CN206636511U - A kind of churning self-feeding bit - Google Patents
A kind of churning self-feeding bit Download PDFInfo
- Publication number
- CN206636511U CN206636511U CN201720258583.7U CN201720258583U CN206636511U CN 206636511 U CN206636511 U CN 206636511U CN 201720258583 U CN201720258583 U CN 201720258583U CN 206636511 U CN206636511 U CN 206636511U
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- rod
- drill bit
- churning
- anchor cable
- self
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Abstract
The utility model provides a kind of churning self-feeding bit, plug including the drill bit body of rod and drill bit rod end, it is characterized in that, the churning self-feeding bit also includes back-up ring, bearing and anchor cable loading plate, hollow flow beam passage is provided with the drill bit shaft body, the drill bit body of rod is provided with nozzle, the nozzle connects with hollow flow beam passage, the drill bit body of rod afterbody forms limiting stand terrace, the drill bit body of rod afterbody is arranged with back-up ring and bearing successively, the back-up ring offsets with step surface, it is anterior that the anchor cable loading plate is arranged on back-up ring, the anchor cable loading plate is used to load anchor cable bar, during the churning self-feeding bit rotation, anchor cable loading plate does not follow rotation.Drilling rod rotation when the utility model can make drill bit churning and the anchor cable body of rod will not rotate, the anchor cable body of rod is followed up with drilling rod straight line.This practicality newly solves well takes the anchor cable body of rod this serious problems out of when drill bit is retracted.
Description
Technical field
It the utility model is related to underground foundation facility, construction equipment manufacturing field, more particularly to a kind of anchor cable construction
In churning self-feeding bit.
Background technology
As requirement of the expansion and country of underground foundation facility construction scope to Energy Conservation Green Construction improves, its anchor cable work
Skill is more and more extensive using the moon in pattern foundation pit supporting structure, and the especially appearance of Recyclable anchor rope building material is even more and substantially increased
The secondary use rate of product, saves the duration of a project, reduces construction costs, reduces building dust and noise pollution.
But, real stream line generally requires drilling rod and heads into construction（Pass through the special drill bit churning top of drilling rod front end
Enter）, can prior art self-advancing type drill bit in anchor cable jacking often with anchor cable body of rod coil buckling together with, finally cause
Anchor cable construction quality reduces or the anchor cable body of rod is directly portalled by drill bit whole band when drilling rod is retracted after the completion of anchor cable construction
Outside mouthful, it can not construct at all.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of churning self-advancing type with the follow-up of drilling rod straight line and bored
Head.Therefore, the utility model provides following technical scheme：
A kind of churning self-feeding bit, including the plug of the drill bit body of rod and drill bit rod end, the churning self-advancing type bore
Head also includes back-up ring, bearing and anchor cable loading plate, is provided with hollow flow beam passage in the drill bit shaft body, the drill bit body of rod is provided with
Nozzle, the nozzle connect with hollow flow beam passage, and the drill bit body of rod afterbody forms limiting stand terrace, the drill bit body of rod tail
Portion is arranged with back-up ring and bearing successively, and the back-up ring offsets with step surface, and the anchor cable loading plate is arranged on back-up ring front portion, described
Anchor cable loading plate is used to load anchor cable bar, and when the churning self-feeding bit rotates, anchor cable loading plate does not follow rotation.Bearing
When rationally setting causes bit, the anchor cable loading plate does not rotate and then together.And the reasonable setting of limiting stand terrace, make
Drill bit body of rod afterbody part rationally arrange save space.
On the basis of using above-mentioned technical proposal, the utility model can also use technical scheme further below：
The drill bit shaft outside is inclined-plane, and its gradient is 0.1% -30%, beneficial to the advance of the drill bit body of rod.
The drill bit body of rod is provided with least two nozzles, and the ejection orifice angle and the body of rod of the nozzle are at a right angle or oblique
Angle, can meet the needs of different construction.
The bearing is that the factor such as plain thrust bearing or cone bearing, the environment entered according to drill bit, resistance selects not
Same bearing is coordinated.
The back-up ring is slided for annular cam, and anchor cable loading plate is provided with the annular cam slide closing in.It is so that each
Individual part all in one plane, reduces the resistance that drill bit advances.
Described kind of churning self-feeding bit is additionally provided with lengthening joint, and the lengthening joint is installed in the drill bit body of rod tail end
And offseted with bearing, the lengthening joint is used for drilling rod and lengthens connection.
The firm head of alloy is equiped with the front end of the plug, increases the robustness of drill bit.
Due to being using the technical solution of the utility model, the beneficial effects of the utility model：The utility model can make brill
Drilling rod rotates during head churning and the anchor cable body of rod will not rotate, and the anchor cable body of rod is followed up with drilling rod straight line.This practicality is new good
Solve and take the anchor cable body of rod this serious problems when drill bit is retracted out of.
Brief description of the drawings
Fig. 1 is a kind of churning self-feeding bit sectional view provided by the utility model.
Embodiment
As illustrated, a kind of churning self-feeding bit, including the plug 2 of the drill bit body of rod 5 and drill bit rod end, it is described stifled
Alloy firm first 1 is equiped with the front end of head, increases the robustness of drill bit.Lead in the drill bit body of rod 5 provided with hollow a fluid stream
The lateral surface of the drill bit body of rod 5 described in road 3. is oblique, angle as shown in Figure 6, and its gradient is 0.1% -30%, beneficial to the drill bit body of rod 5
Advance.
The drill bit body of rod 5 is provided with nozzle 4, and the nozzle 4 connects with hollow flow beam passage 3, is set on the drill bit body of rod 5
There are at least two nozzles 4, the ejection orifice angle of the nozzle 4 and the body of rod 5 be at a right angle or oblique angle, can meet different construction
Demand.
The afterbody of the drill bit body of rod 5 forms limiting stand terrace 50, and the drill bit body of rod afterbody is arranged with back-up ring 7 and axle successively
8 are held, the back-up ring 7 offsets with step surface 50, and the anchor cable loading plate 10 is arranged on the front portion of back-up ring 7, the anchor cable loading plate 10
For loading anchor cable bar 11.During the churning self-feeding bit rotation, anchor cable loading plate 10 does not follow rotation.The back-up ring 7 is
Annular cam is slided, and anchor cable loading plate 10 is provided with the annular cam slide closing in so that all parts are all flat at one
On face, the resistance that drill bit advances is reduced.
When the reasonable setting of the bearing 8 causes bit, the anchor cable loading plate 10 does not rotate and then together.And limit
The reasonable setting of position step surface 50 so that the part of drill bit body of rod afterbody, which is rationally arranged, saves space.
The bearing 8 is that the factor such as plain thrust bearing or cone bearing, the environment entered according to drill bit, resistance selects not
Same bearing 8 is coordinated.
Described kind of churning self-feeding bit is additionally provided with lengthening joint 9, and the lengthening joint 9 is installed in the drill bit body of rod 5
Tail end simultaneously offsets with bearing 8, and the lengthening joint 9 is used for drilling rod and lengthens connection.
Claims (7)
1. a kind of churning self-feeding bit, including the plug of the drill bit body of rod and drill bit rod end, it is characterised in that the churning
Self-feeding bit also includes back-up ring, bearing and anchor cable loading plate, and hollow flow beam passage, the drill bit are provided with the drill bit shaft body
The body of rod is provided with nozzle, and the nozzle connects with hollow flow beam passage, and the drill bit body of rod afterbody forms limiting stand terrace, the brill
Head rod body afterbody is arranged with back-up ring and bearing successively, and the back-up ring offsets with step surface, and the anchor cable loading plate is arranged on back-up ring
Front portion, the anchor cable loading plate are used to load anchor cable bar, and when the churning self-feeding bit rotates, anchor cable loading plate does not follow rotation
Turn.
2. a kind of churning self-feeding bit as claimed in claim 1, it is characterised in that the drill bit shaft outside is oblique
Face, its gradient are 0.1% -30%.
3. a kind of churning self-feeding bit as claimed in claim 1, it is characterised in that the drill bit body of rod is provided with least two
Individual nozzle, the ejection orifice angle of the nozzle and the body of rod be at a right angle or oblique angle.
A kind of 4. churning self-feeding bit as claimed in claim 1, it is characterised in that the bearing be plain thrust bearing or
Cone bearing.
A kind of 5. churning self-feeding bit as claimed in claim 1, it is characterised in that the back-up ring is slided for annular cam,
Anchor cable loading plate is provided with the annular cam slide closing in.
6. a kind of churning self-feeding bit as described in claim 1,2 or 3, it is characterised in that described kind of churning self-advancing type bores
Head is additionally provided with lengthening joint, and the lengthening joint is installed in the drill bit body of rod tail end and offseted with bearing, the lengthening joint
Lengthen and connect for drilling rod.
7. a kind of churning self-feeding bit as claimed in claim 1, it is characterised in that conjunction is equiped with the front end of the plug
Buddha's warrior attendant head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720258583.7U CN206636511U (en) | 2017-03-17 | 2017-03-17 | A kind of churning self-feeding bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720258583.7U CN206636511U (en) | 2017-03-17 | 2017-03-17 | A kind of churning self-feeding bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636511U true CN206636511U (en) | 2017-11-14 |
Family
ID=60249402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720258583.7U Active CN206636511U (en) | 2017-03-17 | 2017-03-17 | A kind of churning self-feeding bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503171A (en) * | 2021-08-11 | 2021-10-15 | 中电建路桥集团有限公司 | Guiding self-drilling type pipe shed steel pipe device for tunnel excavation and construction method |
-
2017
- 2017-03-17 CN CN201720258583.7U patent/CN206636511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503171A (en) * | 2021-08-11 | 2021-10-15 | 中电建路桥集团有限公司 | Guiding self-drilling type pipe shed steel pipe device for tunnel excavation and construction method |
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