en) | A kind of bimetal composite hammer | |
| CN202532888U (en) | Tapping hole brick | |
| CN203129961U (en) | Right-angle groove type two-wing-type anchor bolt drill bit | |
| CN201613339U (en) | Integral stopper head for continuous casting |
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: 20141210 |