CN203808843U - Drilling tool capable of preventing rod disengaging - Google Patents
Drilling tool capable of preventing rod disengaging Download PDFInfo
- Publication number
- CN203808843U CN203808843U CN201420200474.6U CN201420200474U CN203808843U CN 203808843 U CN203808843 U CN 203808843U CN 201420200474 U CN201420200474 U CN 201420200474U CN 203808843 U CN203808843 U CN 203808843U
- Authority
- CN
- China
- Prior art keywords
- bore
- insertion end
- drill steel
- cylindrical section
- drilling tool
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 238000003780 insertion Methods 0.000 claims description 31
- 230000037431 insertion Effects 0.000 claims description 31
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
A drilling tool capable of preventing rod disengaging comprises a drilling rod and a drilling head. Water flow through holes are formed in the drilling rod and the drilling head, a conical insert end is arranged on the head portion of the drilling rod, a cylindrical section is arranged on the inner side of the insert end, a boss with external threads is arranged on the cylindrical section close to the insert end, a blind hole is formed in the drilling head, the blind hole comprises a conical hole and a round hole sequentially from inside to outside, a narrowed convex ring is arranged in the round hole, and the convex ring is provided with internal threads matched with the external threads on the cylindrical section. The boss and the convex ring are matched to be locked and then further clamped for connection, under the condition that conical cooperation looses and the boss and the convex ring are still connected, the drilling head can not be disengaged from the end portion of the drilling rod, and the drilling head is effectively prevented from disengaging from the drilling rod.
Description
Technical field
The utility model relates to drilling tool technical field, specifically a kind of drilling tool of anti-drop rod.
Background technology
Drilling tool is the instrument often using in mine, capital construction industry, its structure generally comprises drill steel and bore bit, drill steel is the actuated element to bore bit by transmission of power, bore bit is to directly act on the element for the treatment of rock drilling surface, in general, on bore bit, be inlaid with wear-resisting alloy sheet, by alloy sheet, contact with treating rock drilling stone, realize the object of pricker hole.
In pricker hole, especially during pricker deep hole processed, can block pricker phenomenon.While there is card pricker phenomenon, drilling tool need to be retreated timely, to bore bit is exited, drilling tool is activated.In existing drilling tool, between bore bit and drill steel, generally all by Cone fit, undertaken, this fit structure is when pricker manufacturing, due to what apply, it is normal pressure, utilize wedge principle, more press tighter, so this structures shape its in the process in pricker hole, be can not produce de-pricker.But the possibility that but exists bore bit to depart from from drill steel in the process retreating, does not have good solution at present for this phenomenon.
Utility model content
While taking out at home and abroad for drilling tool self-fluxing hole, the phenomenon that existing bore bit easily comes off from drill steel, the utility model provides a kind of improved drilling tool, makes to form a safe locking structure between bore bit and drill steel, prevents that bore bit from coming off on drill steel.
The technical scheme in the invention for solving the technical problem is:
A drilling tool for anti-drop rod, comprises drill steel and bore bit, it is characterized in that,
Head at described drill steel is provided with a cone shape insertion end, and is provided with a cylindrical section in the inner side of described insertion end, and is being provided with one with externally threaded convex near on the described cylindrical section of described insertion end,
On described bore bit, be provided with a blind hole, described blind hole is followed successively by conical bore and circular hole from inside to outside, and in described circular hole, is provided with a prominent ring dwindling, and on described prominent ring, is provided with the internal thread coordinating with external screw thread on cylindrical section,
And when drill steel insertion end is fitted in bore bit conical bore completely, described convex falls within the circular hole space between prominent ring and conical bore completely.
Further, on described bore bit cylindroid, be provided with four spiral helicine grooves of uniform setting.
Further, the conicity of described conical bore part is between 1 degree to 5 degree, and the conicity of described insertion end is identical with the conicity at conical bore place.
A drilling tool for anti-drop rod, comprises drill steel and bore bit, it is characterized in that,
Connecting portion at described bore bit is a cone shape insertion end, and in the inner side of described insertion end, is provided with a cylindrical section, and is being provided with one with externally threaded convex near on the described cylindrical section of described insertion end,
Connecting portion at described drill steel is provided with a blind hole, and described blind hole is followed successively by conical bore and circular hole from inside to outside, and in described circular hole, is provided with a prominent ring dwindling, and on described prominent ring, is provided with the internal thread coordinating with external screw thread on cylindrical section,
And when drill steel insertion end is fitted in bore bit conical bore completely, described convex falls within the circular hole space between prominent ring and conical bore completely.
Further, on described bore bit cylindroid, be provided with four spiral helicine grooves of uniform setting.
Further, the conicity of described conical bore part is between 1 degree to 5 degree, and the conicity of described insertion end is identical with the conicity at conical bore place.
The beneficial effects of the utility model are: during use, first by the cooperation of convex and prominent ring, both are locked, and then clamped further, realize both connections, in taper fit, occur loosening in the situation that, owing to ining succession or in annexation, so the phenomenon that bore bit also there will not be self-fluxing boom end to come off, effectively prevents that bore bit from coming off on drill steel.
Accompanying drawing explanation
Fig. 1 is the stereogram (rear side) of bore bit.
Fig. 2 is the stereogram (front side) of bore bit.
Fig. 3 is the schematic diagram of the utility model disassembly status.
Fig. 4 is the schematic diagram of Fig. 3 assembled state.
Fig. 5 is the schematic diagram of embodiment bis-.
In figure: 1 drill steel, 11 insertion ends, 12 cylindrical sections, 13 convexes, 2 connecting portions, 21 grooves, 22 conical bores, 23 circular holes, 24 reamings, 25 prominent rings, 3 inlay portion, 31 alloy filler rods, 32 breach, 33 circular grooves, 4 cone match, 5 through holes.
The specific embodiment
Embodiment mono-, as shown in Figures 1 to 4,
A drilling tool for anti-drop rod, comprises drill steel and bore bit.
Drill steel 1 is forged steel, and adopts Technology for Heating Processing to form higher intensity.There is in the longitudinal direction higher straightness accuracy.Head at drill steel 1 is provided with a cone shape insertion end 11, the tapering of tapered segment is best between 1 degree to 5 degree, for coordinating with bore bit, and under the effect of pressure, Cone fit face forms a chock effect, identical with existing taper connection principle.Rear side in drill steel insertion end 11 is provided with a cylindrical section 12, and is being provided with one with externally threaded convex 13 near on the cylindrical section of described insertion end.The other end of drill steel is link, for being connected with another drill steel or the power-equipment of transferring power.
Below bore bit is introduced, bore bit partly comprises the portion of inlaying and the connecting portion linking into an integrated entity by friction welding each other, forms a friction welding seam between two parts.
Connecting portion 2 is cylindric, adopt rolling technology moulding, and be evenly equipped with four spiral helicine grooves 21 at the external surface of connecting portion, this groove 21 can obtain by the shape of the roll of setting, and this technique is often used at mechanical field, for example, the gear of rolling forming is exactly this technique adopting, the connecting portion interior solid degree of this moulding is better, and internal flaw is little, and integral body has good intensity.Particularly there is good axial compression resistance performance, meet the basic demand of drilling tool to intensity.
Inlaying portion 3 is that pier is molded, adopt forcing press and mould to carry out moulding, the whole frustum for increasing gradually from connecting portion is inlaid with and is criss-cross alloy filler rod 31 on the work plane of the portion of inlaying 3, mosaic technology is technique common in drilling tool production technology, is not repeating.Inlaying on end surface between alloy filler rod is provided with breach 32, and this breach can be one-body molded in the molded process of pier, has good molding effect.Totally four of breach 32, uniform, and with above-mentioned groove corresponding perforation one by one.Central authorities in the portion of inlaying are provided with a circular groove 33, it is a space that cooling water is temporary, and connect and be connected between circular groove 33 and described breach, form an aquaporin, in bore bit, be provided with a through hole 5, one end of through hole is arranged in circular groove, and the waterflood path by drill steel injects cooling water, realizes the distribution of cooling water.
Then in hole of centre drill of connecting portion 2, it is a blind hole, and with taper drilling tool, bore the conical bore 22 of a taper, and expand in the outer end of conical bore the circular hole 23 that a diameter is greater than conical bore, and reaming 24 of internal turning near conical bore at circular hole, at the Outboard Sections of circular hole, form a prominent ring 25 dwindling like this, and on prominent ring, be provided with the internal thread coordinating with external screw thread on cylindrical section, use tapping tool can complete.The conicity of conical bore part is best between 1 degree to 5 degree, can effectively coordinate with the insertion end on drill steel drill steel.
And when drill steel insertion end 11 is fitted in bore bit conical bore 22 completely, described convex 13 falls within the circular hole space between prominent ring and conical bore completely, and there is certain activity surplus, make the site of action of drill steel and bore bit drop on taper fit face place completely, and make taper fit mask have certain activity surplus.
In the situation of normal work, cone match 4 places of bore bit and drill steel are stressed, and under the pressure of drill steel, both match ratios are tightr simultaneously.Occurring in the jammed situation of bore bit card; can carry out micro-rotation drill steel; can realize discharge stone fragment; helical groove has good deslagging effect; meanwhile, owing to being provided with convex 13 and prominent ring 25 between bore bit and drill steel, form a snap close; can prevent that bore bit is completely separated with drill steel, form effectively protection.
Embodiment bis-, as shown in Figure 5,
Be the blind hole part of the binding site between bore bit 2 and drill steel 1 and the position displacement of insertion end part with embodiment mono-difference.Particularly, connecting portion at bore bit 2 is a cone shape insertion end, and the rear side in insertion end is provided with a cylindrical section, and be provided with one with externally threaded convex near on the described cylindrical section of described insertion end, connecting portion at drill steel 1 is provided with a blind hole, described blind hole is followed successively by conical bore and circular hole from inside to outside, and in described circular hole, be provided with a prominent ring dwindling, and on described prominent ring, be provided with the internal thread coordinating with external screw thread on cylindrical section, and when drill steel insertion end is fitted in bore bit conical bore completely, described convex falls within the circular hole space between prominent ring and conical bore completely.Like this, between bore bit and drill steel, also can form a taper fit face 4, and between forms axial anti-falling limit, there is same effect with embodiment mono-.
Except the technical characterictic described in manual, be the known technology of those skilled in the art.
Claims (6)
1. a drilling tool for anti-drop rod, comprises drill steel and bore bit, at described drill steel and bore bit inside, is provided with current through hole, it is characterized in that,
Head at described drill steel is provided with a cone shape insertion end, and is provided with a cylindrical section in the inner side of described insertion end, and is being provided with one with externally threaded convex near on the described cylindrical section of insertion end,
On described bore bit, be provided with a blind hole, described blind hole is followed successively by conical bore and circular hole from inside to outside, and in described circular hole, is provided with a prominent ring dwindling, and on described prominent ring, is provided with the internal thread coordinating with external screw thread on cylindrical section,
And when drill steel insertion end is fitted in bore bit conical bore completely, described convex falls within the circular hole space between prominent ring and conical bore completely.
2. the drilling tool of a kind of anti-drop rod according to claim 1, is characterized in that, is provided with four spiral helicine grooves of uniform setting on described bore bit cylindroid.
3. the drilling tool of a kind of anti-drop rod according to claim 1, is characterized in that, the conicity of described conical bore part is between 1 degree to 5 degree, and the conicity of described insertion end is identical with the conicity at conical bore place.
4. a drilling tool for anti-drop rod, comprises drill steel and bore bit, at described drill steel and bore bit inside, is provided with current through hole, it is characterized in that,
Connecting portion at described bore bit is a cone shape insertion end, and in the inner side of described insertion end, is provided with a cylindrical section, and is being provided with one with externally threaded convex near on the described cylindrical section of described insertion end,
Connecting portion at described drill steel is provided with a blind hole, and described blind hole is followed successively by conical bore and circular hole from inside to outside, and in described circular hole, is provided with a prominent ring dwindling, and on described prominent ring, is provided with the internal thread coordinating with external screw thread on cylindrical section,
And when drill steel insertion end is fitted in bore bit conical bore completely, described convex falls within the circular hole space between prominent ring and conical bore completely.
5. the drilling tool of a kind of anti-drop rod according to claim 4, is characterized in that, is provided with four spiral helicine grooves of uniform setting on described bore bit cylindroid.
6. the drilling tool of a kind of anti-drop rod according to claim 4, is characterized in that, the conicity of described conical bore part is between 1 degree to 5 degree, and the conicity of described insertion end is identical with the conicity at conical bore place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200474.6U CN203808843U (en) | 2014-04-23 | 2014-04-23 | Drilling tool capable of preventing rod disengaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200474.6U CN203808843U (en) | 2014-04-23 | 2014-04-23 | Drilling tool capable of preventing rod disengaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808843U true CN203808843U (en) | 2014-09-03 |
Family
ID=51447616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200474.6U Expired - Lifetime CN203808843U (en) | 2014-04-23 | 2014-04-23 | Drilling tool capable of preventing rod disengaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130658A (en) * | 2017-06-03 | 2017-09-05 | 贵州安顺顺达机械服务有限公司 | A kind of disintegrating machine crushing hammar drill rod being easily installed |
-
2014
- 2014-04-23 CN CN201420200474.6U patent/CN203808843U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130658A (en) * | 2017-06-03 | 2017-09-05 | 贵州安顺顺达机械服务有限公司 | A kind of disintegrating machine crushing hammar drill rod being easily installed |
| CN107130658B (en) * | 2017-06-03 | 2019-09-27 | 泉州台商投资区博汇机械研发有限公司 | A kind of crusher crushing hammar drill rod being easily installed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160405 Address after: 252311 West Lake Town, Yanggu County, Shandong, Liaocheng Patentee after: YANGGU WUYUE MINGING MACHINERY Co.,Ltd. Address before: 252311 West Lake Industrial Park, Yanggu County, Shandong, Liaocheng Patentee before: SHANDONG WUYUE DRILLING TOOLS CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180319 Address after: West Lake 252311 Shandong province Liaocheng city Yanggu County Township Zhang Dai Village No. 249 Patentee after: Wang Yinhong Address before: 252311 West Lake Town, Yanggu County, Shandong, Liaocheng Patentee before: YANGGU WUYUE MINGING MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200512 Address after: 252000 Xihu town government residence, Yanggu County, Liaocheng City, Shandong Province Patentee after: Shandong Yanggu Tianyue Drilling Tool Co.,Ltd. Address before: West Lake 252311 Shandong province Liaocheng city Yanggu County Township Zhang Dai Village No. 249 Patentee before: Wang Yinhong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |