CN205189759U - Eccentric hole enlargement drill bit - Google Patents
Eccentric hole enlargement drill bit Download PDFInfo
- Publication number
- CN205189759U CN205189759U CN201520975786.9U CN201520975786U CN205189759U CN 205189759 U CN205189759 U CN 205189759U CN 201520975786 U CN201520975786 U CN 201520975786U CN 205189759 U CN205189759 U CN 205189759U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- drill bit
- gear wheel
- casing
- connector
- 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
Links
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001360 synchronised Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 230000003068 static Effects 0.000 abstract description 5
- 238000002513 implantation Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000005755 formation reaction Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 4
- 241001330002 Bambuseae Species 0.000 abstract 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 4
- 239000011425 bamboo Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000789 fastener Substances 0.000 description 5
- 239000007943 implant Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000036536 Cave Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000003014 reinforcing Effects 0.000 description 2
- 210000000481 Breast Anatomy 0.000 description 1
- UZVHFVZFNXBMQJ-UHFFFAOYSA-N Butalbital Chemical compound CC(C)CC1(CC=C)C(=O)NC(=O)NC1=O UZVHFVZFNXBMQJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses an eccentric hole enlargement drill bit, include: protect a section of thick bamboo and set up the drilling rod in protecting a section of thick bamboo, it is provided with the screw thread and is used for connecting to pass the drilling rod surface of protecting a section of thick bamboo, it is provided with the discharge gate on the terminal surface that passes the drilling rod on the section of thick bamboo to protect, fixedly connected with connecting piece on the other end of drilling rod is provided with three gear wheel on, tilting is through the round pin axle round the connecting piece to the gear wheel, the gear wheel upper end is provided with and is used for spacing buckle, the utility model discloses main to the design of present static pressure implantation means dig the drill bit soon, according to different stratum geological and the general configuration of the earth's surface condition and implantation object, select the device of different functions, flexible package to make things convenient for the construction operation. Can satisfy the active demand that internal construction enterprises handled the hard formation pile foundation engineering construction. Be in international and domestic leading level at present in the aspect of handling civil engineering pile foundation mechanical skill, break the overseas enterprise and monopolize with the price the mechanical skill in this field, fill the domestic gaps.
Description
Technical field
The present invention relates to engineering machinery field, relate to a kind of eccentric diameter-enlarging drill bit specifically.
Technical background
In the prior art, for rig being a very ripe equipment, substantially all adopting same technique revolving in the process of digging, being all drive drilling rod to make drill bit carry out downward rotation by outputting power, thus realizing revolving digging.
Engineering machinery is developed so far, there is very large rig, but most of rig can only realize revolving this work of digging, and other functions can not be realized, just only dig function for revolving at last, current very to rig for revolving in the process of digging how to get rid of the also not good solution of the waste residue excavated.Particularly relate to and revolve the steel plate after digging or the implantation of steel drum static pressure, existing pile driver all adopts hammer to implant by applying external force, and effect is not fine.
At present domestic, international texture stratum for the engineering method of steel sheet pile construction and machinery more, but firm hard formation and sand and gravel stratum only have Japan a at the static-pressure pile planting machine of invention in 1975 for steel sheet pile construction engineering method and equipment.The static-pressure pile planting machine of Japan only plants operation for steel sheet pile, the implantation of, reinforcing bar shaping to larger-diameter stake holes and reinforcing bar implant after deep stratum vibrate helpless, and Spiral digging machine is also substantially helpless for the pore-forming of sand, gravel layer deeper.
Summary of the invention
The object of this invention is to provide eccentric diameter-enlarging drill bit, the application of the invention can realize to sand, gravel deeper layer revolve and dig, revolve the hole of digging out and being greater than drilling rod casing diameter, implant operation for follow-up static pressure.。
To achieve these goals, the present invention adopts following technical scheme:
A kind of eccentric diameter-enlarging drill bit, comprising:
Casing and the drilling rod be arranged in casing,
The axle center of described drilling rod and the axis coinciding of casing and one end of drilling rod are through the end face of casing, and the described drilling rod surface through casing is provided with screw thread for connecting, and described casing is provided with discharging opening through on the end face of drilling rod;
The other end of described drilling rod is fixedly connected with connector, connector is provided with three links, each link is by pinned connection gear wheel, and gear wheel to be done around connector by bearing pin and rotates up and down;
Described gear wheel upper end is provided with for spacing buckle, the lower surface of described casing wall is provided with for fixing spacing draw-in groove,
The end, one end that described drilling rod connects connector is set to the drill bit with drilling rod concentric, and drill bit and drilling rod are fixed as one.
In technique scheme, three link outers of described connector are in circumferentially same, and circle diameter is less than the internal diameter of casing.
In technique scheme, connect three links after gear wheel, under three gear wheel closure states, gear wheel is parallel with casing inwall.
In technique scheme, after launching, the buckle of gear wheel snaps in the spacing draw-in groove of casing wall lower end.
In technique scheme, be in circumferentially same after connecting three links expansion after gear wheel, circumference is greater than the external diameter of casing.
In technique scheme, the gear wheel after expansion, connector, drilling rod and casing are an entirety, follow drilling rod synchronous axial system.
In technique scheme, three links of connector are evenly distributed on circumferentially same.
In technique scheme, drilling rod surface is provided with helical blade
Compared with prior art, beneficial effect of the present invention is:
The present invention implants the churning driven head of means design mainly for current static pressure, the present invention according to Different Strata geology and landforms situation and can implant object, select the device of difference in functionality, flexible assembling, with convenient construction operation (as revolving of this device dig, static pressure, oscillating component function, both can online work in combination, also can disembark and work independently, plant a technique with small space and profundal zone).The active demand of domestic construction enterprises process firm hard formation pile foundation engineering can be met.In process civil engineering pile foundation mechanical technique, be in international and domestic top standard at present, break overseas enterprise to the mechanical technique in this field and price fixing, fill the domestic gaps.Being implanted by hammer pressure mode after avoiding conventional revolving to dig, reducing operational sequence, and improving efficiency of construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional structure schematic diagram of the present invention;
Wherein: 1 is casing, 2 is drilling rods, and 3 is discharging openings, and 4 is connectors, and 5 is helical blades, and 6 is gear wheels.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1 and Figure 2, the present invention includes casing and be arranged on the drilling rod in casing, drilling rod is connected as a whole with inner core.The end face of casing is passed in one end of drilling rod, and the drilling rod surface of extension is provided with screw thread for connecting, and the other end connects drill bit; The inner core end face being connected one end with drilling rod is provided with discharging opening, and the benefit arranged like this makes to revolve the earth that digs out and sandstone can be discharged smoothly by charging aperture.Connect drilling rod one end of drill bit, itself is designed to drill bit, drilling rod is fixedly connected with a connector, connector is provided with three links, the outer of three links is in circumferentially same, and the internal diameter that the diameter of circumference is less than casing is, and whole connector is all arranged in casing.Each link is by pinned connection gear wheel, and gear wheel can be rotated around link up and down by bearing pin.In order to avoid the unconfined movement of drill bit, therefore on inner core lower end, be provided with stopper slot, gear wheel is provided with limit fastener, gear wheel is crossed limit fastener and is snapped in the stopper slot of inner core.Like this, when drilling rod is moved downward by driven by motor, three gear wheels of lower end will be stuck in the lower end of inner core, and this just makes three gear wheels be fixed on the surrounding of drilling rod uniformly like this, and complete to revolve and dig.
In the present invention, gear wheel has two kinds of mode of operations, when drill bit carry out pressing down get into the cave time, because be subject to the resistance on ground, gear wheel can outwards rotate, when the dynamic limit fastener of gear wheel rotation snaps in spacing draw-in groove, stop operating, this time, three gear wheels formed the circle that a diameter is greater than casing, when drill bit starts to get into the cave, so three gear wheels dig residing circumferentially synchronous just to revolve earth.Because gear wheel carries out clamping by limit fastener, be not be completely fixed motionless, therefore gear wheel is being subject to ground resistance upwards simultaneously, also be subject to the pressure that casing wall is downward, therefore effect that the earth dug is subject to these power will directly be pushed in casing to make gear wheel revolve, and sends discharging opening by helical blade.
When drill bit stops getting into the cave downwards, oppositely upwards rotate, gear wheel is no longer subject to thrust upwards, and according to the gravity of self, the spacing draw-in groove on the limit fastener on gear wheel and casing wall will be separated from each other.Last gear wheel can be retracted in casing completely, makes gear wheel and casing inwall be in parastate.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an eccentric diameter-enlarging drill bit, is characterized in that comprising:
Casing and the drilling rod be arranged in casing,
The axle center of described drilling rod and the axis coinciding of casing and one end of drilling rod are through the end face of casing, and the described drilling rod surface through casing is provided with screw thread for connecting, and described casing is provided with discharging opening through on the end face of drilling rod;
The other end of described drilling rod is fixedly connected with connector, connector is provided with three links, each link is by pinned connection gear wheel, and gear wheel to be done around connector by bearing pin and rotates up and down;
Described gear wheel upper end is provided with for spacing buckle, the lower surface of described casing wall is provided with for fixing spacing draw-in groove,
The end, one end that described drilling rod connects connector is set to the drill bit with drilling rod concentric, and drill bit and drilling rod are fixed as one.
2. the eccentric diameter-enlarging drill bit of one according to claim 1, it is characterized in that three link outers of described connector are in circumferentially same, circle diameter is less than the internal diameter of casing.
3. the eccentric diameter-enlarging drill bit of one according to claim 2, it is characterized in that three links after connecting gear wheel, under three gear wheel closure states, gear wheel is parallel with casing inwall.
4. the eccentric diameter-enlarging drill bit of one according to claim 3, the buckle that it is characterized in that launching rear gear wheel snaps in the spacing draw-in groove of casing wall lower end.
5. the eccentric diameter-enlarging drill bit of one according to claim 4, be in circumferentially same after it is characterized in that three links expansion after connecting gear wheel, circumference is greater than the external diameter of casing.
6. the eccentric diameter-enlarging drill bit of one according to claim 5, is characterized in that gear wheel, connector, drilling rod and casing after launching are an entirety, follows drilling rod synchronous axial system.
7. the eccentric diameter-enlarging drill bit of according to claims 1 to 6 any, is characterized in that three links of connector are evenly distributed on circumferentially same.
8. any eccentric diameter-enlarging drill bit according to claim 7, is characterized in that drilling rod surface is provided with helical blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975786.9U CN205189759U (en) | 2015-12-01 | 2015-12-01 | Eccentric hole enlargement drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975786.9U CN205189759U (en) | 2015-12-01 | 2015-12-01 | Eccentric hole enlargement drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189759U true CN205189759U (en) | 2016-04-27 |
Family
ID=55782759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520975786.9U Expired - Fee Related CN205189759U (en) | 2015-12-01 | 2015-12-01 | Eccentric hole enlargement drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205189759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107182373A (en) * | 2017-08-01 | 2017-09-22 | 北京林业大学 | Plant seedlings centrifugal diameter changing drilling tool in the rock of stony desert area |
-
2015
- 2015-12-01 CN CN201520975786.9U patent/CN205189759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107182373A (en) * | 2017-08-01 | 2017-09-22 | 北京林业大学 | Plant seedlings centrifugal diameter changing drilling tool in the rock of stony desert area |
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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: 20160427 Termination date: 20161201 |