CN2568796Y - Concurrent high cooling straight drill bit - Google Patents
Concurrent high cooling straight drill bit Download PDFInfo
- Publication number
- CN2568796Y CN2568796Y CN 02276978 CN02276978U CN2568796Y CN 2568796 Y CN2568796 Y CN 2568796Y CN 02276978 CN02276978 CN 02276978 CN 02276978 U CN02276978 U CN 02276978U CN 2568796 Y CN2568796 Y CN 2568796Y
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- utility
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- model
- drill bit
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Abstract
The utility model discloses a concurrent high cooling straight drill bit, which belongs to a rock drilling tool. The utility model aims to provide the improved concurrent high cooling straight drill bit to overcome the defects that a traditional drill bit does not have favorable slag discharge, high cooling efficiency of the drill bit, etc. The utility model is composed of a drill body, a hard alloy blade welded with the top end of the drill body, a blade angle, a powder discharging slot and a taper hole. The utility model is characterized in that the top end of the drill body is provided with a concave slot, the part close to the blade angle is provided with a water flushing hole, the water outlet end of the water flushing hole is arranged in the concave slot and a water inlet end is communicated with the taper hole. The utility model is mainly used for the rock drilling tool.
Description
Technical field
The utility model relates to the strong cold mono-line bit of a kind of following current, belongs to drill rod.
Background technology
At present, shape of a hoof mono-line bit is the advanced product in the mono-line bit, it at home market sales volume last year be 1,000 ten thousand, account for 50% of whole market share.It also is a kind of leading products in the international market, but also there are two problems technically in it:
1, " unobstructed deslagging " is the major issue in the drilling tool design, though the sludge groove section of shape of a hoof bore bit has increased a lot, but row's powder is still unobstructed inadequately, because the flushing water hole of shape of a hoof bore bit is on the sprue of sludge groove, bore bit is by its recirculation water flushing cinder, when the rock slag from broken petrographic province when the sludge groove sprue flows out, its water (flow) direction just in time liquidates with the bath front, because the flow velocity of flushing water is much larger than the flow velocity of flushing cinder water, therefore, part rock slag is rinsed the water broken petrographic province of refunds once more, carries out the repetition fragmentation, this has just reduced the punching rate of bore bit, has quickened the wearing and tearing of bore bit.
2, bore bit is when impact, rotation rock drilling, the linear velocity of two basils of its carbide alloy sword sheet (outer garden Zhou Chu) is the highest, the operating temperature of basil front is up to 600-750 ℃, and with the center positions of two kinds of shape of a hoof bore bit flushing water holes at sludge groove, apart from bore bit two basil farthest, this just greatly reduces the water cooling effect, has aggravated the wearing and tearing of the alloy basil, causes the hot tearing and the initial failure of alloy.
Summary of the invention
The purpose of this utility model is to provide a kind of improved following current strong cold mono-line bit, and the hole of will washing by water is shifted and sets up the water hole groove, to overcome above-mentioned shortcoming.
Technical solution of the present utility model is: two basils that the former bath hole that is positioned at the sludge groove center position is moved to alloy sword sheet nearby, set up groove simultaneously, the water side in bath hole is placed in the groove, thereby strengthened cooling effect, reduced thermal shock strength.
The utility model is made up of pricker body 1, the sword sheet 2 that is welded on pricker body 1 top, the basil 9, sludge groove 4 and taper hole 8, it is characterized in that: the top of described pricker body 1 is provided with groove 7, the described basil 9 have nearby the bath hole 5, the water side in bath hole 5 places in the groove 7, and water inlet end is connected with taper hole 8.
Described bath hole 5 is 2, places respectively in the basil 9 groove 7 nearby.
Described bath hole 5 is 3, and interior each 1 of the basil 9 groove nearby also has 1 between the sword sheet.
The utility model has the advantages that: the bath hole that the bore bit after the improvement will be positioned at the sludge groove center position moves to the newly-increased groove in the bore bit upper left corner, cooling water just can directly enter the high-temperature region of the alloy basil, strengthened cooling effect, prolonged the application life of bore bit, simultaneously, when backwater flows out through sludge groove, can be smoothly the rock slag be discharged, avoided the part rock slag of traditional bore bit to be rinsed the water broken petrographic province that recoils back and repeated the drawback of fragmentation.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model, wherein, and 1-pricker body, 2-carbide alloy sword sheet, 4-sludge groove, 7-groove.
Fig. 2 is the vertical view of Fig. 1, wherein, and 2-sword sheet, 4-sludge groove, the strong cold punching of 5-water hole, 7-groove, the 9-basil.
Fig. 3 is the sectional view of Fig. 2, wherein, and 3-solder layer, the strong cold water hole of 5-, 7-groove, 8-taper hole.
Fig. 4 is the structural representation of another embodiment of the utility model, wherein, and 1-pricker body, 2-carbide alloy sword sheet, 4-sludge groove, 7-groove.
Fig. 5 is the vertical view of Fig. 4, wherein, and 2-carbide alloy sword sheet, 4-sludge groove, 5, the strong cold punching of 6-water hole, 7-groove, the 9-basil.
Fig. 6 is the sectional view of Fig. 5, wherein, and 2-carbide alloy sword sheet, 5, the strong cold punching of 6-water hole, 7-groove, 8-taper hole, 10-steel core.
The specific embodiment
Below in conjunction with accompanying drawing the utility model and the specific embodiment thereof are described in further detail.
Example 1
Referring to Fig. 1-3, when the bore bit rock drilling, press water enters pricker body 1 by taper hole 8, directly flow to the high-temperature region of the basil 9 through strong cold punching water hole 5, bore bit is played the reinforcement cooling effect, because bath hole 5 places in the groove 7, water flows to the high-temperature region of the basil 9 under the attached wall effect of the guiding function of groove 7 and current, improved cooling effect, behind the water cooling basil 9 high-temperature regions of bath hole 5 and groove outflow, backwater carries the rock slag and is discharged by sludge groove 4 following currents, because bath hole 5 is from the center position of sludge groove 4, the alloy basil 9 that moves to the bore bit upper left corner nearby, deslagging water just can not liquidate with flushing water like this, thereby has solved the problem of " unobstructed deslagging " smoothly.
Example 2
Referring to Fig. 4-6, water inlet, cooling, deslagging are all identical with example 1, the hole 5 of just washing by water is 3, interior each 1 of the basil 9 groove nearby also has 1 between the sword sheet, and alloy sword sheet 2 is divided into two sections, one steel core 10 is arranged between two sections sword sheets, play the effect of the two sections sword sheets in location, alloy sword sheet has lacked middle one section simultaneously, escapable cost (every bore bit can be saved 4.3 yuan).
Claims (3)
1, the strong cold mono-line bit of a kind of following current, form by pricker body (1), the sword sheet (2) that is welded on pricker body (1) top, the basil (9), sludge groove (4) and taper hole (8), it is characterized in that: the top of described pricker body (1) is provided with groove (7), the described basil (9) bath hole (5) arranged nearby, the water side in bath hole (5) places in the groove (7), and water inlet end is connected with taper hole (8).
2, mono-line bit as claimed in claim 1 is characterized in that described bath hole (5) is 2, places respectively in the basil (9) groove (7) nearby.
3, mono-line bit as claimed in claim 1 is characterized in that described bath hole (5) is 3, and interior each 1 of the basil (9) groove nearby also has 1 between the sword sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276978 CN2568796Y (en) | 2002-07-27 | 2002-07-27 | Concurrent high cooling straight drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276978 CN2568796Y (en) | 2002-07-27 | 2002-07-27 | Concurrent high cooling straight drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2568796Y true CN2568796Y (en) | 2003-08-27 |
Family
ID=33740711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276978 Expired - Fee Related CN2568796Y (en) | 2002-07-27 | 2002-07-27 | Concurrent high cooling straight drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2568796Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444383A (en) * | 2011-12-06 | 2012-05-09 | 铜陵市久泰重型工矿设备有限公司 | Slotted drill |
| CN103382810A (en) * | 2013-07-26 | 2013-11-06 | 中国矿业大学 | Special drill bit for bottom anchor drilling machine |
-
2002
- 2002-07-27 CN CN 02276978 patent/CN2568796Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444383A (en) * | 2011-12-06 | 2012-05-09 | 铜陵市久泰重型工矿设备有限公司 | Slotted drill |
| CN103382810A (en) * | 2013-07-26 | 2013-11-06 | 中国矿业大学 | Special drill bit for bottom anchor drilling machine |
| CN103382810B (en) * | 2013-07-26 | 2016-01-20 | 中国矿业大学 | Anchor rig target drill of a kind of end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |