CN203066864U - Rear broaching drill bit - Google Patents
Rear broaching drill bit Download PDFInfo
- Publication number
- CN203066864U CN203066864U CN 201320004602 CN201320004602U CN203066864U CN 203066864 U CN203066864 U CN 203066864U CN 201320004602 CN201320004602 CN 201320004602 CN 201320004602 U CN201320004602 U CN 201320004602U CN 203066864 U CN203066864 U CN 203066864U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- slide block
- hollow
- reaming
- 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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Abstract
The utility model discloses a rear broaching drill bit which comprises a drill stem component and a drill bit component. The rear broaching drill bit is characterized in that the drill stem component comprises a drill stem handle, a sliding block groove body, a sliding block, a sealing blocking circular ring, a drill stem, a bearing component, a small lock nut, a big lock nut and an ejector rod. The drill bit component comprises a drill bit body, movable broaching cutter heads, pin shafts and a welding cutter head. The drill stem component is connected with the drill bit component through screw threads. The drill stem handle is provided with a hollow accommodating cavity. The sliding block groove body is located in the hollow accommodating cavity of the drill stem handle. The sliding block groove body is of a hollow cylindrical structure provided with a sliding groove. The sliding block is embedded in the sliding groove and is locked through the sealing blocking circular ring. A screw hole is formed in the sliding block, and a lead screw is arranged on the drill stem which is of a hollow circular pipe structure. The bearing component, the small lock nut and the big lock nut are sleeved on the lead screw of the drill stem in sequence. The drill stem is connected in the screw hole of the sliding block through the lead screw. The ejector rod penetrates through a hollow inner hole of the drill stem. One end of the drill bit body is of a hollow structure, broaching cutter head grooves are arranged on two sides of the drill bit body, and the welding cutter head is fixedly arranged at the other end of the drill bit body. The movable broaching cutter heads are arranged in the broaching cutter head grooves through the pin shafts.
Description
Technical field
The utility model relates to a kind of electric tools accessory, relates in particular to a kind of back reaming bit for the anchoring borehole engineering.
Background technology
Application is comparatively general in the installing and fixing of back anchoring high capacity such as fixing and heavy duty equipment at road, railway, bridge, Steel Structure Installation, wherein Zuan Kong quality directly has influence on anchorage engineering quality, existing boring bar tool mostly is electric tools greatly and adds back reaming bit composition, and existing back reaming bit mostly is imported product greatly, its complex structure, the time-consuming effort of installing/dismounting, drilling efficiency is low, and the manufacturing cost height.
Given this, be necessary to provide a kind of new back reaming bit to solve above-mentioned technical problem.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of installation quick and convenient, and reaming is effective, and speed is fast, simple and reasonable back reaming bit.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of back reaming bit, comprise: drill rod assemblies, drill bit assembly is characterized in that: described drill rod assemblies comprises: drilling rod handle, slide block cell body, slide block, block annulus, drilling rod, bearing assembly, little locknut, big locknut, push rod; Described drill bit assembly comprises: bit body, movable reaming cutter, bearing pin, welding cutter head; Described drill rod assemblies and drill bit assembly are by screwed connection, described drilling rod handle is provided with the hollow container cavity, the slide block slot body is positioned at the hollow container cavity of drilling rod handle, described slide block cell body is the hollow cylindrical structure that is provided with chute, described slide block is embedded in the chute, lock by the block annulus, be provided with screw hole in the described slide block, described drilling rod is provided with screw mandrel, be the hollow circular tube structure, described bearing assembly, little locknut, big locknut are sheathed on the screw mandrel of drilling rod successively, and drilling rod is connected in by screw mandrel in the screw hole of slide block, and described push rod runs through the hollow endoporus by drilling rod; Described bit body one end is hollow structure, and both sides are provided with the reaming cutter groove, other end fixed installation welding cutter head, and described movable reaming cutter is installed in the reaming cutter groove by bearing pin.
As the further improvement of the technical program, described push rod one end has the conical surface.
As the further improvement of the technical program, described movable reaming cutter can rotate a certain angle to both sides.
As the further improvement of the technical program, described chute is spiral shaped openings, and described slide block can be mobile along the chute rotation.
Compared with prior art, the drill bit assembly of reaming bit is changed conveniently behind the utility model, installs fast, and reaming is effective, and speed is fast, and is simple and practical, can enhance productivity greatly.
[description of drawings]
Fig. 1 is the decomposing schematic representation of back described in the utility model reaming bit.
Fig. 2 is the merging phase cross-sectional schematic of back described in the utility model reaming bit.
Fig. 3 is the reaming state cross-sectional schematic of back described in the utility model reaming bit.
[specific embodiment]
See also Fig. 1-shown in Figure 3, the utility model provides a kind of back reaming bit, comprise: drill rod assemblies 1, drill bit assembly 2 is characterized in that: described drill rod assemblies comprises: drilling rod handle 10, slide block cell body 11, slide block 12, block annulus 13, drilling rod 14, bearing assembly 15, little locknut 16, big locknut 17, push rod 18; Described drill bit assembly comprises: bit body 20, movable reaming cutter 21, bearing pin 22, welding cutter head 23.
Described drill rod assemblies 1 is crossed screwed connection with drill bit assembly logical 2, described drilling rod handle 10 is provided with the hollow container cavity, slide block cell body 11 is positioned at the hollow container cavity of drilling rod handle 10, described slide block cell body 11 is for being provided with the hollow cylindrical structure of chute 110, described slide block is embedded in the slide block cell body 11, by 13 lockings of block annulus, be provided with screw hole in the described slide block 12, described drilling rod 14 is provided with screw mandrel, be the hollow circular tube structure, described bearing assembly 15, little locknut 16, big locknut 17 is sheathed on the screw mandrel of drilling rod 14 successively, and drilling rod 14 is connected in by screw mandrel in the screw hole of slide block 12, and described push rod 18 runs through the hollow endoporus by drilling rod 14; One end of described bit body 20 is hollow structure, and both sides are provided with reaming cutter groove 24, other end fixed installation welding cutter head 23, and described movable reaming cutter 21 is installed in the reaming cutter groove 24 by bearing pin 22.Described push rod 18 1 ends have the conical surface, and described chute 24 is two spiral shaped openings, and described slide block 12 can be mobile along the chute rotation.
In use, drill rod assemblies 1 is installed: slide block cell body 11 is placed in the empty container cavity of drilling rod handle 10, slide block 12 is embedded in the chute along chute 110, the block annulus is screwed; Then bearing assembly, little locknut, big locknut are sheathed on the screw mandrel of drilling rod successively, push rod is passed the hollow endoporus of drilling rod, then screw mandrel is connected in the screw hole of slide block; Described bit body one end is hollow structure, and both sides are provided with the reaming cutter groove, other end fixed installation welding cutter head, and described movable reaming cutter is installed in the reaming cutter groove by bearing pin.
Drill bit assembly 2 is installed: welding cutter head 23 is welded in the solid end of bit body 20, and movable reaming cutter 21 is installed in the reaming cutter groove 24 by bearing pin 22.
With mounted drill bit assembly 2 and drill rod assemblies 1 by screwed connection, then drilling rod handle 10 is fit into and namely can be used for boring in the claw of electric tools, earlier drilling rod 14 is utilized little locknut 16, big locknut 17 chuckings, push rod 18 does not travel forward, at this moment movable reaming cutter 21 is in merging phase, utilize 23 borings of welding cutter head, after the degree of depth that reaches certain of holing, rotate little locknut 16, big locknut 17, drilling rod 14 rotations promote push rod 18 and travel forward, utilize the conical surface of push rod 18 that reaming cutter 21 is expanded to two sideway swivels, the expansion of will holing, reach suitable size after, the reverse rotation drilling tool, make push rod 18 mobile backward, movable reaming cutter 21 merges, and withdraws from drill bit, finishes whole reaming process.
Back described in the utility model reaming bit, drill bit assembly is changed convenient, installs fast, and reaming is effective, and speed is fast, and is simple and practical, can enhance productivity greatly.
The above; it only is most preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; any those of ordinary skill in the art; do not breaking away under the technical solutions of the utility model scope situation; utilize the method content of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, all belong to the scope of claims protection.
Claims (3)
1. reaming bit after a kind, comprising: drill rod assemblies, drill bit assembly is characterized in that: described drill rod assemblies comprises: drilling rod handle, slide block cell body, slide block, block annulus, drilling rod, bearing assembly, little locknut, big locknut, push rod; Described drill bit assembly comprises: bit body, movable reaming cutter, bearing pin, welding cutter head; Described drill rod assemblies and drill bit assembly are by screwed connection, described drilling rod handle is provided with the hollow container cavity, the slide block slot body is positioned at the hollow container cavity of drilling rod handle, described slide block cell body is the hollow cylindrical structure that is provided with chute, described slide block is embedded in the chute, lock by the block annulus, be provided with screw hole in the described slide block, described drilling rod is provided with screw mandrel, be the hollow circular tube structure, described bearing assembly, little locknut, big locknut are sheathed on the screw mandrel of drilling rod successively, and drilling rod is connected in by screw mandrel in the screw hole of slide block, and described push rod runs through the hollow endoporus by drilling rod; Described bit body one end is hollow structure, and both sides are provided with the reaming cutter groove, other end fixed installation welding cutter head, and described movable reaming cutter is installed in the reaming cutter groove by bearing pin.
2. back according to claim 1 reaming bit, it is characterized in that: described push rod one end has the conical surface, and described movable reaming cutter can rotate a certain angle to both sides.
3. back according to claim 2 reaming bit, it is characterized in that: described chute is spiral shaped openings, described slide block can be mobile along the chute rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004602 CN203066864U (en) | 2013-01-06 | 2013-01-06 | Rear broaching drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004602 CN203066864U (en) | 2013-01-06 | 2013-01-06 | Rear broaching drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066864U true CN203066864U (en) | 2013-07-17 |
Family
ID=48765674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004602 Expired - Fee Related CN203066864U (en) | 2013-01-06 | 2013-01-06 | Rear broaching drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712251A (en) * | 2015-03-16 | 2015-06-17 | 中铁第四勘察设计院集团有限公司 | Pedestal drill and method for conducting concrete structure rear anchorage through same |
| CN109681135A (en) * | 2019-03-04 | 2019-04-26 | 重庆工程职业技术学院 | A kind of coal mine gallery drilling rig construction drilling rod handler |
-
2013
- 2013-01-06 CN CN 201320004602 patent/CN203066864U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712251A (en) * | 2015-03-16 | 2015-06-17 | 中铁第四勘察设计院集团有限公司 | Pedestal drill and method for conducting concrete structure rear anchorage through same |
| CN109681135A (en) * | 2019-03-04 | 2019-04-26 | 重庆工程职业技术学院 | A kind of coal mine gallery drilling rig construction drilling rod handler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20140106 |