CN203531799U - Holder for drilling machine - Google Patents
Holder for drilling machine Download PDFInfo
- Publication number
- CN203531799U CN203531799U CN201320710948.7U CN201320710948U CN203531799U CN 203531799 U CN203531799 U CN 203531799U CN 201320710948 U CN201320710948 U CN 201320710948U CN 203531799 U CN203531799 U CN 203531799U
- Authority
- CN
- China
- Prior art keywords
- slips
- annular hydraulic
- piston
- rear end
- clamper
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A holder for a drilling machine comprises a cylindrical casing, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are arranged at two ends of the casing respectively and both provided with a central through hole. The holder at least comprises two slips for holding drilling rods and an annular hydraulic cylinder, a piston of the annular hydraulic cylinder surrounds the slips and is installed in the casing, two ends of the slips abut against the front end cover and the rear end cover to prevent the slips from axially sliding, the slips and the piston of the annular hydraulic cylinder are provided with matched inclined surfaces, and the annular hydraulic cylinder drives the slips to radially move through axial sliding of the piston so as to clamp the drilling rods. The holder is reasonable in structural design, and by means of the annular hydraulic cylinder, a radial force directly applied to the slips is changed into an axial force of the piston to be applied to side walls of the slips so as to enable the slips to radially move, so that the problem that the slips are prone to be damaged is effectively solved, meanwhile, service life of the slips is prolonged, work efficiency is improved, and costs are saved.
Description
Technical field
The utility model relates to a kind of clamper device, especially relates to a kind of clamper for rig.
Background technology
Gas probing is to survey to compose to be stored in from being conigenous storage formula coal bed methane gas, to claim that again device in Gas is the drilling project that object is carried out in subterranean coal, during generally for common coal seam, adopt round bur bar drill hole, but the requirement along with coal mining, more and more higher to weak seam boring requirement, can effectively solve weak seam boring needs to adopt the special drill pipe such as the shallow auger stem of wide blade or Three-edged drill stem.The feature of these special drill pipe maximums is non-circular surfaces shapes, and therefore the common clamping device for the common round bur bar of clamping is difficult to meet instructions for use, can not effectively clamp.Existing rig, when using special-shaped drilling rod, generally adopts common chuck clamping round bur bar as kelly, with kelly, connects special-shaped drilling rod and the mode that the moment of torsion of rig and slide force pass to special-shaped drilling rod is crept into.During dismounting drilling rod, adopt the mode of manpower manual dismounting, drilling efficiency is low, boring is long non-cutting time, workman's operational danger is large, for this, the inventor once designed the multi-functional clamp that a kind of patent No. is a kind of rig of 201310170958.0, go for the drilling rod of plurality of specifications shape, clamping and easy to loading and unloading quick, this multi-functional clamp is that the piston of hydraulic cylinder directly acts radially on slips and clamps drilling rod, but the mode of active force is to slips damage comparison severity, make to need frequent replacing, not only increased cost but also inefficiency.
Utility model content
The purpose of this utility model is the deficiency for solving the problems of the technologies described above, and a kind of clamper for rig is provided, and has solved the direct radial force of slips and has held flimsy problem.
The utility model is the deficiency solving the problems of the technologies described above, and the technical scheme adopting is:
A kind of clamper for rig, comprise housing cylindraceous and the drive end bearing bracket and the rear end cap that are separately positioned on its two ends, described drive end bearing bracket and rear end cap all have a central through hole, described clamper is at least provided with two slips for holding drill pipe and an annular hydraulic fluid cylinder, the piston of annular hydraulic fluid cylinder surrounds slips and is arranged in housing, slips two ends are pushed up respectively and are located on drive end bearing bracket and rear end cap to stop slips to endwisely slip, slips has with the piston of annular hydraulic fluid cylinder the inclined-plane matching, annular hydraulic fluid cylinder drives slips radial motion with clamping drilling rod by endwisely slipping of its piston.
Described drive end bearing bracket and rear end cap are all bolted on housing.
After slips docking in described clamper, be a Rotary-table with central through hole, the bus of this Rotary-table and the angle of its axis are 8-12 ° of angle.
The piston of described annular hydraulic fluid cylinder is for driving the work plane of slips radial motion to be the surface of revolution of a taper, and the bus of this surface of revolution and its axis are 8-12 ° of angle.
The beneficial effects of the utility model are: the utility model reasonable in design, by an annular hydraulic fluid cylinder, change the radial load being directly subject to of slips into axial force by piston, act on slips sidewall and make slips radial motion, effectively solve slips and held flimsy problem, improve the application life of slips simultaneously, thereby heightened operating efficiency, and saved cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Graphical indicia: 1, housing; 2, drive end bearing bracket; 3, annular hydraulic fluid cylinder; 4, slips; 5, rear end cap.
The specific embodiment
Shown in figure, the specific embodiment is as follows:
A kind of clamper for rig, comprise housing 1 cylindraceous and the drive end bearing bracket 2 and the rear end cap 5 that are separately positioned on its two ends, described drive end bearing bracket 2 and rear end cap 5 all have a central through hole, described clamper is at least provided with two slips 4 for holding drill pipe and an annular hydraulic fluid cylinder 3, the piston of annular hydraulic fluid cylinder 3 surrounds slips 4 and is arranged in housing 1, slips 4 two ends are pushed up respectively and are located on drive end bearing bracket 2 and rear end cap 5 to stop slips 4 to endwisely slip, slips 4 has with the piston of annular hydraulic fluid cylinder 3 inclined-plane matching, annular hydraulic fluid cylinder 3 drives slips 4 radial motions with clamping drilling rod by endwisely slipping of its piston.
Described drive end bearing bracket 2 and rear end cap 5 are all bolted on housing 1.
After slips 4 docking in described clamper, be a Rotary-table with central through hole, the bus of this Rotary-table and the angle of its axis are 8-12 ° of angle, when angle is 10 ° of angles, and best results.
The piston of described annular hydraulic fluid cylinder 3 is for driving the work plane of slips 4 radial motions to be the surface of revolution of a taper, and the bus of this surface of revolution and its axis are 8-12 ° of angle, when angle is 10 ° of angles, and best results.
The technical scheme that the utility model is cited and embodiment are not restrictions, in the cited technical scheme of the utility model and embodiment is equal to or effect same approach is all protected at the utility model scope.
Claims (4)
1. the clamper for rig, comprise housing cylindraceous (1) and be separately positioned on drive end bearing bracket (2) and the rear end cap (5) at its two ends, described drive end bearing bracket (2) and rear end cap (5) all have a central through hole, it is characterized in that: described clamper is at least provided with two slips for holding drill pipe (4) and an annular hydraulic fluid cylinder (3), the piston of annular hydraulic fluid cylinder (3) surrounds slips (4) and is arranged in housing (1), slips (4) two ends are pushed up respectively and are located on drive end bearing bracket (2) and rear end cap (5) to stop slips (4) to endwisely slip, slips (4) has with the piston of annular hydraulic fluid cylinder (3) inclined-plane matching, annular hydraulic fluid cylinder (3) drives slips (4) radial motion with clamping drilling rod by endwisely slipping of its piston.
2. a kind of clamper for rig according to claim 1, is characterized in that: described drive end bearing bracket (2) and rear end cap (5) are all bolted on housing (1).
3. a kind of clamper for rig according to claim 1, is characterized in that: after the slips in described clamper (4) docking, be a Rotary-table with central through hole, the bus of this Rotary-table and the angle of its axis are 8-12 ° of angle.
4. a kind of clamper for rig according to claim 1, it is characterized in that: the piston of described annular hydraulic fluid cylinder (3) is used for driving the work plane of slips (4) radial motion to be the surface of revolution of a taper, and the bus of this surface of revolution and its axis are 8-12 ° of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710948.7U CN203531799U (en) | 2013-11-12 | 2013-11-12 | Holder for drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710948.7U CN203531799U (en) | 2013-11-12 | 2013-11-12 | Holder for drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531799U true CN203531799U (en) | 2014-04-09 |
Family
ID=50418021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320710948.7U Expired - Lifetime CN203531799U (en) | 2013-11-12 | 2013-11-12 | Holder for drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626080A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Work rod introducing device, operation arm and underground excavation trolley |
| CN109826572A (en) * | 2019-03-01 | 2019-05-31 | 冀凯河北机电科技有限公司 | A kind of automatically continuously drilling drill carriage clamper |
-
2013
- 2013-11-12 CN CN201320710948.7U patent/CN203531799U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626080A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Work rod introducing device, operation arm and underground excavation trolley |
| CN109826572A (en) * | 2019-03-01 | 2019-05-31 | 冀凯河北机电科技有限公司 | A kind of automatically continuously drilling drill carriage clamper |
| CN109826572B (en) * | 2019-03-01 | 2024-02-27 | 冀凯河北机电科技有限公司 | Clamp holder for automatic continuous drilling drill carriage |
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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: 20140409 |
|
| CX01 | Expiry of patent term |