CN205047161U - Dig soon and expand subdrilling head - Google Patents

Dig soon and expand subdrilling head Download PDF

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Publication number
CN205047161U
CN205047161U CN201520774100.XU CN201520774100U CN205047161U CN 205047161 U CN205047161 U CN 205047161U CN 201520774100 U CN201520774100 U CN 201520774100U CN 205047161 U CN205047161 U CN 205047161U
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China
Prior art keywords
drill bit
bit
wing
drill
expanding
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Application number
CN201520774100.XU
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Chinese (zh)
Inventor
孔秋平
张强
邱维衍
陈万琴
江景云
熊春煌
郑添寿
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FUJIAN YONGQIANG GEOTECHNICAL Co Ltd
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FUJIAN YONGQIANG GEOTECHNICAL Co Ltd
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Priority to CN201520774100.XU priority Critical patent/CN205047161U/en
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Publication of CN205047161U publication Critical patent/CN205047161U/en
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Abstract

The utility model provides a dig soon and expand subdrilling head, its characterized in that: it includes: the drill bit connects (1), drilling rod (3), drill bit barrel (4), expands the wing (5), connecting rod (6), drilling rod two (7), drill bit bill kept on file move part (8), pneumatic cylinder (9) are constituteed, the drill bit barrel is the great simple structure of rigidity, and its size does not change along with the change of weight on bit, and it is articulated with the bit body to expand wing upper end, and the lower extreme is articulated with the connecting rod, when the weight on bit through drilling rod, connecting rod conduction when expanding the wing, expand the wing and open around last hinge point, through the same cutting utensil cutting earth's surface of expanding the wing outside of welding -on, end purpose is expanded on the realization stratum.

Description

One is revolved and is dug bottom expanding drill
Technical field
The utility model relates to Construction of Civil Engineering field, particularly relates to one and revolves and dig bottom expanding drill.
Background technology
Relatively large owing to expanding end formation hardness, namely the expansion end will creep into and will expand the end simultaneously, there is the problem of many technology and cost aspect, common practices at the bottom of current expansion is: the construction first completing straight hole, the ultimate depth of design or the stratum meeting requirement of strength of design proposition is directly drilled into by straight hole section, no longer creep into along depth direction when expanding end operation, but start operation at the bottom of horizontal expansion in this degree of depth.When laterally expanding the end, because of forming free face in the earth formation, and the position formation integrity expanding the end relative to middle weathering or gentle breezeization poor, now the expansion end, correspondingly just seems easier.And device at the bottom of most expansion is " one " font reamer, each section, expanding the wing need cut same profile soil layer through 180 ° of ability, and reaming efficiency is relatively low, and the consumption of expansion end device consumption gear is large.
Summary of the invention
The purpose of this utility model overcomes above-mentioned defect, provides one to revolve and dig bottom expanding drill, is " ten " font reamer, through 90 ° of machinable same profile soil layers, is suitable for expanding end earth-boring and applies with the expansion end.
The utility model solves the problems of the technologies described above by the following technical solutions:
One is revolved and is dug bottom expanding drill, it is characterized in that: it comprises: bit adapter, drilling rod one, drill bit cylindrical shell, the expansion wing, connecting rod, drilling rod two, the dynamic part composition of drill bit bill kept on file; Described bit adapter and drilling rod one are connected, and are connected with rig by bayonet joint; Described drill bit cylindrical shell is connected with connecting rod indirectly by expanding the wing; Described expansion wing hinge joint is connected with drill bit cylindrical shell, connecting rod; Described drilling rod two is installed in drill bit cylindrical shell; Drilling rod two is fixedly connected with drill bit, and described drill bit bill kept on file moves part as the guiding of drilling rod one, location and part load transfer device, and the dynamic part of drill bit bill kept on file provides fulcrum with drill bit, guarantee bottom expanding drill at rotary operation time, there is not horizontal movement.
Preferably, bit adapter is provided with hydraulic part;
Preferably, described drilling rod one is provided with limited block;
Preferably, drill bit cylindrical shell can have the scope of activities of certain amplitude up and down;
Preferably, revolve and dig bottom expanding drill and be provided with multiple expansion wing, in cross.
The invention has the beneficial effects as follows:
There is provided one to revolve and dig bottom expanding drill, drill bit cylindrical shell is the simple structure that rigidity is larger, its size does not change with the change of the pressure of the drill, expand wing upper end and bit body hinged, lower end and rod hinge connection, when the pressure of the drill conducts to expand the wing through drilling rod, connecting rod, expand the wing and open around upper hinge, agreed to the cutting element cutting earth's surface expanded outside the wing by welding-on, realize object at the bottom of the expansion of stratum.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1 is that a kind of revolving at the bottom of the expansion of digging bottom expanding drill of the present utility model completes figure;
Fig. 2 is of the present utility model a kind ofly to revolve at the bottom of the expansion of digging bottom expanding drill with regard to bitmap;
Fig. 3 of the present utility modelly a kind ofly revolves the top view digging bottom expanding drill.
As scheme identify: bit adapter 1, limited block 2, drilling rod 1, drill bit cylindrical shell 4, expand the wing 5, connecting rod 6, drilling rod 27, drill bit bill kept on file move part 8, hydraulic cylinder 9.
Detailed description of the invention
As shown in Figure 1, one is revolved and is dug bottom expanding drill, it is characterized in that: it comprises: bit adapter 1, drilling rod 1, drill bit cylindrical shell 4, expand the wing 5, connecting rod 6, drilling rod 27, drill bit bill kept on file moves part 8, hydraulic cylinder 9 forms; Described bit adapter 1 is connected with drilling rod 1, is connected with rig by bayonet joint; Described drill bit cylindrical shell 4 is connected with connecting rod 6 indirectly by expanding the wing 5; The described expansion wing 5 hinge joint and drill bit cylindrical shell 4, connecting rod 6 are connected; Described drilling rod 27 is installed in drill bit cylindrical shell 4; Drilling rod 27 is fixedly connected with drill bit, and described drill bit bill kept on file moves part 8 as the guiding of drilling rod 1, location and part load transfer device, and drill bit bill kept on file moves part 8 and provides fulcrum with drill bit, guarantee bottom expanding drill at rotary operation time, there is not horizontal movement; Described hydraulic cylinder 9 is located at below bit adapter 1, coordinates install with drill bit cylindrical shell 4.
Bottom expanding drill can multi-form under enter to boring the end after, single acting device be depressed into hard stratum, because single acting device does not arrange cutting cutlery, itself, no longer with bit, also just makes drill bit no longer move downward, for drill bit expand the end operation fulcrum is provided; On bit adapter, hydraulic cylinder 9 promotes drilling rod downwards, drill bit conducts downwards through kelly, drilling rod 1 is reached by plug-in type street corner, by connecting rod 6, the expansion wing 5 is strutted again, by rotary drilling-head, the Rock And Soil expanding the cutting cutlery cutting surrounding of the wing 5 outer, when the expansion end, reaches designing requirement, the limited block 2 pre-set on ground, make pressure conduction on drill bit cylindrical shell 3, no longer effect is with on the expansion wing 5, now increases the pressure of the drill and drill bit entirety can only be made stressed, strengthen the burden of single action body, unhelpful in the expansion end, so far expand bear building-up bundle; Once expanding basic skill or training's work for completing, realizing object at the bottom of the expansion of stratum.
Above-described embodiment, the just one of the utility model more preferably detailed description of the invention, the usual change that those skilled in the art carries out within the scope of technical solutions of the utility model and replacing all should be included in protection domain of the present utility model.

Claims (4)

1. revolve and dig a bottom expanding drill, it is characterized in that: it comprises: bit adapter (1), drilling rod one (3), drill bit cylindrical shell (4), the expansion wing (5), connecting rod (6), drilling rod two (7), the dynamic part (8) of drill bit bill kept on file, hydraulic cylinder (9) composition; Described bit adapter (1) and drilling rod one (3) are connected, and are connected with rig by bayonet joint; Described drill bit cylindrical shell (4) is connected with connecting rod (6) indirectly by expanding the wing (5); The described expansion wing (5) hinge joint and drill bit cylindrical shell (4), connecting rod (6) are connected; Described drilling rod two (7) is installed in drill bit cylindrical shell (4); Drilling rod two (7) is fixedly connected with drill bit, the dynamic part (8) of described drill bit bill kept on file is as the guiding of drilling rod one (3), location and part load transfer device, the dynamic part (8) of drill bit bill kept on file provides fulcrum with drill bit, described hydraulic cylinder (9) is located at bit adapter (1) below, coordinates install with drill bit cylindrical shell (4).
2. one according to claim 1 is revolved and is dug bottom expanding drill, it is characterized in that: described bit adapter (1) is provided with hydraulic part.
3. one according to claim 1 is revolved and is dug bottom expanding drill, it is characterized in that: described drilling rod one (3) is provided with limited block (2).
4. one according to claim 1 is revolved and is dug bottom expanding drill, it is characterized in that: revolve and dig bottom expanding drill and be provided with multiple expansion wing (5), in cross.
CN201520774100.XU 2015-10-08 2015-10-08 Dig soon and expand subdrilling head Active CN205047161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520774100.XU CN205047161U (en) 2015-10-08 2015-10-08 Dig soon and expand subdrilling head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520774100.XU CN205047161U (en) 2015-10-08 2015-10-08 Dig soon and expand subdrilling head

Publications (1)

Publication Number Publication Date
CN205047161U true CN205047161U (en) 2016-02-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520774100.XU Active CN205047161U (en) 2015-10-08 2015-10-08 Dig soon and expand subdrilling head

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CN (1) CN205047161U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696945A (en) * 2016-03-13 2016-06-22 彭宝安 Punching drilling machine drill bit with drilling diameter enlargeable
CN107227733A (en) * 2017-06-29 2017-10-03 中国冶集团有限公司 A kind of bored concrete pile steel reinforcement cage cutting method under water
CN109692981A (en) * 2019-03-04 2019-04-30 李吴军 A kind of Counterboring apparatus of machine workpieces blind hole
CN109773230A (en) * 2019-03-04 2019-05-21 李吴军 A kind of expanding method of machine workpieces blind hole

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696945A (en) * 2016-03-13 2016-06-22 彭宝安 Punching drilling machine drill bit with drilling diameter enlargeable
CN105696945B (en) * 2016-03-13 2018-05-25 青岛蓝天创先科技服务有限公司 The punching drill bit of drilling machine of bore diameter can be expanded
CN107227733A (en) * 2017-06-29 2017-10-03 中国冶集团有限公司 A kind of bored concrete pile steel reinforcement cage cutting method under water
CN109692981A (en) * 2019-03-04 2019-04-30 李吴军 A kind of Counterboring apparatus of machine workpieces blind hole
CN109773230A (en) * 2019-03-04 2019-05-21 李吴军 A kind of expanding method of machine workpieces blind hole
CN109773230B (en) * 2019-03-04 2021-05-04 诸暨迅超工业设计有限公司 Hole expanding method for blind hole of machined workpiece

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