CN202181850U - Air-leg type rock drill with angle limiting device - Google Patents
Air-leg type rock drill with angle limiting device Download PDFInfo
- Publication number
- CN202181850U CN202181850U CN2011202539884U CN201120253988U CN202181850U CN 202181850 U CN202181850 U CN 202181850U CN 2011202539884 U CN2011202539884 U CN 2011202539884U CN 201120253988 U CN201120253988 U CN 201120253988U CN 202181850 U CN202181850 U CN 202181850U
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- Prior art keywords
- thread
- drill
- air
- leg
- limiting device
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- Expired - Fee Related
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- 239000011435 rock Substances 0.000 title abstract description 13
- 238000005553 drilling Methods 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005422 blasting Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to an air-leg type rock drill with an angle limiting device, which belongs to the technical field of rock drilling and blasting. The angle limiting device is composed of a limiting nut and an axial sliding pair formed by a thread drawing rod and a bearing support. The angle limiting device can limit changing of the angle formed by a rock drill body and an air leg, and can avoid drill rod bending caused by component force of air leg thrust in the vertical direction and intense friction to a blast hole, thereby reducing working intensity of operating staffs, lowering energy consumption in rock drilling and improving rock drilling efficiency.
Description
Technical field
The utility model relates to a kind of pusher leg drill, and particularly a kind of pusher leg drill with the limit angle apparatus belongs to the driling explosion technical field.
Background technology
In ore extraction, tunnel piercing and other relevant civil works operation process, rock drilling boring is common cargo handling operation, in pusher leg drill rock drilling process; The end thrust of hammer drill and drill steel is provided by air leg since air leg axially and hammer drill axially in a certain angle, the thrust that air leg provides is decomposed into the end thrust of hammer drill and drill steel and perpendicular to this axial component; This vertical stress component cause drill steel in respective direction in big gun port wall strong friction; And often cause drill steel crooked (bending of drill steel must cause the angle that air leg is axial and hammer drill is axial to increase), thus cause end thrust to lose efficacy significantly, for avoiding this problem; The operating personnel adopts the manpower means to overcome this vertical stress component usually; But labour intensity is excessive, the effect extreme difference, thereby reduced the rock drilling pore-forming efficiency.
Summary of the invention
The utility model technical problem to be solved provides a kind of pusher leg drill with the limit angle apparatus; Angle axial with the restriction air leg and that hammer drill is axial increases; Thereby the drill steel that the vertical stress component that can avoid air leg to provide causes is crooked, and reduces the friction effect in drill steel and big gun aperture.
The technical scheme that the utility model adopted is: the limit angle apparatus is housed between hammer drill and air leg; The limit angle apparatus is made up of thread 1, bearing support 2 and stop nut 3, and bearing support 2 is positioned on the hammer drill handle 4, is connected with revolute pair with hammer drill handle 4; The non-threaded end of thread 1 is connected with air leg with the mode of revolute pair (hinge or anchor ear add hinged); The end of thread is set in the bearing support 2, and is fixing through stop nut 3, and can endwisely slip.Thread 1 constitutes the pair that endwisely slips with bearing support 2.The screw thread of thread 1 adopts rectangle or trapezoidal, and cooperates with corresponding stop nut 3.
Maximum angle when the end of thread of thread 1 is regulated air legs with hammer drill body and drill steel work with stop nut 3 limiting the increase of this angle, thereby prevents the drill steel bending.Because along with the propelling of boring, the angle that air leg and hammer drill body and screw thread drill steel are 1 reduces gradually, for keeping the following state at limit angle, stop nut 3 can adopt the form of band ear, operates with the convenient working personnel adjustment.Because in the rock drilling process, along with the propelling of boring, the operating personnel generally can not move the body fulcrum far away of air leg at any time, thereby the angle between air leg and hammer drill body and drill steel can reduce gradually thereupon, therefore device can not reduce to retrain to this angle.
The beneficial effect of the utility model is: in the rock drilling operation process; Owing to lean on mechanical restriction hammer drill body and drill steel angle axial and that support between air leg to increase, thereby prevent that drill steel is crooked, alleviates operating personnel's labour intensity; Strengthen the reliability that prevents that drill steel is crooked, improve rock penetration performance.
Description of drawings
Fig. 1 is the schematic perspective view of the utility model;
Fig. 2 is the work sketch map of the utility model.
Each label is among the figure: pull bar 1, bearing support 2, stop nut 3, hammer drill handle 4.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is done further to set forth, but the interior receiving part of the utility model is limited to said scope.
Embodiment 1: shown in Fig. 1-2, the limit angle apparatus is housed between hammer drill and air leg, the limit angle apparatus is made up of thread 1, bearing support 2 and stop nut 3; Bearing support 2 is positioned on the hammer drill handle 4; Be connected with revolute pair with hammer drill handle 4, the non-threaded end of thread 1 is connected with air leg with the mode of revolute pair (hinge), and the end of thread is set in the bearing support 2; Fixing through stop nut 3, and can endwisely slip.Thread 1 constitutes the pair that endwisely slips with bearing support 2, can about endwisely slip.The screw thread of thread 1 adopts rectangle, and cooperates with corresponding stop nut 3.
Maximum angle when the end of thread of thread 1 is regulated air legs with hammer drill body and drill steel work with stop nut 3 limiting the increase of this angle, thereby prevents the drill steel bending.Because along with the propelling of boring, the angle that air leg and hammer drill body and screw thread drill steel are 1 reduces gradually, for keeping the following state at limit angle, stop nut 3 can adopt the form of band ear, operates with the convenient working personnel adjustment.Because in the rock drilling process, along with the propelling of boring, the operating personnel generally can not move the body fulcrum far away of air leg at any time, thereby the angle between air leg and hammer drill body and drill steel can reduce gradually thereupon, therefore device can not reduce to retrain to this angle.
Embodiment 2: shown in Fig. 1-2, the limit angle apparatus is housed between hammer drill and air leg, the limit angle apparatus is made up of thread 1, bearing support 2 and stop nut 3; Bearing support 2 is positioned on the hammer drill handle 4; Be connected with revolute pair with hammer drill handle 4, the non-threaded end of thread 1 is connected with air leg with the mode of revolute pair (anchor ear adds hinged), and the end of thread is set in the bearing support 2; Fixing through stop nut 3, and can endwisely slip.Thread 1 constitutes the pair that endwisely slips with bearing support 2, can about endwisely slip.The screw thread of thread 1 adopts trapezoidal, and cooperates with corresponding stop nut 3.
Claims (3)
- One kind with the limit angle apparatus pusher leg drill; It is characterized in that: the limit angle apparatus is housed between hammer drill and air leg, and the limit angle apparatus is made up of thread (1), bearing support (2) and stop nut (3), and bearing support (2) is positioned on the hammer drill handle (4); Be connected with revolute pair with hammer drill handle (4); The non-threaded end of thread (1) is connected with air leg with revolute pair, and the end of thread is set in the bearing support (2), and is fixing through stop nut (3).
- 2. the pusher leg drill of band limit angle apparatus according to claim 1 is characterized in that: thread (1) constitutes the pair that endwisely slips with bearing support (2).
- 3. the pusher leg drill of band limit angle apparatus according to claim 1, it is characterized in that: the screw thread of thread (1) adopts rectangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202539884U CN202181850U (en) | 2011-07-19 | 2011-07-19 | Air-leg type rock drill with angle limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202539884U CN202181850U (en) | 2011-07-19 | 2011-07-19 | Air-leg type rock drill with angle limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181850U true CN202181850U (en) | 2012-04-04 |
Family
ID=46174892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202539884U Expired - Fee Related CN202181850U (en) | 2011-07-19 | 2011-07-19 | Air-leg type rock drill with angle limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202181850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971003A (en) * | 2014-05-13 | 2014-08-06 | 永州市鑫东森机械装备有限公司 | Thrust calculating and regulating method for rock drill |
| CN114370227A (en) * | 2021-12-10 | 2022-04-19 | 中国一冶集团有限公司 | Automatic static explosion drilling device |
-
2011
- 2011-07-19 CN CN2011202539884U patent/CN202181850U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971003A (en) * | 2014-05-13 | 2014-08-06 | 永州市鑫东森机械装备有限公司 | Thrust calculating and regulating method for rock drill |
| CN114370227A (en) * | 2021-12-10 | 2022-04-19 | 中国一冶集团有限公司 | Automatic static explosion drilling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20140719 |
|
| EXPY | Termination of patent right or utility model |