CN2314085Y - Screw connected tranversing drill without connecting rod - Google Patents
Screw connected tranversing drill without connecting rod Download PDFInfo
- Publication number
- CN2314085Y CN2314085Y CN 97243225 CN97243225U CN2314085Y CN 2314085 Y CN2314085 Y CN 2314085Y CN 97243225 CN97243225 CN 97243225 CN 97243225 U CN97243225 U CN 97243225U CN 2314085 Y CN2314085 Y CN 2314085Y
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- utility
- model
- grooving 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model relates to a screw-connected grooving drill bit without a connecting rod, which is mainly composed of a drill bit, a drill rod and a grooving tool. The utility model is characterized in that a convex shoulder or an impact sleeve are specially arranged on the drill rod, the grooving tool is directly and freely sheathed on the drill rod, and the drill bit is fixed to the end part of the drill rod by left screw waveform threads. Because the connecting rod is not used, the utility model has the advantages of simple structure, low manufacture cost, and convenient installation and use. Because a plurality of grooves can be drilled on hole wall of a drill hole, the utility model can efficiently control blasting direction and accomplish guided cutting. Thereby, the utility model can be used for the smooth-surface blasting construction of tunnels and the exploitation of construction stone materials, such as marble, etc.
Description
The utility model relates to a kind of drilling tool, a kind of being threaded of more specifically saying so do not have the rod-type of connection slotting drill bit, be pneumatic, electronic or the new-type drilling tool of internal combustion engine hammer drill, be applicable to tunnel smooth blasting construction drill and quarry blast construction drill in the engineerings such as colliery, metallic ore, water power, military affairs.
A kind of screw connected slotting drill bit is disclosed in Chinese utility model patent communique, notification number is CN2100476U, the patent No. is 91213968, and this drill bit has a connecting rod between drill bit and drill steel, grooving tool is installed on connecting rod, can when boring, on hole wall, leave several grooves, its deficiency is owing to be connected with connecting rod between drill bit and drill steel, complex structure, manufacturing cost height, the installing/dismounting trouble is used inconvenience.
The purpose of this utility model provides a kind of being threaded does not have the rod-type of connection slotting drill bit, and the cancellation connecting rod is simple in structure, and low cost of manufacture is easy to install.
The purpose of this utility model is achieved in that and specially on drill steel goes out convex shoulder or install with shrink fit to impact cover that the direct sky of grooving tool is enclosed within on the Cylinder of drill steel, and drill bit is fixed on the end of drill steel by left-handed corrugated thread.
The advantage that the utility model compared with prior art has is: since cancelled connecting rod make simple in structure, low cost of manufacture, connection reliable, easy to install, increase work efficiency, be easy to realize the high yield exploitation of building work stones such as tunnel smooth blasting construction and marble.
Description of drawings:
Accompanying drawing 1 is the slotting drill bit structure chart that has convex shoulder on the utility model drill steel.
Accompanying drawing 2 is structure charts that the slotting drill bit that impacts cover is housed on the utility model drill steel.
Accompanying drawing 3 is the utility model grooving tool cross-section structures.
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in accompanying drawing 1: a kind of being threaded do not have the rod-type of connection slotting drill bit mainly by drill bit 1, drill steel 2 and grooving tool 3 are formed, one end welding-on of drill bit 1 has the in-line of being or criss-cross hard alloy blocks, the other end is the screwed hole that has left-handed waveform internal thread, having weep hole in the bore bit both sides communicates with screwed hole, one end of drill steel 2 is a Cylinder, the Cylinder left end has left-handed waveform external screw thread, the Cylinder right-hand member has convex shoulder, grooving tool 3 is for having the column of garden through hole, at one end welding-on has several hard alloy blocks, grooving tool 3 empty covers are installed on the Cylinder of drill steel 2, and drill bit 1 is fixed on the end of drill steel 2 by left-handed corrugated thread.
Shown in accompanying drawing 2: a kind of nothing that is threaded connects the rod-type slotting drill bit and mainly is made up of drill bit 1, grooving tool 3, impact cover 4, drill steel 5, impact cover 4 and be the garden tubular, be loaded on shrink fit on the Cylinder of drill steel 5, grooving tool 3 empty covers are installed on the Cylinder of drill steel 5, and drill bit 1 is fixed on the end of drill steel 5 by left-handed corrugated thread.
Shown in accompanying drawing 3: accompanying drawing 3 is the structure chart that welding-on has 4 blocks of carbide alloy on the grooving tool 3, can leave 4 grooves.
During boring, block the flat body portion of grooving tool 3 with special spanner, make it be fixed in certain orientation on demand, drive drill bit 1 by hammer drill by drill steel 2 or 5 and rotate and impact, grooving tool 3 does not rotate with drill steel because sky is enclosed within on drill steel 2 or 5, only withstand shocks by the cover of the impact on convex shoulder on the drill steel 2 or the drill steel 54, after grooving tool 3 enters rock pore, take off special spanner, grooving tool 3 can be left groove by selected direction in the hole, garden.
Claims (2)
1, a kind of being threaded do not have the rod-type of connection slotting drill bit, form by drill bit (1), drill steel (2), grooving tool (3), it is characterized in that: drill steel (2) is gone up the special convex shoulder that goes out, grooving tool (3) sky is enclosed within on the Cylinder of drill steel (2), and drill bit (1) is fixed on the end of drill steel (2) by left-handed corrugated thread.
2, a kind of being threaded do not have the rod-type of connection slotting drill bit, form by drill bit (1), grooving tool (3), drill steel (5), it is characterized in that: drill steel (5) go up be equipped with shrink fit impact cover (4), the empty cover of grooving tool (3) is installed on the Cylinder of drill steel (5), drill bit (1) is fixed on the end of drill steel (5) by left-handed corrugated thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243225 CN2314085Y (en) | 1997-12-16 | 1997-12-16 | Screw connected tranversing drill without connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243225 CN2314085Y (en) | 1997-12-16 | 1997-12-16 | Screw connected tranversing drill without connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314085Y true CN2314085Y (en) | 1999-04-14 |
Family
ID=33952257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97243225 Expired - Fee Related CN2314085Y (en) | 1997-12-16 | 1997-12-16 | Screw connected tranversing drill without connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314085Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697773A (en) * | 2013-11-28 | 2014-04-02 | 河南理工大学 | Directionally-controlled blasting crack prefabrication tool |
| CN115596349A (en) * | 2022-10-20 | 2023-01-13 | 重庆交通大学（Cn） | Drilling and cutting integrated device for rock drill |
-
1997
- 1997-12-16 CN CN 97243225 patent/CN2314085Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697773A (en) * | 2013-11-28 | 2014-04-02 | 河南理工大学 | Directionally-controlled blasting crack prefabrication tool |
| CN103697773B (en) * | 2013-11-28 | 2015-06-17 | 河南理工大学 | Directionally-controlled blasting crack prefabrication tool |
| CN115596349A (en) * | 2022-10-20 | 2023-01-13 | 重庆交通大学（Cn） | Drilling and cutting integrated device for rock drill |
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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 |