CN204109107U - A kind of borehole-enlarging drilling tool - Google Patents
A kind of borehole-enlarging drilling tool Download PDFInfo
- Publication number
- CN204109107U CN204109107U CN201420548097.5U CN201420548097U CN204109107U CN 204109107 U CN204109107 U CN 204109107U CN 201420548097 U CN201420548097 U CN 201420548097U CN 204109107 U CN204109107 U CN 204109107U
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- CN
- China
- Prior art keywords
- drilling rod
- hole
- reamer
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model provides a kind of borehole-enlarging drilling tool, and it comprises a drilling rod, and the bottom of described drilling rod is the apex point of back taper; The bottom of described drilling rod is guide part, and the surface of this guide part is longitudinally provided with spiral helicine chip area; The middle part of described drilling rod is provided with reamer, and the diameter of described reamer is greater than the diameter of described drilling rod; The top of described drilling rod is provided with clamping part.The utility model realizes that high accuracy hole drilling and reaming is disposable to be machined, and especially on slab, high accuracy once completes hole drilling and reaming.Utilize drilling tool of the present utility model to add in running-deep-hole process at secondary, utilize original bolt connecting hole on reel to be again add running-deep-hole to provide good guiding accuracy, guarantee that secondary adds the precision of running-deep-hole; The utility model structure is simple, easy to manufacture, machining accuracy is high, efficiency is high, safe and reliable.
Description
Technical field
The utility model belongs to field of machining, relates to the borehole-enlarging drilling tool that a kind of machining accuracy is high.
Background technology
Mining lifting means is the single rope winding hoist of Φ 4M, in order to the protection to boom hoist cable, the lining wood that wooden or plastic cement is made is added with between steel reel and boom hoist cable, steel reel and boom hoist cable are isolated, realize reel and boom hoist cable available protecting, lining wood is fixed on reel circumferentially by Steel Bolt lining wood, rope phenomenon is stung in order to prevent from coupling bolt major part and boom hoist cable from coming in contact causing, counterbore need be beaten on the wooden connecting pore of lining, during usual processing counterbore, two kinds of drill bits are selected to process at twice, reaming in second time process, there is drill bit centering difficulty, guidance quality is poor, cause holes coaxiality error larger, dormant bolt is easily caused to enter counterbore.Especially after effect work a period of time, under the effect of steel wire rope power, thinning gradually, dormant bolt exposes, cause and sting rope,, must again deepen exerted bolt place counterbore in time, due to effect dismounting difficulty for this reason, this work must use power drill manually to complete on reel, this just increases the coaxiality error of holes further, causes bolt to install difficulty, constitutes great hidden danger simultaneously to the safety of operating personnel.
Utility model content
When the utility model exists hole drilling and reaming to solve in prior art, large and small hole coaxiality error is large, and the problem that when especially again deepening counterbore, coaxiality error increases, provides a kind of borehole-enlarging drilling tool.
The utility model adopts following technical scheme:
A kind of borehole-enlarging drilling tool, comprise a drilling rod, the bottom of described drilling rod is the apex point of back taper; The bottom of described drilling rod is guide part, and the surface of this guide part is longitudinally provided with spiral helicine chip area; The middle part of described drilling rod is provided with reamer, and the diameter of described reamer is greater than the diameter of described drilling rod; The top of described drilling rod is provided with clamping part.
Preferably, the periphery of described reamer is longitudinally provided with chip area.
Preferably, the reamer top of described drilling rod is provided with fixture.
Preferably, the reamer of described drilling rod and drilling rod one-body molded.
The beneficial effects of the utility model are: the utility model realizes that high accuracy hole drilling and reaming is disposable to be machined, and especially on slab, high accuracy once completes hole drilling and reaming.Utilize drilling tool of the present utility model to add in running-deep-hole process at secondary, utilize original bolt connecting hole on reel to be again add running-deep-hole to provide good guiding accuracy, guarantee that secondary adds the precision of running-deep-hole; The utility model structure is simple, easy to manufacture, machining accuracy is high, efficiency is high, safe and reliable.
Accompanying drawing explanation
Fig. 1. be the utility model structural representation;
Fig. 2. be counter bore structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, a kind of borehole-enlarging drilling tool, comprises a tubular drilling rod, and the bottom of described drilling rod is the apex point 1 of back taper; The bottom of described drilling rod is guide part 2, and the surface of this guide part 2 is longitudinally provided with spiral helicine chip area 3; The middle part of described drilling rod is provided with reamer, and the diameter of described reamer 4 is greater than the diameter of described drilling rod; The periphery of described reamer 4 is provided with chip area 5, and reamer 4 top of described drilling rod is provided with fixture 11, and preferred reamer 4 is one-body molded with drilling rod; The top of described drilling rod is provided with clamping part 6.
Isolate to make steel reel 7 and boom hoist cable, the lining wood 9 that wooden or plastic cement is made is added with between steel reel 7 and boom hoist cable, lining wood 9 leaves grooving 8, realize the available protecting to reel and boom hoist cable, lining wood is fixed on lining wood on the periphery of reel by Steel Bolt, rope phenomenon is stung in order to prevent from coupling bolt major part and boom hoist cable from coming in contact causing, counterbore 10 need be beaten on the wooden connecting pore of lining, adopt drilling tool of the present utility model, when beginning is on slab during cold working, first the apex point 1 of the centering cutting portion of drilling tool is dropped into drilling work, hole, the chip of lining wood is discharged by the chip area 3 of guide part 2 longitudinal helical on the surface, when boring saturating slab or dropping into drilling work after being drilled into certain depth by the reamer 4 of drilling tool, because reamer 4 and drilling rod are integrated, the macropore that reamer 4 expands, ensured in small holes in thick by guide part 2 with the coaxial precision of the aperture just starting to bore, chip removal is carried out by the chip area 5 on its periphery during reamer 4 drilling, on slab, high accuracy once completes brill, reaming.Because the past is when processing counterbore 10, process at twice with two kinds of drill bits, reaming in second time process, there is drill bit centering difficulty, guidance quality is poor, cause holes coaxiality error larger, easily cause dormant bolt cannot enter counterbore 10, use drilling tool of the present utility model when again deepening counterbore 10, drilling tool is stretched in original bolt connecting hole, on steel reel 7, original bolt connecting hole provides higher guiding accuracy for reaming, ensure that the security of operating personnel simultaneously.
Claims (4)
1. a borehole-enlarging drilling tool, is characterized in that: comprise a drilling rod, and the bottom of described drilling rod is the apex point of back taper; The bottom of described drilling rod is guide part, and the surface of this guide part is longitudinally provided with spiral helicine chip area; The middle part of described drilling rod is provided with reamer, and the diameter of described reamer is greater than the diameter of described drilling rod; The top of described drilling rod is provided with clamping part.
2. a kind of borehole-enlarging drilling tool according to claim 1, is characterized in that: the periphery of described reamer is longitudinally provided with chip area.
3. a kind of borehole-enlarging drilling tool according to claim 1, is characterized in that: the reamer top of described drilling rod is provided with fixture.
4. a kind of borehole-enlarging drilling tool according to claim 1, is characterized in that: reamer and the drilling rod of described drilling rod are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548097.5U CN204109107U (en) | 2014-09-23 | 2014-09-23 | A kind of borehole-enlarging drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548097.5U CN204109107U (en) | 2014-09-23 | 2014-09-23 | A kind of borehole-enlarging drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204109107U true CN204109107U (en) | 2015-01-21 |
Family
ID=52326463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548097.5U Expired - Fee Related CN204109107U (en) | 2014-09-23 | 2014-09-23 | A kind of borehole-enlarging drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204109107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677490A (en) * | 2019-04-04 | 2021-11-19 | 米勒道尔公司 | Stepped drill with alternating sharpened edges for cleaning deformed fastener openings in cross laminated wood joints |
-
2014
- 2014-09-23 CN CN201420548097.5U patent/CN204109107U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677490A (en) * | 2019-04-04 | 2021-11-19 | 米勒道尔公司 | Stepped drill with alternating sharpened edges for cleaning deformed fastener openings in cross laminated wood joints |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200923 |