CN204703769U - Borehole-enlarging drilling tool - Google Patents
Borehole-enlarging drilling tool Download PDFInfo
- Publication number
- CN204703769U CN204703769U CN201520357382.3U CN201520357382U CN204703769U CN 204703769 U CN204703769 U CN 204703769U CN 201520357382 U CN201520357382 U CN 201520357382U CN 204703769 U CN204703769 U CN 204703769U
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- hollow shaft
- rear axle
- axle housing
- borehole
- spring
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Abstract
The utility model discloses a kind of borehole-enlarging drilling tool, comprise hollow shaft, front shaft sleeve, rear axle housing and reaming blade mechanisms, front shaft sleeve is located at one end of hollow shaft, rear axle housing is slidably mounted on hollow shaft, reaming blade mechanisms is installed between front shaft sleeve and rear axle housing, the afterbody of rear axle housing is provided with spring, and one end of spring is connected with hollow shaft, and the other end of spring is fixedly connected on rear axle housing.When cornish bit mechanism is in rounding state, pull hollow shaft, make front and back axle sleeve produce relative sliding along hollow shaft, cornish bit mechanism opens, and carries out ream operation.The setting of spring is convenient to realize opening and drawing in of cornish bit mechanism.Therefore, the simple to operate of borehole-enlarging drilling tool is easy to folding and unfolding.
Description
Technical field
The utility model relates to boring mechanic, particularly a kind of borehole-enlarging drilling tool, for the reaming of enlarged footing anchor pole.
Background technology
Anchor pole a kind of reinforcing bar or steel strand and injecting cement paste is arranged in armature boring, and end is deep into the tension member in stable stratum.Its one end is connected with engineering structure, and the other end is then anchored in the middle of stratum, and by applying different prestressing force to it, can bear the pulling force that different load produces, to reach the object of stable structure or geotechnical engineering.End expanding type anchor pole is also referred to as enlarged footing anchor pole, and expand owing to being formed through special construction processing in the bottom of anchor pole, this anchor pole can improve the uplift resistance of anchor pole widely.
The expanding method that current soil layer enlarged footing anchor pole is conventional has high-pressure spray to cut and machine cut reaming two kinds.High-pressure spray patterning method needs to configure high-pressure injection pump because of it, and needs to increase the procedure of waste residue of replacing and cutting, and the initial stage that brings has high input, therefore general not as unit in charge of construction's prefered method; And machine cut reaming not only solves above-mentioned defect, also because its technique is simple, the initial stage drops into little, and is easily accepted by unit in charge of construction.Along with the development of anchoring, the anchoring-bolt broaching facility of huge number constantly occur, engineering practice shows, some reaming facility also exists wayward reaming quality, and complex operation and folding and unfolding such as to have some setbacks at the shortcoming.
Utility model content
The purpose of this utility model is to provide the borehole-enlarging drilling tool that a kind of reaming quality is good, simple to operate, be easy to folding and unfolding.
For achieving the above object, according to an aspect of the present utility model, provide a kind of borehole-enlarging drilling tool, comprise hollow shaft, front shaft sleeve, rear axle housing and reaming blade mechanisms, front shaft sleeve is located at one end of hollow shaft, and rear axle housing is slidably mounted on hollow shaft, reaming blade mechanisms is installed between front shaft sleeve and rear axle housing, one end of hollow shaft is provided with spring, and one end of spring is connected with hollow shaft, and the other end of spring is connected with housing.When cornish bit mechanism is in rounding state, pull hollow shaft, make antero posterior axis be enclosed within relative sliding in hollow shaft, cornish bit mechanism opens, and carries out ream operation.The setting of spring is convenient to realize opening and drawing in of cornish bit mechanism.Therefore, the simple to operate of borehole-enlarging drilling tool is easy to folding and unfolding.
In some embodiments, borehole-enlarging drilling tool also comprises housing, and spring is positioned at housing, and one end of housing is connected with rear axle housing, and spring one end is connected with housing.Thus, the installation of spring is convenient in the setting of housing, make cornish bit mechanism open and gathering process more stable.
In some embodiments, reaming blade mechanisms comprises reaming blade and support bar, and the end of reaming blade and support bar is hinged, and the other end and the front shaft sleeve of reaming blade are hinged, and the other end and the rear axle housing of support bar are hinged.Thus, when reaming blade mechanisms is in rounding state, reaming blade and support bar are in same straight line, when reaming blade mechanisms is in open mode, reaming blade and support bar angled, make reaming blade mechanisms be easy to folding and unfolding, easy and simple to handle.
In some embodiments, hollow shaft is provided with fastener, and fastener is between front shaft sleeve and rear axle housing.Thus, when reaming blade mechanisms is in open mode, fastener and rear axle housing offset, and ensure that the spacing of front shaft sleeve and rear axle housing is stablized, guarantee that pore-forming is without dead angle, improve reaming quality.
In some embodiments, the end of hollow shaft is provided with traction hook.Thus, drill power head traction hollow shaft is convenient in the setting of traction hook.
In some embodiments, the front end of front shaft sleeve has mud hole, and mud hole is connected with hollow shaft.Thus, the chip that the setting in mud hole is convenient to drilling process is produced is discharged with mud.
The beneficial effects of the utility model are: when cornish bit mechanism is in rounding state, pull hollow shaft, and make antero posterior axis be enclosed within relative sliding in hollow shaft, cornish bit mechanism opens, and carries out ream operation.The setting of spring is convenient to realize opening and drawing in of cornish bit mechanism.When reaming blade mechanisms is in open mode, fastener and rear axle housing offset, and ensure that the spacing of front shaft sleeve and rear axle housing is stablized, guarantee that pore-forming is without dead angle, improve reaming quality.To sum up, reamer of the present utility model have reaming quality good, simple to operate, be easy to folding and unfolding.The simple advantage of structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the borehole-enlarging drilling tool of the utility model one embodiment;
Fig. 2 is the schematic diagram of the bore state of borehole-enlarging drilling tool shown in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 ~ 2 show schematically show the borehole-enlarging drilling tool according to a kind of embodiment of the present utility model.
As shown in Figure 1, the borehole-enlarging drilling tool of the present embodiment, comprise hollow shaft 1, front shaft sleeve 2, rear axle housing 3 and reaming blade mechanisms 4, front shaft sleeve 2 is located at one end of hollow shaft 1, rear axle housing 3 is slidably mounted on hollow shaft 1, and reaming blade mechanisms 4 is movably installed between front shaft sleeve 2 and rear axle housing 3, and one end away from front shaft sleeve 2 and rear axle housing 3 of hollow shaft 1 is provided with spring 5, one end of spring 5 is connected with hollow shaft 1, and the other end of spring 5 is connected with rear axle housing 3.
The borehole-enlarging drilling tool of present embodiment also comprises housing 6, and the end of housing 6 is fixedly connected with rear axle housing 3, and spring 5 is positioned at housing 6.There is the first fixed block 61 and the second fixed block 62 housing 6 inside.First fixed block 61 is sheathed on hollow shaft 1 slidably, and the bottom surface of the first fixed block 61 is fixedly connected with spring 5, and the edge of the first fixed block 61 is fixedly connected with the medial surface of housing 6, achieves being fixedly connected with of spring 5 and rear axle housing.The bottom surface of the second fixed block 62 is fixedly connected with hollow shaft 1, and end face is connected with the end winding support of spring 5.Second fixed block 62 slidably, achieves the connection of spring 5 and hollow shaft 1 in housing 6.
Reaming blade mechanisms 4 comprises reaming blade 41 and support bar 42, and reaming blade 41 and the end both support bar 42 are hinged, and the other end and the front shaft sleeve 2 of reaming blade 41 are hinged, and the other end and the rear axle housing 3 of support bar 42 are hinged.
Hollow shaft 1 is provided with fastener 11, and fastener 11 and hollow shaft 1 are integral type structure, and fastener 11 is between front shaft sleeve 2 and rear axle housing 3.
The end of the principle front shaft sleeve 2 of hollow shaft 1 is provided with traction hook 7.The front end of front shaft sleeve 2 has the hole 21 that gathers materials, and the hole 21 that gathers materials is connected with hollow shaft 1.
The course of work of the borehole-enlarging drilling tool of present embodiment is: the borehole-enlarging drilling tool of present embodiment is stretched into conventional boring, reaming blade mechanisms 4 is in rounding state.Then pull traction hook 7, rear axle housing 3, second fixed block 62 slides in hollow shaft 1, and spring 5 shrinks, and then the spacing of front shaft sleeve 2 and rear axle housing 3 reduces, and reaming blade mechanisms 4 is opened gradually.Until fastener 11 is inconsistent with rear axle housing 3, the spacing of front shaft sleeve 2 and rear axle housing 3 is fixed, and by locking pulling force, is locked.Reaming blade mechanisms 4 rotates and carries out ream operation.Ream operation completes, and remove pulling force locking, spring 5 recovers reset condition, and reaming blade mechanisms 4 is drawn in, is convenient to reaming torque and takes out.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (6)
1. borehole-enlarging drilling tool, it is characterized in that, comprise hollow shaft (1), front shaft sleeve (2), rear axle housing (3) and reaming blade mechanisms (4), described front shaft sleeve (2) is located at one end of hollow shaft (1), described rear axle housing (3) is slidably mounted on hollow shaft (1), described reaming blade mechanisms (4) is installed between front shaft sleeve (2) and rear axle housing (3), one end away from front shaft sleeve (2) and rear axle housing (3) of described hollow shaft (1) is provided with spring (5), one end of described spring (5) is connected with hollow shaft (1), the other end of described spring (5) is connected with rear axle housing (3).
2. borehole-enlarging drilling tool according to claim 1, it is characterized in that, also comprise housing (6), described spring (5) is positioned at housing (6), one end of described housing (6) is connected with rear axle housing (3), and one end of described spring (5) is connected with housing (6).
3. borehole-enlarging drilling tool according to claim 1, it is characterized in that, described reaming blade mechanisms (4) comprises reaming blade (41) and support bar (42), described reaming blade (41) and support bar (42) both ends are hinged, the other end and the front shaft sleeve (2) of described reaming blade (41) are hinged, and the other end and the rear axle housing (3) of described support bar (42) are hinged.
4. borehole-enlarging drilling tool according to claim 1, is characterized in that, described hollow shaft (1) is provided with fastener (11), and described fastener (11) is positioned between front shaft sleeve (2) and rear axle housing (3).
5. borehole-enlarging drilling tool according to claim 1, is characterized in that, the end of described hollow shaft (1) is provided with traction hook (7).
6. borehole-enlarging drilling tool according to claim 1, is characterized in that, the front end of described front shaft sleeve (2) has mud hole (21), and described mud hole (21) is connected with hollow shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357382.3U CN204703769U (en) | 2015-05-28 | 2015-05-28 | Borehole-enlarging drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357382.3U CN204703769U (en) | 2015-05-28 | 2015-05-28 | Borehole-enlarging drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703769U true CN204703769U (en) | 2015-10-14 |
Family
ID=54283394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520357382.3U Active CN204703769U (en) | 2015-05-28 | 2015-05-28 | Borehole-enlarging drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756758A (en) * | 2018-06-07 | 2018-11-06 | 兖州煤业股份有限公司 | A kind of gob side entry driving thin coal pillar strengthening construction Counterboring apparatus |
| WO2018218900A1 (en) * | 2017-05-27 | 2018-12-06 | 河南理工大学 | Anchor-bolt hole interior reamer used for mining |
-
2015
- 2015-05-28 CN CN201520357382.3U patent/CN204703769U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018218900A1 (en) * | 2017-05-27 | 2018-12-06 | 河南理工大学 | Anchor-bolt hole interior reamer used for mining |
| US10633927B2 (en) | 2017-05-27 | 2020-04-28 | Henan Polytechnic University | Internal reamer for anchor shaft hole for mining |
| CN108756758A (en) * | 2018-06-07 | 2018-11-06 | 兖州煤业股份有限公司 | A kind of gob side entry driving thin coal pillar strengthening construction Counterboring apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |