CN202273599U - Spline drilling rod - Google Patents
Spline drilling rod Download PDFInfo
- Publication number
- CN202273599U CN202273599U CN2011203977246U CN201120397724U CN202273599U CN 202273599 U CN202273599 U CN 202273599U CN 2011203977246 U CN2011203977246 U CN 2011203977246U CN 201120397724 U CN201120397724 U CN 201120397724U CN 202273599 U CN202273599 U CN 202273599U
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- China
- Prior art keywords
- drilling rod
- outer tube
- spline
- key
- feather
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Abstract
The utility model discloses a spline drilling rod, which comprises an outer tube and an inner tube, wherein the outer tube is a drilling rod basic body; the inner tube is a concrete conveying channel. The spline drilling rod also comprises a spline formed by guide keys; the guide keys are made of long and stripy steel and are welded on the outer surface of the outer tube; four guide keys are arranged, wherein two guide keys are distributed at the outer surface of one side of the outer tube in parallel so as to form a key strip channel, and the other two guide keys are symmetrically distributed on the outer surface of the other side of the outer tube so as to form another key strip channel symmetrically, and the two key strip channels are used for axial movement of two pairs of keys in the power head along a drilling rod shaft; and the connecting lines between the centers of the cross section of the two key strip channels and the center of the outer tube form an 180-degree angle. According to the spline drilling rod, the loading position can be adjusted by level according to different piling depths, the sectional and simultaneous transfer of the torque and the axial load from a driving device to the drilling rod can be realized, the rigidity of the drilling rod in piling can be improved, the center-of-gravity position of the driving device on equipment can be reduced and the stability of the piling equipment can be improved.
Description
Technical field
The utility model relates to drilling rod, particularly relates to a kind of spline drilling rod.
Background technology
In the construction of infrastructure, often need drive piles, drilling rod is the most frequently used piling instrument.During rotation piling, need apply moment of torsion and axial load to drilling rod, moment of torsion adopts unit head to provide, and axial load acts on unit head through drilling rod deadweight or external load, and unit head remakes and is used for the drilling rod realization.
For the moment of torsion transmission that realizes drilling rod with apply axial load, following two kinds of schemes are arranged at present:
First kind of scheme: unit head is fixed on the drilling rod top, in the use, does not have axial mutual motion between unit head and the drilling rod.When adopting this scheme, unit head is in the top of drilling rod, if drilling rod is longer, when applying axial load, the drilling rod rigidity is relatively poor, and the unit head center of gravity is too high, make entire equipment use or transportation in less stable.
Second kind of scheme: adopt the spline transfer torque between unit head and the drilling rod, unit head can move axially along drilling rod, utilizes the drilling rod deadweight or adopts the axial displacement limiting mechanism, realizes axial loading.When utilizing the drilling rod deadweight to realize axially loading, there is the little defective of axial force; When adopting the axial displacement limiting mechanism to realize axially loading, have baroque defective, in addition, because construction environment is relatively more abominable usually, in actual use, the axial displacement limiting mechanism often breaks down.
The utility model content
The purpose of the utility model is in order to overcome the deficiency of above-mentioned background technology; A kind of spline drilling rod is provided, can be according to the different depth of piling, classification adjustment loading position; Can realize that the drive unit segmentation is simultaneously to drilling rod transfer torque and axial load; The rigidity of drilling rod when improving piling reduces the position of centre of gravity of drive unit on equipment, improves the stability of pile driving equipment.
The spline drilling rod that the utility model provides, it comprises outer tube and interior pipe, said outer tube is the drilling rod matrix; Pipe is concrete transfer passage in said; It also comprises the spline that is made up of feather key, and said feather key is processed by the strip steel, is welded on the external surface of said outer tube.
In technique scheme; Said feather key is provided with four, and wherein two parallel external surfaces that are distributed in outer tube one side of feather key form a key bar passage; Other two feather keys are distributed in the external surface of outer tube opposite side symmetrically; Form another key bar passage symmetrically, be used for the interior two pairs of keys of unit head and move axially, be 180 degree angles between the cross-section center of two key bar passages and the outer tube line of centres along drilling rod.
In technique scheme; One end of said outer tube outer surface loads the position near the place, end for drilling rod; Be positioned at feather key part that said drilling rod loads the position and feather key main body 90 degree that stagger, the part that staggers links to each other through axial loading blocks, and formation has the key bar passage of bending; Make the key bar passage on top, drilling rod loading position and the key bar passage of bottom, drilling rod loading position along the circumferential direction be 90 degree angles, said axial loading blocks and feather key main body are an angle of 90 degrees.
In technique scheme, be in laying respectively between adjacent two feather keys in two key bar passages of drilling rod loading position and be connected with boss.
In technique scheme, said boss is provided with 5.
In technique scheme, the end that said outer tube is positioned at said drilling rod loading position is provided with joint from all directions, and another end is provided with the outer all directions joint that matees with said interior joint from all directions.
Compared with prior art, the advantage of the utility model is following:
(1) the utility model adopts segmentation to load design; Can be according to the different depth of piling; Classification adjustment loading position can be realized the drive unit segmentation simultaneously to drilling rod transfer torque and axial load, and the rigidity when making the piling of long drill pipe or more piece drilling rod improves; Can apply bigger axial load, and be convenient to moving axially of accessory drive.
(2) the utility model is simple in structure, can reduce the position of centre of gravity of drive unit on equipment, improves the stability of pile driving equipment.
Description of drawings
Fig. 1 is the structural representation of spline drilling rod among the utility model embodiment;
Fig. 2 is the B-B sectional view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the sketch map that spline along the circumferential direction launches among the utility model embodiment.
Among the figure: all directions joint in the 1-, 2-feather key, 3-boss, the axial loading blocks of 4-, the outer joint from all directions of 5-, pipe in the 6-outer tube, 7-, 8-pin, the upper surface of the axial loading blocks of 9-, the side of 10-feather key, 11-unit head.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe in detail.
Referring to illustrated in figures 1 and 2; The spline drilling rod that the utility model embodiment provides, it comprises outer tube 6 and interior pipe 7, said outer tube 6 is drilling rod matrixes; Pipe 7 is concrete transfer passages in said; It also comprises the spline that is made up of feather key 2, and said feather key 2 is processed by the strip steel, is welded on the external surface of said outer tube 6.Said feather key 2 is provided with four; Two feather key 2 parallel external surfaces that are distributed in outer tube 6 one sides wherein; Form a key bar passage, other two feather keys 2 are distributed in the external surface of outer tube 6 opposite sides symmetrically, form another key bar passage symmetrically; Be used for unit head 11 interior two pairs of keys and move axially, be 180 degree angles between the cross-section center of two key bar passages and outer tube 6 lines of centres along drilling rod.
Referring to Fig. 3 and shown in Figure 4; One end of said outer tube 6 external surfaces loads the position near the place, end for drilling rod; Be positioned at feather key 2 part that said drilling rod loads the position and feather key 2 main bodys 90 degree that stagger, the part that staggers links to each other through axial loading blocks 4, and formation has the key bar passage of bending; Make the key bar passage on top, drilling rod loading position and the key bar passage of bottom, drilling rod loading position along the circumferential direction be 90 degree angles, said axial loading blocks 4 and feather key 2 main bodys are an angle of 90 degrees.Be in laying respectively between adjacent two feather keys 2 in two key bar passages of drilling rod loading position and be connected with 5 bosses 3.The end that outer tube 6 is positioned at said drilling rod loading position is provided with joint 1 from all directions, and another end is provided with the outer all directions joint 5 that matees with said interior joint from all directions 1.
The principle of the utility model embodiment is set forth as follows in detail:
Spline drilling rod among the utility model embodiment is made up of interior all directions joint 1, feather key 2, boss 3, axial loading blocks 4, outer joint 5, outer tube 6, interior pipe 7 and pin 8 from all directions; All part is all by the steel manufacturing; Above part is welded into the spline drilling rod of standard; Be assembled into the drilling rod of different length as required, be connected with outer joint 5 from all directions through interior all directions joint 1 between the drilling rod, adopt the axial location between the pin 8 restriction drilling rods.Two key bar passages that feather key 2 forms are 180 ° each other, are used for unit head 11 interior two pairs of keys and move axially along drilling rod.
During use, some drilling rods are connected into the length that needs, the outer all directions joint 5 of drilling rod bottom is connected with drill bit, and the top is connected with filling device with pin 8 through interior all directions joint 1.Key can be moved up and down along two key bar passages that feather key 2 forms in the unit head 11.
Referring to shown in Figure 5; Key is moved down along 0 ° and 180 ° of key bar passages on the spline drilling rod in the unit head 11; When moving to drilling rod loading position, owing to the restriction of lower shaft to loading blocks 4, the lower surface to key on the unit head 11 contacts with the upper surface 9 of axial loading blocks 4.At this moment, unit head 11 is rotated in the forward transfer torque, and can realize axially loading downwards.If 90 ° of unit head 11 reverse rotations, 11 pairs of keys of unit head contact with the side 10 of feather key 2, and unit head 11 continuation reverse rotations also move up, and then can realize that upward axis is to loading transfer torque the time.If 90 ° of continued of unit head 11 reverse rotations move down, then get into 90 ° and 270 ° of key bar passages, reciprocal successively.For the outlet that realizes key bar passage on the last joint spline drilling rod saves the inlet butt joint of the key bar passage of spline drilling rod with next; All drilling rods all adopt identical standard spline drilling rod; Therefore, the outer all directions joint on the same spline drilling rod 5 will rotate with interior all directions joint 1 and stagger 90 °.Because from all directions joint half-twist back side is constant, what therefore show is that the orientation of pin 8 rotates.Unit head 11 moves either up or down to axial loading position and can be accomplished by position detecting device.For moving down, reverse rotation is 90 ° then, and moves down along the movement locus of spline drilling rod for unit head 11, repeats successively, and track is similar Z-shaped.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
The content of not doing in this manual to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. spline drilling rod; It comprises outer tube (6) and interior pipe (7); Said outer tube (6) is the drilling rod matrix, and said interior pipe (7) is concrete transfer passage, it is characterized in that: it also comprises the spline that is made up of feather key (2); Said feather key (2) is processed by the strip steel, is welded on the external surface of said outer tube (6).
2. spline drilling rod as claimed in claim 1; It is characterized in that: said feather key (2) is provided with four; Wherein the parallel external surface that is distributed in outer tube (6) one sides of two feather keys (2) forms a key bar passage, and two feather keys (2) are distributed in the external surface of outer tube (6) opposite side symmetrically in addition; Form another key bar passage symmetrically, be 180 degree angles between the cross-section center of two key bar passages and outer tube (6) line of centres.
3. spline drilling rod as claimed in claim 2; It is characterized in that: an end of said outer tube (6) external surface loads the position near the place, end for drilling rod; Be positioned at feather key (2) part that said drilling rod loads the position and feather key (2) main body 90 degree that stagger; The part that staggers links to each other through axial loading blocks (4); Formation has the key bar passage of bending, makes the key bar passage on top, drilling rod loading position and the key bar passage of bottom, drilling rod loading position along the circumferential direction be 90 degree angles, and said axial loading blocks (4) and feather key (2) main body are an angle of 90 degrees.
4. spline drilling rod as claimed in claim 3 is characterized in that: be in laying respectively between adjacent two feather keys (2) in two key bar passages of drilling rod loading position and be connected with boss (3).
5. spline drilling rod as claimed in claim 4 is characterized in that: said boss (3) is provided with 5.
6. spline drilling rod as claimed in claim 3 is characterized in that: the end that said outer tube (6) is positioned at said drilling rod loading position is provided with joint (1) from all directions, and another end is provided with the outer all directions joint (5) that matees with said interior joint (1) from all directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203977246U CN202273599U (en) | 2011-10-19 | 2011-10-19 | Spline drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203977246U CN202273599U (en) | 2011-10-19 | 2011-10-19 | Spline drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273599U true CN202273599U (en) | 2012-06-13 |
Family
ID=46193963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203977246U Withdrawn - After Issue CN202273599U (en) | 2011-10-19 | 2011-10-19 | Spline drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273599U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444385A (en) * | 2011-10-19 | 2012-05-09 | 武汉武船机电设备有限责任公司 | Spline drill rod |
| CN103015885A (en) * | 2012-12-28 | 2013-04-03 | 武汉武船机电设备有限责任公司 | Pile machine loading rod |
-
2011
- 2011-10-19 CN CN2011203977246U patent/CN202273599U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444385A (en) * | 2011-10-19 | 2012-05-09 | 武汉武船机电设备有限责任公司 | Spline drill rod |
| CN102444385B (en) * | 2011-10-19 | 2013-12-25 | 武汉武船机电设备有限责任公司 | Spline drill rod |
| CN103015885A (en) * | 2012-12-28 | 2013-04-03 | 武汉武船机电设备有限责任公司 | Pile machine loading rod |
| CN103015885B (en) * | 2012-12-28 | 2015-07-08 | 武汉武船机电设备有限责任公司 | Pile machine loading rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120613 Effective date of abandoning: 20131225 |
|
| RGAV | Abandon patent right to avoid regrant |