CN104895500A - Drill bit for cluster type down-hole hammer - Google Patents
Drill bit for cluster type down-hole hammer Download PDFInfo
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- CN104895500A CN104895500A CN201510280990.3A CN201510280990A CN104895500A CN 104895500 A CN104895500 A CN 104895500A CN 201510280990 A CN201510280990 A CN 201510280990A CN 104895500 A CN104895500 A CN 104895500A
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- drill bit
- hole hammer
- plane
- cluster type
- type down
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Abstract
The invention discloses a drill bit for a cluster type down-hole hammer. The drill bit comprises a drill bit body, an annular small plane is arranged on the end face of the drill bit body, an inwards-concave plane with the height of the cross section smaller than the height of the cross section of the small plane is arranged on the inner side of the small plane, a plurality of middle teeth are evenly installed on the inwards-concave plane, an end face inclined hole in the large end of the drill bit is omitted and changes into a straight hole channel, meanwhile, the alloy top of the drill bit is made to be located on the same plane due to the type of the inwards-concave plane, and supporting force on the down-hole hammer is increased.
Description
Technical field
The present invention relates to a kind of drill bit, relate to a kind of cluster type down-hole hammer drill bit specifically, belong to down-the-hole drilling tool technical field.
Background technology
Current down-the-hole drilling tool drill bit head major part is two or more oblique air vent channels, and head end also coordinates oblique pore, there is the end face groove of several connection pore and drill bit periphery, and drill bit surrounding all has darker in discharging the sludge groove carrying rock slag waste gas, and be not suitable for the job requirements of cluster type down-the-hole hammer hammer.
Conventional down-the-hole drilling tool is applicable to single down-hole hammer, end face groove and sludge groove Main Function are by the border of rock slag guiding down-hole hammer, and cluster type down-hole hammer requires that rock slag should from cluster type down-hole hammer crust bucket wall deslagging, instead of along the border that inner son is hammered into shape, the end face groove of conventional down-the-hold drill bit and the layout type of sludge groove not only can not be good the rock slag of cluster type down-hole hammer fragmentation is led, and inhibition can be played to collecting of rock slag.
Conventional bit is to the support on ground only by the several alloy of end face, and concerning cluster type down-hole hammer, the support degree of requirement is higher, and conventional bit alloy layout can not provide enough support forces.
Summary of the invention
The problem to be solved in the present invention is the above-mentioned defect of traditional down-the-hole drill bit, provides a kind of waste gas effectively can getting rid of son hammer, improves the carrying capacity of waste gas to rock slag simultaneously; Effective raising drill bit to the uniformity of catalase, wearing and tearing evenly; The cluster type down-hole hammer drill bit of effective guarantee operating efficiency.
In order to solve the problem, the present invention by the following technical solutions:
A kind of cluster type down-hole hammer drill bit, comprise bit body, the end face of bit body is provided with the facet of a ring-type, described faceted inner side arranges its depth of section lower than concave plane in faceted depth of section, and interior concave plane is evenly provided with several center tooth.
Below the further optimization of the present invention to such scheme:
The number of center tooth is even number, is symmetrical arranged between two.
Further optimization: the center described bit body being positioned at indent plane is provided with the pore being communicated with the inner air flue of bit body along its axis; Effectively can get rid of the waste gas of son hammer, improve the carrying capacity of waste gas to rock slag simultaneously, the drilling work requirement of coupling cluster type down-hole hammer, effectively ensure that operating efficiency.
Further optimization: the position end face of described bit body being positioned at facet periphery is provided with the inclined-plane of ring-type, and inclined-plane is evenly provided with several heel teeths.The number of heel teeth is even number, is symmetrical arranged between two.Heel teeth and center tooth all adopt alloy to make, and heel teeth and center tooth symmetric design respectively, is convenient to stressed.
Further optimization: the depth of section of heel teeth and the depth of section of center tooth in the same plane.Effectively improve the uniformity of drill bit to catalase, wearing and tearing evenly.
Further optimization: described facet is evenly provided with several sludge grooves, described sludge groove is communicated with annular chamfer respectively with interior concave plane.
Further optimization: and sludge groove and heel teeth and center tooth are interspersed, and are convenient to the uniform discharge of rock slag and waste gas.
The present invention adopts such scheme, has the following advantages:
1, eliminate the end face inclined hole of drill bit major part, change a straight hole passage into, adopt indent planar simultaneously, make drill bit alloy top sentence same plane, increase the support degree to down-hole hammer;
2, heel teeth and center tooth all adopt alloy to make, and heel teeth and center tooth be symmetric design respectively, is convenient to stressed, the depth of section of heel teeth and the depth of section of center tooth in the same plane.Effectively improve the uniformity of drill bit to catalase, wearing and tearing evenly.
3, eliminate original several end face grooves, change less sludge groove into, and sludge groove and heel teeth and center tooth are interspersed, and are convenient to the uniform discharge of rock slag and waste gas;
4, air vent is only had in the middle of cluster type down-hole hammer drill bit, and bit face symmetric design, effectively can get rid of the waste gas of son hammer, improve the carrying capacity of waste gas to rock slag simultaneously, the drilling work requirement of coupling cluster type down-hole hammer, effectively ensure that operating efficiency.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the embodiment of the present invention;
Accompanying drawing 2 is the lateral view of accompanying drawing 1.
in figure: 1-bit body; 2-facet; 3-annular chamfer; 4-heel teeth; Concave plane in 5-; 6-center tooth; 7-pore; 8-screw thread; 9-sludge groove.
Detailed description of the invention
Embodiment, as shown in Figure 1 and Figure 2, a kind of cluster type down-hole hammer drill bit, comprise bit body 1, the end face of bit body 1 is provided with the facet 2 of a ring-type, the inner side of described facet 2 arranges its depth of section lower than concave plane 5 in the depth of section of facet 2, interior concave plane 5 is evenly provided with several center tooth 6.
The number of center tooth 6 is even number, and corresponding two are arranged symmetrically.
The center described bit body 1 being positioned at indent plane 5 is provided with the pore 7 being communicated with the inner air flue of bit body along its axis; Effectively can get rid of the waste gas of son hammer, improve the carrying capacity of waste gas to rock slag simultaneously, the drilling work requirement of coupling cluster type down-hole hammer, effectively ensure that operating efficiency.
Be provided with one section of screw thread 8 in pore 7, screw thread 8 is mainly used in the Quick change beater head instrument coordinating down-hole hammer, and the rapid free realizing son hammer tup tears replacing open.
The end of described pore 7 and the link position of interior concave plane 5 are tapered setting, the uniform divided flows of the waste gas of the rock slag that is easy to carry.
The position end face of described bit body 1 being positioned at facet 2 periphery is provided with the inclined-plane 3 of ring-type, and inclined-plane 3 is evenly provided with several heel teeths 4.The number of heel teeth 4 is even number, and corresponding two are arranged symmetrically.
Heel teeth 4 and center tooth 6 all adopt alloy to make, and heel teeth 4 and center tooth 6 be symmetric design respectively, is convenient to stressed, the depth of section of heel teeth 4 and the depth of section of center tooth 6 in the same plane.Effectively improve the uniformity of drill bit to catalase, wearing and tearing evenly.
Described facet is evenly provided with several sludge grooves 9, described sludge groove 9 is communicated with annular chamfer 3 respectively with interior concave plane 4.And sludge groove 9 is interspersed with heel teeth 4 and center tooth 6, is convenient to the uniform discharge of rock slag and waste gas.
Change two large end face grooves of guiding into equally distributed multiple little sludge groove 9, make the dispersion of air-flow more reasonable, be more conducive to the cleaning of the single son hammer tup periphery rock slag of cluster type down-hole hammer.
Claims (8)
1. a cluster type down-hole hammer drill bit, comprise bit body (1), it is characterized in that: the facet (2) end face of bit body (1) being provided with a ring-type, the inner side of described facet (2) arranges the interior concave plane (5) of its depth of section lower than the depth of section of facet (2), interior concave plane (5) is evenly provided with several center tooth (6).
2. a kind of cluster type down-hole hammer drill bit according to claim 1, is characterized in that:
The number of center tooth (6) is even number, is symmetrical arranged between two.
3. a kind of cluster type down-hole hammer drill bit according to claim 1 and 2, is characterized in that:
The center described bit body (1) being positioned at indent plane (5) is provided with the pore (7) being communicated with the inner air flue of bit body along its axis.
4. a kind of cluster type down-hole hammer drill bit according to claim 3, is characterized in that:
The end face of described bit body (1) is positioned at the inclined-plane (3) that the peripheral position of facet (2) is provided with ring-type, inclined-plane (3) are evenly provided with several heel teeths (4).
5. a kind of cluster type down-hole hammer drill bit according to claim 4, is characterized in that:
The number of heel teeth (4) is even number, is symmetrical arranged between two.
6. a kind of cluster type down-hole hammer drill bit according to claim 5, is characterized in that:
The depth of section of heel teeth (4) and the depth of section of center tooth (6) in the same plane.
7. a kind of cluster type down-hole hammer drill bit according to claim 6, is characterized in that:
Described facet is evenly provided with several sludge grooves (9), described sludge groove (9) is communicated with annular chamfer (3) respectively with interior concave plane (4).
8. a kind of cluster type down-hole hammer drill bit according to claim 7, is characterized in that:
Sludge groove (9) is interspersed with heel teeth (4) and center tooth (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280990.3A CN104895500A (en) | 2015-05-28 | 2015-05-28 | Drill bit for cluster type down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280990.3A CN104895500A (en) | 2015-05-28 | 2015-05-28 | Drill bit for cluster type down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104895500A true CN104895500A (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510280990.3A Pending CN104895500A (en) | 2015-05-28 | 2015-05-28 | Drill bit for cluster type down-hole hammer |
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| Country | Link |
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| CN (1) | CN104895500A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192000A (en) * | 2016-11-29 | 2019-08-30 | 敏康国际有限公司 | Drill bit |
| CN111550179A (en) * | 2020-05-22 | 2020-08-18 | 杨忠财 | Rock-socketed wall forming system and method for continuous wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH622312A5 (en) * | 1977-09-30 | 1981-03-31 | Anton Broder | Drill bit, in particular for drilling in overburden |
| CN1406309A (en) * | 2000-03-02 | 2003-03-26 | 桑德维克公司 | Rock drill bit and method for its manufacturing |
| US20080142273A1 (en) * | 2005-11-21 | 2008-06-19 | Hall David R | Downhole Hammer Assembly |
| CN100458097C (en) * | 2003-05-26 | 2009-02-04 | 国际壳牌研究有限公司 | Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole |
-
2015
- 2015-05-28 CN CN201510280990.3A patent/CN104895500A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH622312A5 (en) * | 1977-09-30 | 1981-03-31 | Anton Broder | Drill bit, in particular for drilling in overburden |
| CN1406309A (en) * | 2000-03-02 | 2003-03-26 | 桑德维克公司 | Rock drill bit and method for its manufacturing |
| CN100458097C (en) * | 2003-05-26 | 2009-02-04 | 国际壳牌研究有限公司 | Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole |
| US20080142273A1 (en) * | 2005-11-21 | 2008-06-19 | Hall David R | Downhole Hammer Assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192000A (en) * | 2016-11-29 | 2019-08-30 | 敏康国际有限公司 | Drill bit |
| CN111550179A (en) * | 2020-05-22 | 2020-08-18 | 杨忠财 | Rock-socketed wall forming system and method for continuous wall |
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| PB01 | Publication | ||
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Application publication date: 20150909 |