CN207144830U - A kind of hydraulic type bottom expanding drill - Google Patents
A kind of hydraulic type bottom expanding drill Download PDFInfo
- Publication number
- CN207144830U CN207144830U CN201720890480.2U CN201720890480U CN207144830U CN 207144830 U CN207144830 U CN 207144830U CN 201720890480 U CN201720890480 U CN 201720890480U CN 207144830 U CN207144830 U CN 207144830U
- Authority
- CN
- China
- Prior art keywords
- drill
- lifter plate
- lifting unit
- piston
- press section
- 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
Abstract
The utility model provides a kind of hydraulic type bottom expanding drill, including：Drill body, drill body are cylinder, and inside offers cylindrical hydraulic pressure cavity；Piston, piston is arranged at hydraulic pressure inside cavity, and can be moved in the presence of external force along the inwall of hydraulic pressure cavity；Drill bit retainer plate, drill bit retainer plate are the cylinder that diameter is more than drill body, and inner hollow, drill bit retainer plate and drill body design for integral type；Multiple lifter plates, multiple lifter plates are circumferentially disposed around drill bit retainer plate, lifter plate includes press section, rotating part and lifting unit, press section, rotating part and the lifting unit of lifter plate design for integral type, set between press section and lifting unit in first angle, rotating part is provided between press section and lifting unit；Lifter plate is flexibly connected by rotating part with drill bit retainer plate, and the press section of lifter plate is arranged at the bottom of piston.
Description
Technical field
It the utility model is related to constructional engineering machinery technical field, and in particular to a kind of hydraulic type bottom expanding drill.
Background technology
Bottom expanding drill is the drill bit of the construction base expanding and base expanding in rotary drilling.Typically by the base expanding and base expanding wing, pressure frame, connecting rod, base and
Bearing pin forms.The base expanding and base expanding wing has both wings, three wings or four wings, the base expanding and base expanding wing is gradually opened under drilling tool Gravitative Loads when rig turns round
Open, cutting hole wall carries out base expanding and base expanding.Existing bottom expanding drill is generally dead-weight bottom expanding drill, gravity of the base expanding and base expanding wing in equipment itself
Effect is lower gradually to open, so that the own wt of whole equipment is very big, is generally required in operating process by external equipment
To aid in bottom expanding drill to complete construction task.
Utility model content
In view of this, the utility model provides a kind of hydraulic type bottom expanding drill, by the contraction of the hydraulic pressure control base expanding and base expanding wing, no
Itself huge weight is needed to control the contraction of the base expanding and base expanding wing.
The utility model provides a kind of hydraulic type bottom expanding drill, it is characterised in that：The hydraulic type bottom expanding drill includes：
Drill body, the drill body are cylinder, and inside offers cylindrical hydraulic pressure cavity；
Piston, the piston are arranged at the hydraulic pressure inside cavity, and can be in the presence of external force along the hydraulic pressure
The inwall movement of cavity；
The drill bit retainer plate of the drill body bottom is arranged at, the drill bit retainer plate is that diameter is more than the drill bit sheet
The cylinder of body, inner hollow, the drill bit retainer plate design with the drill body for integral type；
Multiple lifter plates, the multiple lifter plate is circumferentially disposed around the drill bit retainer plate, and the lifter plate includes
Press section, rotating part and lifting unit, press section, rotating part and the lifting unit of the lifter plate design for integral type, described
Set between press section and the lifting unit in first angle, rotating part is provided between the press section and the lifting unit；
The lifter plate is flexibly connected by the rotating part with the drill bit retainer plate, and the press section of the lifter plate is set
The bottom of the piston is placed in, when inwall of the piston along the hydraulic pressure cavity moves down, the press section can be oppressed
Move downward, the lifter plate can rotate by axle of the rotating part, and the lifting unit outwards struts.
Preferably, the drill bit retainer plate is circumferentially provided with multigroup axis pin base, and the rotating part of the lifter plate is provided with
Pin shaft hole, bearing pin is provided with pin shaft hole, the both ends of the bearing pin are fixed on axis pin base, and the lifter plate passes through bearing pin and institute
State the flexible connection of drill bit retainer plate.
Preferably, the press section of the lifter plate is conical plate, and the lifting unit of the lifter plate is with certain radian
Arc, the side of the lifting unit are provided with brill tooth.
Preferably, the weight of the lifting unit is more than the weight of the press section so that the press section is not by external force
In the state of, the lifting unit returns to vertical state under the Action of Gravity Field of itself；And the weight of the lifter plate is more than
The weight of the piston so that when not by downward pressure, the lifting promotes the piston under the Action of Gravity Field of itself
The piston upwards.
Preferably, the upper end of the drill body is provided with adpting flange, and the drill body passes through the adpting flange
Connecting power device；
The power set include motor and reductor, and the output shaft of the adpting flange and the power set connects
Connect, the power set drive the output shaft rotation, so as to drive the drill body to rotate together.
Preferably, water inlet is connected with the output shaft of the power set, it is the hydraulic type that the water inlet, which is used for,
Bottom expanding drill provides water source.
The utility model inputs water source into the output shaft by the water inlet, and water source enters the hydraulic pressure cavity
Interior, in the presence of hydraulic pressure, inwall of the piston along the hydraulic pressure cavity moves down, while oppresses the activity of the press section
End moves down, and the lifter plate rotates along the rotating part, and the movable end of the lifting unit expands outwardly, when the lifting
When the movable end in portion is expanded to required angle, start the power set, drive the drill body to rotate.
The utility model applies pressure by water source to the piston of drill bit internal, so as to control the expansion of lifter plate, not
When needing work, the hydraulic pressure of drill bit internal can be laid down at any time, mitigate the weight of drill bit itself.
Brief description of the drawings
Fig. 1 is hydraulic type bottom expanding drill external structure schematic diagram of the present utility model；
Fig. 2 is the diagrammatic cross-section of hydraulic type bottom expanding drill original state of the present utility model；
Fig. 3 is the diagrammatic cross-section of hydraulic type bottom expanding drill working condition of the present utility model；
Fig. 4 is hydraulic type bottom expanding drill upward view of the present utility model；
Fig. 5 is the structural representation of lifter plate of the present utility model；
Fig. 6 is the side view of lifter plate of the present utility model.
Embodiment
In order to be better understood from the utility model, enter traveling one to the utility model with reference to specific embodiments and the drawings
The description of step.
The utility model provides a kind of hydraulic type bottom expanding drill, and the hydraulic type bottom expanding drill includes：Drill body 1, live
Plug 2, drill bit retainer plate 3 and multiple lifter plates 4.
Further, the drill body 1 is cylinder, and inside offers cylindrical hydraulic pressure cavity 101；The cylinder
Hydraulic pressure cavity 101 is internally provided with piston 2, and the piston 2, can be along the hydraulic pressure cavity 101 in the presence of external force
Inwall moves up and down.
The upper end of the drill body 1 is provided with adpting flange 102, and the drill body 1 passes through the adpting flange 102
Connecting power device 5.
The lower end of the drill body 1 is provided with drill bit retainer plate 3, and the drill bit retainer plate 3 is that diameter is more than the brill
The cylinder of head body 1, inner hollow, the drill bit retainer plate 3 design with the drill body 1 for integral type.
Further, around the circumferentially disposed of the drill bit retainer plate 3, the lifter plate 4 includes the multiple lifter plate 4
Press section 401, rotating part 402 and lifting unit 403, press section 401, rotating part 402 and the lifting unit of the lifter plate 4
403 design for integral type, are set between the press section 401 and the lifting unit 403 in first angle, the press section 401
The junction of the lifting unit 403 is provided with rotating part 402.
The first angle is at 90 degree between 180 degree.
Further, the drill bit retainer plate 3 is circumferentially provided with multigroup axis pin base 301, the rotating part of the lifter plate 4
402 are provided with pin shaft hole 404, and bearing pin 405 is provided with pin shaft hole 404, and axis pin base 301 is fixed at the both ends of the bearing pin 405
On, the lifter plate 4 is flexibly connected by bearing pin 405 with the drill bit retainer plate 3.
In original state, the press section 401 of the multiple lifter plate 4 is in contact with the bottom of the piston 2, described to press
The movable end 4011 of splenium 401 is against the bottom of the piston 2, when the piston 2 is received external force effect and moved down, the work
The press section 401 of the lifter plate 4 is pressed downward by plug 2, due to the press section 401 of the lifter plate 4, rotating part 402 and is risen
Drop portion 403 designs for integral type, and when the movable end 4011 of the press section 401 moves down, the rotating part 402 is along described
Bearing pin 405 rotates, and the movable end 4031 of the lifting unit 403 expands outwardly.
Further, the press section 401 of the lifter plate 4 is conical plate, the lifting unit 403 of the lifter plate 4 be with
The arc of certain radian, the side of the lifting unit 403, which is provided with, bores tooth 406.
Further, the weight of the lifting unit 403 is more than the weight of the press section 401 so that the press section 401
In the state of by external force, the lifter plate 4 does not return to original state under the Action of Gravity Field of itself；And the lifter plate
4 weight is more than the weight of the piston 2 so that for the piston 2 when not by downward pressure, the lifter plate 4 is at itself
Action of Gravity Field under, promote the piston 2 to move upwards；Now, the lifting unit 403 of the lifter plate 4 is in vertical state, institute
The press section 401 for stating lifter plate 4 promotes the piston 2 so that the piston 2 moves up, and returns to original state.
Further, the power set include motor and reductor, the adpting flange 102 and the power set
Output axis connection, the power set drive the output shaft rotation, so as to drive the drill body 1 to rotate together.
Further, water inlet is connected with the output shaft of the power set, it is the hydraulic pressure that the water inlet, which is used for,
Formula bottom expanding drill provides water source.
Further, it is provided with sealing ring between the power set and the adpting flange 102.
Water source is inputted into the output shaft by the water inlet, water source enters in the hydraulic pressure cavity 101, in hydraulic pressure
In the presence of, inwall of the piston 2 along the hydraulic pressure cavity 101 moves down, while oppresses the movable end of the press section 401
4011 move down, and the lifter plate 4 rotates along the rotating part 402, and the movable end 4031 of the lifting unit 403 is to extending out
, when the movable end of the lifting unit 403 is expanded to required angle, starts the power set, drive the drill bit sheet
Body 1 rotates.
The inwall of the piston 2 and the hydraulic pressure cavity 101 can set sealing device, but be not the utility model institute
Required, because in the course of the work, water source can be along small between the inwall of the piston 2 and the hydraulic pressure cavity 101
Space flow in working environment, can by working environment soil soak so that bit operation gets up to be more prone to.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the restriction not to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among the obvious changes or variations amplified out is still in the scope of protection of the utility model.
Claims (6)
- A kind of 1. hydraulic type bottom expanding drill, it is characterised in that：The hydraulic type bottom expanding drill includes：Drill body, the drill body are cylinder, and inside offers cylindrical hydraulic pressure cavity；Piston, the piston are arranged at the hydraulic pressure inside cavity, and can be in the presence of external force along the hydraulic pressure cavity Inwall movement；The drill bit retainer plate of the drill body bottom is arranged at, the drill bit retainer plate is that diameter is more than the drill body Cylinder, inner hollow, the drill bit retainer plate design with the drill body for integral type；Multiple lifter plates, the multiple lifter plate is circumferentially disposed around the drill bit retainer plate, and the lifter plate includes pressing Portion, rotating part and lifting unit, press section, rotating part and the lifting unit of the lifter plate design for integral type, the pressing Set between portion and the lifting unit in first angle, rotating part is provided between the press section and the lifting unit；The lifter plate is flexibly connected by the rotating part with the drill bit retainer plate, and the press section of the lifter plate is arranged at The bottom of the piston, when inwall of the piston along the hydraulic pressure cavity moves down, it is downward that the press section can be oppressed Motion, the lifter plate can rotate by axle of the rotating part, and the lifting unit outwards struts.
- 2. hydraulic type bottom expanding drill according to claim 1, it is characterised in that：The drill bit retainer plate is circumferentially provided with Multigroup axis pin base, the rotating part of the lifter plate are provided with pin shaft hole, bearing pin are provided with pin shaft hole, and the both ends of the bearing pin are consolidated Due on axis pin base, the lifter plate is flexibly connected by bearing pin with the drill bit retainer plate.
- 3. hydraulic type bottom expanding drill according to claim 1, it is characterised in that：The press section of the lifter plate is taper Plate, the lifting unit of the lifter plate is the arc with certain radian, and the side of the lifting unit is provided with brill tooth.
- 4. hydraulic type bottom expanding drill according to claim 1, it is characterised in that：The weight of the lifting unit is more than described press The weight of splenium so that the press section is not in the state of by external force, the lifting unit recovers under the Action of Gravity Field of itself To vertical state；And the weight of the lifter plate is more than the weight of the piston so that the piston is not by downward pressure During power, the lifting 4 promotes the piston upwards under the Action of Gravity Field of itself.
- 5. hydraulic type bottom expanding drill according to claim 1, it is characterised in that：The upper end of the drill body is provided with company Acting flange, the drill body pass through the adpting flange connecting power device；The power set include motor and reductor, the output axis connection of the adpting flange and the power set, institute State power set and drive the output shaft rotation, so as to drive the drill body to rotate together.
- 6. hydraulic type bottom expanding drill according to claim 5, it is characterised in that：Connected on the output shaft of the power set There is water inlet, the water inlet is used to provide water source for the hydraulic type bottom expanding drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720890480.2U CN207144830U (en) | 2017-07-20 | 2017-07-20 | A kind of hydraulic type bottom expanding drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720890480.2U CN207144830U (en) | 2017-07-20 | 2017-07-20 | A kind of hydraulic type bottom expanding drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144830U true CN207144830U (en) | 2018-03-27 |
Family
ID=61676339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720890480.2U Expired - Fee Related CN207144830U (en) | 2017-07-20 | 2017-07-20 | A kind of hydraulic type bottom expanding drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207144830U (en) |
-
2017
- 2017-07-20 CN CN201720890480.2U patent/CN207144830U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105239922A (en) | Local reciprocating type hydraulic-impact well drilling speed increasing tool | |
| CN104179173B (en) | A kind of pile pipe extruding reamer | |
| CN205100880U (en) | Crowded counterboring machine is dug soon to horizontal application of force formula | |
| CN203701977U (en) | Diameter-variable underreaming drill and drilling machine | |
| CN203701981U (en) | Reamer bit | |
| CN207144830U (en) | A kind of hydraulic type bottom expanding drill | |
| CN205117214U (en) | Rotary digging, jostling and enlarging drill | |
| CN215211016U (en) | Anchor rod drilling bottom-expanding grouting complete device | |
| CN103485724A (en) | Underreaming drill bit | |
| CN109281618A (en) | A kind of hydraulic type bottom expanding drill | |
| CN110529041B (en) | Self-soil-taking type double-layer full casing pipe for inclined pile hole forming and construction method thereof | |
| CN207553978U (en) | It is a kind of to revolve the drill bit device for expanding radius and alterable height | |
| CN110646174B (en) | Testing device and testing method for performance parameters of auxiliary drilling tool | |
| CN204000843U (en) | A kind of pile pipe extruding reamer | |
| CN202531027U (en) | Multi-blade cutting hydraulic hole enlarger | |
| CN206737819U (en) | Rock drill forward beam is swung and rotating device | |
| CN203559784U (en) | Underreaming drill bit | |
| CN205135426U (en) | Soil-collecting type hydraulic bottom-expanding drilling machine | |
| CN211647990U (en) | Drilling machine with cutting and expanding functions | |
| CN203640609U (en) | Straight cylinder type double-taper diameter variable rotary expansion drilling tool | |
| CN209621210U (en) | A kind of rock body drilled reamer | |
| CN209621213U (en) | A kind of mechanical reaming bit of foundation engineering | |
| CN203701979U (en) | Diameter-variable underreaming drill and drilling machine | |
| CN217327189U (en) | Expanding bit and rotary drilling rig | |
| CN205576913U (en) | Device is spouted soon in stirring of roof pressure formula stake machine |
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: 20180327 Termination date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |