CN204877276U - Dig rig drill bit soon and optimize device - Google Patents
Dig rig drill bit soon and optimize device Download PDFInfo
- Publication number
- CN204877276U CN204877276U CN201520496198.7U CN201520496198U CN204877276U CN 204877276 U CN204877276 U CN 204877276U CN 201520496198 U CN201520496198 U CN 201520496198U CN 204877276 U CN204877276 U CN 204877276U
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Abstract
The utility model discloses a dig rig drill bit soon and optimize device, bore the body and flange including the drum, the flange is located the drum and is bored body upper end, and the drum bores body bottom and is equipped with the trapezoidal of evenly distributed or rectangle sawtooth, the drum bore the internal shear component that is equipped with, this shear component comprises three groups or the tooth of cutting more than three groups, the well rear portion in internal chamber is bored at the drum to this three group or the tooth setting of cutting more than three groups, a set of tooth of cutting is cut down by two and is cut the tooth on tooth and one and constitute, cuts the tooth down for two and is close to the sawtooth end, cuts gear position on one to cut under two just near the flange end between the tooth. Because the utility model discloses bore the internal shear component that is equipped with at the drum, the drum brill body utilizes the shear component to cut the boulder piecemeal and takes out after cutting into the rock mass, has the advantage that broken rock is efficient, the boulder processing speed is fast.
Description
Technical field
The utility model relates to a kind of rotary drilling rig, particularly relates to a kind of drilling bit of rotary-digging drilling rig optimization device.
Background technology
Rotary drilling rig is the construction machinery of pore-forming operation in a kind of applicable building foundation engineering.It is the more special drill bit of one that rotary drilling rig cylindrical rock used bores, and major advantage is that drilling depth is very fast.At the work progress of subway, because engineering Sui Zhi district country rock bankets primarily of clay quality, rubble plain fill, silty clay, medium sand, coarse sand, remains chiltern cohesive soil, completely decomposed granite, gentle breeze onion weathering body in the earth formation upper and lower branch inequality is a large feature of its above-mentioned engineering geology, onion weathering body stone matter is hard, intensity is high, and volume is little not easily by probing discovery, therefore causing great difficulty to shield-tunneling construction, is a great problem of puzzlement construction.
Summary of the invention
The purpose of this utility model is to provide that a kind of efficiency of breaking rock is high, the fireballing drilling bit of rotary-digging drilling rig optimization device of huge stone handling.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of drilling bit of rotary-digging drilling rig optimization device, comprises cylinder drill body and flange, and described flange is located at cylinder drill body upper end, is provided with equally distributed trapezoidal or rectangular saw-tooth bottom cylinder drill body; Shear component is provided with in described cylinder drill body, this shear component is made up of the tooth of cutting off of more than three groups or three groups, this more than three groups or three groups cut off the postmedian that tooth is arranged on cylinder drill body inner chamber, cut off tooth for one group tooth and one cut off tooth to form by cutting off under two, tooth is cut off near sawtooth end under two, one is cut off tooth to cut off under two between tooth and near flange end, to be positioned at the top of cutting off tooth under two.
Cut off under described tooth and under cut off the longitudinal cross-section of tooth helical teeth all triangular in shape, the inclined-plane of helical teeth slopes inwardly from bottom to top; The bevel angle of tooth is cut off under the bevel angle cutting off tooth on described is greater than.
The tooth of cutting off of described more than three groups or three groups is arranged on a circular section.
The sidewall of described cylinder drill body offers one or more mud hole.
Adopt after such scheme, because the utility model is provided with shear component in cylinder drill body, after cylinder drill body incision rock mass, utilize shear component that boulder piecemeal is cut off taking-up, have that efficiency of breaking rock is high, the fireballing advantage of huge stone handling.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is upward view of the present utility model; .
Fig. 3 is the lateral view cutting off tooth under the utility model;
Fig. 4 is lateral view the utility model being cut off tooth.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the utility model is a kind of drilling bit of rotary-digging drilling rig optimization device, comprises cylinder drill body 1 and flange 2.
Described flange 2 is located at cylinder drill body 1 upper end, is provided with equally distributed trapezoidal or rectangular saw-tooth 11 bottom cylinder drill body 1.The sidewall of described cylinder drill body 1 is offered two mud holes 12.
Be provided with shear component 3 in described cylinder drill body 1, this shear component 3 is cut off tooth 31 by three groups and is formed, and cut off tooth 31 for these three groups and be arranged on the postmedian of cylinder drill body 1 inner chamber and be arranged on a circular section, three groups are cut off tooth 31 angle is each other 120.
Cut off tooth 31 for described one group tooth 311 and one cut off tooth 312 to form by cutting off under two, tooth 311 is cut off near sawtooth 11 end under two, one is cut off tooth 312 to cut off under two between tooth 311 and near flange 2 end, to be positioned at the top of cutting off tooth 311 under two.Cut off under described tooth 311 and under cut off the longitudinal cross-section of tooth 312 helical teeth all triangular in shape, the inclined-plane of helical teeth slopes inwardly from bottom to top, that is, upper little, greatly lower; Cut off the bevel angle of tooth 311 under the bevel angle cutting off tooth 312 on described is greater than, that is, the tooth angle 3121 above cutting off tooth 312 than under cut off the tooth angle 3111 sharper (as shown in Figure 3, Figure 4) of tooth 311.
Operating principle of the present utility model:
The drilling tool of rotary drilling rig is under the effect of pressurizing load, and rely on the driving of unit head, rock is broken in the shearing realizing drilling tool.The plus-pressure of compression system, through the transmission of drilling rod, makes drilling tool pick cut ground, utilizes drilling tool rotary raw moment of torsion of changing the line of production to make rock produce shearing-crushing.
Light weathered granite onion weathering body integrality is good, and uniaxial compressive strength is high, after rotary drilling rig incision rock mass, rock cannot be cut off taking-up.After the utility model incision rock mass after optimizing, utilize shear component 3 that boulder piecemeal is cut off taking-up.
Emphasis of the present utility model is just: on cylinder drill body, set up shear component.
The above, be only the utility model preferred embodiment, the group number cutting off tooth in shear component can be determined according to needs, therefore the scope of the utility model enforcement can not be limited with this, namely the equivalence change done according to the utility model claim and description with modify, all should still belong in scope that the utility model patent contains.
Claims (4)
1. a drilling bit of rotary-digging drilling rig optimization device, comprises cylinder drill body and flange, and described flange is located at cylinder drill body upper end, is provided with equally distributed trapezoidal or rectangular saw-tooth bottom cylinder drill body; It is characterized in that: in described cylinder drill body, be provided with shear component, this shear component is made up of the tooth of cutting off of more than three groups or three groups, this more than three groups or three groups cut off the postmedian that tooth is arranged on cylinder drill body inner chamber, cut off tooth for one group tooth and one cut off tooth to form by cutting off under two, tooth is cut off near sawtooth end under two, one is cut off tooth under two, cut off close flange end between tooth, be positioned at the top of cutting off tooth under two.
2. drilling bit of rotary-digging drilling rig optimization device according to claim 1, is characterized in that: cut off under described tooth and under cut off the longitudinal cross-section of tooth helical teeth all triangular in shape, the inclined-plane of helical teeth slopes inwardly from bottom to top; The bevel angle of tooth is cut off under the bevel angle cutting off tooth on described is greater than.
3. drilling bit of rotary-digging drilling rig optimization device according to claim 1, is characterized in that: the tooth of cutting off of described more than three groups or three groups is arranged on a circular section.
4. drilling bit of rotary-digging drilling rig optimization device according to claim 1, is characterized in that: the sidewall of described cylinder drill body offers one or more mud hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496198.7U CN204877276U (en) | 2015-07-10 | 2015-07-10 | Dig rig drill bit soon and optimize device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496198.7U CN204877276U (en) | 2015-07-10 | 2015-07-10 | Dig rig drill bit soon and optimize device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877276U true CN204877276U (en) | 2015-12-16 |
Family
ID=54821659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520496198.7U Expired - Fee Related CN204877276U (en) | 2015-07-10 | 2015-07-10 | Dig rig drill bit soon and optimize device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335906A (en) * | 2020-03-11 | 2020-06-26 | 中铁二局集团有限公司 | Construction method for drilling boulder |
| CN112031658A (en) * | 2020-09-24 | 2020-12-04 | 科学城(广州)建筑工程有限公司 | Barrel drill with boulder eccentric extraction cavity teeth |
-
2015
- 2015-07-10 CN CN201520496198.7U patent/CN204877276U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335906A (en) * | 2020-03-11 | 2020-06-26 | 中铁二局集团有限公司 | Construction method for drilling boulder |
| CN111335906B (en) * | 2020-03-11 | 2021-11-23 | 中铁二局集团有限公司 | Construction method for drilling boulder |
| CN112031658A (en) * | 2020-09-24 | 2020-12-04 | 科学城(广州)建筑工程有限公司 | Barrel drill with boulder eccentric extraction cavity teeth |
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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: 20151216 Termination date: 20180710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |