CN203559784U - Underreaming drill bit - Google Patents
Underreaming drill bit Download PDFInfo
- Publication number
- CN203559784U CN203559784U CN201320558463.0U CN201320558463U CN203559784U CN 203559784 U CN203559784 U CN 203559784U CN 201320558463 U CN201320558463 U CN 201320558463U CN 203559784 U CN203559784 U CN 203559784U
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- connecting rod
- shovel piece
- expansion
- underreaming
- central post
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Abstract
The utility model relates to expansion drill bits, in particular to an underreaming drill bit. The underreaming drill bit comprises a central column, a loading and unloading soil bucket and underreaming shovel pieces. Movable pieces for opening and closing are disposed on two sides of the loading and unloading soil bucket. The underreaming drill bit is characterized in that the loading and unloading soil bucket is connected to the end of the central column. One underreaming shovel piece is disposed on the corresponding position of each movable piece. A plurality of multi-connecting rods used for connecting and transversely telescoping the underreaming shovel pieces are axially disposed on the central column. Each underreaming shovel piece is connected with the corresponding movable piece to drive the same to open and close. Compared with the prior art, the underreaming drill bit has the advantages that the movable pieces of the loading and unloading soil buckets can be driven to open and close when the underreaming shovel pieces are opened, so that soil under lateral shovels can enter the soil bucket directly, and a position sensor in the preferred embodiment can sensor rotating angle of the underreaming shovel pieces and sends the same to the ground for imaging through a data line.
Description
[technical field]
The utility model relates to a kind of expanding drill bit, is specifically related to bottom expanding drill.
[background technology]
Bottom expanding drill is the drill bit for the expanded bore pile of constructing in rotary drilling.Generally by expanding the end wing, pressure frame, connecting rod, base and bearing pin, form.Expanding the end wing has both wings, three wings or four wings, makes to expand the end wing and open gradually when rig turns round under drilling tool Gravitative Loads, and cutting hole wall expands the end.
As domestic utility model CN102704851A discloses a kind of bottom expanding drill and rotary drilling rig, by hydraulic cylinder, control side door and open or close to realize the expansion end and receive slag, reaming precision is high, can realize automatic clinker-removing simultaneously, automaticity is high, can significantly improve the efficiency that expands end operation.Its cutter that expands the end is set directly on the side door of scraper bowl, this design when expanding the end, part of the force concentrates on side door, but the side door of scraper bowl is not stressed member, easily causes that to expand end efficiency low, and damages side door.
[summary of the invention]
In order to solve deficiency of the prior art and defect, a kind of end shovel piece 3 that expands of the utility model design can open and close voluntarily the bottom expanding drill that loads and unloads soil bucket 4 in operation process.
For achieving the above object, design a kind of bottom expanding drill, comprise central post 1, handling soil bucket 4 and expand end shovel piece 3, handling soil bucket 4 both sides are provided with the activity template 49 for opening and closing, it is characterized in that central post 1 end connects handling soil bucket 4, central post 1 both sides activity template 49 correspondence positions arrange respectively shovel piece 3 at the bottom of an expansion, on central post 1, be axially arranged with a plurality of for connect and lateral extensometer reducing and expansion at the bottom of at the bottom of expansion described in many connecting rods of shovel piece 3 shovel piece 3 bottoms connect and drive activity templates 49 to open and close.
Above-mentioned bottom expanding drill also has as follows and optimizes structure:
In described a plurality of many connecting rods, at least contain one by first connecting rod pole 14, first expands the connecting rod more than first of end shovel piece connecting rod 37 and hydraulic jack 35 compositions, first connecting rod pole 14 centers are provided with perforate, described first connecting rod pole 14 is enclosed within on central post 1 by perforate level, first expands end shovel piece connecting rod 37 is connected to first connecting rod pole 14 two ends by vertical pivot, on described first connecting rod pole 14 first expanded end shovel piece connecting rod 37 correspondence positions and also distinguished fixed hydraulic oil cylinder 35, the piston rod of described hydraulic jack 35 connects promotion the first expansion end shovel piece connecting rod 37 and rotates in the horizontal direction around vertical pivot.
Described many connecting rods also comprise the connecting rod more than second being comprised of second connecting rod pole 13, swingle 51, subsidy connecting rod 55, the second expansion end shovel piece connecting rod 38, described second connecting rod pole 13 is provided with perforate with swingle 51 centers, second connecting rod pole 13 and the horizontal cross cap of swingle 51 are located on described central post 1, and swingle 51 two ends are expanded shovel piece connecting rod 38 middle parts, the end by subsidy connecting rod 55 and second and are connected by vertical pivot.
On described swingle 51, be also provided with the position sensor 53 that expands end shovel piece 3 displacements for surveying.
Described central post 1 root is provided with stabilizer 2.
At the bottom of described expansion, shovel piece 3 is comprised of the rake 32 on top and the erection part 31 of bottom.
On described central post 1, both sides are also provided with the secondary end shovel piece 36 that expands.
Described handling soil bucket 4 bottoms are provided with center positioning device 45.
At the bottom of described expansion, shovel piece 3 is provided with and expands bed plate tool 33.
At the bottom of described expansion, shovel piece 3 erection part 31 are flexibly connected by support link 48 with activity template 49.
The utility model compared with the existing technology, it is activity template 49 keyings that drive handling soil bucket 4 that bottom expanding drill can be opened in expansion end shovel piece 3, soil under the shovel of side can directly be entered in soil bucket, position sensor 53 in preferred version can be responded to the angle that expands 3 rotations of end shovel piece, then is sent to imaging on ground by data wire.
[accompanying drawing explanation]
Fig. 1 is the structural representation of embodiment;
Fig. 2 is that embodiment expands end view;
Fig. 3 is the A-A face sectional view of Fig. 1;
Fig. 4 is the B-B face sectional view of Fig. 1;
Fig. 5 is the C-C face sectional view of Fig. 2;
Fig. 6 is the D-D face sectional view of Fig. 2;
Fig. 7 is the E-E face sectional view of Fig. 2;
Fig. 8 is the F-F face sectional view of Fig. 2;
Fig. 9 is the G-G face sectional view of Fig. 2;
1. central post 11. central post flange 13. second connecting rod pole 14. first connecting rod poles in figure;
2. the stable cover piece of stabilizer 21. prerotation vane 22. 23. drilling rods connect square set 24. central post adpting flanges;
3. expand the secondary end shovel pieces 37. first expansion end shovel piece connecting rods 38. second that expand of end shovel piece 31. erection part 32. rakes 33. expansion bed plate tool 34. oil cylinder engaging lug 35. hydraulic jacks 36. and expand end shovel piece connecting rod;
4. handling soil bucket 41. unloads native draw ring 42. and fills native latch hook 43. base plate 44. folding dowel hole 45. center positioning device 46. dress soil bucket 47. scraper bowl engaging lug 48. support link 49. activity templates.
51. swingle 53. position sensor 54. sensor seal cover 55. subsidy connecting rods.
[specific embodiment]
In order to make the utility model clearer, by reference to the accompanying drawings the utility model is further explained to explanation, but and be not used in restriction the utility model, the utility model equipment can obtain by conventional manufacturing process.
Embodiment
As shown in Figure 1, the bottom expanding drill of the present embodiment comprises central post 1, handling soil bucket 4 and expands end shovel piece 3, handling soil bucket 4 both sides are provided with for opening and closing the activity template 49 of soil bucket, central post 1 end connects handling soil bucket 4, root is provided with stabilizer 2, and at the bottom of central post 1 both sides activity template 49 correspondence positions arrange respectively an expansion, shovel piece 3 expands end shovel piece 36 with pair, expands end shovel piece 3 and is comprised of the rake 32 on top and the erection part 31 of bottom, its surface is provided with expands bed plate tool 33, on central post 1, is axially arranged with:
One by first connecting rod pole 14, the first connecting rod more than first that expands end shovel piece connecting rod 37 and hydraulic jack 35 compositions is (as Fig. 4, shown in Fig. 6), first connecting rod pole 14 centers are provided with perforate, described first connecting rod pole 14 is enclosed within on central post 1 by perforate level, first expands end shovel piece connecting rod 37 is connected to first connecting rod pole 14 two ends by vertical pivot, on described first connecting rod pole 14 first expanded end shovel piece connecting rod 37 correspondence positions and also distinguished fixed hydraulic oil cylinder 35, the piston rod of described hydraulic jack 35 connects promotion the first expansion end shovel piece connecting rod 37 and rotates in the horizontal direction around vertical pivot,
An and connecting rod more than second (as shown in Fig. 3, Fig. 5) being formed by second connecting rod pole 13, swingle 51, subsidy connecting rod 55, the second expansion end shovel piece connecting rod 38, described second connecting rod pole 13 is provided with perforate with swingle 51 centers, second connecting rod pole 13 and the horizontal cross cap of swingle 51 are located on described central post 1, swingle 51 two ends are expanded shovel piece connecting rod 38 middle parts, the end by subsidy connecting rod 55 and second and are connected by vertical pivot, on swingle 51, be also provided with the position sensor 53 that expands end shovel piece 3 displacements for surveying
As shown in Fig. 7～9, expand end shovel piece 3 erection part 31 and activity template 49 by support link 48 interlocks, many connecting rods stretch out by hydraulic jack 35, expand end shovel piece connecting rod 37 toward inner rotary, expand certain angle, drive expansion end shovel piece 3 expansion outward, make it expand the end.Drive upper secondary to expand end shovel piece 36 simultaneously and expand outwardly together, the angled rotation of band dynamic sensor 53 swingle 51, is transferred to sensor 53 by sensor 53 axis of rotation by the angle number of rotation.By data wire, send angle-data on ground imaging again.Handling soil bucket 4 revolves with common that to dig drill bit similar, adopts to pull to unload native draw ring 41 its base plate 43 is taken off, and the soil of dress soil bucket 46 the insides is poured out outward.By support link 48, handling soil bucket 4 activity templates 49 are connected with expansion end shovel piece 3 simultaneously, when expanding when end shovel piece 3 expands outwardly, drive handling soil to struggle against 4 activity templates 49 together to inner rotary, the soil of its side is directly put in soil bucket 46.
One end of connecting rod pole the same side of above-mentioned connecting rod more than first and connecting rod more than second is connected same vertical pivot, first connecting rod pole and second connecting rod pole keeping parallelism state in perpendicular.The bottom of vertical pivot is fixedly connected in the outer wall of handling soil bucket.
Claims (10)
1. a bottom expanding drill, comprise central post (1), handling soil buckets (4) and expand end shovel piece (3), handling soil bucket (4) both sides are provided with the activity template (49) for opening and closing, it is characterized in that central post (1) end connects handling soil buckets (4), central post (1) both sides activity templates (49) correspondence position arranges respectively shovel piece (3) at the bottom of an expansion, on central post (1), be axially arranged with a plurality of many connecting rods for shovel piece (3) at the bottom of connection lateral extensometer reducing and expansion, shovel piece at the bottom of described expansion (3) bottom connects drive activity template (49) keying.
2. bottom expanding drill as claimed in claim 1, it is characterized in that at least containing one by connecting rod pole (14) in described a plurality of many connecting rods, expand the connecting rod more than first that end shovel piece connecting rod (37) and hydraulic jack (35) form, connecting rod pole (14) center is provided with perforate, described connecting rod pole (14) is enclosed within on central post (1) by perforate level, expand end shovel piece connecting rod (37) and be connected to connecting rod pole (14) two ends by vertical pivot, the upper connecting rod correspondence position of described connecting rod pole (14) is also distinguished fixed hydraulic oil cylinder (35), the piston rod of described hydraulic jack (35) connects promotion expansion end shovel piece connecting rod (37) and rotates in the horizontal direction around vertical pivot.
3. bottom expanding drill as claimed in claim 2, it is characterized in that described many connecting rods also comprise by connecting rod pole (14), swingle (51), subsidy connecting rod (55), expand the connecting rod more than second that end shovel piece connecting rod (37) forms, described connecting rod pole (14) is provided with perforate with swingle (51) center, it is upper that connecting rod pole (14) and the horizontal cross cap of swingle (51) are located at described central post (1), and swingle (51) two ends are connected by vertical pivot with expansion end shovel piece connecting rod (37) middle part by subsidy connecting rod (55).
4. bottom expanding drill as claimed in claim 3, is characterized in that being also provided with for surveying the position sensor (53) of expansion end shovel piece (3) displacement on described swingle (51).
5. bottom expanding drill as claimed in claim 1, is characterized in that described central post (1) root is provided with stabilizer (2).
6. bottom expanding drill as claimed in claim 1, it is characterized in that described expansion at the bottom of shovel piece (3) by the rake (32) on top and the erection part (31) of bottom, formed.
7. bottom expanding drill as claimed in claim 1, is characterized in that the upper both sides of described central post (1) are also provided with the secondary end shovel piece (36) that expands.
8. bottom expanding drill as claimed in claim 1, is characterized in that described handling soil buckets (4) bottom is provided with center positioning device (45).
9. bottom expanding drill as claimed in claim 1, it is characterized in that at the bottom of described expansion that shovel piece (3) is provided with expands bed plate tool (33).
10. bottom expanding drill as claimed in claim 1, it is characterized in that described expansion at the bottom of shovel piece (3) erection part (31) be flexibly connected by support link (48) with activity template (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558463.0U CN203559784U (en) | 2013-09-09 | 2013-09-09 | Underreaming drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558463.0U CN203559784U (en) | 2013-09-09 | 2013-09-09 | Underreaming drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559784U true CN203559784U (en) | 2014-04-23 |
Family
ID=50509512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558463.0U Expired - Lifetime CN203559784U (en) | 2013-09-09 | 2013-09-09 | Underreaming drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485724A (en) * | 2013-09-09 | 2014-01-01 | 浙江鼎业基础工程有限公司 | Underreaming drill bit |
| CN106968603A (en) * | 2017-03-30 | 2017-07-21 | 中国五冶集团有限公司 | A kind of broaching equipment being exclusively used on construction site |
-
2013
- 2013-09-09 CN CN201320558463.0U patent/CN203559784U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485724A (en) * | 2013-09-09 | 2014-01-01 | 浙江鼎业基础工程有限公司 | Underreaming drill bit |
| CN106968603A (en) * | 2017-03-30 | 2017-07-21 | 中国五冶集团有限公司 | A kind of broaching equipment being exclusively used on construction site |
| CN106968603B (en) * | 2017-03-30 | 2019-06-18 | 中国五冶集团有限公司 | A kind of broaching equipment being exclusively used on construction site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |