CN102287145A - Rock drilling rod thimble - Google Patents
Rock drilling rod thimble Download PDFInfo
- Publication number
- CN102287145A CN102287145A CN2011102012635A CN201110201263A CN102287145A CN 102287145 A CN102287145 A CN 102287145A CN 2011102012635 A CN2011102012635 A CN 2011102012635A CN 201110201263 A CN201110201263 A CN 201110201263A CN 102287145 A CN102287145 A CN 102287145A
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- outer shroud
- ring
- external diameter
- aperture
- interior ring
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Abstract
The invention relates to a rock drilling rod thimble, which belongs to the technical field of drilling and blasting. The thimble consists of an inner ring and an outer ring, wherein an inner layer is a movable ring; an outer layer is a static ring; and the inner ring and the outer ring form a rotary pair. During rock drilling, the thimble is sleeved on a drill rod, and is embedded into an orifice. Due to the adoption of the rock drilling rod thimble, the friction effect between the drill rod and the orifice during the rotation and axial movement of the drill rod can be reduced, the rock drilling energy consumption is lowered, and the rock drilling efficiency is improved.
Description
Technical field
The present invention relates to a kind of drill rod collar, particularly a kind of rock drilling aperture drill steel collar belongs to the driling explosion technical field.
Background technology
At ore extraction, in tunnel piercing and other the relevant civil works operation process, rock drilling boring is common cargo handling operation, in the hammer drill rock drilling process, usually adopt and impact the rotation pore-forming, drill steel produces friction with hole wall inevitably in rotary course, when especially adopting pusher leg drill, the radial constraint power of rock drilling head, remove axial and head at air leg, the axial coplane of drill steel, and outside on the direction of air leg side, providing by air leg, the restraint forces of other direction is if relying on the operating personnel provides extremely difficult with manpower and realize, normally by the big gun hole restraint forces of drill steel provided indirectly, in the case, the strong friction of drill steel and big gun hole wall will be inevitable, especially more obvious at the place, aperture, and the phenomenon of knocking in drill steel and aperture takes place at random, thus reduce the rock drilling pore-forming efficiency.
Summary of the invention
Technical problem to be solved by this invention provides a kind of rock drilling aperture drill steel collar, and it can reduce friction effect, the especially drill steel of drill steel and big gun hole wall and the friction effect in big gun aperture greatly.
The technical solution adopted in the present invention is: the collar is made up of interior ring 2 and the outer shroud 1 that is placed on the interior ring, one end (outer end of hole) of outer shroud 1 and interior ring 2 is raised with a baffle ring (slip into the big gun hole and be difficult to draw off to avoid the collar to embed big gun hole or interior ring fully) respectively, the bore profile shape of interior ring 2 is consistent with drill steel, interior ring cooperates formation revolute pair (during drill steel rock drilling operation, being similar to sliding bearing) with outer shroud.
The external diameter of described outer shroud 1 is slightly less than aperture, big gun hole (being as the criterion more closely embedding the aperture), the external diameter of its termination projection baffle ring is greater than the aperture (being difficult to draw off to avoid the collar to embed the big gun hole fully) in big gun hole, the bore profile size of interior ring 2 is slightly larger than the drill steel size (so that under its condition that can slide relatively smoothly vertically, cooperate closely with drill steel as much as possible), external diameter is slightly less than the internal diameter (ring can rotate in making) of outer shroud 1 in the outer shroud endoporus, in, the gross thickness of outer shroud is equivalent to the difference (drill bit diameter is depended in aperture, big gun hole) of aperture, big gun hole and drill steel external diameter.
The external surface of described outer shroud 1 is along the axial notch (section is circle or rectangle etc.) that circumferentially evenly has more than 3, and the external diameter of interior ring 2 termination baffle rings is less than the external diameter of outer shroud 1 termination baffle ring, to guarantee the discharge of rock dust (dry drilling) or magma.The axial length of the whole collar is that the concrete length of 50mm～100mm(is regarded the local planeness of industry work plane boring as and decided, and smooth more, length can be more little).
Collar material can adopt the alloy material that abrasion resistance is better, intensity is higher, also can adopt the nonmetals with respective performances.During the rock drilling operation, earlier the collar is set on the drill steel, bore bit is installed again, when boring reaches appropriate depth, suspend Drilling, the collar is pushed the big gun aperture, continue boring, the collar is started working.
The invention has the beneficial effects as follows: in the rock drilling operation process, adopt the rock drilling aperture drill steel collar, the revolute pair of utilizing inner and outer ring to form is avoided knocking and strong friction of drill steel and big gun aperture, improve rock penetration performance, and can reduce operating personnel's labour intensity to a certain extent.
Description of drawings
Fig. 1 is a schematic perspective view of the present invention;
Fig. 2 is a longitudinal plan of the present invention;
Fig. 3 is a working state schematic representation of the present invention;
Each label is among the figure: ring, 3-plasma discharge groove, 4-drill steel, 5-big gun hole, 6-bore bit in 1-outer shroud, the 2-.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated, but receiving part is limited to described scope in of the present invention.
Embodiment 1: shown in Fig. 1,2 and 3, the collar is made up of interior ring 2 and the outer shroud 1 that is placed on the interior ring, one end (outer end of hole) of outer shroud 1 and interior ring 2 is raised with a baffle ring respectively, and the bore profile of interior ring 2 is the circle consistent with drill steel, and interior ring cooperates the formation revolute pair with outer shroud.The external diameter of outer shroud 1 can more closely embed the aperture less than big gun hole aperture 1mm(), the external diameter of its termination projection baffle ring is greater than the aperture in big gun hole, in ring 2 bore profile size greater than drill steel size 0.2mm, external diameter internal diameter 0.5mm less than outer shroud 1, the gross thickness of inner and outer rings is equivalent to the difference of aperture, big gun hole and drill steel external diameter.The external surface of outer shroud 1 is along circumferentially evenly having 3 axial notches (section is the semicircle of radius 8mm), and the external diameter of interior ring 2 termination baffle rings is less than the external diameter 10mm of outer shroud 1 termination baffle ring, to guarantee the discharge of rock dust (dry drilling).The axial length of the whole collar is 50mm, adopts abrasion resistance alloy material better, that intensity is higher to make.
Embodiment 2: shown in Fig. 1,2 and 3, the collar is made up of interior ring 2 and the outer shroud 1 that is placed on the interior ring, one end (outer end of hole) of outer shroud 1 and interior ring 2 is raised with a baffle ring respectively, and the bore profile of interior ring 2 is the hexagon consistent with drill steel, and interior ring cooperates the formation revolute pair with outer shroud.The external diameter of outer shroud 1 can more closely embed the aperture less than big gun hole aperture 1.5mm(), the external diameter of its termination projection baffle ring is greater than the aperture in big gun hole, in ring 2 bore profile size greater than drill steel size 0.15mm, external diameter internal diameter 0.3mm less than outer shroud 1, the gross thickness of inner and outer rings is equivalent to the difference of aperture, big gun hole and drill steel external diameter.The external surface of outer shroud 1 is along circumferentially evenly having 4 axial notches (section is the square of degree of depth 3mm), and the external diameter of interior ring 2 termination baffle rings is less than the external diameter 8mm of outer shroud 1 termination baffle ring, to guarantee the discharge of magma.The axial length of the whole collar is 100mm, adopts abrasion resistance alloy material better, that intensity is higher to make.
Embodiment 3: shown in Fig. 1,2 and 3, the collar is made up of interior ring 2 and the outer shroud 1 that is placed on the interior ring, one end (outer end of hole) of outer shroud 1 and interior ring 2 is raised with a baffle ring respectively, and the bore profile of interior ring 2 is the circle consistent with drill steel, and interior ring cooperates the formation revolute pair with outer shroud.The external diameter of outer shroud 1 can more closely embed the aperture less than big gun hole aperture 0.8mm(), the external diameter of its termination projection baffle ring is greater than the aperture in big gun hole, in ring 2 bore profile size greater than drill steel size 0.1mm, external diameter internal diameter 0.2mm less than outer shroud 1, the gross thickness of inner and outer rings is equivalent to the difference of aperture, big gun hole and drill steel external diameter.The external surface of outer shroud 1 is along circumferentially evenly having 6 axial notches (section is the square of degree of depth 3mm), and the external diameter of interior ring 2 termination baffle rings is less than the external diameter 12mm of outer shroud 1 termination baffle ring, to guarantee the discharge of rock dust.The axial length of the whole collar is 70mm, adopts abrasion resistance nonmetals better, that intensity is higher to make.
Claims (4)
1. drill rod collar, it is characterized in that: the outer shroud (1) that the collar encircles by interior ring (2) with in being placed in is formed, one end of outer shroud (1) and interior ring (2) is raised with a baffle ring respectively, and the bore profile shape of interior ring (2) is consistent with drill steel, and interior ring cooperates the formation revolute pair with outer shroud.
2. the drill rod collar according to claim 1, it is characterized in that: the external diameter of outer shroud (1) is slightly less than the aperture of the external diameter of aperture, big gun hole, its termination projection baffle ring greater than the big gun hole, in the bore profile size of ring (2) be slightly larger than the internal diameter that drill steel size, external diameter are slightly less than outer shroud (1), the gross thickness of inner and outer rings is equivalent to the difference of aperture, big gun hole and drill steel external diameter.
3. the drill rod collar according to claim 1 and 2 is characterized in that: the external surface of outer shroud (1) is along the axial notch that circumferentially evenly has more than 3, and the external diameter of interior ring (2) termination baffle ring is less than the external diameter of outer shroud (1) termination baffle ring.
4. according to claim 1, the 2 or 3 described drill rod collars, it is characterized in that: the axial length of the whole collar is 50mm～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012635A CN102287145A (en) | 2011-07-19 | 2011-07-19 | Rock drilling rod thimble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012635A CN102287145A (en) | 2011-07-19 | 2011-07-19 | Rock drilling rod thimble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287145A true CN102287145A (en) | 2011-12-21 |
Family
ID=45333869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102012635A Pending CN102287145A (en) | 2011-07-19 | 2011-07-19 | Rock drilling rod thimble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287145A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA963889A (en) * | 1973-08-23 | 1975-03-04 | Bralorne Resources Limited | Drill steel idler guide |
| US4572589A (en) * | 1984-04-12 | 1986-02-25 | Western Rock Bit Company Limited | Journal bearing |
| US4943172A (en) * | 1989-03-30 | 1990-07-24 | Drilco Industrial, Inc. | Drill deck bushing |
| US4964475A (en) * | 1988-01-28 | 1990-10-23 | Fischerwerke Artur Fischer Gmbh & Co Kg | Drilling device for producing drill holes with undercut |
| CN200958376Y (en) * | 2006-09-06 | 2007-10-10 | 中国人民解放军63983部队 | Guide mechanism of drilling rig |
| CN202176276U (en) * | 2011-07-19 | 2012-03-28 | 昆明理工大学 | Lantern ring for rock-drilling drill rod |
-
2011
- 2011-07-19 CN CN2011102012635A patent/CN102287145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA963889A (en) * | 1973-08-23 | 1975-03-04 | Bralorne Resources Limited | Drill steel idler guide |
| US4572589A (en) * | 1984-04-12 | 1986-02-25 | Western Rock Bit Company Limited | Journal bearing |
| US4964475A (en) * | 1988-01-28 | 1990-10-23 | Fischerwerke Artur Fischer Gmbh & Co Kg | Drilling device for producing drill holes with undercut |
| US4943172A (en) * | 1989-03-30 | 1990-07-24 | Drilco Industrial, Inc. | Drill deck bushing |
| CN200958376Y (en) * | 2006-09-06 | 2007-10-10 | 中国人民解放军63983部队 | Guide mechanism of drilling rig |
| CN202176276U (en) * | 2011-07-19 | 2012-03-28 | 昆明理工大学 | Lantern ring for rock-drilling drill rod |
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| 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: 20111221 |