CN207393122U - A kind of combined type reaming bit - Google Patents
A kind of combined type reaming bit Download PDFInfo
- Publication number
- CN207393122U CN207393122U CN201721467728.0U CN201721467728U CN207393122U CN 207393122 U CN207393122 U CN 207393122U CN 201721467728 U CN201721467728 U CN 201721467728U CN 207393122 U CN207393122 U CN 207393122U
- Authority
- CN
- China
- Prior art keywords
- reaming
- connector sleeve
- reamer
- away
- guide part
- 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 kind of combined type reaming bits, including guide part and reamer, several pieces of limited blocks are fixed on guide part periphery wall, reamer includes connector sleeve and the reamer components on connector sleeve periphery wall, connector sleeve is in hollow setting, and the limiting slot of several bending settings is equidistantly offered on the internal perisporium of connector sleeve one end around connector sleeve central axes, connector sleeve other end internal whorl is equipped with limited post.Limited block on guide part is slided into limiting slot, and guide part is pushed against limiting slot end by limited post, and guide part is made not to be subjected to displacement in connector sleeve axis direction with connector sleeve.Be not in the problem of guide part the more revolves the more tight and causes later stage dismounting difficult with reamer so as to the rotation with the device in soil layer.
Description
Technical field
The utility model is related to drill bits, and in particular to a kind of combined type reaming bit.
Background technology
With the increasing of highway, the energy, infrastructure construction dynamics, in energy extraction, underground foundation Facilities Construction, expand
For drill due to the design feature of its own, application prospect is more and more extensive；Supporting in tunnel at present, in infrastructure projects
In the applications such as pipeline laying, because of geological structure and the particularity of construction, it need to be drilled using borehole-enlarging drilling tool；In the borehole, lead
To one pilot hole of drill bit elder generation Drilling, play positioning and be easy to use reaming bit reaming, be conducive to being smoothed out for drilling.
At present, in the market used reaming bit by a starter and a reaming bit combine assembling and
Into.It, can and use environment complicated because of geological structure because starter plays the role of drawing brill and guiding simultaneously in drilling process
It is different and wear aggravation or directly damage, need to be used when replacing starter specially take pricker instrument that could unload reaming bit
Under, drilling efficiency low the problems such as inconvenient there are bit change-over.
Such as the Chinese patent application that Authorization Notice No. is CN206233865U, patent application publication combined type reamer
Head sets the female company of guiding including female drill bit, reaming bit, one end is set to be provided with the external screw thread other end
Device is connect, reaming bit is connected with guided connector by taper, and drill bit is provided with externally threaded one end with guided connector and is connected,
Guided connector sets female one end to be connected with being provided with externally threaded drilling rod.
But in place of Shortcomings, drill bit, reaming bit, guided connector are connected through a screw thread, which exists
During being rotated in soil layer above-mentioned each component will be caused the more to revolve the more tight, until needing replacing drill bit, in fact it could happen that drill bit
With the too tight situation of guided connector rotation, it is difficult to ultimately result in dismounting.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of combined type reaming bits, lead to
Cross limited block, guide part is removably mounted in reamer by limiting slot, and the rotation with the device in soil layer, will not go out
The problem of existing guide part the more revolves the more tight and causes later stage dismounting difficult with reamer.
To achieve the above object, the utility model provides following technical solution：A kind of combined type reaming bit, including leading
To portion and reamer, several pieces of limited blocks, reaming are equidistantly fixed with around guide part central axes on the periphery wall of the guide part
Portion includes connector sleeve and the reamer components on connector sleeve periphery wall, and connector sleeve is on hollow setting and the periphery wall of one end
Equipped with connection screw thread；On internal perisporium of the connector sleeve away from connection screw thread one end several are equidistantly offered around connector sleeve central axes
Limiting slot, limiting slot include the first axis section parallel to the connector sleeve central axes, circumferential sections set around connector sleeve central axes, flat
Row in the second axial direction part of connector sleeve central axes, first axis section one end be pierced by end of the connector sleeve away from connection screw thread one end and
The first axis section other end is communicated in circumferential sections, and circumferential sections are communicated in the second axial direction part close to connection away from first axis section one end
Screw thread one end；Internal whorl of the connector sleeve close to connection screw thread one end is embedded with limited post, when the limited block on guide part slides into
First axis section simultaneously passes through circumferential sections, and when finally sliding into the second axial direction part, rotatable limited post makes limited post along connector sleeve
Axis direction is pushed against on guide part, so that limited block under the /V of limiting slot and limited post, is being connected with connector sleeve
Set axis direction is not subjected to displacement.
By using above-mentioned technical proposal, guide part can be removably mounted at by aforesaid operations in reamer, and with
Rotation of the device in soil layer, is not in that guide part the more revolves the more tight and causes later stage dismounting is difficult to ask with reamer
Topic.
The utility model is further arranged to：The reamer components include being fixed on two connections of connector sleeve periphery wall
Bar, and two connecting rods, around connector sleeve central axes spaced set, the central axes of two connecting rods are in same plane and intersect
In a bit；Every connecting rod is rotatably connected to a reaming bar away from connector sleeve one end, and two reaming bars are around connector sleeve axis
Line spaced set；Reaming slot is provided with along reaming pole length direction on reaming bar, turning set is equipped with /V on connector sleeve periphery wall
It covers, two gag lever posts is fixed on the periphery wall of stop collar, two gag lever posts are around connector sleeve central axes spaced set, two limits
The central axes of position bar are in same plane and intersect at a point；Every gag lever post is all connected with away from connector sleeve one end there are one /V
Part, two locating parts are slided respectively in two reaming slots；When reamer rotates in the forward direction, reaming bar expansion carry out reaming and
Locating part moves to reaming slot close to connecting rod one end, and when reamer reversely rotates, reaming bar is retracted and locating part moves to
Reaming slot is away from connecting rod one end.
By using above-mentioned technical proposal, the drill bit rotate in the forward direction punched when, since soil has anti-reaming bar
Active force, reaming bar will be unfolded, and locating part will be moved along reaming slot towards reaming slot close to connecting rod one end, and be finally pushed against
Reaming slot is on connecting rod one end.After completing drilling, when reversely rotating the drill bit and proposing the drill bit out of drilling, by
It will retract in soil to reaming bar there are one power, reaming bar is abutted under the action of borehole wall, locating part will be along reaming slot court
It is moved away from connecting rod direction, during proposing drilling in drill bit, reduces destruction of the reaming bar to borehole wall.
The utility model is further arranged to：The locating part includes being connected in pin of the gag lever post away from connector sleeve one end
Axis, turning set is equipped with pulley on axis pin and pulley inlay card is in reaming slot.
By using above-mentioned technical proposal so that locating part can roll in reaming slot, reduce locating part and reaming slot
Frictional force.
The utility model is further arranged to：Thin slice is rotatably connected on the axis pin, slice is dredged and is located at reaming slot
It is interior and positioned at axis pin away from connecting rod one side.
By using above-mentioned technical proposal, since reamer components are during drilling, often have soil and be filled into reaming
Slot, and drill bit rotate backward cause locating part towards away from connecting rod direction movement when, thin slice can push the soil in reaming slot aside,
The movement for enabling locating part more smoothly in reaming slot.
The utility model is further arranged to：Running through on the reaming bar has several gear holes, and gear hole passes through
The cell wall of reaming slot is detachably equipped with a Limit screw in one of gear hole, and it is separate that locating part is located at Limit screw
Connecting rod one side.
By using above-mentioned technical proposal, by the way that Limit screw is pierced into suitable gear hole, change the length of reaming slot
Degree so as to change moving section of the locating part in reaming slot, is changed expansion degree of the reaming bar when drill bit rotates forward, is changed with this
Become the drilling internal diameter that reamer can be got.
The utility model is further arranged to：Reaming is fixed on the peripheral wall of the reaming bar away from connecting rod one end
Tooth；When reamer rotates in the forward direction, reaming tooth position meets native face in reaming bar.
By using above-mentioned technical proposal, reaming tooth can make reaming bar preferably scrape soil, also allow in broken soil
Some stones.
The utility model is further arranged to：Arc is fixed on the peripheral wall of the reaming bar away from connecting rod one end
Convex block, and convex block is oppositely arranged along reaming bar central axes and reaming tooth；When reamer reversely rotates, convex block is located at reaming bar
Meet native face.
By using above-mentioned technical proposal, when reamer reversely rotates, the convex block of arc-shaped setting can reduce reaming bar
Destruction to borehole wall.
The utility model is further arranged to：The limited post is fixed with handle away from guide part one end.
By using above-mentioned technical proposal, convenient for staff's rotary stopper column.
The utility model has the following advantages：
1st, the rotation with the device in soil layer is not in that guide part the more revolves the more tight and the later stage is caused to be torn open with reamer
The problem of unloading difficulty；
2nd, when drill bit reversely rotates, reaming bar can retract, so as to reduce destruction of the reaming bar to borehole wall.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model exploded perspective view；
Fig. 3 is the utility model top view；
Fig. 4 is the diagrammatic cross-section at A-A in Fig. 3；
Fig. 5 is the exploded perspective view of reamer components.
Reference numeral：1st, guide part；11st, tooth is bored；12nd, limited block；2nd, reamer；21st, connector sleeve；211st, connection screw thread；
3rd, reamer components；31st, connecting rod；311st, collar bush；32nd, reaming bar；33rd, gag lever post；331st, stop collar；332nd, axis pin；333、
Anti- flake；4th, limited post；41st, handle；5th, reaming slot；51st, gear hole；52nd, Limit screw；521st, /V screw thread；53rd, /V spiral shell
It is female；54th, convex block；55th, reaming tooth；6th, slice is dredged；7th, pulley；8th, limiting slot；81st, first axis section；82nd, circumferential sections；83rd, second
Axial direction part；9th, locating part.
Specific embodiment
The utility model is described further referring to the drawings.
A kind of combined type reaming bit, with reference to figure 1, including guide part 1 and reamer 2.
With reference to figure 2,1 lower end of guide part is set in necking, and is fixed on the peripheral wall of guide part 1 and is bored tooth 11, and guide part 1 is remote
Four pieces of limited blocks 12 are fixed on peripheral wall from necking one end, four pieces of limited blocks 12 are around 1 central axes spaced set of guide part.Expand
Hole portion 2 includes a connector sleeve 21 and the reamer components 3 on 21 periphery wall of connector sleeve.Connector sleeve 21 is in hollow setting,
Connector sleeve 21 is provided with connection screw thread 211 on the periphery wall away from 1 one end of guide part, connection screw thread 211 is used to connect reamer 2
In drilling machine.Internal whorl of the connector sleeve 21 away from 1 one end of guide part is equipped with a limited post 4, and limited post 4 is away from guide part 1
One end is fixed with handle 41.
With reference to figure 4, connector sleeve 21 is provided with four limiting slots 8, and four limiting slots on the internal perisporium of 1 one end of guide part
8 around 21 central axes spaced set of connector sleeve.Limiting slot 8 includes first axis section 81, circumferential sections 82, the second axial direction part 83, the
One axial direction part 81 is set parallel to the central axes of connector sleeve 21, and circumferential sections 82 are set around the central axes of connector sleeve 21, and second is axial
Section 83 is set parallel to the central axes of connector sleeve 21.81 one end of first axis section is pierced by connector sleeve 21 close to 1 one end of guide part
End, 81 other end of first axis section are communicated in one end of circumferential sections 82, and the second axial direction part 83 is communicated in away from 1 one end of guide part
82 other end of circumferential sections, the second axial direction part 83 is close to 1 one end of guide part and connector sleeve 21 close to the end interval of 1 one end of guide part
It sets.
With reference to figure 4, when the limited block 12 on guide part 1 slides into first axis section 81 and passes through circumferential sections 82, finally slide into
During the second axial direction part 83, rotatable limited post 4 makes the axis direction of limited post 4 along connector sleeve 21 be pushed against on guide part 1, from
And make limited block 12 under the /V of limiting slot 8 and limited post 4, position does not occur in 21 axis direction of connector sleeve with connector sleeve 21
It moves.
With reference to figure 5, reamer components 3 include the fixed collar bush 311 being set on the periphery wall of connector sleeve 21, collar bush
Two connecting rods 31 are fixed on 311 periphery walls, two connecting rods 31 are around 21 central axes spaced set of connector sleeve, two connections
The central axes of bar 31 are in same plane and intersect at a point.Every connecting rod 31 is rotatably connected to away from 21 one end of connector sleeve
A piece reaming bar 32, two reaming bars 32 are around 21 central axes spaced set of connector sleeve.Along 32 length of reaming bar on reaming bar 32
Direction is provided with reaming slot 5, and the depth direction of reaming slot 5, parallel to the axis direction of connector sleeve 21, reaming slot 5 runs through reaming bar
32。
With reference to figure 5, turning set is set there are one stop collar 331 on 21 periphery wall of connector sleeve, solid on the periphery wall of stop collar 331
Two gag lever posts 33 are connected with, two gag lever posts 33 are around 21 central axes spaced set of connector sleeve, the central axes of two gag lever posts 33
In same plane and intersect at a point.Every gag lever post 33 is all connected with away from 21 one end of connector sleeve there are one locating part 9, two
Locating part 9 is slided respectively in two reaming slots 5.When reamer 2 rotates in the forward direction, the expansion of reaming bar 32 carries out reaming, and
Locating part 9 moves to reaming slot 5 close to 31 one end of connecting rod；When reamer 2 reversely rotates, reaming bar 32 is retracted and locating part
9 move to reaming slot 5 away from 31 one end of connecting rod.
With reference to figure 5, locating part 9 includes 332, pulleys 7 of an axis pin, and axis pin 332 is connected in gag lever post 33 away from even
21 one end of female connector, the axis parallel of axis pin 332 in the central axes of connector sleeve 21, away from 33 one end of gag lever post fix by axis pin 332
There is anti-flake 333.The rotation of pulley 7 is set on axis pin 332, and 7 inlay card of pulley is in reaming slot 5.It is equipped in reaming slot 5 and dredges mud
Piece 6 dredges 6 both ends of slice and is rotationally connected with axis pin 332, dredges slice 6 and is located in reaming slot 5 and positioned at axis pin 332 away from connecting rod
31 one sides.
With reference to figure 5, through there is several gear holes 51 on reaming bar 32, the central axes of gear hole 51 are perpendicular to reaming slot 5
Length direction, and gear hole 51 pass through reaming slot 5 cell wall.It is slided in one of gear hole 51 and is equipped with a /V spiral shell
Bar 52, locating part 9 are located at Limit screw 52 away from 31 one side of connecting rod.Limit screw 52 is pierced by 32 one end of reaming bar equipped with /V
Screw thread 521 is simultaneously threaded with stop nut 53.
With reference to figure 5, reaming bar 32 is fixed with reaming tooth 55 on the peripheral wall away from 31 one end of connecting rod, when reamer 2 is positive
During rotation, what reaming tooth 55 was located at reaming bar 32 meets native face.Reaming bar 32 is fixed with arc on the peripheral wall away from 31 one end of connecting rod
The convex block 54 of shape, and convex block 54 is oppositely arranged along 32 central axes of reaming bar with reaming tooth 55；It is convex when reamer 2 reversely rotates
What block 54 was located at reaming bar 32 meets native face.
Specific implementation process：The slip of Limit screw 52 is pierced into one of gear hole 51, and it is right with stop nut 53
It is fixed, then the limited block 12 on guide part 1 is slided into first axis section 81 and passes through circumferential sections 82, finally slides into second
Axial direction part 83, then rotary stopper column 4 axis direction of limited post 4 along connector sleeve 21 is made to be pushed against on guide part 1 so that
Limited block 12 is not subjected to displacement under the /V of limiting slot 8 and limited post 4, with connector sleeve 21 in 21 axis direction of connector sleeve.
Finally the device is threadably mounted on drilling machine.
In the procedure for rotating in the forward direction reaming, reaming tooth 55 is in and meets native face, at this time since soil is to reaming bar 32
There is reaction force, reaming bar 32 will be unfolded, and locating part 9 will be moved along reaming slot 5 towards Limit screw 52, and finally be pushed against limit
On the screw rod 52 of position.After completing drilling, when reversely rotating the drill bit and proposing the drill bit out of drilling, since soil is to reaming
Bar 32 will retract there are one power, reaming bar 32 is abutted under the action of borehole wall, and locating part 9 will be along reaming slot 5 towards away from limit
Position 52 direction of screw rod movement, so as to reduce destruction of the reaming bar 32 to borehole wall.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of combined type reaming bit, including guide part（1）And reamer（2）, it is characterized in that：The guide part（1）It is outer
Around guide part on peripheral wall（1）Central axes are equidistantly fixed with several pieces of limited blocks（12）, reamer（2）Including connector sleeve（21）With
Mounted on connector sleeve（21）Reamer components on periphery wall（3）, connector sleeve（21）In it is hollow setting and one end periphery wall on set
There is connection screw thread（211）；Connector sleeve（21）Away from connection screw thread（211）Around connector sleeve on the internal perisporium of one end（21）Central axes etc.
Spacing offers several limiting slots（8）, limiting slot（8）Including parallel to connector sleeve（21）The first axis section of central axes
（81）, around connector sleeve（21）The circumferential sections that central axes are set（82）, parallel to connector sleeve（21）Second axial direction part of central axes
（83）, first axis section（81）One end is pierced by connector sleeve（21）Away from connection screw thread（211）The end of one end and first axis section
（81）The other end is communicated in circumferential sections（82）, circumferential sections（82）Away from first axis section（81）One end is communicated in the second axial direction part
（83）Close to connection screw thread（211）One end；Connector sleeve（21）Close to connection screw thread（211）The internal whorl of one end is embedded with /V
Column（4）, work as guide part（1）On limited block（12）Slide into first axis section（81）And by circumferential sections（82）, finally slide into
Two axial direction parts（83）When, rotatable limited post（4）Make limited post（4）Along connector sleeve（21）Axis direction be pushed against guide part
（1）On, so that limited block（12）In limiting slot（8）And limited post（4）/V under, with connector sleeve（21）In connector sleeve
（21）Axis direction is not subjected to displacement.
2. a kind of combined type reaming bit according to claim 1, it is characterized in that：The reamer components（3）Including fixation
In connector sleeve（21）Two connecting rods of periphery wall（31）, and two connecting rods（31）Around connector sleeve（21）Central axes are equidistantly set
It puts, two connecting rods（31）Central axes be in same plane and intersect at a point；Every connecting rod（31）Away from connector sleeve
（21）One end is rotatably connected to a reaming bar（32）, two reaming bars（32）Around connector sleeve（21）Central axes are equidistantly set
It puts；Reaming bar（32）On along reaming bar（32）Length direction is provided with reaming slot（5）, connector sleeve（21）Turning set is equipped on periphery wall
Stop collar（331）, stop collar（331）Periphery wall on be fixed with two gag lever posts（33）, two gag lever posts（33）Around connector sleeve
（21）Central axes spaced set, two gag lever posts（33）Central axes be in same plane and intersect at a point；Every /V
Bar（33）Away from connector sleeve（21）One end is all connected with there are one locating part（9）, two locating parts（9）It is slided respectively embedded in two expansions
Hole slot（5）It is interior；Work as reamer（2）When rotating in the forward direction, reaming bar（32）Expansion carries out reaming and locating part（9）Move to reaming slot
（5）Close to connecting rod（31）Reamer is worked as in one end（2）During reverse rotation, reaming bar（32）Retraction and locating part（9）Move to expansion
Hole slot（5）Away from connecting rod（31）One end.
3. a kind of combined type reaming bit according to claim 2, it is characterized in that：The locating part（9）Including being connected in
Gag lever post（33）Away from connector sleeve（21）The axis pin of one end（332）, axis pin（332）Upper turning set is equipped with pulley（7）And pulley（7）
Inlay card is in reaming slot（5）It is interior.
4. a kind of combined type reaming bit according to claim 3, it is characterized in that：The axis pin（332）Upper rotation connection
There is thin slice（6）, dredge slice（6）Positioned at reaming slot（5）It is interior and positioned at axis pin（332）Away from connecting rod（31）One side.
5. a kind of combined type reaming bit according to claim 2, it is characterized in that：The reaming bar（32）If above running through has
Dry gear hole（51）, and gear hole（51）Through reaming slot（5）Cell wall, one of gear hole（51）It is interior detachably to wear
There is a Limit screw（52）, locating part（9）Positioned at Limit screw（52）Away from connecting rod（31）One side.
6. a kind of combined type reaming bit according to claim 2, it is characterized in that：The reaming bar（32）Away from connecting rod
（31）Reaming tooth is fixed on the peripheral wall of one end（55）；Work as reamer（2）When rotating in the forward direction, reaming tooth（55）Positioned at reaming bar
（32）Meet native face.
7. a kind of combined type reaming bit according to claim 6, it is characterized in that：The reaming bar（32）Away from connecting rod
（31）The convex block of arc is fixed on the peripheral wall of one end（54）, and convex block（54）Along reaming bar（32）Central axes and reaming tooth（55）
It is oppositely arranged；Work as reamer（2）During reverse rotation, convex block（54）Positioned at reaming bar（32）Meet native face.
8. a kind of combined type reaming bit according to claim 1, it is characterized in that：The limited post（4）Away from guide part
（1）One end is fixed with handle（41）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721467728.0U CN207393122U (en) | 2017-11-04 | 2017-11-04 | A kind of combined type reaming bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721467728.0U CN207393122U (en) | 2017-11-04 | 2017-11-04 | A kind of combined type reaming bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393122U true CN207393122U (en) | 2018-05-22 |
Family
ID=62324896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721467728.0U Expired - Fee Related CN207393122U (en) | 2017-11-04 | 2017-11-04 | A kind of combined type reaming bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513270A (en) * | 2021-08-03 | 2021-10-19 | 深圳宏业基岩土科技股份有限公司 | Micro-reaming drill bit |
-
2017
- 2017-11-04 CN CN201721467728.0U patent/CN207393122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513270A (en) * | 2021-08-03 | 2021-10-19 | 深圳宏业基岩土科技股份有限公司 | Micro-reaming drill bit |
| CN113513270B (en) * | 2021-08-03 | 2023-12-08 | 深圳宏业基岩土科技股份有限公司 | Micro-reaming bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20191104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |