CN101942974A - Clamping device of hexagonal drill stem of drilling machine - Google Patents
Clamping device of hexagonal drill stem of drilling machine Download PDFInfo
- Publication number
- CN101942974A CN101942974A CN 201010288885 CN201010288885A CN101942974A CN 101942974 A CN101942974 A CN 101942974A CN 201010288885 CN201010288885 CN 201010288885 CN 201010288885 A CN201010288885 A CN 201010288885A CN 101942974 A CN101942974 A CN 101942974A
- Authority
- CN
- China
- Prior art keywords
- slips
- slip
- pushing block
- drill stem
- spring
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a clamping device of a hexagonal drill stem of a drilling machine, which comprises a vertical shaft and a clamping mechanism, wherein the drill stem is driven to rotate by the vertical shaft after the clamping of the clamping mechanism. The clamping device is characterized in that: the clamping mechanism comprises a slip base, slips, a slip push block, a spring and a loosening power device, wherein three slips are arranged in three slip grooves of the slip groove respectively, the slip push block is correspondingly arranged outside each slip, and the contact surfaces of each slip and the slip push block are inclined planes; the spring is arranged below the slip push block; and the loosening power device is correspondingly arranged outside the slip, and when the loosening power device acts (when oil drains), the spring in the clamping mechanism drives the slips to generate radial displacement by pushing the slip push block to move, so the drill stem is clamped. The clamping device of the invention has the advantages that: the surface hardness of the slips are improved, and wear resistance is considerably improved; in a long-time use process, the wear loss of the slips is low, and the service life of the slips is prolonged; and the three slips are symmetrically arranged on the three outsides of the hexagonal drill stem and well matched with the drill stem and drive the drill stem to rotate stably, so that the drilling machine works stably.
Description
Technical field
The present invention relates to the gripping mechanism of a kind of engineering driller (core-drill(ing) machine) drilling rod, especially drilling rod adopts the drilling rod gripping mechanism of regular hexagon structure rig.
Background technology
During engineering driller (core-drill(ing) machine) mainly is applicable to, the shallow bore hole drill hole sampling, can be used for also that engineering geologic investigation, the hydrology, well and bigbore engineering construction are crept into and the anchor hole construction, the rig of this kind structure, its drilling rod is four directions or six square shafts normally, be that end surface shape is square or regular hexagon shape, by the chucking of the monolithic slips on the gripping mechanism, drive it and rotate the rotary power that generation is crept into.Because in drilling process, drilling rod needs bigger moment of torsion to creep into, so require closely to tighten between drilling rod and the monolithic slips, both is bigger in conjunction with chucking position active force, is worn easily in conjunction with the chucking position; Because its retaining part constantly conversion when drilling rod can be changed and same drilling rod worked along with drilling depth, so the wearing and tearing that are subjected to of drilling rod are less usually, do not influence its normal construction, its working life is longer, and slips and drilling rod to combine the chucking position all be the medial surface of slips, be unconvertible, so the slips medial surface is as being subjected to very big wearing and tearing in conjunction with the chucking position during drilling construction, the time, long slightly its wearing and tearing were just bigger, it just can not tighten drilling rod and scrap, and its application life is shorter.In addition, the monolithic slips is as long as wherein part is worn or breaks, and just can only all change and scraps the corresponding running cost that increased.The 3rd, monolithic slips material is special, and making processing is cumbersome, processing cost is higher, and the quality of fit between the drilling rod also has higher requirement; Better at the use initial stage with cooperating of drilling rod, make the drilling rod running steadily, and the drilling rod running of wearing and tearing back is just not steady a little.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of the gripping mechanism of prior art borer drill rod, provide that a kind of wear extent is little, long service life, price are lower, cooperate better and the gripping mechanism of the rig hexagonal kelly of even running with drilling rod.
Technical scheme of the present invention: the gripping mechanism of rig hexagonal kelly, comprise vertical shaft and clamping body, can drive drilling rod by vertical shaft behind the clamping body chucking and rotate; It is characterized in that: described clamping body, comprise slip spider, slips, slips pushing block, spring and unclamp power set, described slips is three, is separately positioned in three slip grooves of slip spider, every slips outside correspondence the slips pushing block is set, the contact surface of slips and slips pushing block is the inclined-plane; Below the slips pushing block, be provided with spring; The corresponding setting unclamped power set in the slips outside, and when unclamping the power set action (during draining), the spring in the clamping body moves by promoting the slips pushing block, drives slips and produces radial displacement, to clamp drilling rod.
Further feature is: described slips, by the slips body and at least a slice alloy sheet constitute; Side at the slips body is provided with groove, and alloy sheet is welded in the groove, and the height of alloy sheet is higher than the slips body; Opposite side at the slips body is provided with the inclined-plane.
Pressing plate is set in slips outside, and detachable connection the between pressing plate and the slips, the inclined-plane cooperates between pressing plate and the slips pushing block; Piston block is set in unclamping power set, and piston block cooperates with the slips pushing block, and piston block promotes the slips pushing block and moves.
The gripping mechanism of rig hexagonal kelly of the present invention with respect to prior art, has following characteristics:
1, the slips case hardness is improved, and abrasion resistance significantly improves; In long-term use, the wear extent of slips is all less, can prolong its application life;
2, three slips are arranged symmetrically on three lateral surfaces of hexagonal kelly, with the drilling rod no-float, drive the drilling rod smooth rotation, the rig stable working;
3, the monolithic slips is easy to make, simple, and cost of manufacture is relatively low, tears open in user's use
Unload convenience, change easily.
Description of drawings
Fig. 1 is a gripping mechanism structure sectional view of the present invention;
Fig. 2 is that N-N of Fig. 1 is to sectional view (three slips and hexagonal kelly chucking structure);
Fig. 3 is a slips structural representation of the present invention;
Fig. 4 is the left view of Fig. 3
The specific embodiment
In Fig. 1,2, the gripping mechanism of rig hexagonal kelly of the present invention, comprise vertical shaft 1 and clamping body 2, described vertical shaft 1 and clamping body 2 are arranged in the housing of rig, clamping body 2 is installed on the vertical shaft 1, and chucking drilling rod (not drawing among the figure) back drives drilling rod rotation generation by vertical shaft 1 rotation and creeps into power.Described clamping body 2, comprise slips 3, slips pushing block 4, spring 5, unclamp power set 6 and slip spider 9, described slips 3 is three, be separately positioned in three slip grooves of slip spider 9, three slips 3 are separately positioned on three adjacent edges of regular hexagon drilling rod during assembling, in every slips 3 outside correspondences slips pushing block 4 is set, slips 3 is inclined-planes with the contact surface of slips pushing block 4, it shown in the figure inclined-plane that outside the center of vertical shaft 1, tilts, when slips 3 slides on the inclined-plane of slips pushing block 4, slips 3 can produce radial displacement, to clamp or to unclamp slips; Below slips pushing block 4, be provided with spring 5, spring 5 supporting slips 3 and slips pushing block 4, spring 5 selects for use butterfly spring to have excellent elasticity usually; The corresponding setting unclamped power set 6 in every slips 3 outsides, unclamps power set 6 and selects hydraulic jack, cylinder etc. usually for use; When unclamping power set 6 action when oil-filled (), produce downward active force for slips pushing block 4, promoting slips pushing block 4 moves down, because slips 3 is that the inclined-plane contacts with slips pushing block 4, slips pushing block 4 is when compression spring 5 moves downward, promotion slips 3 produces to move radially in the slip groove of slip spider 9 and breaks away from drilling rod (not drawing among the figure), and drilling rod no longer rotates.When unclamping power set 6 drainings, because slips pushing block 4 no longer is subjected to the effect of hydraulic oil, under the elastic force effect of spring 5, slips pushing block 4 up moves, because slips 3 is that the inclined-plane contacts with slips pushing block 4, when slips pushing block 4 up moved, promotion slips 3 produced in the slip groove of slip spider 9 and moves radially the chucking drilling rod, rotated (three slips 3 are to rotate by the drive of vertical shaft 1) thereby drive drilling rod.
Among the figure, for slips 3 moves flexibly, no-float is provided with pressing plate 7 in slips 3 outsides each other, and detachable connection the between pressing plate 7 and the slips 3, slips 3 cooperates by inclined-plane between pressing plate 7 and the slips pushing block 4.Piston block 8 is set in unclamping power set 6, and piston block 8 cooperates with slips pushing block 4; Unclamp power set 6 when oil-filled, at first promote piston block 8 and move down, piston block 8 promotes slips pushing block 4 again and moves down, and promotes slips 3 and produces moving radially away from drilling rod.By pressing plate 7 is set, slips 3, slips pushing block 4 can conveniently be set in rig, unclamp parts such as power set 6, can simplify the fit structure between slips 3, the slips pushing block 4, simplify the process of slips 3, reduce its heat treatment requirements.
In Fig. 3,4, slips 3 of the present invention is made of the slips body 31 and the alloy sheet 32 of metal, and alloy sheet 32 is a slice at least, is four described in the figure, and slips body 31 is selected 45 steel usually for use, and alloy sheet 32 is selected the YG8 steel usually for use; Side at slips body 31 is provided with groove 33, alloy sheet 32 is welded in the groove 33 of slips body 31, firmly links into an integrated entity by brazing etc., and the height of alloy sheet 32 is higher than slips body 31, generally exceed 1～3 ㎜, make alloy sheet 32 when work, can contact and tighten with drilling rod; Opposite side at slips body 31 is provided with inclined-plane 34, the inclination angle on this inclined-plane 34 is generally between 5～20 degree, guarantee slips 3 and slips pushing block 4(or pressing plate 7 and slips pushing block 4) between contact with the inclined-plane, can obtain the chucking effect of excellence, guarantee the wearing and tearing reduction of the alloy sheet 32 of slips 3 simultaneously.
Claims (3)
1. the gripping mechanism of rig hexagonal kelly comprises vertical shaft (1) and clamping body (2), can pass through vertical shaft (1) behind clamping body (2) the chucking drilling rod and drive the drilling rod rotation; It is characterized in that: described clamping body (2), comprise slips (3), slips pushing block (4), spring (5), unclamp power set (6) and slip spider (9), described slips (3) is three, be separately positioned in three slip grooves of slip spider (9), correspondence is provided with slips pushing block (4) in every slips (3) outside, and slips (3) is the inclined-plane with the contact surface of slips pushing block (4); Below slips pushing block (4), be provided with spring (5), when unclamping power set (6) action, utilize the elastic force promotion slips pushing block (4) of spring (5) to move up, drive slips (3) produces in the slip groove of slip spider (9) and moves radially, to clamp drilling rod.
2. according to the gripping mechanism of the described rig hexagonal kelly of claim 1, it is characterized in that: described slips (3), by slips body (31) and at least a slice alloy sheet (32) constitute; Side at slips body (31) is provided with groove (33), and alloy sheet (32) is welded in the groove (33), and the height of alloy sheet (32) is higher than slips body (31); Opposite side at slips body (31) is provided with inclined-plane (34).
3. according to the gripping mechanism of claim 1 or 2 described rig hexagonal kellies, it is characterized in that: pressing plate (7) is set in slips (3) outside, the detachable connection between pressing plate (7) and the slips (3), the inclined-plane cooperates between pressing plate (7) and the slips pushing block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288885 CN101942974A (en) | 2010-09-21 | 2010-09-21 | Clamping device of hexagonal drill stem of drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288885 CN101942974A (en) | 2010-09-21 | 2010-09-21 | Clamping device of hexagonal drill stem of drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101942974A true CN101942974A (en) | 2011-01-12 |
Family
ID=43435156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010288885 Pending CN101942974A (en) | 2010-09-21 | 2010-09-21 | Clamping device of hexagonal drill stem of drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101942974A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089171A (en) * | 2013-01-18 | 2013-05-08 | 杭州祥龙钻探设备有限公司 | Double-hydraulic chuck for coal mine underground drill rig |
| CN104265202A (en) * | 2014-10-17 | 2015-01-07 | 中国石油大学(华东) | Hydraulic-controlled automatic slip |
| CN105134106A (en) * | 2015-08-18 | 2015-12-09 | 安徽贝利机械制造有限公司 | Automatic centering hydraulic chuck device for core drills |
| CN106351593A (en) * | 2015-11-05 | 2017-01-25 | 衡阳中地装备探矿工程机械有限公司 | Drill pipe slip structure capable of retreating |
| CN111395985A (en) * | 2020-04-10 | 2020-07-10 | 长江岩土工程总公司（武汉） | Drill rod three-jaw clamp and using method thereof |
| CN113153139A (en) * | 2021-05-24 | 2021-07-23 | 陈志红 | Miniature mountain drilling machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6394201B1 (en) * | 1999-10-04 | 2002-05-28 | Universe Machine Corporation | Tubing spider |
| CN2830631Y (en) * | 2005-11-15 | 2006-10-25 | 江苏如东通用机械有限公司 | Novel pneumatic chuck |
| CN201258701Y (en) * | 2008-09-08 | 2009-06-17 | 浙江杭钻机械制造股份有限公司 | Combined hydraulic clamping chuck |
-
2010
- 2010-09-21 CN CN 201010288885 patent/CN101942974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6394201B1 (en) * | 1999-10-04 | 2002-05-28 | Universe Machine Corporation | Tubing spider |
| CN2830631Y (en) * | 2005-11-15 | 2006-10-25 | 江苏如东通用机械有限公司 | Novel pneumatic chuck |
| CN201258701Y (en) * | 2008-09-08 | 2009-06-17 | 浙江杭钻机械制造股份有限公司 | Combined hydraulic clamping chuck |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089171A (en) * | 2013-01-18 | 2013-05-08 | 杭州祥龙钻探设备有限公司 | Double-hydraulic chuck for coal mine underground drill rig |
| CN104265202A (en) * | 2014-10-17 | 2015-01-07 | 中国石油大学(华东) | Hydraulic-controlled automatic slip |
| CN105134106A (en) * | 2015-08-18 | 2015-12-09 | 安徽贝利机械制造有限公司 | Automatic centering hydraulic chuck device for core drills |
| CN106351593A (en) * | 2015-11-05 | 2017-01-25 | 衡阳中地装备探矿工程机械有限公司 | Drill pipe slip structure capable of retreating |
| CN111395985A (en) * | 2020-04-10 | 2020-07-10 | 长江岩土工程总公司（武汉） | Drill rod three-jaw clamp and using method thereof |
| CN111395985B (en) * | 2020-04-10 | 2023-08-18 | 长江岩土工程有限公司 | Three-jaw drill rod clamp holder and use method thereof |
| CN113153139A (en) * | 2021-05-24 | 2021-07-23 | 陈志红 | Miniature mountain drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101942974A (en) | Clamping device of hexagonal drill stem of drilling machine | |
| CN101091995B (en) | Combined boring head for deep hole | |
| CN104493211A (en) | Shaft workpiece clamping device | |
| CN105215417A (en) | Hole-drilling system | |
| CN203669746U (en) | Drilling hydraulic oscillator | |
| CN100411783C (en) | Many-headed driller | |
| CN104234632B (en) | A kind of bottom expanding drill | |
| CN201794533U (en) | Slip for square drill rod of drilling machine | |
| CN107627131A (en) | A kind of transversely movable cylindrical sleeves clamping borehole drill construction of drill bit | |
| CN101362220A (en) | Drill frock positioner of motor bed plate end-face hole | |
| CN202377806U (en) | Shaft clamp | |
| CN202388069U (en) | Self-centering double-station circular rack gear milling clamp | |
| CN201013269Y (en) | Lever-type hydraulic chuck | |
| CN2633524Y (en) | Positioning pin detaching device for circuit board drilling machine | |
| CN210848164U (en) | Hard alloy cold heading mould with protection function | |
| CN211940173U (en) | Carbide blade face grinding machine | |
| CN106181666B (en) | A kind of deburring machine and its fixture | |
| CN213573939U (en) | Drilling machine for water conservancy construction | |
| CN111425144A (en) | Polycrystalline diamond compact and drill bit | |
| CN212217859U (en) | Major diameter drilling tool tooth's socket processingequipment | |
| CN204284196U (en) | Low friction resistance high abrasion list is to PDC composite sheet thrust bearing | |
| CN216339796U (en) | Square drill rod and corresponding inner sleeve and outer sleeve | |
| CN205314922U (en) | Wing formula composite drill bit | |
| CN212495712U (en) | Broaching machine broach fixing tool | |
| CN205464587U (en) | Big multi -functional saw of pivot angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110112 |