CN102996076A - Drilling bit of horizontal directional drilling machine - Google Patents
Drilling bit of horizontal directional drilling machine Download PDFInfo
- Publication number
- CN102996076A CN102996076A CN2012105061784A CN201210506178A CN102996076A CN 102996076 A CN102996076 A CN 102996076A CN 2012105061784 A CN2012105061784 A CN 2012105061784A CN 201210506178 A CN201210506178 A CN 201210506178A CN 102996076 A CN102996076 A CN 102996076A
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- drill bit
- horizontal directional
- drilling machine
- drilling
- drilling bit
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Abstract
The invention discloses a drilling bit of a horizontal directional drilling machine. The drilling bit comprises a connecting sleeve, a flat drilling bit, a locating rod and a rubber washer, wherein one end of the connecting sleeve is welded with the flat drilling bit, and the other end of the connecting sleeve is connected with a drill rod and is provided with a round hole; the locating rod is arranged in the round hole; and the rubber washer is arranged at the bottom of the round hole and between the locating rod and the bottom of the round hole. During operation, the drilling bit is driven to rotate by virtue of a hydraulic motor and advances toward the ground by virtue of a chain spoke transmission mechanism; and after the drilling bit drills into the ground for certain depth, a receiver of the horizontal directional drilling machine receives a signal sent from the locating rod, and the direction of the drilling bit is readjusted according to the signal monitored by the locating rod. The drilling bit of the horizontal directional drilling machine disclosed by the invention has the advantages that the drilling diameter of a drill hole can be adjusted according to actual requirements so as to punch a hole with a proper size, so that the hole forming accuracy is high, energy consumption is greatly reduced, and the working efficiency of the horizontal direction drilling machine is improved.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of drill bit that is applied to horizontal directional drilling machine.
Background technology
Horizontal directional drilling machine is based on the Novel underground pipeline construction engineering machinery that advanced " trenchless technology " theory is designed and developed; because this equipment adopts all-hydraulic and power drive technology; and have propelling, revolution, return and expand, return the functions such as holder and running gear driving; at present; be widely used in railroad crossing, highway, building, river and under the condition of the difficult excavations such as Culture preservation district, business district and crops and vegetation protection district, supply water, laying and the maintenance of the pipeline such as coal gas, electric power, telecommunication cable, natural gas, oil.
But, because the drill-shape of most of horizontal directional drilling machine is rather single, and is difficult for carrying out steering operation, greatly affected the precision of a rate of advance and the directional drilling of pipeline.
Therefore, how to solve the problem that present horizontal directional drilling machine drill bit is difficult for steering operation, become horizontal directional drilling machine manufacturer and used one of important process of merchant.
Summary of the invention
Based on the existing problem of prior art, main purpose of the present invention is to provide a kind of drilling efficiency high, and borehole accuracy is high, can easily advance, turns round, return the horizontal directional drilling machine drill bit of operations such as expanding, turn to, has improved the precision of operating efficiency and directional drilling.
To achieve these goals, horizontal directional drilling machine drill bit of the present invention is by the following technical solutions:
Described horizontal directional drilling machine drill bit comprises branch sleeve, dull and stereotyped drill bit and locating bar, wherein, described branch sleeve one end and the welding of dull and stereotyped drill bit, the other end links to each other with drilling rod, and is offering a circular hole, and described locating bar is installed in this circular hole.
Further, also comprise a rubber washer, it is arranged in described circular hole bottom and between circular hole bottom and locating bar.
Further, the angle between described branch sleeve and the dull and stereotyped drill bit is 140 °～160 °.
Further, at described branch sleeve and the port inside fire attack that offers the circular hole end screw thread is arranged.
Further, the angle between described branch sleeve and the dull and stereotyped drill bit is 150 °.
The advantage of horizontal directional drilling machine drill bit of the present invention for can by the monitoring drill bit pierce the degree of depth and with the deviation of outlet, to the drill bit adjustment that commutates, both improved a rate of advance easily, also improved borehole accuracy, have practical value.
Description of drawings
Fig. 1 is the overview of horizontal directional drilling machine drill bit of the present invention;
Fig. 2 is the lateral view of horizontal directional drilling machine drill bit of the present invention;
Fig. 3 is the upward view of horizontal directional drilling machine drill bit of the present invention.
The specific embodiment
Come horizontal directional drilling machine drill bit of the present invention is described in further detail below in conjunction with accompanying drawing and specific embodiment.
Horizontal directional drilling machine drill bit of the present invention has the function of steering operation, and referring to Fig. 1, Fig. 2 and shown in Figure 3, this drill bit comprises branch sleeve 10, dull and stereotyped drill bit 11, locating bar 12 and rubber washer 13; Wherein, described branch sleeve 10 1 ends and the welding of dull and stereotyped drill bit, the other end offers a circular hole 101, and in this port inside fire attack screw thread is arranged, with the jointed rod (not shown); Described dull and stereotyped drill bit 11 is mainly in order to drill bit commutation and reaming; Described locating bar 12 is installed in this circular hole 101, and in order to drill bit commutation monitoring and transmit; Described rubber washer 13 is for being installed on above-mentioned circular hole bottom and between locating bar 12 and circular hole 101 bottoms, in order to 12 cushioning effects of locating bar, preventing that locating bar 12 from directly touching circular hole 101 bottoms.
In addition, in the present invention, because described dull and stereotyped drill bit 11 is for being welded at an angle branch sleeve 10 1 ends, so the angle (not shown) between itself and the branch sleeve 10 can be selected in 140 °～160 ° scopes, during practical application, for so that boring better effects if, then this angle may be selected to be 150 °
During work, at first, should be installed on the drilling rod by drill bit of the present invention, secondly, drilling rig hydraulic system drives hydraulic motor work, and then drives this bit, duration of work, this drill bit of chain spoke transmission mechanism translational thrust of rig.
During work, reception controller (not shown) in the horizontal directional drilling machine operating room can receive the monitor signal that locating bar 12 sends in real time, be the degree of depth that pierces of drill bit and the deviation of outlet, and at first go to determine whether predetermined value according to this monitor signal, not then to adjust the direction of dull and stereotyped drill bit 11, in the present invention as crossing, the direction of drill bit can be divided into 8 directions and can 360 ° of commutations, and adjustment process is as follows:
Receive controller and send instruction, dull and stereotyped drill bit 11 points to (inclined-plane tangential direction) target direction, then by chain spoke transmission mechanism advance, rotary manipulation hockets commutation, behind the good target direction to be adjusted, bit, forward operation carry out simultaneously, and guarantee that horizontal drill bit continues to keep certain orientation, after drilling rod all enters, the drill bit reverse rotation, and break away from drilling rod and retreat, again access another root drilling rod, continue aforesaid operations, so circulation is until get through, during locating bar 12 monitor in real time.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. a horizontal directional drilling machine drill bit is characterized in that, comprises branch sleeve, dull and stereotyped drill bit and locating bar, wherein, described branch sleeve one end and the welding of dull and stereotyped drill bit, the other end links to each other with drilling rod, and offering a circular hole, described locating bar is installed in this circular hole.
2. described horizontal directional drilling machine drill bit according to claim 1 is characterized in that, also comprises a rubber washer, and it is arranged in described circular hole bottom and between circular hole bottom and locating bar.
3. described horizontal directional drilling machine drill bit according to claim 1 is characterized in that the angle between described branch sleeve and the dull and stereotyped drill bit is 140 °～160 °.
4. described horizontal directional drilling machine drill bit according to claim 1 is characterized in that, at described branch sleeve and the port inside fire attack that offers the circular hole end screw thread is arranged.
5. described horizontal directional drilling machine drill bit according to claim 3 is characterized in that the angle between described branch sleeve and the dull and stereotyped drill bit is 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105061784A CN102996076A (en) | 2012-11-27 | 2012-11-27 | Drilling bit of horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105061784A CN102996076A (en) | 2012-11-27 | 2012-11-27 | Drilling bit of horizontal directional drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996076A true CN102996076A (en) | 2013-03-27 |
Family
ID=47925123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105061784A Pending CN102996076A (en) | 2012-11-27 | 2012-11-27 | Drilling bit of horizontal directional drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996076A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481541A (en) * | 1973-11-26 | 1977-08-03 | Continental Oil Co | Control system for a drilling apparatus |
| US5148880A (en) * | 1990-08-31 | 1992-09-22 | The Charles Machine Works, Inc. | Apparatus for drilling a horizontal controlled borehole in the earth |
| EP0857852A2 (en) * | 1997-02-05 | 1998-08-12 | Railhead Underground Products LLC | Method for horizontal directional drilling of rock formations |
| WO2001006085A1 (en) * | 1999-07-16 | 2001-01-25 | Earth Tool Company, L.L.C. | Improved sonde housing structure |
| US20020011359A1 (en) * | 2000-07-28 | 2002-01-31 | Webb Charles T. | Directional drilling apparatus with shifting cam |
-
2012
- 2012-11-27 CN CN2012105061784A patent/CN102996076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481541A (en) * | 1973-11-26 | 1977-08-03 | Continental Oil Co | Control system for a drilling apparatus |
| US5148880A (en) * | 1990-08-31 | 1992-09-22 | The Charles Machine Works, Inc. | Apparatus for drilling a horizontal controlled borehole in the earth |
| EP0857852A2 (en) * | 1997-02-05 | 1998-08-12 | Railhead Underground Products LLC | Method for horizontal directional drilling of rock formations |
| WO2001006085A1 (en) * | 1999-07-16 | 2001-01-25 | Earth Tool Company, L.L.C. | Improved sonde housing structure |
| US20020011359A1 (en) * | 2000-07-28 | 2002-01-31 | Webb Charles T. | Directional drilling apparatus with shifting cam |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |