CN201705202U - Improved roller bit drilling machine - Google Patents
Improved roller bit drilling machine Download PDFInfo
- Publication number
- CN201705202U CN201705202U CN 201020238753 CN201020238753U CN201705202U CN 201705202 U CN201705202 U CN 201705202U CN 201020238753 CN201020238753 CN 201020238753 CN 201020238753 U CN201020238753 U CN 201020238753U CN 201705202 U CN201705202 U CN 201705202U
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- CN
- China
- Prior art keywords
- rod
- drill
- hollow shaft
- drilling machine
- upper boom
- 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 - Fee Related
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Abstract
An improved roller bit drilling machine comprises an electric motor and a speed reducer. The electric motor is connected with the speed reducer. An output shaft of the speed reducer is a hollow shaft. A drill rod is connected on the hollow shaft. A drill bit is arranged at the end of the drill rod. The improved roller bit drilling machine is characterized in that: the drill rod is a reducing rod; the drill rod is composed of an upper rod and a lower rod; one end of the upper rod is provided with external thread connected with the hollow shaft; the other end of the upper rod is provided with internal thread connected with the lower rod; one end of the lower rod is provided with external thread connected with the upper rod; the other end of the lower rod is provided with internal thread connected with the drill bit. The improved roller bit drilling machine has simple structure and is convenient to use. The drill bit can be placed by the drill bits with different diameters according to the demand of the drill hole.
Description
Technical field:
The utility model is mainly used in rock-boring, is specifically related to a kind of improved rotary drill.
Background technology:
Rotary drill is one of large-scale surface mining main equipment, and its function is to go up perforation (upright opening) at rock (ore deposit), for explosion provides mesh.It comprises motor, reducer, the motor connection reducer, and the output shaft of reducer is a hollow shaft, jointed rod on the hollow shaft, drill bit is installed in the end of drilling rod, and the diameter of drill bit is 250 millimeters.
In the manufacturing process, stope divides bench excavation, be called safety bench (wait the top rubble to fall down for preventing to come down and directly pound the buffering step that stays on the equipment) for assurance personnel, device security etc. will stay a part before each step (chapelet face) is by group, be called side slope by the step after helping.Before each step is by group, to wear in a row pre-ceasma with rotary drill, put an explosive during explosion less (for making the side slope infringement less, float stone will reduce like this), along with the increasing and constantly adopt down of operation step, safety bench increases relatively gradually, and side slope increases, cause the side slope instability after rotary drill perforation (because the aperture the is big) explosion, landslide, top and float stone constantly fall, and bring numerous harm to equipment and production, produce unsafe factor.Can't adopt half hole blasting technique to protect the stability of side slope because the rotary drill aperture is bigger than normal.
Summary of the invention:
In order to adopt half hole blasting technique according to different side slopes, the utility model provides a kind of improved rotary drill.
The utility model comprises motor, reducer, the motor connection reducer, and the output shaft of reducer is a hollow shaft, jointed rod on the hollow shaft, drill bit is installed in the end of drilling rod, it is characterized in that drilling rod is the reducing bar.
Described drilling rod is made of upper boom and lower beam, one end of upper boom is provided with the external screw thread that is connected with hollow shaft, the other end of upper boom is provided with the internal thread that is connected with lower beam, and an end of lower beam is provided with the external screw thread that is connected with upper boom, and the other end of lower beam is provided with the internal thread that is connected with drill bit.
The utility model is simple in structure, and is easy to use, and drill bit can carry out the drill bit of different-diameter with the needs of boring and replace.
Description of drawings:
Fig. 1 is the structure chart (broken section) of the utility model embodiment.
Among the figure, 1, motor, 2, reducer, 3, hollow shaft, 4, upper boom, 5, lower beam, 6, drill bit.
The specific embodiment:
Embodiment: shown in Figure 1, present embodiment comprises motor 1, reducer 2, motor 1 connection reducer 2, the output shaft of reducer 2 is hollow shafts 3, hollow shaft 3 is by the drilling rod that is threaded, the end of drilling rod is equipped with drill bit 6 by screw thread, it is characterized in that drilling rod 4 is the reducing bar, drilling rod 4 is made of upper boom 4 and lower beam 5, the diameter of close hollow shaft 3 positions of upper boom 4 is thick than the diameter at other position, and an end of upper boom 4 is provided with the external screw thread that is connected with hollow shaft 3, and the other end of upper boom 4 is provided with the internal thread that is connected with lower beam 5, one end of lower beam 5 is provided with the external screw thread that is connected with upper boom 4, and the other end of lower beam 5 is provided with the internal thread that is connected with drill bit 6.
Claims (2)
1. improved rotary drill comprises motor, reducer, the motor connection reducer, and the output shaft of reducer is a hollow shaft, jointed rod on the hollow shaft, drill bit is installed in the end of drilling rod, it is characterized in that drilling rod is the reducing bar.
2. improved rotary drill according to claim 1, it is characterized in that described drilling rod is made of upper boom and lower beam, one end of upper boom is provided with the external screw thread that is connected with hollow shaft, the other end of upper boom is provided with the internal thread that is connected with lower beam, one end of lower beam is provided with the external screw thread that is connected with upper boom, and the other end of lower beam is provided with the internal thread that is connected with drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020238753 CN201705202U (en) | 2010-06-23 | 2010-06-23 | Improved roller bit drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020238753 CN201705202U (en) | 2010-06-23 | 2010-06-23 | Improved roller bit drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705202U true CN201705202U (en) | 2011-01-12 |
Family
ID=43442357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020238753 Expired - Fee Related CN201705202U (en) | 2010-06-23 | 2010-06-23 | Improved roller bit drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510847A (en) * | 2013-09-10 | 2014-01-15 | 安徽三山机械制造有限公司 | Roller cone drilling machine capable of controlling jet velocity of compressed gas |
-
2010
- 2010-06-23 CN CN 201020238753 patent/CN201705202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510847A (en) * | 2013-09-10 | 2014-01-15 | 安徽三山机械制造有限公司 | Roller cone drilling machine capable of controlling jet velocity of compressed gas |
| CN103510847B (en) * | 2013-09-10 | 2016-03-30 | 安徽三山机械制造有限公司 | A kind of rotary drill of controlled Compressed Gas injection rate |
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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: 20110112 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |